mirror of https://github.com/GNOME/gimp.git
76 lines
1.4 KiB
Plaintext
76 lines
1.4 KiB
Plaintext
<!-- ##### SECTION Title ##### -->
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GimpMath
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<!-- ##### SECTION Short_Description ##### -->
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Mathematical definitions and macros.
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<!-- ##### SECTION Long_Description ##### -->
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<para>
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Mathematical definitions and macros. These macros should be used
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rather than the ones from math.h for enhanced portability.
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</para>
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<!-- ##### SECTION See_Also ##### -->
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<para>
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</para>
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<!-- ##### MACRO RINT ##### -->
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<para>
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This macro rounds its argument @x to an integer value in floating point
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format.
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</para>
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@x: the value to be rounded.
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<!-- ##### MACRO ROUND ##### -->
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<para>
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This macro rounds its argument @x to the nearest integer.
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</para>
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@x: the value to be rounded.
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<!-- ##### MACRO SQR ##### -->
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<para>
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This macro squares its argument @x.
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</para>
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@x: the value to be squared.
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<!-- ##### MACRO MAX255 ##### -->
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<para>
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This macro limits it argument @a, an (0-511) int, to 255.
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</para>
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@a: the value to be limited.
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<!-- ##### MACRO CLAMP0255 ##### -->
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<para>
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This macro clamps its argument @a, an int32-range int, between 0 and
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255 inclusive.
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</para>
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@a: the value to be clamped.
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<!-- ##### MACRO gimp_deg_to_rad ##### -->
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<para>
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This macro converts its argument @angle from degree to radian.
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</para>
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@angle: the angle to be converted.
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<!-- ##### MACRO gimp_rad_to_deg ##### -->
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<para>
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This macro converts its argument @angle from radian to degree.
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</para>
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@angle: the angle to be converted.
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