renamed math functions and made public

 lambda_cp_line --> line_point_factor_v3
 lambda_cp_line2 --> line_point_factor_v2

correction to previous commit function name
 isect_seg_sphere_v3 --> isect_line_sphere_v3
 ... since its not clipped.

added a clip argument to the python version of the function.

1 files changed, 4 insertions, 1 deletions

diff --git a/source/blender/blenlib/BLI_math_geom.h b/source/blender/blenlib/BLI_math_geom.h
index 26cf315fc36..c905ada184d 100644
--- a/source/blender/blenlib/BLI_math_geom.h
+++ b/source/blender/blenlib/BLI_math_geom.h
@@ -66,6 +66,9 @@ float closest_to_line_v3(float r[3], const float p[3], const float l1[3], const
 float closest_to_line_v2(float r[2], const float p[2], const float l1[2], const float l2[2]);
 void closest_to_line_segment_v3(float r[3], const float p[3], const float l1[3], const float l2[3]);
 
+float line_point_factor_v3(const float p[3], const float l1[3], const float l2[3]);
+float line_point_factor_v2(const float p[2], const float l1[2], const float l2[2]);
+
 /******************************* Intersection ********************************/
 
 /* TODO int return value consistency */
@@ -78,8 +81,8 @@ void closest_to_line_segment_v3(float r[3], const float p[3], const float l1[3],
 
 int isect_line_line_v2(const float a1[2], const float a2[2], const float b1[2], const float b2[2]);
 int isect_line_line_v2_int(const int a1[2], const int a2[2], const int b1[2], const int b2[2]);
+int isect_line_sphere_v3(const float l1[3], const float l2[3], const float sp[3], const float r, float r_p1[3], float r_p2[3]);
 int isect_seg_seg_v2_point(const float v1[2], const float v2[2], const float v3[2], const float v4[2], float vi[2]);
-int isect_seg_sphere_v3(const float l1[3], const float l2[3], const float sp[3], const float r, float r_p1[3], float r_p2[3]);
 
 /* Returns the number of point of interests
  * 0 - lines are colinear