Returns the parameter of a curve at the specified distance from the beginning of the curve
(vlax-curve-getParamAtDist curve-obj dist)
Arguments
The VLA-object to be measured.
A number specifying the distance from the beginning of the curve.
Return Values
A real number representing a parameter, if successful; otherwise nil.
Examples
(vlax-curve-getParamAtDist splineObj 1.0) 0.685049