Construction Reference Circle
Creates a construction reference circle displayed with dashed amber styling. Visible on the canvas for geometric reasoning but not included in DXF exports or toolpath output.
What It Does
The Dashed/Circle operator creates a reference circle that is displayed on the canvas with a dashed amber style. It is used as a construction aid — for visual reference, geometric reasoning, and intersection calculations — without becoming part of the committed drawing.
| Property | Value |
|---|---|
| Display colour | #ffcc00 (amber) |
| Display style | Dashed [6, 3] |
| Supports intersections | Yes |
| Supports references | Yes |
| Included in DXF export | No |
| Included in toolpath | No |
| Committed on Commit Preview | No — automatically removed |
Syntax
| Parameter | Description | Required |
|---|---|---|
Centre / P1 / X,Y | Centre point — by reference or explicit coordinates | ✓ Yes |
R | Radius in millimetres | ✓ Yes |
Construction Line Properties
Dashed circles share the same construction properties as construction lines:
| Property | Before Commit | After Commit |
|---|---|---|
| construction flag | true | — removed — |
| transient flag | true | — removed — |
| stable_id | None | Not assigned |
Worked Examples
FAQ
Can I use a dashed circle as input to intersection operators?
Yes. Dashed circles support intersections and references. You can use them as inputs to Point/Intof, Line/Tanto, and other operators during the Preview session.
What happens to geometry built using a dashed circle as a reference?
The geometry built from the dashed circle (e.g. intersection points, tangent lines) is committed normally. Only the dashed circle itself is discarded on commit. The final geometry is unaffected.
Is this the same as the Construction Line feature?
Yes — Dashed/Circle is the circle equivalent of the Construction Line feature. Both create amber dashed construction geometry that is automatically removed on commit.