Revision: 5879
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=5879&view=rev
Author: jdh2358
Date: 2008-07-25 23:45:01 +0000 (Fri, 25 Jul 2008)
Log Message:
-----------
fix for ps renderer dpi/imagedpi confusion
Modified Paths:
--------------
trunk/matplotlib/examples/pylab_examples/image_demo.py
trunk/matplotlib/lib/matplotlib/backends/backend_ps.py
trunk/matplotlib/lib/matplotlib/collections.py
trunk/matplotlib/lib/matplotlib/text.py
Modified: trunk/matplotlib/examples/pylab_examples/image_demo.py
===================================================================
--- trunk/matplotlib/examples/pylab_examples/image_demo.py 2008-07-25
23:22:26 UTC (rev 5878)
+++ trunk/matplotlib/examples/pylab_examples/image_demo.py 2008-07-25
23:45:01 UTC (rev 5879)
@@ -14,5 +14,6 @@
im = plt.imshow(Z, interpolation='bilinear', cmap=cm.gray,
origin='lower', extent=[-3,3,-3,3])
+plt.savefig('test.ps', dpi=300)
plt.show()
Modified: trunk/matplotlib/lib/matplotlib/backends/backend_ps.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/backends/backend_ps.py 2008-07-25
23:22:26 UTC (rev 5878)
+++ trunk/matplotlib/lib/matplotlib/backends/backend_ps.py 2008-07-25
23:45:01 UTC (rev 5879)
@@ -126,7 +126,12 @@
fontd = maxdict(50)
afmfontd = maxdict(50)
- def __init__(self, width, height, pswriter, dpi=72):
+ def __init__(self, width, height, pswriter, imagedpi=72):
+ """
+ Although postscript itself is dpi independent, we need to
+ imform the image code about a requested dpi to generate high
+ res images and them scale them before embeddin them
+ """
RendererBase.__init__(self)
self.width = width
self.height = height
@@ -134,7 +139,7 @@
if rcParams['text.usetex']:
self.textcnt = 0
self.psfrag = []
- self.dpi = dpi
+ self.imagedpi = imagedpi
# current renderer state (None=uninitialised)
self.color = None
@@ -145,7 +150,7 @@
self.fontname = None
self.fontsize = None
self.hatch = None
- self.image_magnification = dpi/72.0
+ self.image_magnification = imagedpi/72.0
self._clip_paths = {}
self._path_collection_id = 0
@@ -857,15 +862,15 @@
else: raise RuntimeError('Orientation must be "portrait" or
"landscape"')
self.figure.set_dpi(72) # Override the dpi kwarg
- dpi = kwargs.get("dpi", 72)
+ imagedpi = kwargs.get("dpi", 72)
facecolor = kwargs.get("facecolor", "w")
edgecolor = kwargs.get("edgecolor", "w")
if rcParams['text.usetex']:
- self._print_figure_tex(outfile, format, dpi, facecolor, edgecolor,
+ self._print_figure_tex(outfile, format, imagedpi, facecolor,
edgecolor,
orientation, isLandscape, papertype)
else:
- self._print_figure(outfile, format, dpi, facecolor, edgecolor,
+ self._print_figure(outfile, format, imagedpi, facecolor, edgecolor,
orientation, isLandscape, papertype)
def _print_figure(self, outfile, format, dpi=72, facecolor='w',
edgecolor='w',
@@ -939,7 +944,7 @@
self.figure.set_edgecolor(edgecolor)
self._pswriter = StringIO()
- renderer = RendererPS(width, height, self._pswriter, dpi=dpi)
+ renderer = RendererPS(width, height, self._pswriter, imagedpi=dpi)
self.figure.draw(renderer)
self.figure.set_facecolor(origfacecolor)
@@ -1050,7 +1055,7 @@
self.figure.set_edgecolor(edgecolor)
self._pswriter = StringIO()
- renderer = RendererPS(width, height, self._pswriter, dpi=dpi)
+ renderer = RendererPS(width, height, self._pswriter, imagedpi=dpi)
self.figure.draw(renderer)
self.figure.set_facecolor(origfacecolor)
Modified: trunk/matplotlib/lib/matplotlib/collections.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/collections.py 2008-07-25 23:22:26 UTC
(rev 5878)
+++ trunk/matplotlib/lib/matplotlib/collections.py 2008-07-25 23:45:01 UTC
(rev 5879)
@@ -222,7 +222,7 @@
"""
Set the offsets for the collection. *offsets* can be a scalar
or a sequence.
-
+
ACCEPTS: float or sequence of floats
"""
offsets = np.asarray(offsets, np.float_)
@@ -603,7 +603,7 @@
if self._sizes is not None:
self._transforms = [
transforms.Affine2D().scale(
- (np.sqrt(x) * renderer.dpi / 72.0))
+ (np.sqrt(x) * self.figure.dpi / 72.0))
for x in self._sizes]
return Collection.draw(self, renderer)
@@ -680,7 +680,7 @@
# in points^2
self._transforms = [
transforms.Affine2D().rotate(-self._rotation).scale(
- (np.sqrt(x) * renderer.dpi / 72.0) / np.sqrt(np.pi))
+ (np.sqrt(x) * self.figure.dpi / 72.0) / np.sqrt(np.pi))
for x in self._sizes]
return Collection.draw(self, renderer)
@@ -877,7 +877,7 @@
# in points^2
self._transforms = [
transforms.Affine2D().scale(
- (np.sqrt(x) * renderer.dpi / 72.0) / np.sqrt(np.pi))
+ (np.sqrt(x) * self.figure.dpi / 72.0) / np.sqrt(np.pi))
for x in self._sizes]
return Collection.draw(self, renderer)
Modified: trunk/matplotlib/lib/matplotlib/text.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/text.py 2008-07-25 23:22:26 UTC (rev
5878)
+++ trunk/matplotlib/lib/matplotlib/text.py 2008-07-25 23:45:01 UTC (rev
5879)
@@ -400,7 +400,7 @@
return (x, y, self._text, self._color,
self._verticalalignment, self._horizontalalignment,
hash(self._fontproperties), self._rotation,
- self._renderer.dpi, id(self._renderer)
+ self.figure.dpi, id(self._renderer)
)
def get_text(self):
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