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- translations for comments in blender lib files

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This commit is contained in:
Ton Roosendaal
2003-04-26 16:02:26 +00:00
parent 701ebe126a
commit 695c968825
7 changed files with 175 additions and 175 deletions
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87
source/blender/blenlib/intern/arithb.c
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@@ -1,5 +1,6 @@
/* formules voor blender
/* arithb.c
*
* simple math for blender code
*
* sort of cleaned up mar-01 nzc
*
@@ -229,8 +230,8 @@ int Mat4Invert(float inverse[][4], const float mat[][4])
#ifdef TEST_ACTIVE
void Mat4InvertSimp(float inverse[][4], const float mat[][4])
{
/* alleen HOEK bewarende Matrices */
/* gebaseerd op GG IV pag 205 */
/* only for Matrices that have a rotation */
/* based at GG IV pag 205 */
float scale;
scale= mat[0][0]*mat[0][0] + mat[1][0]*mat[1][0] + mat[2][0]*mat[2][0];
@@ -238,7 +239,7 @@ void Mat4InvertSimp(float inverse[][4], const float mat[][4])
scale= 1.0/scale;
/* transpose en scale */
/* transpose and scale */
inverse[0][0]= scale*mat[0][0];
inverse[1][0]= scale*mat[0][1];
inverse[2][0]= scale*mat[0][2];
@@ -382,7 +383,7 @@ void Mat4Adj(float out[][4], const float in[][4]) /* out = ADJ(in) */
out[3][3] = Det3x3( a1, a2, a3, b1, b2, b3, c1, c2, c3);
}
void Mat4InvGG(float out[][4], const float in[][4]) /* van Graphic Gems I, out= INV(in) */
void Mat4InvGG(float out[][4], const float in[][4]) /* from Graphic Gems I, out= INV(in) */
{
int i, j;
float det;
@@ -403,7 +404,7 @@ void Mat4InvGG(float out[][4], const float in[][4]) /* van Graphic Gems I, out=
for(j=0; j<4; j++)
out[i][j] = out[i][j] / det;
/* de laatste factor is niet altijd 1. Hierdoor moet eigenlijk nog gedeeld worden */
/* the last factor is not always 1. For that reason an extra division should be implemented? */
}
@@ -412,10 +413,10 @@ void Mat3Inv(float m1[][3], const float m2[][3])
short a,b;
float det;
/* eerst adjoint */
/* calc adjoint */
Mat3Adj(m1,m2);
/* dan det oude mat! */
/* then determinant old matrix! */
det= m2[0][0]* (m2[1][1]*m2[2][2] - m2[1][2]*m2[2][1])
-m2[1][0]* (m2[0][1]*m2[2][2] - m2[0][2]*m2[2][1])
+m2[2][0]* (m2[0][1]*m2[1][2] - m2[0][2]*m2[1][1]);
@@ -886,11 +887,11 @@ void Mat4MulFloat(float *m, float f)
{
int i;
for(i=0;i<12;i++) m[i]*=f; /* tot 12 tellen: zonder vector */
for(i=0;i<12;i++) m[i]*=f; /* count to 12: without vector component */
}
void Mat4MulFloat3(float *m, float f) /* alleen de scale component */
void Mat4MulFloat3(float *m, float f) /* only scale component */
{
int i,j;
@@ -1053,14 +1054,14 @@ void QuatToMat4(const float *q, float m[][4])
m[3][3]= 1.0f;
}
void Mat3ToQuat(const float wmat[][3], float *q) /* uit Sig.Proc.85 pag 253 */
void Mat3ToQuat(const float wmat[][3], float *q) /* from Sig.Proc.85 pag 253 */
{
double tr, s;
float mat[3][3];
/* voor de netheid: op kopie werken */
/* work on a copy */
Mat3CpyMat3(mat, wmat);
Mat3Ortho(mat); /* dit moet EN op eind NormalQuat */
Mat3Ortho(mat); /* this is needed AND a NormalQuat in the end */
tr= 0.25*(1.0+mat[0][0]+mat[1][1]+mat[2][2]);
@@ -1104,13 +1105,13 @@ void Mat3ToQuat_is_ok(const float wmat[][3], float *q)
{
float mat[3][3], matr[3][3], matn[3][3], q1[4], q2[4], hoek, si, co, nor[3];
/* voor de netheid: op kopie werken */
/* work on a copy */
Mat3CpyMat3(mat, wmat);
Mat3Ortho(mat);
/* roteer z-as matrix op z-as */
/* rotate z-axis of matrix to z-axis */
nor[0] = mat[2][1]; /* uitprodukt met (0,0,1) */
nor[0] = mat[2][1]; /* cross product with (0,0,1) */
nor[1] = -mat[2][0];
nor[2] = 0.0;
Normalise(nor);
@@ -1121,16 +1122,16 @@ void Mat3ToQuat_is_ok(const float wmat[][3], float *q)
co= (float)cos(hoek);
si= (float)sin(hoek);
q1[0]= co;
q1[1]= -nor[0]*si; /* hier negatief, waarom is een raadsel */
q1[1]= -nor[0]*si; /* negative here, but why? */
q1[2]= -nor[1]*si;
q1[3]= -nor[2]*si;
/* roteer x-as van mat terug volgens inverse q1 */
/* rotate back x-axis from mat, using inverse q1 */
QuatToMat3(q1, matr);
Mat3Inv(matn, matr);
Mat3MulVecfl(matn, mat[0]);
/* en zet de x-asssen gelijk */
/* and align x-axes */
hoek= (float)(0.5*atan2(mat[0][1], mat[0][0]));
co= (float)cos(hoek);
@@ -1180,7 +1181,7 @@ float *vectoquat(const float *vec, short axis, short upflag)
static float q1[4];
float q2[4], nor[3], *fp, mat[3][3], hoek, si, co, x2, y2, z2, len1;
/* eerst roteer naar as */
/* first rotate to axis */
if(axis>2) {
x2= vec[0] ; y2= vec[1] ; z2= vec[2];
axis-= 3;
@@ -1199,7 +1200,7 @@ float *vectoquat(const float *vec, short axis, short upflag)
* problem is a rotation of an Y axis to the negative Y-axis for example.
