diff options
Diffstat (limited to 'source/blender/blenlib/intern/math_geom.c')
| -rw-r--r-- | source/blender/blenlib/intern/math_geom.c | 30 |
1 files changed, 13 insertions, 17 deletions
diff --git a/source/blender/blenlib/intern/math_geom.c b/source/blender/blenlib/intern/math_geom.c index e8fb922ce4d..68b1feea632 100644 --- a/source/blender/blenlib/intern/math_geom.c +++ b/source/blender/blenlib/intern/math_geom.c @@ -317,7 +317,7 @@ static short IsectLLPt2Df(float x0,float y0,float x1,float y1, return -1; /*m2 = (float) 1e+10;*/ // close enough to infinity if (fabs(m1-m2) < 0.000001) - return -1; /* paralelle lines */ + return -1; /* parallel lines */ // compute constants @@ -841,10 +841,8 @@ int isect_line_line_v3(float v1[3], float v2[3], float v3[3], float v4[3], float sub_v3_v3v3(a, v2, v1); sub_v3_v3v3(b, v4, v3); - copy_v3_v3(dir1, a); - normalize_v3(dir1); - copy_v3_v3(dir2, b); - normalize_v3(dir2); + normalize_v3_v3(dir1, a); + normalize_v3_v3(dir2, b); d = dot_v3v3(dir1, dir2); if (d == 1.0f || d == -1.0f) { /* colinear */ @@ -908,10 +906,8 @@ int isect_line_line_strict_v3(float v1[3], float v2[3], float v3[3], float v4[3] sub_v3_v3v3(a, v2, v1); sub_v3_v3v3(b, v4, v3); - copy_v3_v3(dir1, a); - normalize_v3(dir1); - copy_v3_v3(dir2, b); - normalize_v3(dir2); + normalize_v3_v3(dir1, a); + normalize_v3_v3(dir2, b); d = dot_v3v3(dir1, dir2); if (d == 1.0f || d == -1.0f || d == 0) { /* colinear or one vector is zero-length*/ @@ -993,14 +989,14 @@ void isect_point_quad_uv_v2(float v0[2], float v1[2], float v2[2], float v3[2], { float x0,y0, x1,y1, wtot, v2d[2], w1, w2; - /* used for paralelle lines */ + /* used for parallel lines */ float pt3d[3], l1[3], l2[3], pt_on_line[3]; /* compute 2 edges of the quad intersection point */ if (IsectLLPt2Df(v0[0],v0[1],v1[0],v1[1], v2[0],v2[1],v3[0],v3[1], &x0,&y0) == 1) { /* the intersection point between the quad-edge intersection and the point in the quad we want the uv's for */ /* should never be paralle !! */ - /*printf("\tnot paralelle 1\n");*/ + /*printf("\tnot parallel 1\n");*/ IsectLLPt2Df(pt[0],pt[1],x0,y0, v0[0],v0[1],v3[0],v3[1], &x1,&y1); /* Get the weights from the new intersection point, to each edge */ @@ -1016,8 +1012,8 @@ void isect_point_quad_uv_v2(float v0[2], float v1[2], float v2[2], float v3[2], /*w2 = w2/wtot;*/ uv[0] = w1/wtot; } else { - /* lines are paralelle, lambda_cp_line_ex is 3d grrr */ - /*printf("\tparalelle1\n");*/ + /* lines are parallel, lambda_cp_line_ex is 3d grrr */ + /*printf("\tparallel1\n");*/ pt3d[0] = pt[0]; pt3d[1] = pt[1]; pt3d[2] = l1[2] = l2[2] = 0.0f; @@ -1043,7 +1039,7 @@ void isect_point_quad_uv_v2(float v0[2], float v1[2], float v2[2], float v3[2], if (IsectLLPt2Df(v0[0],v0[1],v3[0],v3[1], v1[0],v1[1],v2[0],v2[1], &x0,&y0) == 1) { /* was v0,v1 v2,v3 now v0,v3 v1,v2*/ /* never paralle if above was not */ - /*printf("\tnot paralelle2\n");*/ + /*printf("\tnot parallel2\n");*/ IsectLLPt2Df(pt[0],pt[1],x0,y0, v0[0],v0[1],v1[0],v1[1], &x1,&y1);/* was v0,v3 now v0,v1*/ v2d[0] = x1-v0[0]; @@ -1056,8 +1052,8 @@ void isect_point_quad_uv_v2(float v0[2], float v1[2], float v2[2], float v3[2], wtot = w1+w2; uv[1] = w1/wtot; } else { - /* lines are paralelle, lambda_cp_line_ex is 3d grrr */ - /*printf("\tparalelle2\n");*/ + /* lines are parallel, lambda_cp_line_ex is 3d grrr */ + /*printf("\tparallel2\n");*/ pt3d[0] = pt[0]; pt3d[1] = pt[1]; pt3d[2] = l1[2] = l2[2] = 0.0f; @@ -1225,7 +1221,7 @@ static int point_in_slice_as(float p[3],float origin[3],float normal[3]) return 1; } -/*mama (knowing the squared lenght of the normal)*/ +/*mama (knowing the squared length of the normal)*/ static int point_in_slice_m(float p[3],float origin[3],float normal[3],float lns) { float h,rp[3]; |