Ejemplo n.º 1
0
 def testOpaqueness(self):
     ims_opaque = RGBAImageSource(self.red,
                                  self.green,
                                  self.blue,
                                  ConstantSource(),
                                  RGBALayer(self.red,
                                            self.green,
                                            self.blue,
                                            alpha_missing_value=255),
                                  guarantees_opaqueness=True)
     self.assertTrue(ims_opaque.isOpaque())
     ims_notopaque = RGBAImageSource(
         self.red, self.green, self.blue, ConstantSource(),
         RGBALayer(self.red, self.green, self.blue,
                   alpha_missing_value=100))
     self.assertFalse(ims_notopaque.isOpaque())
Ejemplo n.º 2
0
 def testOpaqueness(self):
     ims_opaque = RGBAImageSource(
         self.red,
         self.green,
         self.blue,
         ConstantSource(),
         RGBALayer(self.red, self.green, self.blue, alpha_missing_value=255),
         guarantees_opaqueness=True,
     )
     self.assertTrue(ims_opaque.isOpaque())
     ims_notopaque = RGBAImageSource(
         self.red,
         self.green,
         self.blue,
         ConstantSource(),
         RGBALayer(self.red, self.green, self.blue, alpha_missing_value=100),
     )
     self.assertFalse(ims_notopaque.isOpaque())