[Matplotlib-users] Clabel conflicts with contourf
Hi, I've attached a reproducible example : when clabel is used, there are some empty (i.e white) triangles in the countour. It does not occur without clabel. Tested with matplotlib 1.2.0, python 2.7 on Fedora 14, 64 bits. Cheers, -- Alexis Praga, PhD Student (CERFACS) GPG key : AD4A AF6D BB5C 042F 9422 1223 06E1 C1BF E287 65D0 import matplotlib import numpy as np import matplotlib.cm as cm import matplotlib.mlab as mlab import matplotlib.pyplot as plt deltax = 0.025 deltay = 0.01 x = np.arange(-np.pi, np.pi, deltax) y = np.arange(-np.pi*0.5, np.pi*0.5, deltay) X, Y = np.meshgrid(x, y) centerx= np.pi*0.5 centery= np.pi*0.5 Z = [[np.cos(curx-centerx)*np.cos((cury-centery)) for curx in x] for cury in y] plt.figure() CS = plt.contourf(X, Y, Z,levels=np.arange(-1,1.1,0.1)) plt.colorbar(CS) plt.clabel(CS, inline=1, fontsize=10) plt.show() signature.asc Description: Digital signature -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Clabel conflicts with contourf
On 2014/01/30 1:10 AM, Alexis Praga wrote: Hi, I've attached a reproducible example : when clabel is used, there are some empty (i.e white) triangles in the countour. It does not occur without clabel. Thanks for the report--but clabel is intended to be used only with contour, not with contourf. Typically one would call contourf, and then call contour, perhaps with a subset of the levels used in contourf. The ContourSet resulting from the contour call would then be used in the call to clabel. Example: http://matplotlib.org/examples/pylab_examples/contourf_demo.html In this example the contour lines are black, but if you don't want the lines to show up at all, you could make them transparent, and then include a colors kwarg in the clabel call. Eric Tested with matplotlib 1.2.0, python 2.7 on Fedora 14, 64 bits. Cheers, -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
