[Plplot-devel] Retrieving a plot from plplot without first writing to disk

[Mike H. <mi...@sy...>]

I would like to write a function in C that creates a PNG plot using
plplot and then returns a gdImagePtr representing that image.

After a couple days of investigation, I can only come up with the
following obvious solution:

gdImagePtr im_in;
FILE * outfile;
outfile = fopen("output.png", "wb");
plsfile(outfile);
plinit();

/* plot making code .... */

plend();
outfile = fopen("output.png", "rb");
im_in = gdImageCreateFromPng(outfile);
close(outfile);
return im_in;

Is there a way to accomplish this result without the intermediate step
of writing the image file to disk?

Thanks very much,
Mike