A two-pass hatching with alternating fields
The checkerboard pattern fills a contour with rectangular fields of parallel hatch lines in a checkerboard pattern in a first pass. The same process is repeated to fill the gaps in a second pass. Only the contour geometry is used. Any hatches in the input are discarded.
| Parameter | Default Value | Description |
|---|---|---|
| Hatch distance | mandatory | Distance between hatch lines. |
| Quad width, Quad height | mandatory | Size of the fields |
| Quad gap | 0 | Gap between the fields. A negative gap makes the fields overlap. |
| Angle | 0 | Rotates the hatching pattern around the counter-clockwise |
| Angle increment | 90 | Determines how much the angle is increased layer by layer. |
| Only each ... layer | 1 | Renders only those layers that are this interval apart, starting with the first layer |
| Layer offset | 0 | Specifies which layer is the first to be actually hatched when onlyeachlayer parameter is larger than 1. For example, when onlyeachlayer is 2, a layer offset of 0 draws only odd layers while a layer offset of 1 draws only the even ones. |
| Hatch origin increment | 0 | While hatching with parallel lines, there is an ambiguity where the first line starts in perpendicular direction. The Originincrement parameter moves the starting point of the hatch lines layer by layer. |
| Sort type | none | Defines how the fill hatches are sorted. Possible values are:
|
XML Configuration example code:
<checkerboard name="filling" entry="shere" distance="0.6" width="8.000" height="5.000" />