Hello Community, using background image in QtApp causes pythonOCC to run very slow.(move, pan, rotate, etc..) therefore, i must use only background color until i figure it out how to set gradient color :)
nevermind,i think there is a problem with my intel graphic card.
hier is code, but please note:
in case you already set background image for example 'default_background.bmp',
you must set new 'dummy_background.bmp' (1px x 1px) with option Stretch=False
and only after that you can apply new background color.
p.s. i made "dummy_background.bmp" please find attached and put this file in
/OCC/Display
#
# QColorDialog class provides a dialog widget for specifying colors.
#
def set_background_color( self ):
color=QtGui.QColorDialog.getColor()
if( color.isValid() ):
R = color.red() / 255.
G = color.green() / 255.
B = color.blue() / 255.
print "%f: %f: %f" % (R, G, B)
self.SetBackgroundImage( self.get_dummy_bg_abs_filename(),
Stretch=False )
self.View.SetBackgroundColor( Quantity_TOC_RGB, R1, G1, B1 )
self.Repaint()
def get_dummy_bg_abs_filename ( self ):
occ_package = sys.modules['OCC']
dummy_bg_abs_filename = os.path.join( occ_package.__path__[0],
'Display', 'dummy_background.bmp' )
if not os.path.isfile( dummy_bg_abs_filename ):
raise NameError( 'No image dummy found.' )
else:
return dummy_bg_abs_filename
<<attachment: dummy_background.bmp>>
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