Topic: Why don't return 0.579176?

[2e4lite]

As following:

Code: [Select]

(vlax-curve-getParamAtPoint obj '(269.17 53.9658 0.0))return: nil

Code: [Select]

_$ p0
(269.17 53.9658 0.0)
_$ (vlax-curve-getParamAtPoint obj p0)
0.579176     

[Stefan]

The numbers in the list are truncated.
Try

Code: [Select]

(equal p0 '(269.17 53.9658 0.0))
To see the differences, try

Code: [Select]

(mapcar '(lambda (x) (rtos x 2 16)) p0)
(mapcar '(lambda (x) (rtos x 2 16)) '(269.17 53.9658 0.0))


[CAB]

Try this:

Code - Auto/Visual Lisp: [Select]

1. (vlax-curve-getParamAtPoint obj  (vlax-curve-getClosestPointTo obj '(269.17 53.9658 0.0)))

[2e4lite]

Very thanks for your helpful reply!