############################################################################## # # # Image CIF Dictionary (imgCIF) # # and Crystallographic Binary File Dictionary (CBF) # # Extending the Macromolecular CIF Dictionary (mmCIF) # # # # Version 1.0 # # of 2000-12-21 # # # # Adapted from the # # imgCIF Workshop, BNL Oct 1997 # # and # # Crystallographic Binary File Format Draft Proposal # # by Andy Hammersley # # # ############################################################################## # # # First DDL 2.1 Version # # by # # John Westbrook # # Nucleic Acid Database # # Rutgers University # # # ############################################################################## # These revisions by: Herbert J. Bernstein, yaya@bernstein-plus-sons.com # # Incorporating comments by I. David Brown, John Westbrook and Brian McMahon # ############################################################################## data_cif_img.dic _dictionary.title cif_img.dic _dictionary.version 1.0 _dictionary.datablock_id cif_img.dic ############################################################################## # CONTENTS # # CATEGORY_GROUP_LIST # # category ARRAY_DATA # # _array_data.array_id # _array_data.binary_id # _array_data.data # # category ARRAY_ELEMENT_SIZE # # _array_element_size.array_id # _array_element_size.index # _array_element_size.size # # category ARRAY_INTENSITIES # # _array_intensities.array_id # _array_intensities.binary_id # _array_intensities.gain # _array_intensities.gain_esd # _array_intensities.linearity # _array_intensities.offset # _array_intensities.scaling # _array_intensities.overload # _array_intensities.undefined_value # # category ARRAY_STRUCTURE # # _array_structure.byte_order # _array_structure.compression_type # _array_structure.encoding_type # _array_structure.id # # category ARRAY_STRUCTURE_LIST # # _array_structure_list.array_id # _array_structure_list.dimension # _array_structure_list.direction # _array_structure_list.index # _array_structure_list.precedence # # category AXIS # # _axis.depends_on # _axis.equipment # _axis.id # _axis.offset[1] # _axis.offset[2] # _axis.offset[3] # _axis.type # _axis.vector[1] # _axis.vector[2] # _axis.vector[3] # # category DIFFRN_DETECTOR # # _diffrn_detector.details # _diffrn_detector.detector # _diffrn_detector.diffrn_id # _diffrn_detector.dtime # _diffrn_detector.id # _diffrn_detector.number_of_axes # _diffrn_detector.type # # category DIFFRN_DETECTOR_AXIS # # _diffrn_detector_axis.id # _diffrn_detector_axis.axis_id # # category DIFFRN_DETECTOR_ELEMENT # # _diffrn_detector_element.center[1] # _diffrn_detector_element.center[2] # _diffrn_detector_element.id # _diffrn_detector_element.detector_id # # category DIFFRN_FRAME_DATA # # _diffrn_frame_data.array_id # _diffrn_frame_data.binary_id # _diffrn_frame_data.detector_element_id # _diffrn_frame_data.id # # category DIFFRN_MEASUREMENT # # _diffrn_measurement.diffrn_id # _diffrn_measurement.details # _diffrn_measurement.device # _diffrn_measurement.device_details # _diffrn_measurement.device_type # _diffrn_measurement.id # _diffrn_measurement.method # _diffrn_measurement.number_of_axes # _diffrn_measurement.specimen_support # # category DIFFRN_MEASUREMENT_AXIS # # _diffrn_measurement_axis.id # _diffrn_measurement_axis.axis_id # # category DIFFRN_REFLN # # _diffrn_refln.frame_id # # category DIFFRN_SCAN # # _diffrn_scan.id # _diffrn_scan.integration_time # _diffrn_scan.frame_id_start # _diffrn_scan.frame_id_end # _diffrn_scan.frames # # category DIFFRN_SCAN_AXIS # # _diffrn_scan_axis.scan_id # _diffrn_scan_axis.axis_id # _diffrn_scan_axis.angle_start # _diffrn_scan_axis.angle_range # _diffrn_scan_axis.angle_increment # _diffrn_scan_axis.displacement_start # _diffrn_scan_axis.displacement_range # _diffrn_scan_axis.displacement_increment # # category DIFFRN_SCAN_FRAME # # _diffrn_scan_frame.frame_id # _diffrn_scan_frame.frame_number # _diffrn_scan_frame.integration_time # _diffrn_scan_frame.scan_id # # category DIFFRN_SCAN_FRAME_AXIS # # _diffrn_scan_frame_axis.axis_id # _diffrn_scan_frame_axis.angle # _diffrn_scan_frame_axis.displacement # _diffrn_scan_frame_axis.frame_id # # ITEM_TYPE_LIST # ITEM_UNITS_LIST # DICTIONARY_HISTORY # ############################################################################## ######################### ## CATEGORY_GROUP_LIST ## ######################### loop_ _category_group_list.id _category_group_list.parent_id _category_group_list.description 'inclusive_group' . ; Categories that belong to the dictionary extension. ; 'array_data_group' 'inclusive_group' ; Categories that describe array data. ; 'axis_group' 'inclusive_group' ; Categories that describe axes. ; 'diffrn_group' 'inclusive_group' ; Categories that describe details of the diffraction experiment. ; ############## # ARRAY_DATA # ############## save_ARRAY_DATA _category.description ; Data items in the ARRAY_DATA category are the containers for the array data items described in category ARRAY_STRUCTURE. ; _category.id array_data _category.mandatory_code no loop_ _category_key.name '_array_data.array_id' '_array_data.binary_id' loop_ _category_group.id 'inclusive_group' 'array_data_group' loop_ _category_examples.detail _category_examples.case # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Example 1 - This example shows two binary data blocks. The first one was compressed by the CBF_CANONICAL compression algorithm and presented as hexadecimal data. The first character "H" on the data lines means hexadecimal. It could have been "O" for octal or "D" for decimal. The second character on the line shows the number of bytes in each word (in this case "4"), which then requires 8 hexadecimal digits per word. The third character gives the order of octets within a word, in this case "<" for the ordering 4321 (i.e. "big-endian"). Alternatively the character ">" could have been used for the ordering 1234 (i.e. "little-endian"). The block has a "message digest" to check the integrity of the data. The second block is similar, but uses CBF_PACKED compression and BASE64 encoding. Note that the size and the digest are different. ; ; loop_ _array_data.array_id _array_data.binary_id _array_data.data image_1 1 ; --CIF-BINARY-FORMAT-SECTION-- Content-Type: application/octet-stream; conversions="x-CBF_CANONICAL" Content-Transfer-Encoding: X-BASE16 X-Binary-Size: 3927126 X-Binary-ID: 1 Content-MD5: u2sTJEovAHkmkDjPi+gWsg== # Hexadecimal encoding, byte 0, byte order ...21 # H4< 0050B810 00000000 00000000 00000000 000F423F 00000000 00000000 ... .... --CIF-BINARY-FORMAT-SECTION---- ; image_2 2 ; --CIF-BINARY-FORMAT-SECTION-- Content-Type: application/octet-stream; conversions="x-CBF-PACKED" Content-Transfer-Encoding: BASE64 X-Binary-Size: 3745758 X-Binary-ID: 1 Content-MD5: 1zsJjWPfol2GYl2V+QSXrw== ELhQAAAAAAAA... ... --CIF-BINARY-FORMAT-SECTION---- ; ; # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - save_ save__array_data.array_id _item_description.description ; This item is a pointer to _array_structure.id in the ARRAY_STRUCTURE category. ; _item.name '_array_data.array_id' _item.category_id array_data _item.mandatory_code yes _item_type.code code save_ save__array_data.binary_id _item_description.description ; This item is an integer identifier which, along with _array_data.array_id should uniquely identify the particular block of array data. If _array_data.binary_id is not explicitly given, it defaults to 1. The value of _array_data.binary_id distinguishes among multiple sets of data with the same array structure. If the MIME header of the data array specifies a value for X-Binary-Id, these values should be equal. ; loop_ _item.name _item.category_id _item.mandatory_code '_array_data.binary_id' array_data implicit '_diffrn_frame_data.binary_id' diffrn_frame_data implicit '_array_intensities.binary_id' array_intensities implicit loop_ _item_linked.child_name _item_linked.parent_name '_diffrn_frame_data.binary_id' '_array_data.binary_id' '_array_intensities.binary_id' '_array_data.binary_id' _item_default.value 1 _item_type.code int loop_ _item_range.maximum _item_range.minimum 1 1 . 1 save_ save__array_data.data _item_description.description ; The value of _array_data.data contains the array data encapsulated in a STAR string. The representation used is a variant on the Multipurpose Internet Mail Extensions (MIME) specified in RFC 2045-2049 by N. Freed et al. The boundary delimiter used in writing an imgCIF or CBF is "--CIF-BINARY-FORMAT-SECTION--" (including the required initial "--"). The Content-Type may be any of the discrete types permitted in RFC 2045; "application/octet-stream" is recommended. If an octet stream was compressed, the compression should be specified by the parameter 'conversions="x-CBF_PACKED"' or the parameter 'conversions="x-CBF_CANONICAL"'. The Content-Transfer-Encoding may be "BASE-64", "Quoted-Printable", "X-BASE-8", "X-BASE-10", or "X-BASE-16" for an imgCIF or "BINARY" for a CBF. The octal, decimal and hexadecimal transfer encodings are for convenience in debugging, and are not recommended for archiving and data interchange. In an imgCIF file, the encoded binary data begins after the empty line terminating the header. In a CBF, the raw binary data begins after an empty line terminating the header and after the sequence: Octet Hex Decimal Purpose 0 0C 12 (ctrl-L) Page break 1 1A 26 (ctrl-Z) Stop listings in MS-DOS 2 04 04 (Ctrl-D) Stop listings in UNIX 3 D5 213 Binary section begins None of these octets are included in the calculation of the message size, nor in the calculation of the message digest. The X-Binary-Size header specifies the size of the equivalent binary data in octets. If compression was used, this size is the size after compression, including any book-keeping fields. And adjustment is made for the deprecated binary formats in which 8 bytes of binary header are used for the compression type. In that case, the 8 bytes used for the compression type is subtracted from the size, so that the same size will be reported if the compression type is supplied in the MIME header. Use of the MIME header is the recommended way to supply the compression type. In general, no portion