--- gnuconvf.c.orig	Fri Apr 30 23:11:38 1999
+++ gnuconvf.c	Fri Jul 23 12:23:36 1999
@@ -28,14 +28,20 @@
 int size;
 int zfix = FALSE;  /* Flag to use zfix */
 int zmode = FALSE; /* Flag to use zzero */
+
+int dump=0;
+
 zzero=0.0; /* Introduce zzero */
 
+if (!dump) {
 sipp_init();
 mode=PHONG;
 size=256;
+}
 ratio=1.0; /* Multiply z-values by ratio by n.matuda */
 
-while ((c=getopt(argc,argv,"pgfls:i:r:z:m:M:")) !=EOF)
+input_file[0]='0';
+while ((c=getopt(argc,argv,"pgfls:i:r:z:m:M:d")) !=EOF)
   {
     switch (c) {
           case 'p':
@@ -83,10 +89,16 @@
             zfix = TRUE;
             break;
 
+         case 'd':
+	    dump=1;
+	    break;
 	 }
   }
 
+if (input_file[0]!='0')
 input_fd=fopen(input_file,"r"); /* Use input_file by n.matuda */
+else
+input_fd=stdin;
 
 for(;0==feof(input_fd);)
  {
@@ -164,12 +176,13 @@
 //  by n.matuda.
 
 feldgroesse=(int)(sqrt((double)ii));
-printf("Koordinatenanzahl=%i,Feld ist %i*%i\n",ii,feldgroesse,feldgroesse);
+if (!dump) printf("Koordinatenanzahl=%i,Feld ist %i*%i\n",ii,feldgroesse,feldgroesse);
 for (zeile=1;zeile<=feldgroesse-1;zeile++)
   {
    for (spalte=1;spalte<=feldgroesse-1;spalte++)
      {
        ru=zeile*feldgroesse+spalte;
+       if (!dump) {
        vertex_push(feld[ru][0],feld[ru][1],feld[ru][2]);
        vertex_push(feld[ru-1][0],feld[ru-1][1],feld[ru-1][2]);
        vertex_push(feld[ru-1-feldgroesse][0],feld[ru-1-feldgroesse][1],feld[ru-1-feldgroesse][2]);
@@ -180,8 +193,20 @@
        vertex_push(feld[ru-1-feldgroesse][0],feld[ru-1-feldgroesse][1],feld[ru-1-feldgroesse][2]);
        vertex_push(feld[ru][0],feld[ru][1],feld[ru][2]);
        polygon_push();
+       } else {
+       printf("%6.3f %6.3f %6.3f\n", feld[ru][0],feld[ru][1],feld[ru][2]);
+       printf("%6.3f %6.3f %6.3f\n", feld[ru-1][0],feld[ru-1][1],feld[ru-1][2]);
+       printf("%6.3f %6.3f %6.3f\n", feld[ru-1-feldgroesse][0],feld[ru-1-feldgroesse][1],feld[ru-1-feldgroesse][2]);
+       printf("\n");
+       printf("%6.3f %6.3f %6.3f\n", feld[ru][0],feld[ru][1],feld[ru][2]);
+       printf("%6.3f %6.3f %6.3f\n", feld[ru-1-feldgroesse][0],feld[ru-1-feldgroesse][1],feld[ru-1-feldgroesse][2]);
+       printf("%6.3f %6.3f %6.3f\n", feld[ru-feldgroesse][0],feld[ru-feldgroesse][1],feld[ru-feldgroesse][2]);
+       printf("\n");
+       }
      }  
  }
+if (dump) exit(0);
+
 mysurface= surface_basic_create(0.4, 0.5,0.5,0.8, 0.6, 0.1 ,1.0,1.0,1.0);
 myobjekt=object_create();
 object_add_surface(myobjekt,mysurface);