def __init__(self):
super().__init__()
self.addParameter(ParameterVector(self.INPUT_LAYER,
self.tr('Point layer'), [dataobjects.TYPE_VECTOR_POINT]))
self.addParameter(ParameterNumber(self.RADIUS,
self.tr('Radius (layer units)'),
0.0, 9999999999, 100.0))
radius_field_param = ParameterTableField(self.RADIUS_FIELD,
self.tr('Radius from field'), self.INPUT_LAYER, optional=True, datatype=ParameterTableField.DATA_TYPE_NUMBER)
radius_field_param.setFlags(radius_field_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(radius_field_param)
class ParameterHeatmapPixelSize(ParameterNumber):
def __init__(self, name='', description='', parent_layer=None, radius_param=None, radius_field_param=None, minValue=None, maxValue=None,
default=None, optional=False, metadata={}):
ParameterNumber.__init__(self, name, description, minValue, maxValue, default, optional, metadata)
self.parent_layer = parent_layer
self.radius_param = radius_param
self.radius_field_param = radius_field_param
self.addParameter(ParameterHeatmapPixelSize(self.PIXEL_SIZE,
self.tr('Output raster size'), parent_layer=self.INPUT_LAYER, radius_param=self.RADIUS,
radius_field_param=self.RADIUS_FIELD,
minValue=0.0, maxValue=9999999999, default=0.1,
metadata={'widget_wrapper': HeatmapPixelSizeWidgetWrapper}))
weight_field_param = ParameterTableField(self.WEIGHT_FIELD,
self.tr('Weight from field'), self.INPUT_LAYER, optional=True, datatype=ParameterTableField.DATA_TYPE_NUMBER)
weight_field_param.setFlags(weight_field_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(weight_field_param)
kernel_shape_param = ParameterSelection(self.KERNEL,
self.tr('Kernel shape'), self.KERNELS)
kernel_shape_param.setFlags(kernel_shape_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(kernel_shape_param)
decay_ratio = ParameterNumber(self.DECAY,
self.tr('Decay ratio (Triangular kernels only)'),
-100.0, 100.0, 0.0)
decay_ratio.setFlags(decay_ratio.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(decay_ratio)
output_scaling = ParameterSelection(self.OUTPUT_VALUE,
self.tr('Output value scaling'), self.OUTPUT_VALUES)
output_scaling.setFlags(output_scaling.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(output_scaling)
self.addOutput(OutputRaster(self.OUTPUT_LAYER,
self.tr('Heatmap')))