*/
if(axis==0) { /* x-as */
if(axis==0) { /* x-axis */
nor[0]= 0.0;
nor[1]= -z2;
nor[2]= y2;
@@ -1210,7 +1211,7 @@ float *vectoquat(const float *vec, short axis, short upflag)
co= x2;
}
else if(axis==1) { /* y-as */
else if(axis==1) { /* y-axis */
nor[0]= z2;
nor[1]= 0.0;
nor[2]= -x2;
@@ -1221,7 +1222,7 @@ float *vectoquat(const float *vec, short axis, short upflag)
co= y2;
}
else { /* z-as */
else { /* z-axis */
nor[0]= -y2;
nor[1]= x2;
nor[2]= 0.0;
@@ -1278,7 +1279,7 @@ void VecUpMat3old(const float *vec, float mat[][3], short axis)
float inp, up[3];
short cox = 0, coy = 0, coz = 0;
/* up varieeren heeft geen zin, is eigenlijk helemaal geen up!
/* using different up's is not useful, infact there is no real 'up'!
*/
up[0]= 0.0;
@@ -1324,10 +1325,9 @@ void VecUpMat3(float *vec, float mat[][3], short axis)
{
float inp;
short cox = 0, coy = 0, coz = 0;
/* up varieeren heeft geen zin, is eigenlijk helemaal geen up!
* zie VecUpMat3old
*/
/* using different up's is not useful, infact there is no real 'up'!
*/
if(axis==0) {
cox= 0; coy= 1; coz= 2; /* Y up Z tr */
@@ -1368,7 +1368,7 @@ void VecUpMat3(float *vec, float mat[][3], short axis)
}
/* **************** VIEW / PROJEKTIE ******************************** */
/* **************** VIEW / PROJECTION ******************************** */
void i_ortho(
@@ -1640,7 +1640,7 @@ int VecCompare(const float *v1, const float *v2, float limit)
return 0;
}
void CalcNormShort(const short *v1, const short *v2, const short *v3, float *n) /* is ook uitprodukt */
void CalcNormShort(const short *v1, const short *v2, const short *v3, float *n) /* is also cross product */
{
float n1[3],n2[3];
@@ -1738,9 +1738,10 @@ double Sqrt3d(double d)
if(d<0) return -exp(log(-d)/3);
else return exp(log(d)/3);
}
/* afstand v1 tot lijn v2-v3 */
float DistVL2Dfl(const float *v1,const float *v2,const float *v3) /* met formule van Hesse :GEEN LIJNSTUK! */
{
/* distance v1 to line v2-v3 */
/* using Hesse formula, NO LINE PIECE! */
float DistVL2Dfl(const float *v1,const float *v2,const float *v3) {
float a[2],deler;
a[0]= v2[1]-v3[1];
@@ -1752,7 +1753,8 @@ float DistVL2Dfl(const float *v1,const float *v2,const float *v3) /* met formu
}
float PdistVL2Dfl(const float *v1,const float *v2,const float *v3) /* PointDist: WEL LIJNSTUK */
/* distance v1 to line-piece v2-v3 */
float PdistVL2Dfl(const float *v1,const float *v2,const float *v3)
{
float labda, rc[2], pt[2], len;
@@ -2156,10 +2158,10 @@ void Mat4ToSize(const float mat[][4], float *size)
void triatoquat(const float *v1, const float *v2, const float *v3, float *quat)
{
/* denkbeeldige x-as, y-as driehoek wordt geroteerd */
/* imaginary x-axis, y-axis triangle is being rotated */
float vec[3], q1[4], q2[4], n[3], si, co, hoek, mat[3][3], imat[3][3];
/* eerst z-as op vlaknormaal */
/* move z-axis to face-normal */
CalcNormFloat(v1, v2, v3, vec);
n[0]= vec[1];
@@ -2177,13 +2179,13 @@ void triatoquat(const float *v1, const float *v2, const float *v3, float *quat)
q1[2]= n[1]*si;
q1[3]= 0.0f;
/* v1-v2 lijn terug roteren */
/* rotate back line v1-v2 */
QuatToMat3(q1, mat);
Mat3Inv(imat, mat);
VecSubf(vec, v2, v1);
Mat3MulVecfl(imat, vec);
/* welke hoek maakt deze lijn met x-as? */
/* what angle has this line with x-axis? */
vec[2]= 0.0;
Normalise(vec);
@@ -2310,9 +2312,10 @@ void rgb_to_hsv(float r, float g, float b, float *lh, float *ls, float *lv)
*lv = v;
}
/* Bij afspraak is cpack een getal dat als 0xFFaa66 of zo kan worden uitgedrukt. Is dus gevoelig voor endian.
* Met deze define wordt het altijd goed afgebeeld
*/
/* we define a 'cpack' here as a (3 byte color code) number that can be expressed like 0xFFAA66 or so.
for that reason it is sensitive for endianness... with this function it works correctly
*/
unsigned int hsv_to_cpack(float h, float s, float v)
{