matplotlib-users Mailing List for matplotlib

Michael,
Sorry for the delay. Adding:
#include <limits>
to the top of path.cpp in rev5055 helps - most of the errors have disappeared, but I still get this:
running build_ext
building 'matplotlib._path' extension
C:\bin\Microsoft Visual Studio .NET 2003\Vc7\bin\cl.exe /c /nologo /Ox /MD /W3 /GX /DNDEBUG -IC:\bin\Python25\lib\site-p
ackages\numpy\core\include -Iwin32_static\include -I. -IC:\bin\Python25\lib\site-packages\numpy\core\include -Isrc -Iagg
24/include -I. -IC:\bin\Python25\include -IC:\bin\Python25\PC /Tpsrc/path.cpp /Fobuild\temp.win32-2.5\Release\src/path.o
bj
path.cpp
c:\home\mspacek\Desktop\Work\matplotlib\src\agg_py_path_iterator.h(98) : warning C4800: 'PyArrayObject *' : forcing valu
e to bool 'true' or 'false' (performance warning)
src\path.cpp(340) : warning C4800: 'long' : forcing value to bool 'true' or 'false' (performance warning)
src\path.cpp(535) : warning C4800: 'long' : forcing value to bool 'true' or 'false' (performance warning)
src\path.cpp(835) : warning C4800: 'long' : forcing value to bool 'true' or 'false' (performance warning)
src\path.cpp(1001) : error C2146: syntax error : missing ')' before identifier 'or'
src\path.cpp(1000) : error C3861: 'not': identifier not found, even with argument-dependent lookup
src\path.cpp(1003) : error C2059: syntax error : ')'
error: command '"C:\bin\Microsoft Visual Studio .NET 2003\Vc7\bin\cl.exe"' failed with exit status 2
Looks like VS2003 is picky about using not and or. So I replaced them with ! and ||, which helped. Now I get this error:
running build_ext
building 'matplotlib._path' extension
C:\bin\Microsoft Visual Studio .NET 2003\Vc7\bin\cl.exe /c /nologo /Ox /MD /W3 /GX /DNDEBUG -IC:\bin\Python25\lib\site-p
ackages\numpy\core\include -Iwin32_static\include -I. -IC:\bin\Python25\lib\site-packages\numpy\core\include -Isrc -Iagg
24/include -I. -IC:\bin\Python25\include -IC:\bin\Python25\PC /Tpsrc/path.cpp /Fobuild\temp.win32-2.5\Release\src/path.o
bj
path.cpp
c:\home\mspacek\Desktop\Work\matplotlib\src\agg_py_path_iterator.h(98) : warning C4800: 'PyArrayObject *' : forcing valu
e to bool 'true' or 'false' (performance warning)
src\path.cpp(340) : warning C4800: 'long' : forcing value to bool 'true' or 'false' (performance warning)
src\path.cpp(535) : warning C4800: 'long' : forcing value to bool 'true' or 'false' (performance warning)
src\path.cpp(835) : warning C4800: 'long' : forcing value to bool 'true' or 'false' (performance warning)
c:\home\mspacek\Desktop\Work\matplotlib\src\agg_py_path_iterator.h(160) : error C3861: 'round': identifier not found, ev
en with argument-dependent lookup
 c:\home\mspacek\Desktop\Work\matplotlib\src\agg_py_path_iterator.h(150) : while compiling class-template member
function 'unsigned int SimplifyPath<VertexSource>::vertex(double *,double *)'
 with
 [
 VertexSource=transformed_path_t
 ]
 src\path.cpp(1115) : see reference to class template instantiation 'SimplifyPath<VertexSource>' being compiled
 with
 [
 VertexSource=transformed_path_t
 ]
c:\home\mspacek\Desktop\Work\matplotlib\src\agg_py_path_iterator.h(161) : error C3861: 'round': identifier not found, ev
en with argument-dependent lookup
c:\home\mspacek\Desktop\Work\matplotlib\src\agg_py_path_iterator.h(217) : error C3861: 'round': identifier not found, ev
en with argument-dependent lookup
c:\home\mspacek\Desktop\Work\matplotlib\src\agg_py_path_iterator.h(218) : error C3861: 'round': identifier not found, ev
en with argument-dependent lookup
error: command '"C:\bin\Microsoft Visual Studio .NET 2003\Vc7\bin\cl.exe"' failed with exit status 2
I guess that would require another #include statement somewhere? I'm obviously not a C/C++ guru...
Martin
Michael Droettboom wrote:
> Unfortunately, you're using a compiler I don't have access to. I don't 
> think even the guy that makes the Windows releases (Charlie Moad) uses 
> Visual Studio 2003. That is not to say we don't want VS2003 to work, 
> just that it unfortunately doesn't get much testing and you're hitting 
> the bleeding edge here.
> 
> If you add --
> 
> #include <limits>
> 
> to the top of path.cpp, does that resolve the issue?
> 
> If not, we may need to do some namespace mangling on VS2003 -- 
> Microsoft's docs don't seem to *explicitly* put numeric_limits in the 
> std:: namespace, but in my past experience, std:: is often a synonym for 
> :: in Visual Studio.
> 
> Cheers,
> Mike
> 

