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.

Author: Copyrights (c) 2003 by Andre Ringeler
Specification: grid
Menu: Grid|Gridding|Interpolation from Points

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Points	Shapes (input)	`SHAPES`	-	-
Input	Target System (*)	Grid (optional input)	`TARGET_TEMPLATE`	use this grid's system for output grids	-
Output	Target Grid	Grid (output)	`TARGET_OUT_GRID`	-	-
Options	Attribute	Table field	`FIELD`	-	-
	Target Grid System	Choice	`TARGET_DEFINITION`	-	Available Choices: [0] user defined [1] grid or grid system Default: 0
	Left	Floating point	`TARGET_USER_XMIN`	-	Default: 0.000000
	Right	Floating point	`TARGET_USER_XMAX`	-	Default: 100.000000
	Bottom	Floating point	`TARGET_USER_YMIN`	-	Default: 0.000000
	Top	Floating point	`TARGET_USER_YMAX`	-	Default: 100.000000
	Cellsize	Floating point	`TARGET_USER_SIZE`	-	Minimum: 0.000000 Default: 1.000000
	Fit	Choice	`TARGET_USER_FITS`	-	Available Choices: [0] nodes [1] cells Default: 0
	Quadratic Neighbors	Integer	`QUADRATIC_NEIGHBORS`	-	Minimum: 5 Default: 13
	Weighting Neighbors	Integer	`WEIGHTING_NEIGHBORS`	-	Minimum: 3 Default: 19
(*) optional

Command-line

Usage: saga_cmd grid_gridding 4 [-SHAPES <str>] [-FIELD <str>] [-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>] [-QUADRATIC_NEIGHBORS <num>] [-WEIGHTING_NEIGHBORS <num>]
  -SHAPES:<str>             	Points
	Shapes (input)
  -FIELD:<str>              	Attribute
	Table field
  -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)
  -QUADRATIC_NEIGHBORS:<num>	Quadratic Neighbors
	Integer
	Minimum: 5
	Default: 13
  -WEIGHTING_NEIGHBORS:<num>	Weighting Neighbors
	Integer
	Minimum: 3
	Default: 19