Function Entry: VLE-VECTOR-ISCODIRECTIONAL

← Prev | ↑ Chapter | Next → | Index | Symbols

Function Entry: VLE-VECTOR-ISCODIRECTIONAL

Name

vle-vector-iscodirectional

Class

BricsCAD VLE Library Function

Syntax

(vle-vector-iscodirectional 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 codirectional or not.

Return Values

T or NIL

Examples

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

(vle-vector-iscodirectional v1 v2)

NIL

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

(vle-vector-iscodirectional v1 v2)

T

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

[vle-vector-iscodirectional (BricsCAD V26 DevRef)](https://developer.bricsys.com/bricscad/help/en_US/V26/DevRef/source/vle-vector-iscodirectional.htm)
Status: documented (Phase 3 follow-up: body filled from the BricsCAD V26 per-symbol page on 2026-04-26).