R/create.gif.R

In BoutrosLab.plotting.general: Functions to Create Publication-Quality Plots

# The BoutrosLab plotting.general package is copyright (c) 2011 Ontario Institute for Cancer Research (OICR)
# This package and its accompanying libraries is free software; you can redistribute it and/or modify it under the terms of the GPL
# (either version 1, or at your option, any later version) or the Artistic License 2.0.  Refer to LICENSE for the full license text.
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### FUNCTION TO CREATE GIF  #######################################################################
create.gif <- function(exec.func, parameters, number.of.frames, delay = 40, filename) {
	png(filename = 'writeGifTemp%03d.png');
	for (i in (1:number.of.frames)) {
		print(do.call(exec.func, parameters[[i]]));
		}
	dev.off();
	# convert pngs to one gif using ImageMagick
	system(paste(paste('convert -delay ', delay), paste(' writeGifTemp* ', filename)));
	# cleaning up
	file.remove(list.files(pattern = 'writeGifTemp'));
	}