Revision: 52499
http://brlcad.svn.sourceforge.net/brlcad/?rev=52499&view=rev
Author: r_weiss
Date: 2012-09-18 21:22:33 +0000 (Tue, 18 Sep 2012)
Log Message:
-----------
Created a new function "nmg_plot_open_edges" within file "nmg_bool.c". This
function finds open edges within an NMG object and creates a UNIX plot file
containing these edges. Updated function "nmg_bool" to call this new function
when a boolean operation fails due to dangling faces.
Modified Paths:
--------------
brlcad/trunk/src/librt/primitives/nmg/nmg_bool.c
Modified: brlcad/trunk/src/librt/primitives/nmg/nmg_bool.c
===================================================================
--- brlcad/trunk/src/librt/primitives/nmg/nmg_bool.c 2012-09-18 19:57:10 UTC
(rev 52498)
+++ brlcad/trunk/src/librt/primitives/nmg/nmg_bool.c 2012-09-18 21:22:33 UTC
(rev 52499)
@@ -42,6 +42,7 @@
#include "vmath.h"
#include "nmg.h"
#include "raytrace.h"
+#include "plot3.h"
extern int nmg_class_nothing_broken;
@@ -56,6 +57,99 @@
int debug_file_count=0;
+
+/**
+ * N M G _ P L O T _ O P E N _ E D G E S
+ *
+ * Find open edges, if any, in NMG object pointed to by magic_p and
+ * create a UNIX plot file containing these edges.
+ *
+ * The prefix string will be appended to the front of the file name
+ * of the plot file.
+ *
+ * Returns -
+ * 0 No open edges, no plot file created.
+ * !0 Has open edges, plot file created.
+ */
+size_t
+nmg_plot_open_edges(const uint32_t *magic_p, const char *prefix)
+{
+ struct loopuse *lu;
+ struct edgeuse *eu;
+ const struct edgeuse *eur;
+ struct faceuse *newfu;
+ struct bu_ptbl faces;
+ struct face *fp;
+ struct faceuse *fu, *fu1, *fu2;
+ int done;
+ const char *manifolds = NULL;
+ point_t pt1, pt2;
+ size_t i;
+ FILE *plotfp = NULL;
+ struct bu_vls plot_file_name = BU_VLS_INIT_ZERO;
+ size_t cnt;
+
+ bu_ptbl_init(&faces, 64, "faces buffer");
+ nmg_face_tabulate(&faces, magic_p);
+
+ cnt = 0;
+ for (i = 0; i < (size_t)BU_PTBL_END(&faces) ; i++) {
+ fp = (struct face *)BU_PTBL_GET(&faces, i);
+ NMG_CK_FACE(fp);
+ fu = fu1 = fp->fu_p;
+ NMG_CK_FACEUSE(fu1);
+ fu2 = fp->fu_p->fumate_p;
+ NMG_CK_FACEUSE(fu2);
+ done = 0;
+ while (!done) {
+ NMG_CK_FACEUSE(fu);
+ for (BU_LIST_FOR(lu, loopuse, &fu->lu_hd)) {
+ NMG_CK_LOOPUSE(lu);
+ if (BU_LIST_FIRST_MAGIC(&lu->down_hd) == NMG_EDGEUSE_MAGIC) {
+ for (BU_LIST_FOR(eu, edgeuse, &lu->down_hd)) {
+ NMG_CK_EDGEUSE(eu);
+ eur = nmg_radial_face_edge_in_shell(eu);
+ newfu = eur->up.lu_p->up.fu_p;
+ while (manifolds &&
+ NMG_MANIFOLDS(manifolds, newfu) &
+ NMG_2MANIFOLD &&
+ eur != eu->eumate_p) {
+ eur = nmg_radial_face_edge_in_shell(eur->eumate_p);
+ newfu = eur->up.lu_p->up.fu_p;
+ }
+ if (eur == eu->eumate_p) {
+ VMOVE(pt1, eu->vu_p->v_p->vg_p->coord);
+ VMOVE(pt2, eu->eumate_p->vu_p->v_p->vg_p->coord);
+ if (!plotfp) {
+ bu_vls_sprintf(&plot_file_name, "%s.%zu.pl",
prefix, magic_p);
+ if ((plotfp =
fopen(bu_vls_addr(&plot_file_name), "wb")) == (FILE *)NULL) {
+ bu_log("nmg_plot_open_edges(): Unable to
create plot file (%s)\n", bu_vls_addr(&plot_file_name));
+ bu_bomb("nmg_plot_open_edges(): Unable to
create plot file.");
+ }
+ }
+ pdv_3line(plotfp, pt1, pt2);
+ cnt++;
+ }
+ }
+ }
+ }
+ if (fu == fu1) fu = fu2;
+ if (fu == fu2) done = 1;
+ };
+
+ }
+
+ if (plotfp) {
+ (void)fclose(plotfp);
+ bu_vls_free(&plot_file_name);
+ }
+
+ bu_ptbl_free(&faces);
+
+ return cnt;
+}
+
+
static void
nmg_dangling_handler(uint32_t *longp, genptr_t state, int UNUSED(unused))
{
@@ -966,6 +1060,7 @@
}
} else {
if (nmg_has_dangling_faces((uint32_t *)rA, (char *)NULL)) {
+ (void)nmg_plot_open_edges((const uint32_t *)rA, "open_edges");
bu_bomb("nmg_bool(): Dangling faces detected in rA after
boolean\n");
}
}
@@ -1521,3 +1616,4 @@
* End:
* ex: shiftwidth=4 tabstop=8
*/
+
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