Writebitmap Command Example

Details

Action

Saves the image of the selected Graph2D window to disk. The image is saved in compressed form as RLE-4 encoded bitmap. This is useful for saving pictures of computed images under program control so that they may be played back later as animations.

This example defines a string-concatenation function called concat, then builds the string argument for writebitmap.

make concat(st s1, st s2) pack(list(s1,s2));

make filename concat(concat(prefix,frame),".bmp");

writebitmap filename;

Or, more simply,

writebitmap "Mybitmap.bmp"