SchemeExt:Entity:detect-depression
From DocR23
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Contents |
Action
Detects a depression on a model based on an input seed face.
Filename
scm/scmext/lop/lop_scm.cpp
APIs
Syntax
(entity:detect-depression seed-face [detect-feature-opts])
Argument Types
| Argument | Scheme Data Type |
|---|---|
| seed-face | face |
| detect-feature-opts | detect-feature-options |
Returns
(face ...)
Description
This Scheme extension detects a depression feature on the model. Given a seed face belonging to the depression feature, the collection of contiguous faces constituting the entire feature is returned. Specific examples of depression feature are: cut, pocket, slot, and hole.
Limitations
- Mixed convexity edges are not handled well.
Arguments
- seed-face specifies the seed face on the depression.
- detect-feature-opts specifies the options object to control the depression detection parameters.
Example 1
(part:clear) ; Create a model with depression. (define block1 (solid:block (position -20 -20 -20) (position 20 25 25))) (define block2 (solid:block (position -5 -20 -30) (position 30 15 35))) (bool:subtract block2 block1) ;Pick a seed face from the depression. (ray:queue 89.8179 -78.9733 -22.3511 -0.74136 0.543114 0.394223 1) (define seed_face (pick-face)) (entity:set-color seed_face GREEN) ;Collect all depression faces (define depression_faces (entity:detect-depression seed_face )) (entity:set-color depression_faces YELLOW)
 Seed Face in Green |
 Detected Depression in Yellow |
Example 2
(part:clear) (define cyl (solid:cylinder (position 0 0 0)(position 0 0 7) 25)) ;;inner cylinder (define cyl2 (solid:cylinder (position 0 0 0)(position 0 0 2) 15)) (define cyl3 (solid:cylinder (position 0 0 0)(position 0 0 2) 10)) (define cyl2 (bool:subtract cyl2 cyl3)) (define cyl (bool:subtract cyl cyl2)) (define cyl4 (solid:cylinder (position 0 0 1)(position 0 0 6) 25)) (define cyl5 (solid:cylinder (position 0 0 1)(position 0 0 6) 23)) (define cyl4 (bool:subtract cyl4 cyl5)) (define cyl (bool:subtract cyl cyl4)) (define cyl2 (solid:cylinder (position 0 0 7)(position 0 0 5) 15)) (define cyl3 (solid:cylinder (position 0 0 7)(position 0 0 5) 10)) (define cyl2 (bool:subtract cyl2 cyl3)) (define cyl (bool:subtract cyl cyl2)) (blend:entities (entity:edges (part:entities)) 0.5 'fix) (ray:queue -11.6357 -9.77088 -10.1514 0.0276099 0.769945 0.637513 0.167772) (define seed_face (pick-face)) (entity:set-color seed_face GREEN) ;Collect all depression faces (define depression_faces (entity:detect-depression seed_face )) (entity:set-color depression_faces YELLOW)
 Seed Face in Green |
 Detected Depression in Yellow |
