Topic: getting the point within the line...

[rainier]

what function to get the point (xyz) with the line???

like that --->  ____._______

ohh! i mean is i have a distance on the point but i dont have a location.. getting the (XYZ)
any idea guys?? please help.. thanks

[FengK]

if i understood you correctly, look up function polar.

from ref:

(polar pt ang dist)
Arguments

pt

A 2D or 3D point.

ang

An angle expressed in radians relative to the world X axis. Angles increase in the counterclockwise direction, independent of the current construction plane.

dist

Distance from the specified pt.

Return Values

A 2D or 3D point, depending on the type of point specified by pt.

[CAB]

Polar requires the start point, angle and distance while vlax-curve-getPointAtDist requires the object and distance.
 

Code: [Select]

(setq p2 (polar p1 angle dist))
 
(setq p2 (vlax-curve-getPointAtDist ent dist))
 Note that the vlax-curve-getPointAtDist uses the start point of the object when created and may not be the point
 you think it is.

[CADaver]

hmmm... ???x2

Anyway, as Alan points out vlax-curve-getPointAtDist uses the start point so I still use the old CAL function.