1c61c8ab55
Description; > Applies morphological dilation to the bitmap. The first argument is the dilation amount, Rect2 is the area where the dilation will be applied.
101 lines
3.1 KiB
XML
101 lines
3.1 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<class name="BitMap" inherits="Resource" version="4.0">
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<brief_description>
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Boolean matrix.
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</brief_description>
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<description>
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A two-dimensional array of boolean values, can be used to efficiently store a binary matrix (every matrix element takes only one bit) and query the values using natural cartesian coordinates.
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</description>
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<tutorials>
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</tutorials>
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<methods>
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<method name="create">
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<return type="void">
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</return>
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<argument index="0" name="size" type="Vector2">
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</argument>
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<description>
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Creates a bitmap with the specified size, filled with [code]false[/code].
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</description>
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</method>
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<method name="create_from_image_alpha">
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<return type="void">
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</return>
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<argument index="0" name="image" type="Image">
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</argument>
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<argument index="1" name="threshold" type="float" default="0.1">
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</argument>
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<description>
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Creates a bitmap that matches the given image dimensions, every element of the bitmap is set to [code]false[/code] if the alpha value of the image at that position is equal to [code]threshold[/code] or less, and [code]true[/code] in other case.
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</description>
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</method>
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<method name="get_bit" qualifiers="const">
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<return type="bool">
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</return>
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<argument index="0" name="position" type="Vector2">
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</argument>
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<description>
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Returns bitmap's value at the specified position.
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</description>
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</method>
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<method name="get_size" qualifiers="const">
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<return type="Vector2">
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</return>
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<description>
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Returns bitmap's dimensions.
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</description>
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</method>
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<method name="get_true_bit_count" qualifiers="const">
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<return type="int">
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</return>
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<description>
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Returns the amount of bitmap elements that are set to [code]true[/code].
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</description>
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</method>
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<method name="grow_mask">
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<return type="void">
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</return>
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<argument index="0" name="pixels" type="int">
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</argument>
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<argument index="1" name="rect" type="Rect2">
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</argument>
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<description>
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Applies morphological dilation to the bitmap. The first argument is the dilation amount, Rect2 is the area where the dilation will be applied.
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</description>
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</method>
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<method name="opaque_to_polygons" qualifiers="const">
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<return type="Array">
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</return>
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<argument index="0" name="rect" type="Rect2">
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</argument>
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<argument index="1" name="epsilon" type="float" default="2.0">
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</argument>
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<description>
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</description>
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</method>
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<method name="set_bit">
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<return type="void">
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</return>
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<argument index="0" name="position" type="Vector2">
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</argument>
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<argument index="1" name="bit" type="bool">
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</argument>
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<description>
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Sets the bitmap's element at the specified position, to the specified value.
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</description>
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</method>
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<method name="set_bit_rect">
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<return type="void">
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</return>
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<argument index="0" name="rect" type="Rect2">
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</argument>
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<argument index="1" name="bit" type="bool">
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</argument>
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<description>
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Sets a rectangular portion of the bitmap to the specified value.
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</description>
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</method>
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</methods>
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<constants>
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</constants>
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</class>
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