The 3D ACIS® Modeler (ACIS) is Spatial’s prominent 3D solid modeling engine. 3D InterOp is a CAD data translation framework (Interoperability)
Option:Blend mix convexity
From DocR19
Contents |
Action
Controls how blending handles mixed convexity edges.
Name String
blend_mix_convexity
Scheme
| Type | Values | Default |
|---|---|---|
| boolean | #f, #t | #t |
C++
| Type | Values | Default |
|---|---|---|
| logical | FALSE, TRUE | TRUE |
Description
The blend_mix_convexity option controls the behavior of blending when edges (to be blended) of different convexity meet at a common vertex. When the option is set to TRUE, ACIS will attempt to blend this configuration by adding a vertex blend attribute to the common vertex and then proceeding normally. When the option is set to FALSE (and there is not a blend attribute on the common vertex), ACIS will output an error message indicating that it cannot blend this configuration (this is the default behavior prior to version 6.1).
The default value of the option is TRUE. Set 1 below is an example of mixed convexity edges sharing a common vertex. The edges to be blended are in red and the vertex is in yellow. The successful blend (with the blend_mix_convexity option set to TRUE) is shown in the next set of pictures.
Example
; blend_mix_convexity ; Use old blending behavior ; do not allow mixed (option:set "blend_mix_convexity" #f) ;; #t
 Blend mix convexity-set 1 |  Blend mix convexity-set 1 |
 Blend mix convexity-set 2 |  Blend mix convexity-set 2 |
