distance (AutoLISP)

Returns the 3D distance between two points

Supported Platforms: Windows and Mac OS

Signature

(distance pt1 pt2)

pt1

Type: List

A 2D or 3D point list.

pt2

Type: List

A 2D or 3D point list.

Return Values

Type: Real

The distance. If one or both of the supplied points is a 2D point, then distance ignores the Z coordinates of any 3D points supplied and returns the 2D distance between the points as projected into the current construction plane.

Examples

(distance '(1.0 2.5 3.0) '(7.7 2.5 3.0))
6.7

(distance '(1.0 2.0 0.5) '(3.0 4.0 0.5))
2.82843