--- a/PyVEFViewer.py	Tue Mar 22 14:17:09 2011 -0700
+++ b/PyVEFViewer.py	Thu Mar 24 15:15:07 2011 -0700
@@ -52,6 +52,12 @@
             filename = QtGui.QFileDialog.getOpenFileName(self, 'Open file')
             self.read_from_extension(str(filename))
             self.normalize_view()
+        elif e.key() == QtCore.Qt.Key_P:
+            if self.camera().type() == Camera.ORTHOGRAPHIC:
+                self.camera().setType(Camera.PERSPECTIVE)
+            else:
+                self.camera().setType(Camera.ORTHOGRAPHIC)
+            self.updateGL()
         else:
             super(VEFViewer, self).keyPressEvent(e)