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
Parameters
Name | Type | Identifier | Description | Constraints | |
---|---|---|---|---|---|
Input | Points | Shapes, input | POINTS | - | - |
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