Tool Natural Neighbour

Natural Neighbour method for grid interpolation from irregular distributed points. This tool makes use of the 'nn - Natural Neighbours interpolation library' created and maintained by Pavel Sakov, CSIRO Marine Research.

References

github.com/sakov/nn-c

Author: O.Conrad (c) 2008
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	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
	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`	-	-
	Method	Choice	`METHOD`	-	Available Choices: [0] Linear [1] Sibson [2] Non-Sibsonian Default: 1
	Minimum Weight	Floating point	`WEIGHT`	restricts extrapolation by assigning minimal allowed weight for a vertex (normally "-1" or so; lower values correspond to lower reliability; "0" means no extrapolation)	Maximum: 0.000000 Default: 0.000000
(*) optional

Command-line

Usage: saga_cmd grid_gridding 3 [-POINTS <str>] [-FIELD <str>] [-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>] [-METHOD <str>] [-WEIGHT <double>]
  -POINTS:<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_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
  -METHOD:<str>             	Method
	Choice
	Available Choices:
	[0] Linear
	[1] Sibson
	[2] Non-Sibsonian
	Default: 1
  -WEIGHT:<double>          	Minimum Weight
	Floating point
	Maximum: 0.000000
	Default: 0.000000