entity:extrema

List of:	Scheme Extensions
Subjects:	Analyzing Models, Model Geometry
Contents:	Intersectors

Action:

Finds an extreme position on an entity.

Filename:

intr/intr_scm/rtst_scm.cxx

APIs:

api_entity_extrema

Syntax:

(entity:extrema entity vector1 [vector2] [vector3] [acis-opts])

Arg Types:

entity

entity

vector1

position

vector2

position

vector3

position

acis-opts

acis-options

Returns:

((entity | (entity ...)) . position)

Description:

vector1, vector2 and vector3 are positions in the entity.

The optional argument acis-opts helps enable journaling and versioning options.

Example:

; entity:extrema

; create topology to illustrate command.

(define s1 (solid:block

(position 0 0 0) (position 10 10 5)))

;; s1

(define s2 (solid:block

(position 3 0 5) (position 7 3 8)))

;; s2

(define s3 (solid:block

(position 3 7 5) (position 7 10 2)))

;; s3

(define unite (bool:unite s1 s2))

;; unite

(define subtract (bool:subtract s1 s3))

;; subtract

(define extrema (entity:extrema s1 (gvector 1 1 1)

(gvector 0 0 1) (gvector 1 0 0)))

;; extrema

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