hpgs/lib/hpgsmatrix.c

42   m->myy = m->mxx = 1.0;
53   double x = m->dx + m->mxx * p->x + m->mxy * p->y;
70   double det = m->mxx * m->myy - m->mxy * m->myx;
73   res->y = (m->mxx * y0 - m->myx * x0)/det;
144   double x = m->mxx * p->x + m->mxy * p->y;
164   double det = m->mxx * m->myy - m->mxy * m->myx;
167   res->y = (m->mxx * y0 - m->myx * x0)/det;
181   // | dx mxx mxy | x | Dx Mxx Mxy | = | dx+Dx*mxx+Dy*mxy mxx*Mxx+mxy*Myx mxx*Mxy+mxy*Myy |
186   r0 = a->dx+b->dx*a->mxx+b->dy*a->mxy;
192   r0 = a->mxx*b->mxx+a->mxy*b->myx;
193   r1 = a->mxx*b->mxy+a->mxy*b->myy;
194   r2 = a->myx*b->mxx+a->myy*b->myx;
197   res->mxx = r0;
210   double det = m->mxx * m->myy - m->mxy * m->myx;
212   double tmp = m->mxx/det;
213   res->mxx = m->myy/det;
221   res->dx = x0 * res->mxx + y0 * res->mxy;