Index: trunk/psModules/src/objects/pmSourceVisual.c
===================================================================
--- trunk/psModules/src/objects/pmSourceVisual.c	(revision 36623)
+++ trunk/psModules/src/objects/pmSourceVisual.c	(revision 36834)
@@ -545,7 +545,31 @@
     psFree (model);
 
+    bool dumpData = false;
+
     // pause and wait for user input:
     // continue, save (provide name), ??
-    pmVisualAskUser(&plotPSF);
+retry:
+    pmVisualAskUserOrDump(&plotPSF, &dumpData);
+    if (dumpData) {
+      char name[128];
+      fprintf (stderr, "filename: ");
+      int status = fscanf (stdin, "%127s", name);
+      if (status != 1) {
+	fprintf (stderr, "odd response\n");
+	goto retry;
+      }
+
+      FILE *f = fopen (name, "w");
+      if (!f) {
+	fprintf (stderr, "cannot open %s for output\n", name);
+	goto retry;
+      }
+      for (int i = 0; i < x->n; i++) {
+        float vModel = pmTrend2DEval (trend, x->data.F32[i], y->data.F32[i]);
+	fprintf (f, "%f %f %f %f %d\n", x->data.F32[i], y->data.F32[i], param->data.F32[i], vModel, mask->data.PS_TYPE_VECTOR_MASK_DATA[i]);
+      }
+      fclose (f);
+      goto retry;
+    }
 
     return true;