The class matplotlib.backends.backend_qt4agg.FigureCanvasQTAgg works well in a QWorkspace. But when I put it in a QMdiArea the resizing slows down.
In Qt 4.5 the class QWorkspace is deprecated. The class QMdiArea should be used instead. In the attached code you can see the difference in the performance. The project Simuvis (http://simuvis.de/wsb/) provides its own implementation of FigureCanvasQTAgg the class FigureCanvasSV4 (http://svn.berlios.de/svnroot/repos/simuvis4/trunk/AdditionalPlugIns/MatPlot/MatPlot/backend_sv4agg.py). This one works fine both in a QMdiArea and in a QWorkspace. Regards Magnus Benjes import sys from PyQt4 import QtGui, QtCore import numpy import matplotlib from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg x = numpy.arange(0,10,0.1) y = x**2 qApp = QtGui.QApplication(sys.argv) mainWindowMdi = QtGui.QMainWindow() mainWindowMdi.setWindowTitle("QMdiArea") mdi = QtGui.QMdiArea() mainWindowMdi.setCentralWidget(mdi) c1 = FigureCanvasQTAgg(matplotlib.figure.Figure()) c1.figure.add_subplot(1,1,1).plot(x,x) mdi.addSubWindow(c1) c2 = FigureCanvasQTAgg(matplotlib.figure.Figure()) c2.figure.add_subplot(1,1,1).plot(x, x**2) mdi.addSubWindow(c2) mainWindowWorkspace = QtGui.QMainWindow() mainWindowWorkspace.setWindowTitle("QWorkspace") workspace = QtGui.QWorkspace() mainWindowWorkspace.setCentralWidget(workspace) c3 = FigureCanvasQTAgg(matplotlib.figure.Figure()) c3.figure.add_subplot(1,1,1).plot(x,x) workspace.addWindow(c3) c4 = FigureCanvasQTAgg(matplotlib.figure.Figure()) c4.figure.add_subplot(1,1,1).plot(x, x**2) workspace.addWindow(c4) mainWindowMdi.show() mainWindowWorkspace.show() sys.exit(qApp.exec_()) ------------------------------------------------------------------------------ The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
