Circle
|
<< Click to Display Table of Contents >> Navigation: Reference Section > Shape Library > Primitives > Circle |
The Circle shape is a single circle of a given diameter, centred on the insert point. It is meant for marking and layout – for example a bolt circle, a hole position or a reference ring marked on the plate – and with Marking on (the default) it is sent to the marking tool with no kerf. This is what sets it apart from Disk/Hole, which is always cut. With Marking off the Circle is an ordinary cut circle. Its aliases are Open Circle and Marking Circle; searching the shapes library for either name also finds it.
It appears in the shapes library under Basic Shapes and Primitives.
Insert point and direction
The centre of the circle is the insert point (Base X, Base Y). The circle is one closed path made of a single full-circle arc, starting at the 3 o'clock point (on +X from the centre) and running anticlockwise.
The Diameter dimension is drawn across the circle at 45°. Clicking it edits the Diameter property.
Properties
Property |
Description |
Default |
Diameter |
Diameter of the circle (mm or inch). Must be greater than zero. |
100 mm (4 in when working in inches) |
Marking |
On: the circle is hinted for the marking tool with no kerf offset, so it is marked on the line rather than cut. Off: the circle carries no tool hint and is processed as an ordinary cut path, like any other profile. |
On |
With Marking on, the marking hint is set on the path itself as well as on the arc inside it, so processing treats the whole circle as a marking operation.
When the shape cannot be built
If Diameter is 0 or less the shape is not built, a broken-shape marker is shown at the insert point, and the property page shows Warning: Cannot build shape from these parameters. The Diameter dimension is not updated while the shape cannot be built, so it keeps the last diameter that built. Enter a Diameter greater than zero to clear the error.
Every 2D shape also has the Transform properties (Base X, Base Y, Rotation, Scale, Mirroring X) and the Polar Array properties, listed after the shape's own properties.