of the binary header is included in the calculation of the size. The X-Binary-Element-Type header specifies the type of binary data in the octets, using the same descriptive phrases as in _array_structure.encoding_type. The default value is "unsigned 32-bit integer". An MD5 message digest may, optionally, be used. The "RSA Data Security, Inc. MD5 Message-Digest Algorithm" should be used. No portion of the header is included in the calculation of the message digest. If the Transfer Encoding is "X-BASE-8", "X-BASE-10", or "X-BASE-16", the data is presented as octal, decimal or hexadecimal data organized into lines or words. Each word is created by composing octets of data in fixed groups of 2, 3, 4, 6 or 8 octets, either in the order ...4321 ("big- endian") or 1234... (little-endian). If there are fewer than the specified number of octets to fill the last word, then the missing octets are presented as "==" for each missing octet. Exactly two equal signs are used for each missing octet even for octal and decimal encoding. The format of lines is: rnd xxxxxx xxxxxx xxxxxx where r is "H", "O", or "D" for hexadecimal, octal or decimal, n is the number of octets per word. and d is "<" for ">" for the "...4321" and "1234..." octet orderings respectively. The "==" padding for the last word should be on the appropriate side to correspond to the missing octets, e.g. H4< FFFFFFFF FFFFFFFF 07FFFFFF ====0000 or H3> FF0700 00==== For these hex, octal and decimal formats, only, comments beginning with "#" are permitted to improve readability. BASE64 encoding follows MIME conventions. Octets are in groups of three, c1, c2, c3. The resulting 24 bits are broken into four 6-bit quantities, starting with the high-order six bits (c1 >> 2) of the first octet, then the low-order two bits of the first octet followed by the high-order 4 bits of the second octet ((c1 & 3)<<4 | (c2>>4)), then the bottom 4 bits of the second octet followed by the high order two bits of the last octet ((c2 & 15)<<2 | (c3>>6)), then the bottom six bits of the last octet (c3 & 63). Each of these four quantities is translated into an ASCII character using the mapping: 1 2 3 4 5 6 0123456789012345678901234567890123456789012345678901234567890123 | | | | | | | ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/ With short groups of octets padded on the right with one "=" if c3 is missing, and with "==" if both c2 and c3 are missing. QUOTED-PRINTABLE encoding also follows MIME conventions, copying octets without translation if their ASCII values are 32..38, 42, 48..57, 59..60, 62, 64..126 and the octet is not a ";" in column 1. All other characters are translated to =nn, where nn is the hexadecimal encoding of the octet. All lines are "wrapped" with a terminating "=" (i.e. the MIME conventions for an implicit line terminator are never used). ; _item.name '_array_data.data' _item.category_id array_data _item.mandatory_code yes _item_type.code binary save_ ###################### # ARRAY_ELEMENT_SIZE # ###################### save_ARRAY_ELEMENT_SIZE _category.description ; Data items in the ARRAY_ELEMENT_SIZE category record the physical size of array elements along each array dimension. ; _category.id array_element_size _category.mandatory_code no loop_ _category_key.name '_array_element_size.array_id' '_array_element_size.index' loop_ _category_group.id 'inclusive_group' 'array_data_group' loop_ _category_examples.detail _category_examples.case # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Example 1 - A regular 2D array with a uniform element dimension of 1220 nanometres. ; ; loop_ _array_element_size.array_id _array_element_size.index _array_element_size.size image_1 1 1.22e-6 image_1 2 1.22e-6 ; # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - save_ save__array_element_size.array_id _item_description.description ; This item is a pointer to _array_structure.id in the ATOM_STRUCTURE category. ; _item.name '_array_element_size.array_id' _item.category_id array_element_size _item.mandatory_code yes _item_type.code code save_ save__array_element_size.index _item_description.description ; This item is a pointer to _array_structure_list.index in the ATOM_STRUCTURE_LIST category. ; _item.name '_array_element_size.index' _item.category_id array_element_size _item.mandatory_code yes _item_type.code code save_ save__array_element_size.size _item_description.description ; The size in metres of an image element in this dimension. This supposes that the elements are arranged on a regular grid. ; _item.name '_array_element_size.size' _item.category_id array_element_size _item.mandatory_code yes _item_type.code float _item_units.code 'metres' loop_ _item_range.maximum _item_range.minimum . 0.0 save_ ##################### # ARRAY_INTENSITIES # ##################### save_ARRAY_INTENSITIES _category.description ; Data items in the ARRAY_INTENSITIES category record the information required to recover the intensity data from the set of data values stored in the ARRAY_DATA category. ; _category.id array_intensities _category.mandatory_code no loop_ _category_key.name '_array_intensities.array_id' '_array_intensities.binary_id' loop_ _category_group.id 'inclusive_group' 'array_data_group' loop_ _category_examples.detail _category_examples.case # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Example 1 ; ; loop_ _array_intensities.array_id _array_intensities.linearity _array_intensities.gain _array_intensities.overload _array_intensities.undefined_value image_1 linear 1.2 655535 0 ; # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - save_ save__array_intensities.array_id _item_description.description ; This item is a pointer to _array_structure.id in the ATOM_STRUCTURE category. ; _item.name '_array_intensities.array_id' _item.category_id array_intensities _item.mandatory_code yes _item_type.code code save_ save__array_intensities.binary_id _item_description.description ; This item is a pointer to _array_data.binary_id in the ARRAY_STRUCTURE category. ; _item.name '_array_intensities.binary_id' _item.category_id array_intensities _item.mandatory_code implicit _item_type.code int save_ save__array_intensities.gain _item_description.description ; Detector "gain". The factor by which linearized intensity values should be divided to produce counts. ; _item.name '_array_intensities.gain' _item.category_id array_intensities _item.mandatory_code yes _item_type.code float loop_ _item_range.maximum _item_range.minimum . 0.0 loop_ _item_related.related_name _item_related.function_code '_array_intensities.gain_esd' 'associated_value' save_ save__array_intensities.gain_esd _item_description.description ; The estimated standard deviation in detector "gain". ; _item.name '_array_intensities.gain_esd' _item.category_id array_intensities _item.mandatory_code yes _item_type.code float loop_ _item_related.related_name _item_related.function_code '_array_intensities.gain' 'associated_esd' save_ save__array_intensities.linearity _item_description.description ; The intensity linearity scaling used from raw intensity to the stored element value: 'linear' is obvious 'offset' means that the value defined by '_array_intensities.offset' should be added to each element value. 'scaling' means that the value defined by '_array_intensities.scaling' should be multiplied with each element value. 'scaling_offset' is the combination of the two previous cases, with the scale factor applied before the offset value. 'sqrt_scaled' means that the square root of raw intensities multiplied by '_array_intensities.scaling' is calculated and stored, perhaps rounded to the nearest integer. Thus, linearization involves dividing the stored values by '_array_intensities.scaling' and squaring the result. 'logarithmic_scaled' means that the logarithm based 10 of raw intensities multiplied by '_array_intensities.scaling' is calculated and stored, perhaps rounded to the nearest integer. Thus, linearization involves dividing the stored values by '_array_intensities.scaling' and calculating 10 to the power of this number. ; _item.name '_array_intensities.linearity' _item.category_id array_intensities _item.mandatory_code yes _item_type.code code loop_ _item_enumeration.value _item_enumeration.detail 'linear' . 'offset' ; The value defined by '_array_intensities.offset' should be added to each element value. ; 'scaling' ; The value defined by '_array_intensities.scaling' should be multiplied with each element value. ; 'scaling_offset' ; The combination of the scaling and offset with the scale factor applied before the offset value. ; 'sqrt_scaled' ; The square root of raw intensities multiplied by '_array_intensities.scaling' is calculated and stored, perhaps rounded to the nearest integer. Thus, linearization involves dividing the stored values by '_array_intensities.scaling' and squaring the result. ; 'logarithmic_scaled' ; The logarithm based 10 of raw intensities multiplied by '_array_intensities.scaling' is calculated and stored, perhaps rounded to the nearest integer. Thus, linearization involves dividing the stored values by '_array_intensities.scaling' and calculating 10 to the power of this number. ; save_ save__array_intensities.offset _item_description.description ; Offset value to add to array element values in the manner described by item _array_intensities.linearity. ; _item.name '_array_intensities.offset' _item.category_id array_intensities _item.mandatory_code no _item_type.code float save_ save__array_intensities.scaling _item_description.description ; Multiplicative scaling value to be applied to array data in the manner described by item _array_intensities.linearity. ; _item.name '_array_intensities.scaling' _item.category_id array_intensities _item.mandatory_code no _item_type.code float save_ save__array_intensities.overload _item_description.description ; The saturation intensity level for this data array. ; _item.name '_array_intensities.overload' _item.category_id array_intensities _item.mandatory_code no _item_type.code float save_ save__array_intensities.undefined_value _item_description.description ; A value to be substituted for undefined values in the