Lines Matching refs:t0
1175 * set attributes via inner (t=t0) knot point:
1205 spiral->getPolar(spiral->t0, NULL, &arg_t0);
1209 spiral->t0 = (arg_t0_new - spiral->arg) / (2.0*M_PI*spiral->revo);
1215 gdouble arg = 2.0*M_PI*spiral->revo*spiral->t0 + spiral->arg;
1216 spiral->t0 = (sp_round(arg, M_PI/snaps) - spiral->arg)/(2.0*M_PI*spiral->revo);
1219 spiral->t0 = CLAMP(spiral->t0, 0.0, 0.999);
1282 if (t_temp > spiral->t0)
1292 // adjust t0 too so that the inner point stays unmoved
1294 spiral->getPolar(spiral->t0, &r0, NULL);
1296 spiral->t0 = pow(r0 / spiral->rad, 1.0/spiral->exp);
1298 if (!IS_FINITE(spiral->t0)) spiral->t0 = 0.0;
1299 spiral->t0 = CLAMP(spiral->t0, 0.0, 0.999);
1311 return spiral->getXY(spiral->t0);
1333 spiral->t0 = 0;