Revision: 55014
http://brlcad.svn.sourceforge.net/brlcad/?rev=55014&view=rev
Author: n_reed
Date: 2013-04-02 21:22:32 +0000 (Tue, 02 Apr 2013)
Log Message:
-----------
Add adaptive plot routine for brep based on the existing plot routine. Only
adaptively plotting curves for now.
Modified Paths:
--------------
brlcad/trunk/src/librt/primitives/brep/brep.cpp
brlcad/trunk/src/librt/primitives/table.c
Modified: brlcad/trunk/src/librt/primitives/brep/brep.cpp
===================================================================
--- brlcad/trunk/src/librt/primitives/brep/brep.cpp 2013-04-02 20:52:30 UTC
(rev 55013)
+++ brlcad/trunk/src/librt/primitives/brep/brep.cpp 2013-04-02 21:22:32 UTC
(rev 55014)
@@ -78,6 +78,7 @@
int rt_brep_class(const struct soltab *stp, const fastf_t *min, const
fastf_t *max, const struct bn_tol *tol);
void rt_brep_uv(struct application *ap, struct soltab *stp, register
struct hit *hitp, register struct uvcoord *uvp);
void rt_brep_free(register struct soltab *stp);
+ int rt_brep_adaptive_plot(struct rt_db_internal *ip, const struct
rt_view_info *info);
int rt_brep_plot(struct bu_list *vhead, struct rt_db_internal *ip, const
struct rt_tess_tol *ttol, const struct bn_tol *tol, const struct rt_view_info
*UNUSED(info));
int rt_brep_tess(struct nmgregion **r, struct model *m, struct
rt_db_internal *ip, const struct rt_tess_tol *ttol, const struct bn_tol *tol);
int rt_brep_export5(struct bu_external *ep, const struct rt_db_internal
*ip, double local2mm, const struct db_i *dbip);
@@ -2609,7 +2610,95 @@
return;
}
+int
+rt_brep_adaptive_plot(struct rt_db_internal *ip, const struct rt_view_info
*info)
+{
+ TRACE1("rt_brep_adaptive_plot");
+ struct rt_brep_internal* bi;
+ point_t pt1, pt2;
+ int i, j;
+ BU_CK_LIST_HEAD(info->vhead);
+ RT_CK_DB_INTERNAL(ip);
+ bi = (struct rt_brep_internal*)ip->idb_ptr;
+ RT_BREP_CK_MAGIC(bi);
+
+ ON_Brep* brep = bi->brep;
+ int gridres = 10;
+ int isocurveres = 100;
+
+ for (int index = 0; index < brep->m_F.Count(); index++) {
+ ON_BrepFace& face = brep->m_F[index];
+ const ON_Surface *surf = face.SurfaceOf();
+
+ if (surf->IsClosed(0) || surf->IsClosed(1)) {
+ ON_SumSurface *sumsurf = const_cast<ON_SumSurface *>
(ON_SumSurface::Cast(surf));
+ if (sumsurf != NULL) {
+ SurfaceTree* st = new SurfaceTree(&face, true, 2);
+
+ plot_face_from_surface_tree(info->vhead, st, isocurveres,
gridres);
+
+ delete st;
+ } else {
+ ON_RevSurface *revsurf = const_cast<ON_RevSurface *>
(ON_RevSurface::Cast(surf));
+
+ if (revsurf != NULL) {
+ SurfaceTree* st = new SurfaceTree(&face, true, 0);
+
+ plot_face_from_surface_tree(info->vhead, st, isocurveres,
gridres);
+
+ delete st;
+ }
+ }
+ }
+ }
+
+ for (i = 0; i < bi->brep->m_E.Count(); i++) {
+ ON_BrepEdge& e = brep->m_E[i];
+ const ON_Curve* crv = e.EdgeCurveOf();
+
+ if (crv->IsLinear()) {
+ ON_BrepVertex& v1 = brep->m_V[e.m_vi[0]];
+ ON_BrepVertex& v2 = brep->m_V[e.m_vi[1]];
+ VMOVE(pt1, v1.Point());
+ VMOVE(pt2, v2.Point());
+ RT_ADD_VLIST(info->vhead, pt1, BN_VLIST_LINE_MOVE);
+ RT_ADD_VLIST(info->vhead, pt2, BN_VLIST_LINE_DRAW);
+ } else {
+ ON_BoundingBox bbox;
+ double bbox_len = 0.0;
+
+ if (crv->GetTightBoundingBox(bbox)) {
+ bbox_len = bbox.Diagonal().Length();
+ } else {
+ bu_log("invalid curve bounding box\n");
+ }
+
+ // estimate curve length from curve bbox diagonal length
+ double est_curve_len = bbox_len * .8;
+ double num_steps = est_curve_len / info->point_spacing;
+ double step = 1.0 / num_steps;
+ ON_Interval dom = crv->Domain();
+ ON_3dPoint p;
+
+ p = crv->PointAt(dom.ParameterAt(0.0));
+ VMOVE(pt1, p);
+ RT_ADD_VLIST(info->vhead, pt1, BN_VLIST_LINE_MOVE);
+
+ for (double domainval = step; domainval < 1.0; domainval += step) {
+ p = crv->PointAt(dom.ParameterAt(domainval));
+ VMOVE(pt1, p);
+ RT_ADD_VLIST(info->vhead, pt1, BN_VLIST_LINE_DRAW);
+ }
+ p = crv->PointAt(dom.ParameterAt(1.0));
+ VMOVE(pt1, p);
+ RT_ADD_VLIST(info->vhead, pt1, BN_VLIST_LINE_DRAW);
+ }
+ }
+
+ return 0;
+}
+
/**
* R T _ B R E P _ P L O T
*
Modified: brlcad/trunk/src/librt/primitives/table.c
===================================================================
--- brlcad/trunk/src/librt/primitives/table.c 2013-04-02 20:52:30 UTC (rev
55013)
+++ brlcad/trunk/src/librt/primitives/table.c 2013-04-02 21:22:32 UTC (rev
55014)
@@ -1689,8 +1689,8 @@
rt_brep_class,
rt_brep_free,
rt_brep_plot,
+ rt_brep_adaptive_plot,
NULL,
- NULL,
rt_brep_tess,
NULL,
NULL,
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