QgsProcessingParameterNumber|zscale|Factor for exaggerating relief|QgsProcessingParameterNumber.Double|1.0|False|None|None
QgsProcessingParameterNumber|scale|Scale factor for converting horizontal units to elevation units|QgsProcessingParameterNumber.Double|1.0|False|None|None
QgsProcessingParameterEnum|units|Elevation units (overrides scale factor)|intl;survey