def __get_color_ramp_items(renderer: QgsRasterRenderer, provider: QgsRasterDataProvider, color: QtGui.QColor) -> List[
QgsColorRampShader.ColorRampItem]:
bands = renderer.usesBands()
band_statistics = provider.bandStatistics(bands[0], QgsRasterBandStats.All)
minValue = band_statistics.minimumValue
maxValue = band_statistics.maximumValue
min_color = QtGui.QColor(color)
min_color.setAlpha(0)
max_color = QtGui.QColor(color)
max_color.setAlpha(255)
return [
QgsColorRampShader.ColorRampItem(minValue, min_color),
QgsColorRampShader.ColorRampItem(maxValue, max_color),
]
def capabilities(self):
caps = QgsRasterInterface.Size | QgsRasterInterface.Identify | QgsRasterInterface.IdentifyValue
return QgsRasterDataProvider.ProviderCapabilities(caps)
def from_numpy(x, **opt):
ras = QgsRasterLayer()
dp = QgsRasterDataProvider()
ras.setDataProvider(dp)