data array. ; _item.name '_array_intensities.undefined_value' _item.category_id array_intensities _item.mandatory_code no _item_type.code float save_ ################### # ARRAY_STRUCTURE # ################### save_ARRAY_STRUCTURE _category.description ; Data items in the ARRAY_STRUCTURE category record the organization and encoding of array data which may be stored in the ARRAY_DATA category. ; _category.id array_structure _category.mandatory_code no _category_key.name '_array_structure.id' loop_ _category_group.id 'inclusive_group' 'array_data_group' loop_ _category_examples.detail _category_examples.case # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Example 1 - ; ; loop_ _array_structure.id _array_structure.encoding_type _array_structure.compression_type _array_structure.byte_order image_1 "unsigned 16-bit integer" none little_endian ; # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - save_ save__array_structure.byte_order _item_description.description ; The order of bytes for integer values which require more than 1-byte. (IBM-PC's and compatibles, and Dec-Vaxes use low-byte-first ordered integers, whereas Hewlett Packard 700 series, Sun-4 and Silicon Graphics use high-byte-first ordered integers. Dec-Alphas can produce/use either depending on a compiler switch.) ; _item.name '_array_structure.byte_order' _item.category_id array_structure _item.mandatory_code yes _item_type.code code loop_ _item_enumeration.value _item_enumeration.detail 'big_endian' ; The first byte in the byte stream of the bytes which make up an integer value is the most significant byte of an integer. ; 'little_endian' ; The last byte in the byte stream of the bytes which make up an integer value is the most significant byte of an integer. ; save_ save__array_structure.compression_type _item_description.description ; Type of data compression method used to compress the array data. ; _item.name '_array_structure.compression_type' _item.category_id array_structure _item.mandatory_code no _item_type.code code _item_default.value 'none' loop_ _item_enumeration.value _item_enumeration.detail 'none' ; Data are stored in normal format as defined by _array_structure.encoding_type and _array_structure.byte_order . ; 'byte_offsets' ; Using the compression scheme defined in CBF definition Section 5.0. ; 'packed' ; Using the 'packed' compression scheme, a CCP4-style packing (CBFlib section 3.3.2) ; 'canonical' ; Using the 'canonical' compression scheme (CBFlib section 3.3.1) ; save_ save__array_structure.encoding_type _item_description.description ; Data encoding of a single element of array data. In several cases, the IEEE format is referenced. See "IEEE Standard for Binary Floating-Point Arithmetic", ANSI/IEEE Std 754-1985, the Institute of Electrical and Electronics Engineers, Inc., NY 1985. ; _item.name '_array_structure.encoding_type' _item.category_id array_structure _item.mandatory_code yes _item_type.code uline loop_ _item_enumeration.value 'unsigned 8-bit integer' 'signed 8-bit integer' 'unsigned 16-bit integer' 'signed 16-bit_integer' 'unsigned 32-bit integer' 'signed 32-bit integer' 'signed 32-bit real IEEE' 'signed 64-bit real IEEE' 'signed 32-bit complex IEEE' save_ save__array_structure.id _item_description.description ; The value of _array_structure.id must uniquely identify each item of array data. ; loop_ _item.name _item.category_id _item.mandatory_code '_array_structure.id' array_structure yes '_array_data.array_id' array_data yes '_array_structure_list.array_id' array_structure_list yes '_array_intensities.array_id' array_intensities yes '_diffrn_frame_data.array_id' diffrn_frame_data yes _item_type.code code loop_ _item_linked.child_name _item_linked.parent_name '_array_data.array_id' '_array_structure.id' '_array_structure_list.array_id' '_array_structure.id' '_array_intensities.array_id' '_array_structure.id' '_diffrn_frame_data.array_id' '_array_structure.id' save_ ######################## # ARRAY_STRUCTURE_LIST # ######################## save_ARRAY_STRUCTURE_LIST _category.description ; Data items in the ARRAY_STRUCTURE_LIST category record the size and organization of each array dimension. ; _category.id array_structure_list _category.mandatory_code no loop_ _category_key.name '_array_structure_list.array_id' '_array_structure_list.index' loop_ _category_group.id 'inclusive_group' 'array_data_group' loop_ _category_examples.detail _category_examples.case # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Example 1 - An image array of 1300 x 1200 elements. The raster order of the image is left-to-right (increasing) in first dimension and bottom-to-top (decreasing) in the second dimension. ; ; loop_ _array_structure_list.array_id _array_structure_list.index _array_structure_list.dimension _array_structure_list.precedence _array_structure_list.direction image_1 1 1300 1 increasing image_1 2 1200 2 decreasing ; # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - save_ save__array_structure_list.array_id _item_description.description ; This item is a pointer to _array_structure.id in the ATOM_STRUCTURE category. ; _item.name '_array_structure_list.array_id' _item.category_id array_structure_list _item.mandatory_code yes _item_type.code code save_ save__array_structure_list.dimension _item_description.description ; The number of elements stored in the array structure in this dimension. ; _item.name '_array_structure_list.dimension' _item.category_id array_structure_list _item.mandatory_code yes _item_type.code int loop_ _item_range.maximum _item_range.minimum 1 1 . 1 save_ save__array_structure_list.direction _item_description.description ; Identifies the direction in which this array index changes. ; _item.name '_array_structure_list.direction' _item.category_id array_structure_list _item.mandatory_code yes _item_type.code int loop_ _item_enumeration.value _item_enumeration.detail 'increasing' ; Indicates the index changes from 1 to the maximum dimension. ; 'decreasing' ; Indicates the index changes from the maximum dimension to 1. ; save_ save__array_structure_list.index _item_description.description ; Identifies the one-based index of the row or column in the array structure. ; loop_ _item.name _item.category_id _item.mandatory_code '_array_structure_list.index' array_structure_list yes '_array_structure_list.precedence' array_structure_list yes '_array_element_size.index' array_element_size yes _item_type.code int loop_ _item_linked.child_name _item_linked.parent_name '_array_element_size.index' '_array_structure_list.index' loop_ _item_range.maximum _item_range.minimum 1 1 . 1 save_ save__array_structure_list.precedence _item_description.description ; Identifies the rank order in which this array index changes with respect to other array indices. The precedence of 1 indicates the index which changes fastest. ; _item.name '_array_structure_list.precedence' _item.category_id array_structure_list _item.mandatory_code yes _item_type.code int loop_ _item_range.maximum _item_range.minimum 1 1 . 1 save_ ######## # AXIS # ######## save_AXIS _category.description ; Data items in the AXIS category record the information required to describe the various goniometer, detector, source and other axes needed to specify a data collection. The location of each axis is specified by two vectors: the axis itself, given as a unit vector, and an offset to the base of the unit vector. These vectors are referenced to a right-handed laboratory coordinate system with its origin in the sample or specimen: | Y (to complete right-handed system) | | | | | |________________X / principal goniometer axis / / / / /Z (to source) Axis 1 (X): The X-axis is aligned to the mechanical axis pointing from the sample or specimen along the principal axis of the goniometer. Axis 2 (Y): The Y-axis completes an orthogonal right-handed system defined by the X-axis and the Z-axis (see below). Axis 3 (Z): The Z-axis is derived from the source axis which goes from the sample to the source. The Z-axis is the component of the source axis in the direction of the source orthogonal to the X-axis in the plane defined by the X-axis and the source axis. These axes are based on the goniometer, not on the orientation of the detector, gravity, etc. The vectors necessary to specify all other axes are given by sets of three components in the order (X, Y, Z). If the axis involved is a rotation axis, it is right handed, i.e. as one views the object to be rotated from the origin (the tail) of the unit vector, the rotation is clockwise. If a translation axis is specified, the direction of the unit vector specifies the sense of positive translation. All rotations are given in degrees and all translations are given in mm. Axes may be dependent on one another. The X-axis is the only goniometer axis the direction of which is strictly connected to the hardware. All other axes are specified by the positions they would assume when the axes upon which they depend are at their zero points. When specifying detector axes, the axis is given to the beam center. The location of the beam center on the detector should be given in the DIFFRN_DETECTOR category in distortion-corrected mm from the (0,0) corner of the detector. It should be noted that many different origins arise in the definition of an experiment. In particular, as noted above, we need to specify the location of the beam center on the detector in terms of the origin of the detector, which is, of course, not coincident with the center of the sample. ; _category.id axis _category.mandatory_code no loop_ _category_key.name '_axis.id' '_axis.equipment' loop_ _category_group.id 'inclusive_group' 'axis_group' 'diffrn_group' loop_ _category_examples.detail _category_examples.case # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Example 1 - This example shows the axis specification of the axes of a kappa geometry goniometer (See "X-Ray Structure Determination, A Practical Guide", 2nd ed. by G. H. Stout, L. H. Jensen, Wiley Interscience, 1989, 453 pp, p 134.). There are three axes specified, and no offsets. The outermost axis, omega, is pointed along the X-axis. The next innermost axis, kappa, is at a 50 degree angle to the X-axis, pointed away from the source. The innermost axis, phi, aligns with the X-axis when omega and phi are at their zero-points. If T-omega, T-kappa and T-phi are the transformation matrices derived from the axis settings, the complete transformation would be: x' = (T-omega) (T-kappa) (T-phi) x ; ; loop_ _axis.id _axis.type _axis.equipment _axis.depends_on _axis.vector[1] _axis.vector[2] _axis.vector[3] omega rotation goniometer . 