1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
<!-- ##### SECTION Title ##### -->
GimpMath
<!-- ##### SECTION Short_Description ##### -->
Mathematical definitions and macros.
<!-- ##### SECTION Long_Description ##### -->
<para>
Mathematical definitions and macros. These macros should be used
rather than the ones from math.h for enhanced portability.
</para>
<!-- ##### SECTION See_Also ##### -->
<para>
</para>
<!-- ##### SECTION Stability_Level ##### -->
<!-- ##### MACRO RINT ##### -->
<para>
This macro rounds its argument @x to an integer value in floating point
format.
</para>
@x: the value to be rounded.
<!-- ##### MACRO ROUND ##### -->
<para>
This macro rounds its argument @x to the nearest integer.
</para>
@x: the value to be rounded.
<!-- ##### MACRO SQR ##### -->
<para>
This macro squares its argument @x.
</para>
@x: the value to be squared.
<!-- ##### MACRO MAX255 ##### -->
<para>
This macro limits it argument @a, an (0-511) int, to 255.
</para>
@a: the value to be limited.
<!-- ##### MACRO CLAMP0255 ##### -->
<para>
This macro clamps its argument @a, an int32-range int, between 0 and
255 inclusive.
</para>
@a: the value to be clamped.
<!-- ##### MACRO gimp_deg_to_rad ##### -->
<para>
This macro converts its argument @angle from degree to radian.
</para>
@angle: the angle to be converted.
<!-- ##### MACRO gimp_rad_to_deg ##### -->
<para>
This macro converts its argument @angle from radian to degree.
</para>
@angle: the angle to be converted.
|
