Function Entry: VLAX-CURVE-GETPARAMATPOINT

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Function Entry: VLAX-CURVE-GETPARAMATPOINT

Name

vlax-curve-getParamAtPoint

Class

Visual LISP curve function

Syntax

(vlax-curve-getParamAtPoint curve point)

Arguments and Values

curve — VLA-object designating a curve.
point — 3D point list in WCS on the curve.

Description

Returns the parameter of the curve at the point.

Return Values

real or nil

Side Effects

None.

Availability

AutoCAD 2026: documented (per Autodesk reference page).
BricsCAD V26: presumed compatible (no contradicting page found).
Status: AutoCAD documented; BricsCAD presumed-both pending Phase 4 verification.

Source Notes

[vlax-curve-getParamAtPoint (AutoLISP/ActiveX)](https://help.autodesk.com/cloudhelp/2024/JPN/AutoCAD-LT-AutoLISP-Reference/files/GUID-1827742B-21DE-4454-90A0-19551DE79B5A.htm)

Compatibility

Available only on Windows; not available on macOS or Web.