matplotlib-users Mailing List for matplotlib

I tried your simple example and I have indeed the following crash when I 
tried to print preview :
---------------------------------------------------------------------------
NotImplementedError                       Traceback (most recent call last)

/usr/lib/python2.5/site-packages/matplotlib/backends/backend_wx.py in 
OnPrintPage(self, page)
   2057
   2058         renderer  = RendererWx(self.canvas.bitmap, 
self.canvas.figure.dpi)
-> 2059         self.canvas.figure.draw(renderer)
   2060         self.canvas.bitmap.SetWidth(  
int(self.canvas.bitmap.GetWidth() * vscale))
   2061         self.canvas.bitmap.SetHeight( 
int(self.canvas.bitmap.GetHeight()* vscale))

/usr/lib/python2.5/site-packages/matplotlib/figure.py in draw(self, 
renderer)
    610
    611         # render the axes
--> 612         for a in self.axes: a.draw(renderer)
    613
    614         # render the figure text

/usr/lib/python2.5/site-packages/matplotlib/axes.py in draw(self, 
renderer, inframe)
   1340
   1341         for zorder, i, a in dsu:
-> 1342             a.draw(renderer)
   1343
   1344         self.transData.thaw()  # release the lazy objects

/usr/lib/python2.5/site-packages/matplotlib/axis.py in draw(self, 
renderer, *args, **kwargs)
    591             tick.set_label1(label)
    592             tick.set_label2(label)
--> 593             tick.draw(renderer)
    594             if tick.label1On and tick.label1.get_visible():
    595                 extent = tick.label1.get_window_extent(renderer)

/usr/lib/python2.5/site-packages/matplotlib/axis.py in draw(self, renderer)
    168             if self.tick2On: self.tick2line.draw(renderer)
    169
--> 170         if self.label1On: self.label1.draw(renderer)
    171         if self.label2On: self.label2.draw(renderer)
    172

/usr/lib/python2.5/site-packages/matplotlib/text.py in draw(self, renderer)
    773     def draw(self, renderer):
    774         self.update_coords(renderer)
--> 775         Text.draw(self, renderer)
    776         if self.get_dashlength() > 0.0:
    777             self.dashline.draw(renderer)

/usr/lib/python2.5/site-packages/matplotlib/text.py in draw(self, renderer)
    325
    326                 renderer.draw_tex(gc, x, y, line,
--> 327                                   self._fontproperties, angle)
    328             return
    329

/usr/lib/python2.5/site-packages/matplotlib/backend_bases.py in 
draw_tex(self, gc, x, y, s, prop, angle, ismath)
    381
    382     def draw_tex(self, gc, x, y, s, prop, angle, ismath='TeX!'):
--> 383         raise NotImplementedError
    384
    385     def draw_text(self, gc, x, y, s, prop, angle, ismath=False):

NotImplementedError:


Not familiar enough with all this to be of much help here...
Johann

Hello,

I would like to make a plot showing data points and a line, where the
legend contains a single point for the data points, and a small line
segment for the line. However, with numpoints = 1, the line is not
shown, as can be seen in the attached figure numpoints1.png. The second
attached figure, desired_legend.png, shows how I would like the legend
to look. I have also attached a simple script that demonstrates the
problem with numpoints=1.

Is there any way to create the legend as I would like it?

Thank you,

Paul

I have developed a plotter software using "WXAgg". ( matplotlib 0.90.1)
It works fine on Windows, but I found some problems on Linux about printing.

Printing problems on Red Hat Linux 5  or Fedra Core 6

  1. You cannot set orientation to LANDSCAPE, it seems "SetOrientation" does 
not work.
  2. When you set  LANDSCAPE manually, only lower half part will be printed.
  3. Printing quality  is far much worse than Windows's printing.

Please try my simple sample program as below.

Noriko Minakawa

--------------------------------------------------------------
import wx
import os
import matplotlib
matplotlib.use('WXAgg')
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigCanvas
from matplotlib.figure import Figure
import matplotlib.numerix as numpy

class PlotFrame(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, -1, "Test Printing with WX Backend")
        self.fig   = Figure(None, 100)
        self.canvas= FigCanvas(self, -1, self.fig)
        self.axes  = self.fig.add_axes([0.15,0.15,0.75,0.75])
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.canvas, 1, wx.LEFT|wx.TOP|wx.GROW)
        self.Fit()
        self.Plot_Data()

    def Print_Data(self):
        self.canvas.printerData.SetPaperId(wx.PAPER_A4)
        self.canvas.printerData.SetOrientation(wx.LANDSCAPE)
        dpi = self.canvas.figure.dpi.get()
        self.canvas.figure.dpi.set(200)
        self.canvas.Printer_Print()
        self.canvas.figure.dpi.set(dpi)
        self.canvas.draw()

    def Plot_Data(self):
        t = numpy.arange(0.0,5.0,0.01)
        s = numpy.sin(2.0*numpy.pi*t)
        c = numpy.cos(0.4*numpy.pi*t)
        self.axes.plot(t,s)
        self.axes.plot(t,c)

if __name__ == '__main__':
    app = wx.PySimpleApp()
    fig = PlotFrame()
    fig.Show(True)
    fig.Print_Data()
    app.MainLoop()
----------------------------------------------------------------