def set_fixed_temporal_range(layer: QgsRasterLayer, t_range: QgsDateTimeRange) -> None:
"""
Set fixed temporal range for raster layer
:param layer: raster layer
:param t_range: fixed temporal range
"""
mode = QgsRasterLayerTemporalProperties.ModeFixedTemporalRange
tprops: QgsRasterLayerTemporalProperties = layer.temporalProperties()
tprops.setMode(mode)
if t_range.begin().timeSpec() == 0 or t_range.end().timeSpec() == 0:
begin = t_range.begin()
end = t_range.end()
begin.setTimeSpec(Qt.TimeSpec(1))
end.setTimeSpec(Qt.TimeSpec(1))
t_range = QgsDateTimeRange(begin, end)
tprops.setFixedTemporalRange(t_range)
tprops.setIsActive(True)
def set_band_based_on_range(layer: QgsRasterLayer, t_range: QgsDateTimeRange) -> int:
"""
Set raster layer band based on temporal range
:param layer: Raster layer
:param t_range: temporal range
:return: band number
"""
band_num = 1
tprops: QgsRasterLayerTemporalProperties = layer.temporalProperties()
if (
tprops.isVisibleInTemporalRange(t_range)
and t_range.begin().isValid()
and t_range.end().isValid()
):
if tprops.mode() == QgsRasterLayerTemporalProperties.ModeFixedTemporalRange:
layer_t_range: QgsDateTimeRange = tprops.fixedTemporalRange()
start: datetime.datetime = layer_t_range.begin().toPyDateTime()
end: datetime.datetime = layer_t_range.end().toPyDateTime()
delta = (end - start) / layer.bandCount()
band_num = int((t_range.begin().toPyDateTime() - start) / delta) + 1
set_raster_renderer_to_singleband(layer, band_num)
return band_num
