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From: Eric F. <ef...@ha...> - 2006-05-03 16:53:34
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Bob, Try doing b = axis() ax1.plot([0.0],[0.0],'wo') axis(b) That saves the axis range set by imshow and restores it after the call to plot. Eric Robert Simpson wrote: > Hi, > > Using matplotlib 0.87.2, I've been trying to plot points on top of an > image. The image without points fills axes of the extent requested, but > using plot to add a point on top of the image changes the axes lengths > and gives unwanted white margins around the edges. Here's an example. > Any help would be greatly appreciated! > > Bob Simpson > > from pylab import * > > # Sample image. > image = rand(12,6) > > # This choice for extent works fine... It produces no white margins. > #extent = [-80, 60, -60, 40] > > # This choice gives unwanted white margins, > # except when no point is plotted. > extent = [-80.,64., -74.,48.] > > ax1 = axes() > ax1.im = imshow(image, origin='lower', extent=extent) > > # Plot point on image. > hold(True) > ax1.plot([0.0],[0.0],'wo') > > show() > > > > ------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job > easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > Matplotlib-users mailing list > Mat...@li... > https://lists.sourceforge.net/lists/listinfo/matplotlib-users |