Data Item _array_structure_list_axis.fract_displacement_increment
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General 
- Item name
- _array_structure_list_axis.fract_displacement_increment
- Category name
- array_structure_list_axis
- Attribute name
- fract_displacement_increment
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
Item Description
The pixel-centre-to-pixel-centre increment for the displacement
setting of the specified axis as a decimal fraction of the
axis unit vector.
Data Type 
- Data type code
- float
- Data type detail
- float item types are the subset of numbers that are the floating point numbers.
- Primitive data type code
- numb
- Regular expression
- -?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?
- Default value
- 0.0
- Units
- millimetres