Thread: [Matplotlib-users] Question about finance.py example.

In the finance .py example, the plots that use collections have integers
plotted on the x-axis.
How do you get dates for x-axis labels?
Bill

Hi,
I've got a problem some days ago doing saving the plots with certain resolution (dpi)
under windows. In this maillist I've found that in some cases dpi parameter is defined
in the source code. Moreover, there are more then _one_ definition of that parameter in
matplotlib. Can we get rid of this behaviour? It's quite confusing till one starts browse
the code by his own. For example I see absolutely no reasons to have more then one
such a parameter. And it should be defined only one time in the matplotlibrc.
Look at this. Is it not ugly ???
backend_bases.py:
 def print_figure(self, filename, dpi=300, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs):
backends/backend_agg2.py:
 def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs):
backends/backend_agg.py:
 def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs):
backends/backend_cairo.py:
class FigureCanvasCairo (FigureCanvasBase):
 def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs):
 def _save_ps_pdf (self, figure, filename, ext, orientation, **kwargs):
 orientation = kwargs.get('orientation', 'portrait')
 dpi = 72
backends/backend_emf.py:
 hackoffsetper300dpi=10
 xhack=math.sin(angle*math.pi/180.0)*hackoffsetper300dpi*self.dpi/300.0
 yhack=math.cos(angle*math.pi/180.0)*hackoffsetper300dpi*self.dpi/300.0
 def print_figure(self, filename, dpi=300, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs):
backends/backend_fltkagg.py:
 def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs):
backends/backend_gdk.py:
 def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs):
backends/backend_gd.py:
PIXELS_PER_INCH = 96 # constant GD uses for screen DPI
class FigureCanvasGD(FigureCanvasBase):
 def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs):
backends/backend_gtkagg.py:
 def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs):
backends/backend_gtk.py:
 def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs):
backends/backend_paint.py:
#paint/font.c defined dpi as 96
PIXELS_PER_INCH = 96 # a constant used to scale text with dpi
 def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
 orientation='portrait, '**kwargs):
backends/backend_pdf.py:
 def print_figure(self, filename, dpi=72, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs):
 self.figure.dpi.set(72)
backends/backend_ps.py:
 def print_figure(self, outfile, dpi=72, facecolor='w', edgecolor='w',
 orientation='portrait', papertype=None)
 self.figure.dpi.set(72) # ignore the dpi kwarg
backends/backend_qt4agg.py:
 def print_figure( self, filename, dpi=150, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs ):
backends/backend_qtagg.py:
 def print_figure( self, filename, dpi=150, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs ):
backends/backend_svg.py:
	self.figure.dpi.set(72)
backends/backend_template.py:
 def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs):
backends/backend_tkagg.py:
 def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs):
 self.canvas.print_figure(fname, dpi=300)
backends/backend_wxagg.py:
 def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs):
backends/backend_wx.py:
 def print_figure(self, filename, dpi=150, facecolor='w', edgecolor='w',
 orientation='portrait', **kwargs):
	ps.figure.dpi.set(72)
__init__.py:
 'figure.dpi' : [ 80, validate_float], # DPI
 'savefig.dpi' : [ 150, validate_float], # DPI
 'ps.distiller.res' : [6000, validate_int], # dpi
mathtext.py:
 w, h, fonts = math_parse_s_ft2font(s, dpi=27, fontsize=12, angle=0)
 if get_backend()=='PS': dpi = 72
matplotlibrc:
	figure.dpi : 80 # figure dots per inch
	savefig.dpi : 100 # figure dots per inch
	ps.distiller.res : 6000 # dpi
It is just a mess! Please do something with that!
-- 
Zack