SchemeExt:Face:spherical?

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Contents 1 Action 2 Filename 3 APIs 4 Syntax 5 Argument Types 6 Returns 7 Description 8 Arguments 9 Example

Action

Determines if a Scheme object is a spherical face.

Filename

scm/scmext/kern/qfac_scm.cpp

APIs

None

Syntax

(face:spherical? object)

Argument Types

Argument	Scheme Data Type
object	scheme-object

Returns

boolean

Description

This extension returns #t if the specified object is a spherical face; that is, if the object is a face whose underlying geometry is a sphere.

Arguments

• object specifies the scheme-object that has to be queried for a spherical face.

Example

; face:spherical?
; Create a solid sphere.
(define sphere1 (solid:sphere (position 0 0 0) 20))
;; sphere1
; Determine if the solid sphere is a spherical face.
(face:spherical? sphere1)
;; #f
; Find the faces of the solid sphere.
(define faces1 (entity:faces sphere1))
;; faces1
; Determine if the face is actually a spherical face.
(face:spherical? (car faces1))
;; #t