Geometry Object

CDXML Name:geometry
CDX Constant Name:kCDXObj_Geometry
CDX Constant Value:0x8021
Contained by objects:kCDXObj_Page
First written/read in:ChemDraw 8.0


A geometrical relationship between one or more objects. The type of the relationship is specified by the kCDXProp_GeometricFeature property, and the objects that specify the geometry are listed within the kCDXProp_BasisObjects property. It is acceptable (and quite common) for one Geometry object to be defined in terms of other Geometry objects, but circular dependencies are forbidden.

If present, an Object Tag with the name "deviation" will contain a graphic representation of the RMS deviation for Geometries with a kCDXProp_GeometricFeature equal to kCDXGeometricFeature_LineFromPoints, kCDXGeometricFeature_PlaneFromPoints, or kCDXGeometricFeature_PlaneFromPointLine.

Value Name CDXML Name
0x8011 kCDXObj_ObjectTag objecttag
Arbitrarily named property, one or more of which can be attached to any ChemDraw object.

Value Name CDXML Name Type
n/a n/a id UINT16
A unique identifier for an object, used when other objects refer to it.
0x0008 kCDXProp_Name Name CDXString
Required for objecttags. Name of an object.
0x0301 kCDXProp_ForegroundColor color UINT16
The foreground color of an object represented as the two-based index into the object's color table.
0x0805 kCDXProp_BondLength BondLength CDXCoordinate
The default bond length.
0x0807 kCDXProp_LineWidth LineWidth CDXCoordinate
The default line width.
0x081A kCDXProp_LabelStyleFont LabelFont INT16
The default font family for atom labels.
0x081C kCDXProp_LabelStyleSize LabelSize INT16
The default font size for atom labels.
0x081E kCDXProp_LabelStyleFace LabelFace INT16
The default font style for atom labels.
0x0820 kCDXProp_LabelStyleColor LabelColor INT16
The default color for atom labels
0x0B80 kCDXProp_GeometricFeature GeometricFeature INT8
The type of the geometrical feature (point, line, plane, etc.). This is an enumerated property.
0x0B81 kCDXProp_RelationValue RelationValue FLOAT64
The numeric relationship (if any) among the basis objects used to define this object.
0x0B82 kCDXProp_BasisObjects BasisObjects CDXObjectIDArray
Required for geometries and constraints. An ordered list of objects used to define this object.
0x0B88 kCDXProp_PointIsDirected PointIsDirected CDXBooleanImplied
For a point based on a normal, signifies whether it is in a specific direction relative to the reference point.


CDX Documentation index