Never mind that question,
I found the problem.
In stead of writing
glRectf(-25.0, 25.0, 25.0, 25.0)
I had to write
glRectf(-25.0, 25.0, 25.0, -25.0)
Sorry for that
Tim De Graeve wrote:
Hello,
I don't know if this is the right mailing list to post my question on
because I don't know if my problem is QT or OpenGL related.
Anyway I am taking my first steps with PyQT and OpenGL and wrote the
following code based on the C++ code from the book OpenGL Superbible
and the gears.py sample delivered with PyQT:
#!/usr/bin/env python
import sys
from qt import *
from qtgl import *
from OpenGL.GL import *
class TestGLWidget(QGLWidget):
def __init__(self,parent=None,name=None):
QGLWidget.__init__(self,parent,name)
def paintGL(self):
glClear(GL_COLOR_BUFFER_BIT)
glColor3f(1.0, 0.0, 0.0)
glRectf(-25.0, 25.0, 25.0, 25.0)
glFlush()
def resizeGL(self, w, h):
if (h == 0):
h = 1
glViewport(0, 0, w, h)
glMatrixMode(GL_PROJECTION)
glLoadIdentity();
aspectRatio = w / h
if (w <= h):
glOrtho (-100.0, 100.0, -100 / aspectRatio, 100.0 /
aspectRatio, 1.0, -1.0)
else:
glOrtho (-100.0 * aspectRatio, 100.0 * aspectRatio, -100.0,
100.0, 1.0, -1.0)
glMatrixMode(GL_MODELVIEW)
glLoadIdentity()
def initializeGL(self):
glClearColor(0.0, 0.0, 1.0, 1.0)
if __name__=='__main__':
QApplication.setColorSpec(QApplication.CustomColor)
app=QApplication(sys.argv)
if not QGLFormat.hasOpenGL():
raise 'No Qt OpenGL support.'
widget=TestGLWidget()
app.setMainWidget(widget)
widget.show()
app.exec_loop()
Now the problem that I have is that I only get a blue window, without
the rectangle that needs to be drawn in it. Can someone help me to
solve this problem, or am I on the wrong mailing list for this?
Thanks.
Kind regards,
Tim De Graeve
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