autocad_entity: autocad_face
Features with autocad_entity set to autocad_face are stored as AutoCAD face entities. Additional attributes are used to define the visibility of the edges of the Face entity. Faces will be represented as surfaces with autocad_entity set to autocad_surface.
See Surfaces for details.
Face surfaces are one-sided: they are only visible from one view direction. A face is visible when its normal points toward the observer. If the vertices of the outer boundary of the face are observed to be in anti-clockwise order, then the normal of the face points toward the observer, implying that the face is visible.
|
Attribute Name |
Contents |
|---|---|
|
autocad_edge_1 |
The visibility of the first edge of the Face. Range:
Default: visible |
|
autocad_edge_2 |
The visibility of the second edge of the Face. Range:
Default: visible |
|
autocad_edge_3 |
The visibility of the third edge of the Face. Range:
Default: visible |
|
autocad_edge_4 |
The visibility of the final edge of the Face. Range:
Default: visible |