v.surf.rst Spatial approximation and topographic analysis using regularized spline with tension. Vector (v.*) QgsProcessingParameterVectorLayer|input|Input points layer|0|None|False *QgsProcessingParameterString|where|WHERE conditions of SQL statement without 'where' keyword|None|False|True QgsProcessingParameterRasterLayer|mask|Name of the raster map used as mask|None|True QgsProcessingParameterField|zcolumn|Name of the attribute column with values to be used for approximation|None|input|-1|False|False QgsProcessingParameterNumber|tension|Tension parameter|QgsProcessingParameterNumber.Double|40|False|None|None QgsProcessingParameterNumber|segmax|Maximum number of points in a segment|QgsProcessingParameterNumber.Double|40|False|None|None QgsProcessingParameterNumber|npmin|Minimum number of points for approximation in a segment (>segmax)|QgsProcessingParameterNumber.Double|300|False|None|None QgsProcessingParameterNumber|dmin|Minimum distance between points (to remove almost identical points)|QgsProcessingParameterNumber.Double|0.001|False|None|None QgsProcessingParameterNumber|dmax|Maximum distance between points on isoline (to insert additional points)|QgsProcessingParameterNumber.Double|2.5|False|None|None QgsProcessingParameterNumber|zscale|Conversion factor for values used for approximation|QgsProcessingParameterNumber.Double|1.0|False|None|None QgsProcessingParameterNumber|theta|Anisotropy angle (in degrees counterclockwise from East)|QgsProcessingParameterNumber.Double|0|False|360|0 QgsProcessingParameterNumber|scalex|Anisotropy scaling factor|QgsProcessingParameterNumber.Double|0|False|None|None QgsProcessingParameterBoolean|-t|Use scale dependent tension|False QgsProcessingParameterBoolean|-d|Output partial derivatives instead of topographic parameters|False QgsProcessingParameterRasterDestination|elevation|Interpolated RST QgsProcessingParameterRasterDestination|slope|Slope QgsProcessingParameterRasterDestination|aspect|Aspect QgsProcessingParameterRasterDestination|pcurvature|Profile curvature QgsProcessingParameterRasterDestination|tcurvature|Tangential curvature QgsProcessingParameterRasterDestination|mcurvature|Mean curvature