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-rw-r--r--gr-wxgui/src/python/plotter/plotter_base.py8
1 files changed, 5 insertions, 3 deletions
diff --git a/gr-wxgui/src/python/plotter/plotter_base.py b/gr-wxgui/src/python/plotter/plotter_base.py
index 96a1869da..a695fce0a 100644
--- a/gr-wxgui/src/python/plotter/plotter_base.py
+++ b/gr-wxgui/src/python/plotter/plotter_base.py
@@ -49,11 +49,14 @@ class _plotter_base(wx.glcanvas.GLCanvas):
def __init__(self, parent):
"""!
Create a new plotter base.
- Initialize GL and register events.
+ Initialize the GLCanvas with double buffering.
+ Initialize various plotter flags.
+ Bind the paint and size events.
@param parent the parent widgit
"""
self._semaphore = threading.Semaphore(1)
- wx.glcanvas.GLCanvas.__init__(self, parent, -1)
+ attribList = (wx.glcanvas.WX_GL_DOUBLEBUFFER, wx.glcanvas.WX_GL_RGBA)
+ wx.glcanvas.GLCanvas.__init__(self, parent, attribList=attribList)
self.changed(False)
self._gl_init_flag = False
self._resized_flag = True
@@ -86,7 +89,6 @@ class _plotter_base(wx.glcanvas.GLCanvas):
if self._resized_flag:
self.lock()
self.width, self.height = self.GetSize()
- glViewport(0, 0, self.width, self.height)
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
glOrtho(0, self.width, self.height, 0, 1, 0)