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. Find more information about this library at:
github.com/sakov/nn-c.
- Author: O.Conrad (c) 2008
- Menu: Grid|Gridding|Interpolation from Points
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | Points | Shapes (input) | POINTS | - | - |
| 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 |
| Cellsize | Floating point | TARGET_USER_SIZE | - | Minimum: 0.000000
Default: 1.000000 |
| 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 |
| 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_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> Left
Floating point
Default: 0.000000
-TARGET_USER_XMAX:<double> Right
Floating point
Default: 100.000000
-TARGET_USER_YMIN:<double> Bottom
Floating point
Default: 0.000000
-TARGET_USER_YMAX:<double> Top
Floating point
Default: 100.000000
-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)
-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