math_base.c File Reference

#include "BLI_math_base.h"
#include "BLI_strict_flags.h"

Go to the source code of this file.

Functions
int	pow_i (int base, int exp)
double	double_round (double x, int ndigits)
float	floor_power_of_10 (float f)
float	ceil_power_of_10 (float f)

Function Documentation

ceil_power_of_10()

float ceil_power_of_10

(

float

f

)

Ceiling to the nearest power of 10, e.g.:

• 15.0 -> 100.0
• 0.015 -> 0.1
• 1.0 -> 1.0

Parameters

f	Value to ceiling, must be over 0.0.

Note

If we wanted to support signed values we could if this becomes necessary.

Definition at line 74 of file math_base.c.

References BLI_assert, floorf, and powf.

Referenced by blender::tests::TEST(), and v3d_cursor_plane_draw().

double_round()

double double_round	(	double	x,
		int	ndigits )

Parameters

ndigits

must be between 0 and 21.

Definition at line 28 of file math_base.c.

References fabs(), pow(), x, y, and z().

Referenced by bc_sanitize_v3(), bc_sanitize_v3(), Color_to_tuple_ex(), Euler_to_tuple_ex(), Quaternion_to_tuple_ext(), BCMatrix::sanitize(), BCMatrix::sanitize(), and Vector_to_tuple_ex().

floor_power_of_10()

float floor_power_of_10

(

float

f

)

Floor to the nearest power of 10, e.g.:

• 15.0 -> 10.0
• 0.015 -> 0.01
• 1.0 -> 1.0

Parameters

f	Value to floor, must be over 0.0.

Note

If we wanted to support signed values we could if this becomes necessary.

Definition at line 65 of file math_base.c.

References BLI_assert, ceilf, and powf.

Referenced by blender::tests::TEST().

pow_i()

int pow_i	(	int	base,
		int	exp )

Definition at line 13 of file math_base.c.

References BLI_assert, exp(), and result.

Referenced by multires_create_grids_in_unsubdivided_base_mesh(), and paint_proj_new_stroke().