Hi,
Is there anything like the matlab bar function implemented which
automatically plots groups of bars? Ie bar(x,y) where x.shape = (m,)
and y.shape =(m,n) or similar...
In Matlab this would draw M groups of N vertical bars, colored appropriately.
I can't get bar to do this and didn't find anything in the
documentation - unfortunately I wasn't able to search the mailing list
since sourceforge was playing up.
Thanks,
Robin

On Sun, Apr 20, 2008 at 9:13 PM, hjc520070 <jia...@16...> wrote:
>
> Thanks for your help. I get it work. However, an interesting thing appears.
> The following two codes(code 1 and code 2) makes different result??? Only
> set background in different place. Anyone can tell me why? I am eager to
> know it.
In code2, you copy the background before the canvas is drawn, which is
wrong. code 1 is the correct approach. Calling ax.plot is not enough
to cause the background to be drawn. You must call fig.canvas.draw
first.
JDH

Thanks for your help. I get it work. However, an interesting thing appears.
The following two codes(code 1 and code 2) makes different result??? Only
set background in different place. Anyone can tell me why? I am eager to
know it.
##code 1
import wx
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg
from matplotlib.figure import Figure
class Temp: 
 def __init__(self):
 
 self.step=0
 
 app = wx.PySimpleApp()
 frame=wx.Frame(None,size=(700,500))
 frame.Show(True)
 
 ##Creat figure , canvas , axe.
 fig = Figure((8.8,6),facecolor='w')
 self.canvas = FigureCanvasWxAgg(frame, -1, fig)
 self.ax=fig.add_axes([0.1,0.15,0.7,0.7],axisbg='#dedff7') 
 
 ##Create line on axe.
 self.y=[1,1]
 self.x=[0,10]
 self.line,=self.ax.plot(self.x,self.y,animated=True)
 
 ##Bind timer to refresh line
 timer=wx.Timer()
 timer.Bind(wx.EVT_TIMER, self.OnTimer, timer)
 timer.Start(1000) 
 app.MainLoop()
 
 def OnTimer(self,event):
 self.step=self.step+1
 
 if self.step==1:
 self.background=self.canvas.copy_from_bbox(self.ax.bbox)
 
 self.y=[self.y[0]+0.005,self.y[1]+0.005]
 self.canvas.restore_region(self.background) 
 self.line.set_data(self.x,self.y) 
 self.ax.draw_artist(self.line)
 self.canvas.blit(self.ax.bbox)
Temp() 
##Code 2
import wx
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg
from matplotlib.figure import Figure
class Temp:
 
 def __init__(self):
 
 self.step=0
 
 app = wx.PySimpleApp()
 frame=wx.Frame(None,size=(700,500))
 frame.Show(True)
 
 ##Creat figure , canvas , axe.
 fig = Figure((8.8,6),facecolor='w')
 self.canvas = FigureCanvasWxAgg(frame, -1, fig)
 self.ax=fig.add_axes([0.1,0.15,0.7,0.7],axisbg='#dedff7') 
 
 ##Create line on axe.
 self.y=[1,1]
 self.x=[0,10]
 self.line,=self.ax.plot(self.x,self.y,animated=True)
 
 self.background=self.canvas.copy_from_bbox(self.ax.bbox)
 ##Bind timer to refresh line
 timer=wx.Timer()
 timer.Bind(wx.EVT_TIMER, self.OnTimer, timer)
 timer.Start(1000) 
 app.MainLoop()
 
 def OnTimer(self,event):
 self.step=self.step+1
 
 self.y=[self.y[0]+0.005,self.y[1]+0.005]
 self.canvas.restore_region(self.background) 
 self.line.set_data(self.x,self.y) 
 self.ax.draw_artist(self.line)
 self.canvas.blit(self.ax.bbox)
Temp() 
-- 
View this message in context: http://www.nabble.com/Different-between-canvas.draw%28%29-and-canvas.restore_region%28%29---tp16790656p16801603.html
Sent from the matplotlib - users mailing list archive at Nabble.com.