Index: trunk/Ohana/src/opihi/cmd.data/gridify.c
===================================================================
--- trunk/Ohana/src/opihi/cmd.data/gridify.c	(revision 20936)
+++ trunk/Ohana/src/opihi/cmd.data/gridify.c	(revision 31450)
@@ -4,5 +4,5 @@
 
   int i, Nx, Ny, Xb, Yb, Normalize, N;
-  float Xmin, Xmax, dX, Ymin, Ymax, dY;
+  float Xmin, Xmax, dX, Ymin, Ymax, dY, initValue;
   float *buf, *val;
   int *Nval;
@@ -15,4 +15,11 @@
     remove_argument (N, &argc, argv);
     Normalize = FALSE;
+  }
+
+  initValue = 0.0;
+  if ((N = get_argument (argc, argv, "-init-value"))) {
+    remove_argument (N, &argc, argv);
+    initValue = atof(argv[N]);
+    remove_argument (N, &argc, argv);
   }
 
@@ -69,7 +76,7 @@
   buf = (float *) bf[0].matrix.buffer;
   for (i = 0; i < Nx*Ny; i++) {
+    buf[i] = initValue;
     if (Normalize) {
       if (Nval[i] == 0) {
-	buf[i] = 0;
 	continue;
       }