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102 lines
3 KiB
XML
102 lines
3 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<class name="BitMap" inherits="Resource" category="Core" version="3.1">
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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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<demos>
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</demos>
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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 false.
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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 false if the alpha value of the image at that position is equal to [code]threshold[/code] or less, and true 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 true.
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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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</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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