void intersectCurveSurf(SplineCurve *cv, SplineSurface *sf, double epsge, vector<pair<double, Point> >& int_pts, vector<int>& pretopology, vector<pair<pair<double,Point>, pair<double,Point> > >& int_crvs) { SISLSurf* sislsf = GoSurf2SISL(*sf, false); SISLCurve* sislcv = Curve2SISL(*cv, false); int kntrack = 0; int trackflag = 0; // Do not make tracks. SISLTrack **track =0; int knpt=0, kncrv=0; double *par1=0, *par2=0; int *pretop = 0; SISLIntcurve **vcrv = 0; int stat = 0; sh1858(sislsf, sislcv, 0.0, epsge, trackflag, &kntrack, &track, &knpt, &par1, &par2, &pretop, &kncrv, &vcrv, &stat); ALWAYS_ERROR_IF(stat<0,"Error in intersection, code: " << stat); // Remember intersections points. int ki; for (ki=0; ki<knpt; ki++) { int_pts.push_back(std::make_pair(par2[ki], Point(par1[2*ki],par1[2*ki+1]))); pretopology.insert(pretopology.end(), pretop+4*ki+2, pretop+4*(ki+1)); pretopology.insert(pretopology.end(), pretop+4*ki, pretop+4*ki+2); } // Remember intersection curves for (ki=0; ki<kncrv; ++ki) { int nmb_pt = vcrv[ki]->ipoint; Point par1 = Point(vcrv[ki]->epar1[0],vcrv[ki]->epar1[1]); Point par2 = Point(vcrv[ki]->epar1[2*(nmb_pt-1)], vcrv[ki]->epar1[2*nmb_pt-1]); int_crvs.push_back(std::make_pair(std::make_pair(vcrv[ki]->epar2[0], par1), std::make_pair(vcrv[ki]->epar2[nmb_pt-1], par2))); } if (kncrv > 0) freeIntcrvlist(vcrv, kncrv); if (par1 != NULL) free(par1); if (par2 != NULL) free(par2); if (sislsf != NULL) freeSurf(sislsf); if (sislcv != NULL) freeCurve(sislcv); if (pretop != NULL) free(pretop); }
void intersectcurves(SplineCurve* cv1, SplineCurve* cv2, double epsge, vector<std::pair<double,double> >& intersections) //************************************************************************ // // Intersect two spline curves. Collect intersection parameters. // //*********************************************************************** { // Make sisl curves and call sisl. SISLCurve *pc1 = Curve2SISL(*cv1, false); SISLCurve *pc2 = Curve2SISL(*cv2, false); int kntrack = 0; int trackflag = 0; // Do not make tracks. SISLTrack **track =0; int knpt=0, kncrv=0; double *par1=0, *par2=0; int *pretop = 0; SISLIntcurve **intcrvs = 0; int stat = 0; sh1857(pc1, pc2, 0.0, epsge, trackflag, &kntrack, &track, &knpt, &par1, &par2, &pretop, &kncrv, &intcrvs, &stat); ALWAYS_ERROR_IF(stat<0,"Error in intersection, code: " << stat); // Remember intersections points. The intersection curves are // skipped. int ki; for (ki=0; ki<knpt; ki++) { intersections.push_back(std::make_pair(par1[ki],par2[ki])); } if (kncrv > 0) freeIntcrvlist(intcrvs, kncrv); if (par1 != 0) free(par1); if (par2 != 0) free(par2); if (pretop != 0) free(pretop); if (pc1 != 0) freeCurve(pc1); if (pc2 != 0) freeCurve(pc2); }
void intersectCurvePoint(const ParamCurve* crv, Point pnt, double epsge, vector<double>& intersections, vector<pair<double, double> >& int_crvs) //************************************************************************ // // Intersect a curve with a point // //*********************************************************************** { // First make sure that the curve is a spline curve ParamCurve* tmpcrv = const_cast<ParamCurve*>(crv); SplineCurve* sc = tmpcrv->geometryCurve(); if (sc == NULL) THROW("ParamCurve doesn't have a spline representation."); // Make sisl curve and call sisl. SISLCurve *pc = Curve2SISL(*sc, false); int knpt=0, kncrv=0; double *par=0; SISLIntcurve **vcrv = 0; int stat = 0; s1871(pc, pnt.begin(), pnt.size(), epsge, &knpt, &par, &kncrv, &vcrv, &stat); ALWAYS_ERROR_IF(stat<0,"Error in intersection, code: " << stat); // Remember intersections points. if (knpt > 0) intersections.insert(intersections.end(), par, par+knpt); // Remember intersection curves for (int ki=0; ki<kncrv; ++ki) int_crvs.push_back(std::make_pair(vcrv[ki]->epar1[0], vcrv[ki]->epar1[vcrv[ki]->ipoint-1])); if (kncrv > 0) freeIntcrvlist(vcrv, kncrv); if (par != 0) free(par); if (pc) freeCurve(pc); delete sc; }
void intersect2Dcurves(const ParamCurve* cv1, const ParamCurve* cv2, double epsge, vector<pair<double,double> >& intersections, vector<int>& pretopology, vector<pair<pair<double,double>, pair<double,double> > >& int_crvs) //************************************************************************ // // Intersect two 2D spline curves. Collect intersection parameters // and pretopology information. // //*********************************************************************** { // First make sure that the curves are spline curves. ParamCurve* tmpcv1 = const_cast<ParamCurve*>(cv1); ParamCurve* tmpcv2 = const_cast<ParamCurve*>(cv2); SplineCurve* sc1 = tmpcv1->geometryCurve(); SplineCurve* sc2 = tmpcv2->geometryCurve(); if (sc1 == NULL || sc2 == NULL) THROW("ParamCurves doesn't have a spline representation."); MESSAGE_IF(cv1->dimension() != 2, "Dimension different from 2, pretopology not reliable."); // Make sisl curves and call sisl. SISLCurve *pc1 = Curve2SISL(*sc1, false); SISLCurve *pc2 = Curve2SISL(*sc2, false); int kntrack = 0; int trackflag = 0; // Do not make tracks. SISLTrack **track =0; int knpt=0, kncrv=0; double *par1=0, *par2=0; int *pretop = 0; SISLIntcurve **vcrv = 0; int stat = 0; sh1857(pc1, pc2, 0.0, epsge, trackflag, &kntrack, &track, &knpt, &par1, &par2, &pretop, &kncrv, &vcrv, &stat); ALWAYS_ERROR_IF(stat<0,"Error in intersection, code: " << stat); // Remember intersections points. int ki; for (ki=0; ki<knpt; ki++) { intersections.push_back(std::make_pair(par1[ki],par2[ki])); pretopology.insert(pretopology.end(), pretop+4*ki, pretop+4*(ki+1)); } // Remember intersection curves for (ki=0; ki<kncrv; ++ki) int_crvs.push_back(std::make_pair(std::make_pair(vcrv[ki]->epar1[0], vcrv[ki]->epar2[0]), std::make_pair(vcrv[ki]->epar1[vcrv[ki]->ipoint-1], vcrv[ki]->epar2[vcrv[ki]->ipoint-1]))); if (kncrv > 0) freeIntcrvlist(vcrv, kncrv); if (par1 != 0) free(par1); if (par2 != 0) free(par2); if (pc1 != 0) freeCurve(pc1); if (pc2 != 0) freeCurve(pc2); if (pretop != 0) free(pretop); delete sc1; delete sc2; }