Revision: 8851
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=8851&view=rev
Author: leejjoon
Date: 2010-12-29 08:29:11 +0000 (Wed, 29 Dec 2010)
Log Message:
-----------
pdf backend support affine-transformed image
Modified Paths:
--------------
trunk/matplotlib/lib/matplotlib/backends/backend_pdf.py
Modified: trunk/matplotlib/lib/matplotlib/backends/backend_pdf.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/backends/backend_pdf.py 2010-12-29
05:21:56 UTC (rev 8850)
+++ trunk/matplotlib/lib/matplotlib/backends/backend_pdf.py 2010-12-29
08:29:11 UTC (rev 8851)
@@ -1386,15 +1386,42 @@
def get_image_magnification(self):
return self.image_dpi/72.0
- def draw_image(self, gc, x, y, im):
+ def option_scale_image(self):
+ """
+ pdf backend support arbitrary scaling of image.
+ """
+ return True
+
+ def draw_image(self, gc, x, y, im, dx=None, dy=None, transform=None):
self.check_gc(gc)
h, w = im.get_size_out()
- h, w = 72.0*h/self.image_dpi, 72.0*w/self.image_dpi
+
+ if dx is None:
+ w = 72.0*w/self.image_dpi
+ else:
+ w = dx
+
+ if dy is None:
+ h = 72.0*h/self.image_dpi
+ else:
+ h = dy
+
imob = self.file.imageObject(im)
- self.file.output(Op.gsave, w, 0, 0, h, x, y, Op.concat_matrix,
- imob, Op.use_xobject, Op.grestore)
+ if transform is None:
+ self.file.output(Op.gsave,
+ w, 0, 0, h, x, y, Op.concat_matrix,
+ imob, Op.use_xobject, Op.grestore)
+ else:
+ tr1, tr2, tr3, tr4, tr5, tr6 = transform.to_values()
+
+ self.file.output(Op.gsave,
+ tr1, tr2, tr3, tr4, tr5, tr6, Op.concat_matrix,
+ w, 0, 0, h, x, y, Op.concat_matrix,
+ imob, Op.use_xobject, Op.grestore)
+
+
def draw_path(self, gc, path, transform, rgbFace=None):
self.check_gc(gc, rgbFace)
self.file.writePath(
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