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Merge pull request #47242 from sygi/bitmap-opaque-polygons 

Bitmap opaque_to_polygons documentation
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Rémi Verschelde 2021-06-11 23:44:47 +02:00 committed by GitHub
parent 1b943dbea1 a74791ed68
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doc/classes/BitMap.xml
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@ -71,6 +71,12 @@
<argument index="1" name="epsilon" type="float" default="2.0">
</argument>
<description>
Creates an [Array] of polygons covering a rectangular portion of the bitmap. It uses a marching squares algorithm, followed by Ramer-Douglas-Peucker (RDP) reduction of the number of vertices. Each polygon is described as a [PackedVector2Array] of its vertices.
To get polygons covering the whole bitmap, pass:
[codeblock]
Rect2(Vector2(), get_size())
[/codeblock]
[code]epsilon[/code] is passed to RDP to control how accurately the polygons cover the bitmap: a lower [code]epsilon[/code] corresponds to more points in the polygons.
</description>
</method>
<method name="set_bit">