ask if we should remove the temp files

demos/anim.script

 // A demo script to save mpeg or gif animations of post-processing views
 
-oldw = General.GraphicsWidth;
-oldh = General.GraphicsHeight;
+all = GetValue("Animate one view at a time or all views together?
 
-all = GetValue("Animate one view at a time, or all views together (0=one, 1=all)?", 1) ;
+0: one at a time, 1: all together", 1) ;
+
+oldw = General.GraphicsWidth;
 General.GraphicsWidth = GetValue("Width of animation?", 640); 
+
+oldh = General.GraphicsHeight;
 General.GraphicsHeight = GetValue("Height of animation?", 640) ;
-method = GetValue("Animation method? (0=mpeg_encode, 1=mencoder, 2=whirlgif)?", 0) ;
+
+method = GetValue("Animation method?
+
+0: mpeg_encode (MPEG1), 1: mencoder (MPEG4), 2: whirlgif (GIF89)", 0) ;
 MPEG_ENCODE = 0;
 MENCODER = 1;
 WHIRLGIF = 2;
 
 Print.JpegQuality = 100;
 
-// Clean-up temp files from previous run
-If(method == WHIRLGIF)
-  System "rm -f /tmp/tmp*.gif" ;
-EndIf
-If(method == MPEG_ENCODE || method == MENCODER)
-  System "rm -f /tmp/tmp*.jpg /tmp/tmp.par" ;
-EndIf
-
 If(all)
   For i In {1:PostProcessing.NbViews}
     View[i-1].TimeStep = 0;
   EndFor
   // Use the first view as the reference
-  frame = View[0].NbTimeStep;
   For index In {1:View[0].NbTimeStep}
     Draw;
     If(method == WHIRLGIF)
@@ -102,5 +99,19 @@ If(method == MPEG_ENCODE)
   System "mpeg_encode /tmp/tmp.par" ;
 EndIf
 
+// Clean-up temp files?
+cleanup = GetValue("Remove temporary files?
+
+(The final animation has been saved in /tmp/animation.{gif.mpg})", 1);
+
+If(cleanup)
+  If(method == WHIRLGIF)
+    System "rm -f /tmp/tmp*.gif" ;
+  EndIf
+  If(method == MPEG_ENCODE || method == MENCODER)
+    System "rm -f /tmp/tmp*.jpg /tmp/tmp.par" ;
+  EndIf
+EndIf
+
 General.GraphicsWidth = oldw;
 General.GraphicsHeight = oldh;