def load_vrt(self, iface, suffix=""):
# Add to project
layer = iface.addRasterLayer(self.path + ".vrt",
"VRT-{}{}".format(self, suffix))
layer.setCrs(self.drone_map.crs_dest)
# We make black pixels transparent to remove the rotated frame, not ideal if there are actually black pixels in the image
rasterTransparency = layer.renderer().rasterTransparency()
pixel = QgsRasterTransparency.TransparentThreeValuePixel()
pixel.red, pixel.green, pixel.blue, pixel.percentTransparent = 0, 0, 0, 100
rasterTransparency.setTransparentThreeValuePixelList([pixel])
def setTransparency(raster):
renderer = raster.renderer()
tvp, setTransparent = None, None
if isinstance(renderer, QgsSingleBandGrayRenderer):
tvp = QgsRasterTransparency.TransparentSingleValuePixel()
setTransparent = renderer.rasterTransparency(
).setTransparentSingleValuePixelList
elif isinstance(renderer, QgsMultiBandColorRenderer):
tvp = QgsRasterTransparency.TransparentThreeValuePixel()
tvp.percentTransparent = 100.0
setTransparent = renderer.rasterTransparency(
).setTransparentThreeValuePixelList
else:
return
tvp.percentTransparent = 100.0
setTransparent([tvp])
raster.triggerRepaint()
def getListTTVP():
t = QgsRasterTransparency.TransparentThreeValuePixel()
t.red = t.green = t.blue = 0.0
t.percentTransparent = 100.0
return [t]
