Function Entry: VLE-VECTOR-ISPARALLEL

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Function Entry: VLE-VECTOR-ISPARALLEL

Name

vle-vector-isparallel

Class

BricsCAD VLE Library Function

Syntax

(vle-vector-isparallel vec1 vec2)

Arguments and Values

  • vec1 a 2d or 3d vector list
  • vec2 a 2d or
  • 3d vector list

Description

This function returns whether the vectors vec1 and vec2 are parallel or not.

Return Values

T or NIL

Examples

(setq v1 '(2 0 0) v2'(-2 0
0))

(vle-vector-isparallel v1 v2)

T

(setq v1 '(2 0 0) v2'(3 0 0))

(vle-vector-isparallel v1 v2)

T

(setq v1 '(2 0 0) v2'(3 0 1))

(vle-vector-isparallel v1 v2)

NIL

Notes

input vectors must not be unit-length (non-normalised vectors are allowed)

Availability

  • AutoCAD 2026: not documented.
  • BricsCAD V26: documented.
  • Status: BricsCAD-only.

Source Notes