1 0 0 kappa rotation goniometer omega -.64279 0 -.76604 phi rotation goniometer kappa 1 0 0 ; # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Example 2 - This example show the axis specification of the axes of a detector, source and gravity. We have juggled the order as a reminder that the ordering of presentation of tokens is not significant. We have taken the center of rotation of the detector to be 68 millimetres in the direction away from the source. ; ; loop_ _axis.id _axis.type _axis.equipment _axis.depends_on _axis.vector[1] _axis.vector[2] _axis.vector[3] _axis.offset[1] _axis.offset[2] _axis.offset[3] source . source . 0 0 1 . . . gravity . gravity . 0 -1 0 . . . tranz translation detector rotz 0 0 1 0 0 -68 twotheta rotation detector . 1 0 0 . . . roty rotation detector twotheta 0 1 0 0 0 -68 rotz rotation detector roty 0 0 1 0 0 -68 ; # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - save_ save__axis.depends_on _item_description.description ; The value of _axis.type specifies the next outermost axis upon which this axis depends. This item is a pointer to axis.id in the same category. ; _item.name '_axis.depends_on' _item.category_id axis _item.mandatory_code no save_ save__axis.equipment _item_description.description ; The value of _axis.type specifies the type of equipment using the axis: goniometer, detector, gravity, source or general ; _item.name '_axis.equipment' _item.category_id axis _item.mandatory_code no _item_type.code ucode _item_default.value general loop_ _item_enumeration.value _item_enumeration.detail goniometer 'equipment used to orient or position samples' detector 'equipment used to detect reflections' general 'equipment used for general purposes' gravity 'axis specifying the downward direction' source 'axis specifying the direction sample to source' save_ save__axis.offset[1] _item_description.description ; The [1] element of the 3-element vector used to specify the offset to the base of a rotation or translation axis. The vector is specified in millimetres ; _item.name '_axis.offset[1]' _item.category_id axis _item.mandatory_code no _item_default.value 0.0 _item_sub_category.id vector _item_type.code float _item_units.code millimetres save_ save__axis.offset[2] _item_description.description ; The [2] element of the 3-element vector used to specify the offset to the base of a rotation or translation axis. The vector is specified in millimetres ; _item.name '_axis.offset[2]' _item.category_id axis _item.mandatory_code no _item_default.value 0.0 _item_sub_category.id vector _item_type.code float _item_units.code millimetres save_ save__axis.offset[3] _item_description.description ; The [3] element of the 3-element vector used to specify the offset to the base of a rotation or translation axis. The vector is specified in millimetres ; _item.name '_axis.offset[3]' _item.category_id axis _item.mandatory_code no _item_default.value 0.0 _item_sub_category.id vector _item_type.code float _item_units.code millimetres save_ save__axis.id _item_description.description ; The value of _axis.id must uniquely identify each axis relevant to the experiment. Note that multiple pieces of equipment may share the same axis (e.g. a twotheta arm), so that the category key for AXIS also includes the equipment. ; loop_ _item.name _item.category_id _item.mandatory_code '_axis.id' axis yes '_diffrn_detector_axis.axis_id' diffrn_detector_axis yes '_diffrn_measurement_axis.axis_id' diffrn_measurement_axis yes '_diffrn_scan_axis.axis_id' diffrn_scan_axis yes '_diffrn_scan_frame_axis.axis_id' diffrn_scan_frame_axis yes _item_type.code code loop_ _item_linked.child_name _item_linked.parent_name '_axis.depends_on' '_axis.id' '_diffrn_detector_axis.axis_id' '_axis.id' '_diffrn_measurement_axis.axis_id' '_axis.id' '_diffrn_scan_axis.axis_id' '_axis.id' '_diffrn_scan_frame_axis.axis_id' '_axis.id' save_ save__axis.type _item_description.description ; The value of _axis.type specifies the type of axis: rotation, translation (or general when the type is not relevant, as for gravity) ; _item.name '_axis.type' _item.category_id axis _item.mandatory_code no _item_type.code ucode _item_default.value general loop_ _item_enumeration.value _item_enumeration.detail rotation 'right-handed axis of rotation' translation 'translation in the direction of the axis' general 'axis for which the type is not relevant' save_ save__axis.vector[1] _item_description.description ; The [1] element of the 3-element vector used to specify the direction of a rotation or translation axis. The vector should be normalized to be a unit vector, and is dimensionless. ; _item.name '_axis.vector[1]' _item.category_id axis _item.mandatory_code no _item_default.value 0.0 _item_sub_category.id vector _item_type.code float save_ save__axis.vector[2] _item_description.description ; The [2] element of the 3-element vector used to specify the direction of a rotation or translation axis. The vector should be normalized to be a unit vector, and is dimensionless. ; _item.name '_axis.vector[2]' _item.category_id axis _item.mandatory_code no _item_default.value 0.0 _item_sub_category.id vector _item_type.code float save_ save__axis.vector[3] _item_description.description ; The [3] element of the 3-element vector used to specify the direction of a rotation or translation axis. The vector should be normalized to be a unit vector, and is dimensionless. ; _item.name '_axis.vector[3]' _item.category_id axis _item.mandatory_code no _item_default.value 0.0 _item_sub_category.id vector _item_type.code float save_ ########################################################################## # The following is a restatement of the mmCIF DIFFRN_DETECTOR and # # DIFFRN_MEASUREMENT categories, modified for the CBF/imgCIF extensions # ########################################################################## ################### # DIFFRN_DETECTOR # ################### save_DIFFRN_DETECTOR _category.description ; Data items in the DIFFRN_DETECTOR category describe the detector used to measure the scattered radiation, including any analyser and post-sample collimation. ; _category.id diffrn_detector _category.mandatory_code no loop_ _category_key.name '_diffrn_detector.diffrn_id' '_diffrn_detector.id' loop_ _category_group.id 'inclusive_group' 'diffrn_group' loop_ _category_examples.detail _category_examples.case # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Example 1 - based on PDB entry 5HVP and laboratory records for the structure corresponding to PDB entry 5HVP ; ; _diffrn_detector.diffrn_id 'd1' _diffrn_detector.detector 'multiwire' _diffrn_detector.type 'Siemens' ; # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - save_ save__diffrn_detector.details _item_description.description ; A description of special aspects of the radiation detector. ; _item.name '_diffrn_detector.details' _item.category_id diffrn_detector _item.mandatory_code no _item_aliases.alias_name '_diffrn_detector_details' _item_aliases.dictionary cif_core.dic _item_aliases.version 2.0.1 _item_type.code text _item_examples.case ; Need new example here. ; save_ save__diffrn_detector.detector _item_description.description ; The general class of the radiation detector. ; _item.name '_diffrn_detector.detector' _item.category_id diffrn_detector _item.mandatory_code no loop_ _item_aliases.alias_name _item_aliases.dictionary _item_aliases.version '_diffrn_radiation_detector' cifdic.c91 1.0 '_diffrn_detector' cif_core.dic 2.0 _item_type.code text loop_ _item_examples.case 'photographic film' 'scintillation counter' 'CCD plate' 'BF~3~ counter' save_ save__diffrn_detector.diffrn_id _item_description.description ; This data item is a pointer to _diffrn.id in the DIFFRN category. The value of _diffrn.id uniquely defines a set of diffraction data. ; _item.name '_diffrn_detector.diffrn_id' _item.mandatory_code yes save_ save__diffrn_detector.dtime _item_description.description ; The deadtime in microseconds of the detectors used to measure the diffraction intensities. ; _item.name '_diffrn_detector.dtime' _item.category_id diffrn_detector _item.mandatory_code no loop_ _item_aliases.alias_name _item_aliases.dictionary _item_aliases.version '_diffrn_radiation_detector_dtime' cifdic.c91 1.0 '_diffrn_detector_dtime' cif_core.dic 2.0 loop_ _item_range.maximum _item_range.minimum . 0.0 0.0 0.0 _item_type.code float _item_units.code microseconds save_ save__diffrn_detector.id _item_description.description ; The value of _diffrn_detector.id must uniquely identify each detector used to collect each diffraction data set. If the value of _diffrn_detector.id is not given, it is implicitly equal to the value of _diffrn_detector.diffrn_id ; loop_ _item.name _item.category_id _item.mandatory_code '_diffrn_detector.id' diffrn_detector implicit '_diffrn_detector_axis.id' diffrn_detector_axis yes loop_ _item_linked.child_name _item_linked.parent_name '_diffrn_detector_axis.id' '_diffrn_detector.id' _item_type.code code save_ save__diffrn_detector.number_of_axes _item_description.description ; The value of _diffrn_detector.number_of_axes gives the number of axes of the positioner for the detector identified by _diffrn_detector.id The word "positioner" is a general term used in instrumentation design for devices that are used to change the positions of portions of apparatus by linear translation, rotation, or combinations of such motions. The description of each axis should be provided by entries in DIFFRN_DETECTOR_AXIS. ; _item.name '_diffrn_detector.number_of_axes' _item.category_id diffrn_detector _item.mandatory_code no loop_ _item_range.maximum _item_range.minimum . 