I am using matplotlib version 1.3.1 with numpy 1.7.1 on a win32 platform for the following code:
import matplotlib import matplotlib.pyplot as plt from matplotlib.collections import PatchCollection import matplotlib.colors as col import matplotlib.cm as cm from matplotlib.patches import Wedge import numpy as np def register_cmap(cmapName): """ Purpose: define colormap using the from_List() method as a segmented list and register it. """ startcolor = '#00AF33' # truegreen midcolor = '#FFE600' # yolk (a medium dark yellow) endcolor = '#FF0033' # bright red cmap2 = col.LinearSegmentedColormap.from_list(cmapName, [startcolor,midcolor,endcolor]) cm.register_cmap(cmap=cmap2) return cmap2 # Define my colormap red->yellow->green for curvature my_cmap = register_cmap('reylgr') # Modified matplotlib gallery example radii = np.arange(0.0,1.05,.05) # inner radius of rings width = 0.05 # width of rings patches = [] for r in radii: wedge = Wedge((0.0,0.0), r+width, 0.0,360.0, width = width) patches.append(wedge) fig = plt.figure() ax = fig.add_subplot(111) colors = radii p = PatchCollection(patches, cmap=my_cmap) p.set_array(colors) ax.add_collection(p) ax.set_xlim(-1.5,+1.5) ax.set_ylim(-1.5,+1.5) plt.colorbar(p) plt.show() When I execute this code I do get concentric circles (wedge rings) as expected. However, I do not want "edges" along the boundaries of the rings. I would like the color changes between rings to look like the colorbar. I have tried several options with Wedge (e.g. edgecolor = "none"); but, this had no observable effect. Help on this would be appreciated. ------------------------------------------------------------------------------ Open source business process management suite built on Java and Eclipse Turn processes into business applications with Bonita BPM Community Edition Quickly connect people, data, and systems into organized workflows Winner of BOSSIE, CODIE, OW2 and Gartner awards http://p.sf.net/sfu/Bonitasoft _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users