Ellipses

igds_type: igds_ellipse

This geometry type is stored in an IGDS type 15 element.

Ellipse features are point features, and only have a single coordinate. This point serves as the center of the ellipse. Additional attributes specify the rotation, major axis, and minor axis of the ellipse.

The primary ellipse axis is not necessarily the longest axis, but rather the one whose orientation is specified by the rotation value.

Note: The ArcStroker transformer can be used to convert an ellipse to a polygon. This is useful for storing ellipses in systems that do not support them directly.

Attribute Name	Notes	Version Info	Contents
igds_primary_axis			The length of the semi-major axis in ground units. Range: Any real number Default: No default Reprojectable: Yes
igds_secondary_axis			The length of the semi-minor axis in ground units. Range: Any real number Default: No default Reprojectable: Yes
igds_rotation			The rotation of the major axis. The rotation is measured in degrees counterclockwise up from horizontal. Range: -360.0..360.0 Default: 0 Reprojectable: Yes
igds_fill_color			The color used to fill the shape. This will override any solid fill linkage that may be present on the feature. Range: 0..255 Default: No fill
igds_fill_color.red	Reader only		The fill’s red color intensity, as determined by looking up the fill color index in the color table. Range: >0..255
igds_fill_color.green	Reader only		The fill’s green color intensity, as determined by looking up the fill color index in the color table. Range: >0..255
igds_fill_color.blue	Reader only		The fill’s blue color intensity, as determined by looking up the fill color index in the color table. Range: 0..255
igds_fill_angle1		used in V8 only	The angle of the primary hatch lines in a hatch fill. The angle is measured in degrees counterclockwise up from horizontal. Range: -360.0..360.0 Default: 0
igds_fill_angle2		used in V8 only	The angle of the secondary hatch lines in a hatch fill. The angle is measured in degrees counterclockwise up from horizontal. Range: -360.0..360.0 Default: 0
igds_fill_hole_style_id		used in V8 only	The style id of the holes of a filled area element. Default: 0
igds_fill_island_style_id		used in V8 only	The style id of the island areas of holes of a filled area element. Default: 0
igds_fill_offset_x		used in V8 only	The coordinate offset in the x dimension for the hatch or pattern fill of an area element. Range: Any real number Default: 0
igds_fill_offset_y		used in V8 only	The coordinate offset in the y dimension for the hatch fill of an area element. Range: Any real number Default: 0
igds_fill_offset_z		used in V8 only	The coordinate offset in the z dimension for the hatch or pattern fill of an area element. Range: Any real number Default: 0
igds_fill_pattern_color		used in V8 only	The color used to fill the area element. This corresponds to the color of the hatch or pattern fill linkage. Range: 0..2545
igds_fill_pattern_color.red	Reader only	used in V8 only	The pattern_fill’s red color intensity, as determined by looking up the fill color index in the color table. Range: 0..255
igds_fill_pattern_color.green	Reader only	used in V8 only	The pattern_fill’s green color intensity, as determined by looking up the fill color index in the color table. Range: 0..255
igds_fill_pattern_color.blue	Reader only	used in V8 only	The pattern_fill’s blue color intensity, as determined by looking up the fill color index in the color table. Range: 0..255
igds_fill_pattern_type		used in V8 only	The type of pattern fill for an area element. This indicates the presence of a fill pattern on an area element. Currently only hatch fill is supported. Range: hatch Default: hatch
igds_fill_pixel_size		used in V8 only	The size of pixels for the hatch or pattern fill of an area element. Range: Any real number
igds_fill_rotation		used in V8 only	The rotation angle of the hatch or pattern fill within an area element. The rotation is measured in degrees counterclockwise up from horizontal. Range: -360.0..360.0 Default: 0
igds_fill_scale		used in V8 only	The scale of the hatch fill or pattern fill for an area element. Range: Any positive real number
igds_fill_snappable		used in V8 only	This flag indicates if the hatch or pattern fill for an area element is snappable. Range: yes or no Default: yes
igds_fill_spacing1		used in V8 only	The spacing between the primary hatch lines in a hatch fill. It is necessary for this or igds_fill_spacing2 to exist to define a hatch pattern. Range: Any real number
igds_fill_spacing2		used in V8 only	The spacing between the secondary hatch lines in a hatch fill. It is necessary for this or igds_fill_spacing1 to exist to define a hatch pattern. Range: Any real number
igds_fill_style_id		used in V8 only	The line style id of the hatch fill or pattern fill for an area element. Default: 0
igds_fill_tolerance		used in V8 only	The maximum distance between curved element boundaries and line segments in a hatch fill. Range: Any positive real number
igds_fill_weight		used in V8 only	The line weight of the hatch fill or pattern fill for an area element. Default: 0