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gimpmath

Name

gimpmath -- Mathematical definitions and macros.

Synopsis



#define     FINITE                          (x)
#define     G_PI
#define     G_PI_2
#define     G_PI_4
#define     G_SQRT2
#define     G_MAXRAND
#define     RINT                            (x)
#define     ROUND                           (x)
#define     SQR                             (x)
#define     MAX255                          (a)
#define     CLAMP0255                       (a)
#define     gimp_deg_to_rad                 (angle)
#define     gimp_rad_to_deg                 (angle)

Description

Mathematical definitions and macros.

Details

FINITE()

#define     FINITE(x)

x : 

G_PI

#define G_PI    3.14159265358979323846

G_PI_2

#define G_PI_2  1.57079632679489661923

G_PI_4

#define G_PI_4  0.78539816339744830962

G_SQRT2

#define G_SQRT2 1.4142135623730951

G_MAXRAND

#define     G_MAXRAND

RINT()

#define     RINT(x)

x : 

ROUND()

#define ROUND(x) ((int) ((x) + 0.5))

x : 

SQR()

#define SQR(x) ((x) * (x))

x : 

MAX255()

#define MAX255(a)  ((a) | (((a) & 256) - (((a) & 256) >> 8)))

a : 

CLAMP0255()

#define CLAMP0255(a)  CLAMP(a,0,255)

a : 

gimp_deg_to_rad()

#define gimp_deg_to_rad(angle) ((angle) * (2.0 * G_PI) / 360.0)

angle : 

gimp_rad_to_deg()

#define gimp_rad_to_deg(angle) ((angle) * 360.0 / (2.0 * G_PI))

angle : 



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