VARKON Version 1.15 1997-10-24

inv_arcl - Function

Geometrical function


Description

Returns the parameter value of a position on a line, arc or curve specified by its distance from the start of the entity.

Syntax

inv_arcl(ref, dist)

REF	ref;
FLOAT	dist;

Principal parameters

ref	- Identity of line, arc or curve
dist	- Distance from start of entity

Optional parameters

None.

Return value

A FLOAT value equal to the parameter value of the specified position.

Example

inv_arcl(#5,100)

The parameter value for the position on #5 where the distance to the start of the entity is 100.