Function Entry: ACET-GEOM-IS-ARC

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Function Entry: ACET-GEOM-IS-ARC

Name

acet-geom-is-arc

Class

BricsCAD ExpressTools API Function

Syntax

(acet-geom-is-arc p1 p2 p3 p4 fuz)

Arguments and Values

Arguments are described in the vendor page; see Source Notes.

Description

Verifies, whether given 4 points p1 p2 p3 p4 define a valid arc/circle; fuz is a numerical tolerance - if NIL, tolerance 0.0 is used. Returns T if the 4 points belong to an arc/circle, NIL otherwise

Return Values

Vendor-defined; see Source Notes.

Availability

AutoCAD 2026: not documented.
BricsCAD V26: documented.
Status: BricsCAD-only.

Source Notes

[acet-geom-is-arc (BricsCAD V26 DevRef)](https://developer.bricsys.com/bricscad/help/en_US/V26/DevRef/source/acetgeomisarc.htm)
Status: documented (Phase 3 follow-up: body filled from the BricsCAD V26 per-symbol page on 2026-04-26).