Changeset 503

Timestamp:

11/30/2009 03:53:06 PM (2 years ago)

Author:

powell

Message:

Allow NULL boundary argument to display nothing.

Files:

• trunk/matml/src/ternary/geomview.c (modified) (4 diffs)

trunk/matml/src/ternary/geomview.c

@@ -191 +191 @@
   visual_point *points Point coordinates and colors.
 
-  phase_boundary theboundary Phase boundary object to display.
+  phase_boundary theboundary Phase boundary object to display, or NULL to
+  display nothing.
   ++++++++++++++++++++++++++++++++++++++*/
 
@@ -198 +199 @@
  int npoints, visual_point *points, phase_boundary *theboundary)
 {
-  int i, c=theboundary->compos;
+  int i, n_edges=0, c;
+
+  if (theboundary)
+    {
+      n_edges = theboundary->n_edges;
+      c = theboundary->compos;
+    }
+  else
+    npoints = 0;
 
   fprintf (geompipe, "(geometry \"%s\" { : %s })\n", name, label);
   fprintf (geompipe, "(read geometry { define %s \n", label);
   fprintf (geompipe, "appearance { %s }\nCOFF\n", appearance);
-  fprintf (geompipe, "%d %d 0\n", npoints, theboundary->n_edges);
+  fprintf (geompipe, "%d %d 0\n", npoints, n_edges);
 
 #ifdef DEBUG
@@ -209 +218 @@
   printf ("(read geometry { define %s \n", label);
   printf ("appearance { %s }\nCOFF\n", appearance);
-  printf ("%d %d 0\n", npoints, theboundary->n_edges);
+  printf ("%d %d 0\n", npoints, n_edges);
 #endif
 
@@ -223 +232 @@
 #endif
     }
-  for (i=0; i<theboundary->n_edges; i++)
+  for (i=0; i<n_edges; i++)
     {
       fprintf (geompipe, "3 %d %d %d\n", theboundary->edges [c*i],