1 1 1 _item_type.code int save_ save__diffrn_detector.type _item_description.description ; The make, model or name of the detector device used. ; _item.name '_diffrn_detector.type' _item.category_id diffrn_detector _item.mandatory_code no _item_aliases.alias_name '_diffrn_detector_type' _item_aliases.dictionary cif_core.dic _item_aliases.version 2.0.1 _item_type.code text save_ ######################## # DIFFRN_DETECTOR_AXIS # ######################## save_DIFFRN_DETECTOR_AXIS _category.description ; Data items in the DIFFRN_DETECTOR_AXIS category associate axes with detectors. ; _category.id diffrn_detector_axis _category.mandatory_code no loop_ _category_key.name '_diffrn_detector_axis.id' '_diffrn_detector_axis.axis_id' loop_ _category_group.id 'inclusive_group' 'diffrn_group' save_ save__diffrn_detector_axis.id _item_description.description ; This data item is a pointer to _diffrn_detector.id in the DIFFRN_DETECTOR category. ; _item.name '_diffrn_detector_axis.id' _item.category_id diffrn_detector_axis _item.mandatory_code yes save_ save__diffrn_detector_axis.axis_id _item_description.description ; This data item is a pointer to _axis.id in the AXIS category. ; _item.name '_diffrn_detector_axis.axis_id' _item.category_id diffrn_detector_axis _item.mandatory_code yes _item_type.code code save_ ########################### # DIFFRN_DETECTOR_ELEMENT # ########################### save_DIFFRN_DETECTOR_ELEMENT _category.description ; Data items in the DIFFRN_DETECTOR_ELEMENT category record the details about spatial layout and other characteristics of each element of a detector which may have multiple elements. DRAFT NOTE: This category is intended to hold definitions which are specific to the elements of area/array detectors. Generic features about the detector class are defined in the existing mmCIF category DIFFRN_DETECTOR. ; _category.id diffrn_detector_element _category.mandatory_code no loop_ _category_key.name '_diffrn_detector_element.id' '_diffrn_detector_element.detector_id' loop_ _category_group.id 'inclusive_group' 'array_data_group' loop_ _category_examples.detail _category_examples.case # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Example 1 - Detector d1 is composed of four CCD detector elements, each 200 mm by 200 mm, arranged in a square. in the pattern 1 2 * 3 4 Note that the beam center is slightly off of each of the detector elements, just beyond the lower right corner of 1, the lower left corner of 2, the upper right corner of 3 and the upper left corner of 4. ; ; loop_ _diffrn_detector_element.id _diffrn_detector_element.detector_id _diffrn_detector_element.center[1] _diffrn_detector_element.center[2] d1 d1_ccd_1 201.5 -1.5 d1 d1_ccd_2 -1.8 -1.5 d1 d1_ccd_3 201.6 201.4 d1 d1_ccd_4 -1.7 201.5 ; # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - save_ save__diffrn_detector_element.center[1] _item_description.description ; The value of _diffrn_detector_element.center[1] is the X component of the distortion-corrected beam-center in mm from the (0, 0) (lower left) corner of the detector element viewed from the sample side. ; _item.name '_diffrn_detector_element.center[1]' _item.category_id diffrn_detector_element _item.mandatory_code no _item_default.value 0.0 _item_sub_category.id vector _item_type.code float _item_units.code millimetres save_ save__diffrn_detector_element.center[2] _item_description.description ; The value of _diffrn_detector_element.center[2] is the Y component of the distortion-corrected beam-center in mm from the (0, 0) (lower left) corner of the detector element viewed from the sample side. ; _item.name '_diffrn_detector_element.center[2]' _item.category_id diffrn_detector_element _item.mandatory_code no _item_default.value 0.0 _item_sub_category.id vector _item_type.code float _item_units.code millimetres save_ save__diffrn_detector_element.id _item_description.description ; The value of _diffrn_detector_element.id must uniquely identify each element of a detector. ; loop_ _item.name _item.category_id _item.mandatory_code '_diffrn_detector_element.id' diffrn_detector_element yes _item_type.code code loop_ _item_linked.child_name _item_linked.parent_name '_diffrn_frame_data.detector_element_id' '_diffrn_detector_element.id' save_ save__diffrn_detector_element.detector_id _item_description.description ; This item is a pointer to _diffrn_detector.id in the DIFFRN_DETECTOR category. ; _item.name '_diffrn_detector_element.detector_id' _item.category_id diffrn_detector_element _item.mandatory_code yes _item_type.code code save_ ##################### # DIFFRN_FRAME_DATA # ##################### save_DIFFRN_FRAME_DATA _category.description ; Data items in the DIFFRN_FRAME_DATA category record the details about each frame of data. ; _category.id diffrn_frame_data _category.mandatory_code no loop_ _category_key.name '_diffrn_frame_data.id' '_diffrn_frame_data.detector_element_id' loop_ _category_group.id 'inclusive_group' 'array_data_group' loop_ _category_examples.detail _category_examples.case # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Example 1 - A frame containing data from 4 frame elements. Each frame element has a common array configuration 'array_1' described in ARRAY_STRUCTURE and related categories. The data for each detector element is stored in four groups of binary data in the ARRAY_DATA category, linked by the array_id and binary_id ; ; loop_ _diffrn_frame_data.id _diffrn_frame_data.detector_element_id _diffrn_frame_data.array_id _diffrn_frame_data.binary_id frame_1 d1_ccd_1 array_1 1 frame_1 d1_ccd_2 array_1 2 frame_1 d1_ccd_3 array_1 3 frame_1 d1_ccd_4 array_1 4 ; # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - save_ save__diffrn_frame_data.array_id _item_description.description ; This item is a pointer to _array_structure.id in the ARRAY_STRUCTURE category. ; _item.name '_diffrn_frame_data.array_id' _item.category_id diffrn_frame_data _item.mandatory_code yes _item_type.code code save_ save__diffrn_frame_data.binary_id _item_description.description ; This item is a pointer to _array_data.binary_id in the ARRAY_STRUCTURE category. ; _item.name '_diffrn_frame_data.binary_id' _item.category_id diffrn_frame_data _item.mandatory_code implicit _item_type.code int save_ save__diffrn_frame_data.detector_element_id _item_description.description ; This item is a pointer to _diffrn_detector_element.id in the DIFFRN_DETECTOR_ELEMENT category. ; _item.name '_diffrn_frame_data.detector_element_id' _item.category_id diffrn_frame_data _item.mandatory_code yes _item_type.code code save_ save__diffrn_frame_data.id _item_description.description ; The value of _diffrn_frame_data.id must uniquely identify each complete frame of data. ; loop_ _item.name _item.category_id _item.mandatory_code '_diffrn_frame_data.id' diffrn_frame_data yes '_diffrn_refln.frame_id' diffrn_refln yes '_diffrn_scan.frame_id_start' diffrn_scan yes '_diffrn_scan.frame_id_end' diffrn_scan yes '_diffrn_scan_frame.frame_id' diffrn_scan_frame yes '_diffrn_scan_frame_axis.frame_id' diffrn_scan_frame_axis yes _item_type.code code loop_ _item_linked.child_name _item_linked.parent_name '_diffrn_refln.frame_id' '_diffrn_frame_data.id' '_diffrn_scan.frame_id_start' '_diffrn_frame_data.id' '_diffrn_scan.frame_id_end' '_diffrn_frame_data.id' '_diffrn_scan_frame.frame_id' '_diffrn_frame_data.id' '_diffrn_scan_frame_axis.frame_id' '_diffrn_frame_data.id' save_ ######################## ## DIFFRN_MEASUREMENT ## ######################## save_DIFFRN_MEASUREMENT _category.description ; Data items in the DIFFRN_MEASUREMENT category record details about the device used to orient and/or position the crystal during data measurement and the manner in which the diffraction data were measured. ; _category.id diffrn_measurement _category.mandatory_code no loop_ _category_key.name '_diffrn_measurement.diffrn_id' '_diffrn_measurement.id' loop_ _category_group.id 'inclusive_group' 'diffrn_group' loop_ _category_examples.detail _category_examples.case # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Example 1 - based on PDB entry 5HVP and laboratory records for the structure corresponding to PDB entry 5HVP ; ; _diffrn_measurement.diffrn_id 'd1' _diffrn_measurement.device '3-circle camera' _diffrn_measurement.device_type 'Supper model x' _diffrn_measurement.device_details 'none' _diffrn_measurement.method 'omega scan' _diffrn_measurement.details ; Need new example here ; ; # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Example 2 - based on data set TOZ of Willis, Beckwith & Tozer [(1991). Acta Cryst. C47, 2276-2277]. ; ; _diffrn_measurement.diffrn_id 's1' _diffrn_measurement.device_type 'Philips PW1100/20 diffractometer' _diffrn_measurement.method 'theta/2theta (\q/2\q)' ; # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - save_ save__diffrn_measurement.device _item_description.description ; The general class of goniometer or device used to support and orient the specimen. ; _item.name '_diffrn_measurement.device' _item.category_id diffrn_measurement _item.mandatory_code no _item_aliases.alias_name '_diffrn_measurement_device' _item_aliases.dictionary cif_core.dic _item_aliases.version 2.0.1 _item_type.code text loop_ _item_examples.case '3-circle camera' '4-circle camera' 'kappa-geometry camera' 'oscillation camera' 'precession camera' save_ save__diffrn_measurement.device_details _item_description.description ; A description of special aspects of the device used to measure the diffraction intensities. ; _item.name '_diffrn_measurement.device_details' _item.category_id diffrn_measurement _item.mandatory_code no _item_aliases.alias_name '_diffrn_measurement_device_details' _item_aliases.dictionary cif_core.dic _item_aliases.version 2.0.1 _item_type.code text _item_examples.case ; commercial goniometer modified locally to allow for 90\% \t arc ; save_ save__diffrn_measurement.device_type _item_description.description ; The make, model or name of the measurement device (goniometer) used. ; _item.name '_diffrn_measurement.device_type' _item.category_id diffrn_measurement _item.mandatory_code no _item_aliases.alias_name '_diffrn_measurement_device_type' _item_aliases.dictionary cif_core.dic _item_aliases.version 2.0.1 _item_type.code