Tool Modifed Quadratic Shepard

Modified Quadratic Shepard method for grid interpolation from irregular distributed points. This tool is based on Tool 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: A.Ringeler (c) 2003
Menu: Grid|Gridding|Interpolation

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Points	Shapes, input	`POINTS`	-	-
Input	Target System (*)	Grid, input, optional, CMD	`TARGET_TEMPLATE`	use this grid's system for output grids	-
Output	Cross Validation Summary (*)	Table, output, optional	`CV_SUMMARY`	-	-
	Cross Validation Residuals (*)	Shapes, output, optional	`CV_RESIDUALS`	-	-
	Target Grid	Grid, output	`TARGET_OUT_GRID`	-	-
Options	Attribute	Table field	`FIELD`	-	-
	Cross Validation	Choice	`CV_METHOD`	-	Available Choices: [0] none [1] leave one out [2] 2-fold [3] k-fold Default: 0
	Cross Validation Subsamples	Integer	`CV_SAMPLES`	number of subsamples for k-fold cross validation	Minimum: 2 Default: 10
	Target Grid System	Choice	`TARGET_DEFINITION`	-	Available Choices: [0] user defined [1] grid or grid system Default: 0
	Cellsize	Floating point	`TARGET_USER_SIZE`	-	Minimum: 0.000000 Default: 1.000000
	West	Floating point	`TARGET_USER_XMIN`	-	Default: 0.000000
	East	Floating point	`TARGET_USER_XMAX`	-	Default: 100.000000
	South	Floating point	`TARGET_USER_YMIN`	-	Default: 0.000000
	North	Floating point	`TARGET_USER_YMAX`	-	Default: 100.000000
	Columns	Integer	`TARGET_USER_COLS`	Number of cells in East-West direction.	Minimum: 1 Default: 101
	Rows	Integer	`TARGET_USER_ROWS`	Number of cells in North-South direction.	Minimum: 1 Default: 101
	Fit	Choice	`TARGET_USER_FITS`	-	Available Choices: [0] nodes [1] cells Default: 0
	Grid System	Grid system	`TARGET_SYSTEM`	-	-
	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 [-POINTS <str>] [-FIELD <str>] [-CV_METHOD <str>] [-CV_SUMMARY <str>] [-CV_RESIDUALS <str>] [-CV_SAMPLES <num>] [-TARGET_DEFINITION <str>] [-TARGET_USER_SIZE <double>] [-TARGET_USER_XMIN <double>] [-TARGET_USER_XMAX <double>] [-TARGET_USER_YMIN <double>] [-TARGET_USER_YMAX <double>] [-TARGET_USER_COLS <num>] [-TARGET_USER_ROWS <num>] [-TARGET_USER_FITS <str>] [-TARGET_TEMPLATE <str>] [-TARGET_OUT_GRID <str>] [-QUADRATIC_NEIGHBORS <num>] [-WEIGHTING_NEIGHBORS <num>]
  -POINTS:<str>             	Points
	Shapes, input
  -FIELD:<str>              	Attribute
	Table field
  -CV_METHOD:<str>          	Cross Validation
	Choice
	Available Choices:
	[0] none
	[1] leave one out
	[2] 2-fold
	[3] k-fold
	Default: 0
  -CV_SUMMARY:<str>         	Cross Validation Summary
	Table, output, optional
  -CV_RESIDUALS:<str>       	Cross Validation Residuals
	Shapes, output, optional
  -CV_SAMPLES:<num>         	Cross Validation Subsamples
	Integer
	Minimum: 2
	Default: 10
  -TARGET_DEFINITION:<str>  	Target Grid System
	Choice
	Available Choices:
	[0] user defined
	[1] grid or grid system
	Default: 0
  -TARGET_USER_SIZE:<double>	Cellsize
	Floating point
	Minimum: 0.000000
	Default: 1.000000
  -TARGET_USER_XMIN:<double>	West
	Floating point
	Default: 0.000000
  -TARGET_USER_XMAX:<double>	East
	Floating point
	Default: 100.000000
  -TARGET_USER_YMIN:<double>	South
	Floating point
	Default: 0.000000
  -TARGET_USER_YMAX:<double>	North
	Floating point
	Default: 100.000000
  -TARGET_USER_COLS:<num>   	Columns
	Integer
	Minimum: 1
	Default: 101
  -TARGET_USER_ROWS:<num>   	Rows
	Integer
	Minimum: 1
	Default: 101
  -TARGET_USER_FITS:<str>   	Fit
	Choice
	Available Choices:
	[0] nodes
	[1] cells
	Default: 0
  -TARGET_TEMPLATE:<str>    	Target System
	Grid, input, optional, CMD
  -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