SAGA-GIS Module Library Documentation (v2.1.3)

Module Modifed Quadratic Shepard

Modified Quadratic Shepard method for grid interpolation from irregular distributed points. This module is based on Module 660 in TOMS.
QSHEP2D: Fortran routines implementing the Quadratic Shepard method for bivariate interpolation of scattered data (see R. J. Renka, ACM TOMS 14 (1988) pp.149-150).
Classes: E2b. Interpolation of scattered, non-gridded multivariate data.

Parameters

 NameTypeIdentifierDescriptionConstraints
InputPointsShapes (input)SHAPES--
OptionsAttributeTable fieldFIELD--
Quadratic NeighborsIntegerQUADRATIC_NEIGHBORS-Minimum: 5
Default: 13
Weighting NeighborsIntegerWEIGHTING_NEIGHBORS-Minimum: 3
Default: 19

Command-line

Usage: saga_cmd grid_gridding 4 -SHAPES <str> [-FIELD <str>] [-QUADRATIC_NEIGHBORS <num>] [-WEIGHTING_NEIGHBORS <num>] [-TARGET_DEFINITION <str>] [-TARGET_USER_XMIN <str>] [-TARGET_USER_XMAX <str>] [-TARGET_USER_YMIN <str>] [-TARGET_USER_YMAX <str>] [-TARGET_USER_SIZE <str>] [-TARGET_USER_FITS <str>] [-TARGET_TEMPLATE <str>] [-TARGET_OUT_GRID <str>]
  -SHAPES:<str>             	Points
	Shapes (input)
  -FIELD:<str>              	Attribute
	Table field
  -QUADRATIC_NEIGHBORS:<num>	Quadratic Neighbors
	Integer
	Minimum: 5
	Default: 13
  -WEIGHTING_NEIGHBORS:<num>	Weighting Neighbors
	Integer
	Minimum: 3
	Default: 19
  -TARGET_DEFINITION:<str>  	Target Grid System
	Choice
	Available Choices:
	[0] user defined
	[1] grid or grid system
	Default: 0
  -TARGET_USER_XMIN:<str>   	Left
	Floating point
	Default: 0.000000
  -TARGET_USER_XMAX:<str>   	Right
	Floating point
	Default: 100.000000
  -TARGET_USER_YMIN:<str>   	Bottom
	Floating point
	Default: 0.000000
  -TARGET_USER_YMAX:<str>   	Top
	Floating point
	Default: 100.000000
  -TARGET_USER_SIZE:<str>   	Cellsize
	Floating point
	Minimum: 0.000000
	Default: 1.000000
  -TARGET_USER_FITS:<str>   	Fit
	Choice
	Available Choices:
	[0] nodes
	[1] cells
	Default: 0
  -TARGET_TEMPLATE:<str>    	Target System
	Grid (optional input)
  -TARGET_OUT_GRID:<str>    	Target Grid
	Grid (output)