text loop_ _item_examples.case 'Supper model q' 'Huber model r' 'Enraf-Nonius model s' 'homemade' save_ save__diffrn_measurement.diffrn_id _item_description.description ; This data item is a pointer to _diffrn.id in the DIFFRN category. ; _item.name '_diffrn_measurement.diffrn_id' _item.mandatory_code yes save_ save__diffrn_measurement.details _item_description.description ; A description of special aspects of the intensity measurement. ; _item.name '_diffrn_measurement.details' _item.category_id diffrn_measurement _item.mandatory_code no _item_aliases.alias_name '_diffrn_measurement_details' _item_aliases.dictionary cif_core.dic _item_aliases.version 2.0.1 _item_type.code text _item_examples.case ; 440 frames, 0.20 degrees, 150 sec, detector distance 12 cm, detector angle 22.5 degrees ; save_ save__diffrn_measurement.id _item_description.description ; The value of _diffrn_measurement.id must uniquely identify the set of mechanical characteristics of the device used to orient and/or position the sample used during collection of each diffraction data set. If the value of _diffrn_measurement.id is not given, it is implicitly equal to the value of _diffrn_measurement.diffrn_id ; loop_ _item.name _item.category_id _item.mandatory_code '_diffrn_measurement.id' diffrn_measurement implicit '_diffrn_measurement_axis.id' diffrn_measurement_axis yes loop_ _item_linked.child_name _item_linked.parent_name '_diffrn_measurement_axis.id' '_diffrn_measurement.id' _item_type.code code save_ save__diffrn_measurement.method _item_description.description ; Method used to measure intensities. ; _item.name '_diffrn_measurement.method' _item.category_id diffrn_measurement _item.mandatory_code no _item_aliases.alias_name '_diffrn_measurement_method' _item_aliases.dictionary cif_core.dic _item_aliases.version 2.0.1 _item_type.code text _item_examples.case 'profile data from theta/2theta (\q/2\q) scans' save_ save__diffrn_measurement.number_of_axes _item_description.description ; The value of _diffrn_measurement.number_of_axes gives the number of axes of the positioner for the goniometer or other sample orientation or positioning device identified by _diffrn_measurement.id The description of the axes should be provided by entries in DIFFRN_MEASUREMENT_AXIS. ; _item.name '_diffrn_measurement.number_of_axes' _item.category_id diffrn_measurement _item.mandatory_code no loop_ _item_range.maximum _item_range.minimum . 1 1 1 _item_type.code int save_ save__diffrn_measurement.specimen_support _item_description.description ; The physical device used to support the crystal during data collection. ; _item.name '_diffrn_measurement.specimen_support' _item.category_id diffrn_measurement _item.mandatory_code no _item_aliases.alias_name '_diffrn_measurement_specimen_support' _item_aliases.dictionary cif_core.dic _item_aliases.version 2.0.1 _item_type.code text loop_ _item_examples.case 'glass capillary' 'quartz capillary' 'fiber' 'metal loop' save_ ########################### # DIFFRN_MEASUREMENT_AXIS # ########################### save_DIFFRN_MEASUREMENT_AXIS _category.description ; Data items in the DIFFRN_MEASUREMENT_AXIS category associate axes with goniometers. ; _category.id diffrn_measurement_axis _category.mandatory_code no loop_ _category_key.name '_diffrn_measurement_axis.id' '_diffrn_measurement_axis.axis_id' loop_ _category_group.id 'inclusive_group' 'diffrn_group' save_ save__diffrn_measurement_axis.id _item_description.description ; This data item is a pointer to _diffrn_measurement.id in the DIFFRN_MEASUREMENT category. ; _item.name '_diffrn_measurement_axis.id' _item.category_id diffrn_measurement_axis _item.mandatory_code yes save_ save__diffrn_measurement_axis.axis_id _item_description.description ; This data item is a pointer to _axis.id in the AXIS category. ; _item.name '_diffrn_measurement_axis.axis_id' _item.category_id diffrn_measurement_axis _item.mandatory_code yes _item_type.code code save_ ################ # DIFFRN_REFLN # ################ save_DIFFRN_REFLN _category.description ; This category redefinition has been added to extend the key of the standard DIFFRN_REFLN category. ; _category.id diffrn_refln _category.mandatory_code no _category_key.name '_diffrn_refln.frame_id' loop_ _category_group.id 'inclusive_group' 'diffrn_group' save_ save__diffrn_refln.frame_id _item_description.description ; This item is a pointer to _diffrn_frame_data.id in the DIFFRN_FRAME_DATA category. ; _item.name '_diffrn_refln.frame_id' _item.category_id diffrn_refln _item.mandatory_code yes _item_type.code code save_ ############### # DIFFRN_SCAN # ############### save_DIFFRN_SCAN _category.description ; Data items in the DIFFRN_SCAN category describe the parameters of one or more scans, relating axis positions to frames. ; _category.id diffrn_scan _category.mandatory_code no _category_key.name '_diffrn_scan.id' loop_ _category_group.id 'inclusive_group' 'diffrn_group' loop_ _category_examples.detail _category_examples.case # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Example 1 - derived from a suggestion by R. M. Sweet. The vector of each axis is not given here, because it is provided in the AXIS category. By making _diffrn_scan_axis.scan_id and _diffrn_scan_axis.axis_id keys of the DIFFRN_SCAN_AXIS category, an arbitrary number of scanning and fixed axes can be specified for a scan. We have specified three rotation axes and one translation axis at non-zero values, with one axis stepping. There is no reason why more axes could not have been specified to step. We have specified range information, but note that it is redundant from the number of frames and the increment, so we could drop the data item _diffrn_scan_axis.angle_range . We have specified both the sweep data and the data for a single frame. ; ; _diffrn_scan.id 1 _diffrn_scan.integration_time 3.0 _diffrn_scan.frame_id_start mad_L2_000 _diffrn_scan.frame_id_end mad_L2_200 _diffrn_scan.frames 201 loop_ _diffrn_scan_axis.scan_id _diffrn_scan_axis.axis_id _diffrn_scan_axis.angle_start _diffrn_scan_axis.angle_range _diffrn_scan_axis.angle_increment _diffrn_scan_axis.displacement_start _diffrn_scan_axis.displacement_range _diffrn_scan_axis.displacement_increment 1 omega 200.0 20.0 0.1 . . . 1 kappa -40.0 0.0 0.0 . . . 1 phi 127.5 0.0 0.0 . . . 1 tranz . . . 2.3 0.0 0.0 _diffrn_scan_frame.scan_id 1 _diffrn_scan_frame.integration_time 3.0 _diffrn_scan_frame.frame_id mad_L2_018 _diffrn_scan_frame.frame_number 18 loop_ _diffrn_scan_frame_axis.frame_id _diffrn_scan_frame_axis.axis_id _diffrn_scan_frame_axis.angle _diffrn_scan_frame_axis.displacement mad_L2_018 omega 201.8 . mad_L2_018 kappa -40.0 . mad_L2_018 phi 127.5 . mad_L2_018 tranz . 2.3 ; # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - save_ save__diffrn_scan.id _item_description.description ; The value of _diffrn_scan.id uniquely identifies each scan. The identifier is used to tie together all the information about the scan. ; loop_ _item.name _item.category_id _item.mandatory_code '_diffrn_scan.id' diffrn_scan yes '_diffrn_scan_axis.scan_id' diffrn_scan_axis yes '_diffrn_scan_frame.scan_id' diffrn_scan_frame yes _item_type.code code loop_ _item_linked.child_name _item_linked.parent_name '_diffrn_scan_axis.scan_id' '_diffrn_scan.id' '_diffrn_scan_frame.scan_id' '_diffrn_scan.id' save_ save__diffrn_scan.integration_time _item_description.description ; The time in seconds to integrate each step of the scan. ; _item.name '_diffrn_scan.integration_time' _item.category_id diffrn_scan _item.mandatory_code yes _item_type.code float _item_units.code 'seconds' loop_ _item_range.maximum _item_range.minimum . 0.0 save_ save__diffrn_scan.frame_id_start _item_description.description ; The value of this data item is the identifier of the first frame in the scan. This item is a pointer to _diffrn_frame_data.id in the DIFFRN_FRAME_DATA category. ; _item.name '_diffrn_scan.frame_id_start' _item.category_id diffrn_scan _item.mandatory_code yes save_ save__diffrn_scan.frame_id_end _item_description.description ; The value of this data item is the identifier of the last frame in the scan. This item is a pointer to _diffrn_frame_data.id in the DIFFRN_FRAME_DATA category. ; _item.name '_diffrn_scan.frame_id_end' _item.category_id diffrn_scan _item.mandatory_code yes save_ save__diffrn_scan.frames _item_description.description ; The value of this data item is the number of frames in the scan. ; _item.name '_diffrn_scan.frames' _item.category_id diffrn_scan _item.mandatory_code no _item_type.code int loop_ _item_range.maximum _item_range.minimum . 1 1 1 save_ #################### # DIFFRN_SCAN_AXIS # #################### save_DIFFRN_SCAN_AXIS _category.description ; Data items in the DIFFRN_SCAN_AXIS category describe the settings of axes for particular scans. Unspecified axes are assumed to be at their zero points. ; _category.id diffrn_scan_axis _category.mandatory_code no loop_ _category_key.name '_diffrn_scan_axis.scan_id' '_diffrn_scan_axis.axis_id' loop_ _category_group.id 'inclusive_group' 'diffrn_group' save_ save__diffrn_scan_axis.scan_id _item_description.description ; The value of this data item is the identifier of the scan for which axis settings are being specified. Multiple axes may be specified for the same value of _diffrn_scan.id This item is a pointer to _diffrn_scan.id in the DIFFRN_SCAN category. ; _item.name '_diffrn_scan_axis.scan_id' _item.category_id diffrn_scan_axis _item.mandatory_code yes save_ save__diffrn_scan_axis.axis_id _item_description.description ; The value of this data item is the identifier of one of the axes for the scan for which settings are being specified. Multiple axes may be specified for the same value of _diffrn_scan.id . This item is a pointer to _axis.id in the AXIS category. ; _item.name '_diffrn_scan_axis.axis_id' _item.category_id diffrn_scan_axis _item.mandatory_code yes save_ save__diffrn_scan_axis.angle_start _item_description.description ; The starting position for the specified axis in degrees. ; _item.name '_diffrn_scan_axis.angle_start' _item.category_id diffrn_scan_axis _item.mandatory_code no _item_default.value 0.0 _item_type.code float _item_units.code 