In stencil design, a donut shape is used to define a circular opening with a central void (hole), commonly used for thermal reliefs or annular ring designs. The donut is generated around a pad center based on several configurable parameters.
| Property | Type | Description |
|---|---|---|
InnerDiameter |
double | Defines the inner diameter of the donut. This is the size of the central hole that will not be cut into the stencil. |
OuterDiameter |
double | Specifies the outer diameter of the donut, representing the total size of the stencil opening. |
AngleStep |
double | Angle between each arc segment when constructing the donut shape. A smaller step creates a smoother circle. |
OffsetX |
double | Offset in X-direction from the pad center, applied to reposition the donut shape. |
OffsetY |
double | Offset in Y-direction from the pad center. |
Rotation |
double | Applies a rotation (in degrees) to the donut shape around the pad center. |
These properties are used by the StencilScriptDonut class to calculate and render the donut shape on stencil pads. The donut is typically composed of an outer arc (outer diameter) and an inner arc (inner diameter), combined with connecting lines to form a closed shape.
Ensure that InnerDiameter is less than OuterDiameter to create a valid donut. Adjust AngleStep based on performance vs. accuracy needs.