math_base.c File Reference

#include "BLI_math.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 109 of file math_base.c.

References BLI_assert, floorf, and powf.

Referenced by cursor_plane_draw(), and TEST().

double_round()

double double_round	(	double	x,
		int	ndigits
	)

Definition at line 47 of file math_base.c.

References fabs(), CCL_NAMESPACE_BEGIN::isfinite(), KDL::pow(), x, y, and z.

Referenced by bc_sanitize_v3(), Color_ToTupleExt(), Euler_ToTupleExt(), Quaternion_to_tuple_ext(), 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 91 of file math_base.c.

References BLI_assert, ceilf, and powf.

Referenced by TEST().

pow_i()

int pow_i	(	int	base,
		int	exp
	)

Definition at line 30 of file math_base.c.

References BLI_assert, KDL::exp(), and result.

Referenced by multires_create_grids_in_unsubdivided_base_mesh(), and paint_proj_new_stroke().