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(*
Copyright 2008, 2009 Hezekiah M. Carty
This file is part of PLplot.
PLplot is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
PLplot is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PLplot. If not, see <http://www.gnu.org/licenses/>.
*)
(* This is a Cairo-only example, meant as an illustration and test of the
technique used in the Plcairo.rasterize function. *)
open Cairo
let () =
let img =
Cairo.image_surface_create
Cairo.FORMAT_ARGB32 ~width:100 ~height:100
in
let outfile = open_out "test.ps" in
let ps =
Cairo_ps.surface_create_for_channel outfile
~width_in_points:1000.0 ~height_in_points:1000.0
in
let ct_img = Cairo.create img in
let ct_ps = Cairo.create ps in
(* Draw something on the image *)
Cairo.rectangle ~x:10.0 ~y:10.0 ~width:80.0 ~height:80.0 ct_img;
Cairo.fill ct_img;
Cairo.stroke ct_img;
(* Blit the image out to the Postscript. *)
Cairo.set_source_surface ct_ps img 0.0 0.0;
Cairo.paint ct_ps;
Cairo.surface_finish ps;
(* Save the files *)
Cairo_png.surface_write_to_file img "test.png";
close_out outfile;
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