'degrees' save_ save__diffrn_scan_axis.angle_range _item_description.description ; The range from the starting position for the specified axis in degrees. ; _item.name '_diffrn_scan_axis.angle_range' _item.category_id diffrn_scan_axis _item.mandatory_code no _item_default.value 0.0 _item_type.code float _item_units.code 'degrees' save_ save__diffrn_scan_axis.angle_increment _item_description.description ; The increment for each step for the specified axis in degrees. ; _item.name '_diffrn_scan_axis.angle_increment' _item.category_id diffrn_scan_axis _item.mandatory_code no _item_default.value 0.0 _item_type.code float _item_units.code 'degrees' save_ save__diffrn_scan_axis.displacement_start _item_description.description ; The starting position for the specified axis in millimetres. ; _item.name '_diffrn_scan_axis.displacement_start' _item.category_id diffrn_scan_axis _item.mandatory_code no _item_default.value 0.0 _item_type.code float _item_units.code 'millimetres' save_ save__diffrn_scan_axis.displacement_range _item_description.description ; The range from the starting position for the specified axis in millimetres. ; _item.name '_diffrn_scan_axis.displacement_range' _item.category_id diffrn_scan_axis _item.mandatory_code no _item_default.value 0.0 _item_type.code float _item_units.code 'millimetres' save_ save__diffrn_scan_axis.displacement_increment _item_description.description ; The increment for each step for the specified axis in millimetres. ; _item.name '_diffrn_scan_axis.displacement_increment' _item.category_id diffrn_scan_axis _item.mandatory_code no _item_default.value 0.0 _item_type.code float _item_units.code 'millimetres' save_ ##################### # DIFFRN_SCAN_FRAME # ##################### save_DIFFRN_SCAN_FRAME _category.description ; Data items in the DIFFRN_SCAN_FRAME category describe the settings of axes for particular frames. Unspecified axes are assumed to be at their zero points. ; _category.id diffrn_scan_frame _category.mandatory_code no loop_ _category_key.name '_diffrn_scan_frame.scan_id' '_diffrn_scan_frame.frame_id' loop_ _category_group.id 'inclusive_group' 'diffrn_group' save_ save__diffrn_scan_frame.frame_id _item_description.description ; The value of this data item is the identifier of the frame being examined. This item is a pointer to _diffrn_frame_data.id in the DIFFRN_FRAME_DATA category. ; _item.name '_diffrn_scan_frame.frame_id' _item.category_id diffrn_scan_frame _item.mandatory_code yes save_ save__diffrn_scan_frame.frame_number _item_description.description ; The value of this data item is the number of the frame within the scan, starting with 1. It is not necessarily the same as the value of _diffrn_scan_frame.frame_id, but may be. ; _item.name '_diffrn_scan_frame.frame_number' _item.category_id diffrn_scan_frame _item.mandatory_code no _item_type.code int loop_ _item_range.maximum _item_range.minimum . 0 0 0 save_ save__diffrn_scan_frame.integration_time _item_description.description ; The time in seconds to integrate this step of the scan. ; _item.name '_diffrn_scan_frame.integration_time' _item.category_id diffrn_scan_frame _item.mandatory_code yes _item_type.code float _item_units.code 'seconds' loop_ _item_range.maximum _item_range.minimum . 0.0 save_ save__diffrn_scan_frame.scan_id _item_description.description ; The value of _diffrn_scan_frame.scan_id identifies the scan containing this frame. This item is a pointer to _diffrn_scan.id in the DIFFRN_SCAN category. ; loop_ _item.name '_diffrn_scan_frame.scan_id' _item.category_id diffrn_scan_frame _item.mandatory_code yes save_ ########################## # DIFFRN_SCAN_FRAME_AXIS # ########################## save_DIFFRN_SCAN_FRAME_AXIS _category.description ; Data items in the DIFFRN_SCAN_FRAME_AXIS category describe the settings of axes for particular frames. Unspecified axes are assumed to be at their zero points. ; _category.id diffrn_scan_frame_axis _category.mandatory_code no loop_ _category_key.name '_diffrn_scan_frame_axis.frame_id' '_diffrn_scan_frame_axis.axis_id' loop_ _category_group.id 'inclusive_group' 'diffrn_group' save_ save__diffrn_scan_frame_axis.axis_id _item_description.description ; The value of this data item is the identifier of one of the axes for the frame for which settings are being specified. Multiple axes may be specified for the same value of _diffrn_scan_frame.frame_id This item is a pointer to _axis.id in the AXIS category. ; _item.name '_diffrn_scan_frame_axis.axis_id' _item.category_id diffrn_scan_frame_axis _item.mandatory_code yes save_ save__diffrn_scan_frame_axis.angle _item_description.description ; The setting of the specified axis in degrees for this frame. ; _item.name '_diffrn_scan_frame_axis.angle' _item.category_id diffrn_scan_frame_axis _item.mandatory_code no _item_default.value 0.0 _item_type.code float _item_units.code 'degrees' save_ save__diffrn_scan_frame_axis.displacement _item_description.description ; The setting of the specified axis in millimetres for this frame ; _item.name '_diffrn_scan_frame_axis.displacement' _item.category_id diffrn_scan_frame_axis _item.mandatory_code no _item_default.value 0.0 _item_type.code float _item_units.code 'millimetres' save_ save__diffrn_scan_frame_axis.frame_id _item_description.description ; The value of this data item is the identifier of the frame for which axis settings are being specified. Multiple axes may be specified for the same value of _diffrn_scan_frame.frame_id . This item is a pointer to _diffrn_frame_data.id in the DIFFRN_FRAME_DATA category. ; _item.name '_diffrn_scan_frame_axis.frame_id' _item.category_id diffrn_scan_frame_axis _item.mandatory_code yes save_ #################### ## ITEM_TYPE_LIST ## #################### # # # The regular expressions defined here are not compliant # with the POSIX 1003.2 standard as they include the # '\n' and '\t' special characters. These regular expressions # have been tested using version 0.12 of Richard Stallman's # GNU regular expression library in POSIX mode. # In order to allow presentation of a regular expression # in a text field concatenate any line ending in a backslash # with the following line, after discarding the backslash. # # A formal definition of the '\n' and '\t' special characters # is most properly done in the DDL, but for completeness, please # note that '\n' is the line termination character ('newline') # and '\t' is the horizontal tab character. There is a formal # ambiguity in the use of '\n' for line termination, in that # the intention is that the equivalent machine/OS-dependent line # termination character sequence should be accepted as a match, e.g. # # '\r' (control-M) under MacOS # '\n' (control-J) under Unix # '\r\n' (control-M control-J) under DOS and MS Windows # loop_ _item_type_list.code _item_type_list.primitive_code _item_type_list.construct _item_type_list.detail code char '[_,.;:"&<>/\{}'`~!@#$%A-Za-z0-9*|+-]*' ; code item types/single words ... ; ucode uchar '[_,.;:"&<>/\{}'`~!@#$%A-Za-z0-9*|+-]*' ; code item types/single words (case insensitive) ; line char '[][ \t_(),.;:"&<>/\{}'`~!@#$%A-Za-z0-9*|+-]*' ; code item types / multi-word items ... ; uline uchar '[][ \t_(),.;:"&<>/\{}'`~!@#$%A-Za-z0-9*|+-]*' ; code item types / multi-word items (case insensitive) ; text char '[][ \n\t()_,.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*' ; text item types / multi-line text ... ; binary char ;\n--CIF-BINARY-FORMAT-SECTION--\n\ [][ \n\t()_,.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*}\ \n--CIF-BINARY-FORMAT-SECTION---- ; ; binary items are presented as MIME-like ascii-encoded sections in an imgCIF. In a CBF, raw octet streams are used to convey the same information. ; int numb '-?[0-9]+' ; int item types are the subset of numbers that are the negative or positive integers. ; float numb '-?(([0-9]+)|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?' ; float item types are the subset of numbers that are the floating numbers. ; any char '.*' ; A catch all for items that may take any form... ; ##################### ## ITEM_UNITS_LIST ## ##################### loop_ _item_units_list.code _item_units_list.detail # 'metres' 'metres' 'centimetres' 'centimetres (metres * 10^( -2))' 'millimetres' 'millimetres (metres * 10^( -3))' 'nanometres' 'nanometres (metres * 10^( -9))' 'angstroms' 'angstroms (metres * 10^(-10))' 'picometres' 'picometres (metres * 10^(-12))' 'femtometres' 'femtometres (metres * 10^(-15))' # 'reciprocal_metres' 'reciprocal metres (metres * 10^-1)' 'reciprocal_centimetres' 'reciprocal centimetres (metres * 10^( -2)^-1)' 'reciprocal_millimetres' 'reciprocal millimetres (metres * 10^( -3)^-1)' 'reciprocal_nanometres' 'reciprocal nanometres (metres * 10^( -9)^-1)' 'reciprocal_angstroms' 'reciprocal angstroms (metres * 10^(-10)^-1)' 'reciprocal_picometres' 'reciprocal picometres (metres * 10^(-12)^-1)' # 'nanometres_squared' 'nanometres squared (metres * 10^( -9))^2' 'angstroms_squared' 'angstroms squared (metres * 10^(-10))^2' '8pi2_angstroms_squared' '8pi^2 * angstroms squared (metres * 10^(-10))^2' 'picometres_squared' 'picometres squared (metres * 10^(-12))^2' # 'nanometres_cubed' 'nanometres cubed (metres * 10^( -9))^3' 'angstroms_cubed' 'angstroms cubed (metres * 10^(-10))^3' 'picometres_cubed' 'picometres cubed (metres * 10^(-12))^3' # 'kilopascals' 'kilopascals' 'gigapascals' 'gigapascals' # 'hours' 'hours' 'minutes' 'minutes' 'seconds' 'seconds' 'microseconds' 'microseconds' # 'degrees' 'degrees (of arc)' # 'degrees_per_minute' 'degrees (of arc) per minute' # 'celsius' 'degrees (of temperature) Celsius' 'kelvins' 'degrees (of temperature) Kelvin' # 'electrons' 'electrons' # 'electrons_squared' 'electrons squared' # 'electrons_per_nanometres_cubed' ; electrons per nanometres cubed (metres * 10^( -9))^3 ; 'electrons_per_angstroms_cubed' ; electrons per angstroms cubed (metres * 10^(-10))^3 ; 'electrons_per_picometres_cubed' ; electrons per picometres cubed (metres * 10^(-12))^3 ; 'kilowatts' 'kilowatts' 'milliamperes' 'milliamperes' 'kilovolts' 'kilovolts' # 'arbitrary' ; arbitrary system of units. ; # loop_ _item_units_conversion.from_code _item_units_conversion.to_code _item_units_conversion.operator _item_units_conversion.factor ### 'metres' 'centimetres' '*' 1.0E+02 'metres' 'millimetres' '*' 1.0E+03 'metres' 'nanometres' '*' 1.0E+09 'metres' 'angstroms' '*' 1.0E+10 'metres' 'picometres' '*' 1.0E+12 'metres' 'femtometres' '*' 1.0E+15 # 'centimetres' 'metres' '*' 1.0E-02 'centimetres' 'millimetres' '*' 1.0E+01 'centimetres' 'nanometres' '*' 1.0E+07 'centimetres' 'angstroms' '*' 1.0E+08 'centimetres' 'picometres' '*' 1.0E+10 'centimetres' 'femtometres' '*' 1.0E+13 # 'millimetres' 'metres' '*' 1.0E-03 'millimetres' 'centimetres' '*' 1.0E-01 'millimetres' 'nanometres' '*' 1.0E+06 'millimetres' 'angstroms' '*' 1.0E+07 'millimetres' 'picometres' '*' 1.0E+09 'millimetres' 'femtometres' '*' 1.0E+12 # 'nanometres' 'metres' '*' 1.0E-09 'nanometres' 'centimetres' '*' 1.0E-07 'nanometres' 'millimetres' '*' 1.0E-06 'nanometres' 'angstroms' '*' 1.0E+01 'nanometres' 'picometres' '*' 1.0E+03 'nanometres' 'femtometres' '*' 1.0E+06 # 'angstroms' 'metres' '*' 1.0E-10 'angstroms' 'centimetres' '*' 1.0E-08 'angstroms' 'millimetres' '*' 1.0E-07 'angstroms' 'nanometres' '*' 1.0E-01 'angstroms' 'picometres' '*' 1.0E+02 'angstroms' 'femtometres' '*' 1.0E+05 # 'picometres' 'metres' '*' 1.0E-12 'picometres' 'centimetres' '*' 1.0E-10 'picometres' 'millimetres' '*' 1.0E-09 'picometres' 'nanometres' '*' 1.0E-03 'picometres' 'angstroms' '*' 1.0E-02 'picometres' 'femtometres' '*' 1.0E+03 # 'femtometres' 'metres' '*' 1.0E-15 'femtometres' 'centimetres' '*' 1.0E-13 'femtometres' 'millimetres' '*' 1.0E-12 'femtometres' 'nanometres' '*' 1.0E-06 'femtometres' 'angstroms' '*' 1.0E-05 'femtometres' 'picometres' '*' 1.0E-03 ### 'reciprocal_centimetres' 'reciprocal_metres' '*' 1.0E+02 'reciprocal_centimetres' 'reciprocal_millimetres' '*' 1.0E-01 'reciprocal_centimetres' 'reciprocal_nanometres' '*' 1.0E-07 'reciprocal_centimetres' 'reciprocal_angstroms' '*' 1.0E-08 'reciprocal_centimetres' 'reciprocal_picometres' '*' 1.0E-10 # 'reciprocal_millimetres' 'reciprocal_metres' '*' 1.0E+03 'reciprocal_millimetres' 'reciprocal_centimetres' '*' 1.0E+01 'reciprocal_millimetres' 'reciprocal_nanometres' '*' 1.0E-06 'reciprocal_millimetres' 'reciprocal_angstroms' '*' 1.0E-07 'reciprocal_millimetres' 'reciprocal_picometres' '*' 1.0E-09 # 'reciprocal_nanometres' 'reciprocal_metres' '*' 1.0E+09 'reciprocal_nanometres' 'reciprocal_centimetres' '*' 1.0E+07 'reciprocal_nanometres' 'reciprocal_millimetres' '*' 1.0E+06 'reciprocal_nanometres' 'reciprocal_angstroms' '*' 1.0E-01 'reciprocal_nanometres' 'reciprocal_picometres' '*' 1.0E-03 # 'reciprocal_angstroms' 'reciprocal_metres' '*' 1.0E+10 'reciprocal_angstroms' 'reciprocal_centimetres' '*' 1.0E+08 'reciprocal_angstroms' 'reciprocal_millimetres' '*' 1.0E+07 'reciprocal_angstroms' 'reciprocal_nanometres' '*' 1.0E+01 'reciprocal_angstroms' 'reciprocal_picometres' '*' 1.0E-02 # 'reciprocal_picometres' 'reciprocal_metres' '*' 1.0E+12 'reciprocal_picometres' 'reciprocal_centimetres' '*' 1.0E+10 'reciprocal_picometres' 'reciprocal_millimetres' '*' 1.0E+09 'reciprocal_picometres' 'reciprocal_nanometres' '*' 1.0E+03 'reciprocal_picometres' 'reciprocal_angstroms' '*' 1.0E+01 ### 'nanometres_squared' 'angstroms_squared' '*' 1.0E+02 'nanometres_squared' 'picometres_squared' '*' 1.0E+06 # 'angstroms_squared' 'nanometres_squared' '*' 1.0E-02 'angstroms_squared' 'picometres_squared' '*' 1.0E+04 'angstroms_squared' '8pi2_angstroms_squared' '*' 78.9568 # 'picometres_squared' 'nanometres_squared' '*' 1.0E-06 'picometres_squared' 'angstroms_squared' '*' 1.0E-04 ### 'nanometres_cubed' 'angstroms_cubed' '*' 1.0E+03 'nanometres_cubed' 'picometres_cubed' '*' 1.0E+09 # 'angstroms_cubed' 'nanometres_cubed' '*' 1.0E-03 'angstroms_cubed' 'picometres_cubed' '*' 1.0E+06 # 'picometres_cubed' 'nanometres_cubed' '*' 1.0E-09 'picometres_cubed' 'angstroms_cubed' '*' 1.0E-06 ### 'kilopascals' 'gigapascals' '*' 1.0E-06 'gigapascals' 'kilopascals' '*' 1.0E+06 ### 'hours' 'minutes' '*' 6.0E+01 'hours' 'seconds' '*' 3.6E+03 'hours' 'microseconds' '*' 3.6E+09 # 'minutes' 'hours' '/' 6.0E+01 'minutes' 'seconds' '*' 6.0E+01 'minutes' 'microseconds' '*' 6.0E+07 # 'seconds' 'hours' '/' 3.6E+03 'seconds' 'minutes' '/' 6.0E+01 'seconds' 'microseconds' '*' 1.0E+06 # 'microseconds' 'hours' '/' 3.6E+09 'microseconds' 'minutes' '/' 6.0E+07 'microseconds' 'seconds' '/' 1.0E+06 ### 'celsius' 'kelvins' '-' 273.0 'kelvins' 'celsius' '+' 273.0 ### 'electrons_per_nanometres_cubed' 'electrons_per_angstroms_cubed' '*' 1.0E-03 'electrons_per_nanometres_cubed' 'electrons_per_picometres_cubed' '*' 1.0E-09 # 'electrons_per_angstroms_cubed' 'electrons_per_nanometres_cubed' '*' 1.0E+03 'electrons_per_angstroms_cubed' 'electrons_per_picometres_cubed' '*' 1.0E-06 # 'electrons_per_picometres_cubed' 'electrons_per_nanometres_cubed' '*' 1.0E+09 'electrons_per_picometres_cubed' 'electrons_per_angstroms_cubed' '*' 1.0E+06 ### ######################## ## DICTIONARY_HISTORY ## ######################## loop_ _dictionary_history.version _dictionary_history.update _dictionary_history.revision 1.0 2000-12-21 ; Release version - few typos and tidying up (BM & HJB) + Move ITEM_TYPE_LIST, ITEM_UNITS_LIST and DICTIONARY_HISTORY to end of dictionary. + Alphabetize dictionary. ; 0.7.1 2000-09-29 ; Cleanup fixes (JW) + Correct spelling of diffrn_measurement_axis in _axis.id + Correct ordering of uses of _item.mandatory_code and _item_default.value ; 0.7.0 2000-09-09 ; Respond to comments by I. David Brown (HJB) + Added further comments on '\n' and '\t' + Updated ITEM_UNITS_LIST by taking section from mmCIF dictionary and adding metres. Changed all spelling 'meter' to 'metre' throughout. + Added missing enumerations to _array_structure.compression_type and made 'none' the default. + Removed parent-child relationship between _array_structure_list.index and _array_structure_list.precedence . + Improve alphabetization. + Fix _array_intensities_gain.esd related function. + Improved comments in AXIS. + Fixed DIFFRN_FRAME_DATA example. + Removed erroneous DIFFRN_MEASUREMENT example. + Added _diffrn_measurement_axis.id to the category key. ; 0.6.0 1999-01-14 ; Remove redundant information for ENC_NONE data (HJB) + After the D5 remove binary section identifier, size and compression type. + Add Control-L to header. ; 0.5.1 1999-01-03 ; Cleanup of typos and syntax errors (HJB) + Cleanup example details for DIFFRN_SCAN category. + Add missing quote marks for _diffrn_scan.id definition. ; 0.5 1999-01-01 ; Modifications for axis definitions and reduction of binary header (HJB) + Restored _diffrn_detector.diffrn_id to DIFFRN_DETECTOR KEY. + Added AXIS category. + Brought complete DIFFRN_DETECTOR and DIFFRN_MEASUREMENT categories in from cif_mm.dic for clarity. + changed _array_structure.encoding_type from type code to uline and added X-Binary-Element-Type to MIME header. + added detector beam center _diffrn_detector_element.center[1] and _diffrn_detector_element.center[2] + corrected item name of _diffrn_refln.frame_id + replace reference to _array_intensities.undefined by _array_intensities.undefined_value + replace references to _array_intensity.scaling with _array_intensities.scaling + added DIFFRN_SCAN... categories ; 0.4 1998-08-11 ; Modifications to the 0.3 imgCIF draft (HJB) + Reflowed comment lines over 80 characters and corrected typos. + Updated examples and descriptions of MIME encoded data. + Change name to cbfext98.dic. ; 0.3 1998-07-04 ; Modifications for imgCIF (HJB) + Added binary type, which is a text field containing a variant on MIME encoded data. + Changed type of _array_data.data to binary and specified internal structure of raw binary data. + Added _array_data.binary_id, and made _diffrn_frame_data.binary_id and _array_intensities.binary_id into pointers to this item. ; 0.2 1997-12-02 ; Modifications to the CBF draft (JW): + Added category hierarchy for describing frame data developed from discussions at the BNL imgCIF Workshop Oct 1997. The following changes were made in implementing the workshop draft. Category DIFFRN_ARRAY_DATA was renamed to DIFFRN_FRAME_DATA. Category DIFFRN_FRAME_TYPE was renamed to DIFFRN_DETECTOR_ELEMENT. The parent item for _diffrn_frame_data.array_id was changed from array_structure_list.array_id to array_structure.id. Item _diffrn_detector.array_id was deleted. + Added data item _diffrn_frame_data.binary_id to identify data groups within a binary section. The formal identification of the binary section is still fuzzy. ; 0.1 1997-01-24 ; First draft of this dictionary in DDL 2.1 compliant format by John Westbrook (JW). This version was adapted from the Crystallographic Binary File (CBF) Format Draft Proposal provided by Andy Hammersley (AH). Modifications to the CBF draft (JW): + In this version the array description has been cast in the categories ARRAY_STRUCTURE and ARRAY_STRUCTURE_LIST. These categories have been generalized to describe array data of arbitrary dimension. + Array data in this description are contained in the category ARRAY_DATA. This departs from the CBF notion of data existing in some special comment. In this description, data is handled as an ordinary data item encapsulated in a character data type. Although handling binary data this manner deviates from CIF conventions, it does not violate any DDL 2.1 rules. DDL 2.1 regular expressions can be used to define the binary representation which will permit some level of data validation. In this version, the placeholder type code "any" has been used. This translates to a regular expression which will match any pattern. It should be noted that DDL 2.1 already supports array data objects although these have not been used in the current mmCIF dictionary. It may be possible to use the DDL 2.1 ITEM_STRUCTURE and ITEM_STRUCTURE_LIST categories to provide the information that is carried in by the ARRAY_STRUCTURE and ARRAY_STRUCTURE_LIST. By moving the array structure to the DDL level it would be possible to define an array type as well as a regular expression defining the data format. + Multiple array sections can be properly handled within a single datablock. ; #-eof-eof-eof-eof-eof-eof-eof-eof-eof-eof-eof-eof-eof-eof-eof-eof-eof-eof-eof