Tool Inverse Distance Weighted
Inverse distance grid interpolation from irregular distributed points.
- Author: O.Conrad (c) 2003
- Menu: Grid|Gridding|Interpolation from Points
- WIKI: http://sourceforge.net/apps/trac/saga-gis/wiki/grid_gridding_1
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 | Cross Validation Summary (*) | Table (optional output) | CV_SUMMARY | - | - |
| Cross Validation Residuals (*) | Shapes (optional output) | 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 | |
| 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 | - | - | |
| Search Range | Choice | SEARCH_RANGE | - | Available Choices: [0] local [1] global Default: 1 | |
| Maximum Search Distance | Floating point | SEARCH_RADIUS | local maximum search distance given in map units | Minimum: 0.000000 Default: 1000.000000 | |
| Number of Points | Choice | SEARCH_POINTS_ALL | - | Available Choices: [0] maximum number of nearest points [1] all points within search distance Default: 1 | |
| Minimum | Integer | SEARCH_POINTS_MIN | minimum number of points to use | Minimum: 1 Default: -1 | |
| Maximum | Integer | SEARCH_POINTS_MAX | maximum number of nearest points | Minimum: 1 Default: 20 | |
| Direction | Choice | SEARCH_DIRECTION | - | Available Choices: [0] all directions [1] quadrants Default: 0 | |
| Weighting Function | Choice | DW_WEIGHTING | - | Available Choices: [0] no distance weighting [1] inverse distance to a power [2] exponential [3] gaussian weighting Default: 1 | |
| Inverse Distance Weighting Power | Floating point | DW_IDW_POWER | - | Minimum: 0.000000 Default: 2.000000 | |
| Inverse Distance Offset | Boolean | DW_IDW_OFFSET | Calculates weights for distance plus one, avoiding division by zero for zero distances | Default: 0 | |
| Gaussian and Exponential Weighting Bandwidth | Floating point | DW_BANDWIDTH | - | Minimum: 0.000000 Default: 1.000000 | |
| (*) optional | |||||
Command-line
Usage: saga_cmd grid_gridding 1 [-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_FITS <str>] [-TARGET_TEMPLATE <str>] [-TARGET_OUT_GRID <str>] [-SEARCH_RANGE <str>] [-SEARCH_RADIUS <double>] [-SEARCH_POINTS_ALL <str>] [-SEARCH_POINTS_MIN <num>] [-SEARCH_POINTS_MAX <num>] [-SEARCH_DIRECTION <str>] [-DW_WEIGHTING <str>] [-DW_IDW_POWER <double>] [-DW_IDW_OFFSET <str>] [-DW_BANDWIDTH <double>] -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 (optional output) -CV_RESIDUALS:<str> Cross Validation Residuals Shapes (optional output) -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> 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) -SEARCH_RANGE:<str> Search Range Choice Available Choices: [0] local [1] global Default: 1 -SEARCH_RADIUS:<double> Maximum Search Distance Floating point Minimum: 0.000000 Default: 1000.000000 -SEARCH_POINTS_ALL:<str> Number of Points Choice Available Choices: [0] maximum number of nearest points [1] all points within search distance Default: 1 -SEARCH_POINTS_MIN:<num> Minimum Integer Minimum: 1 Default: -1 -SEARCH_POINTS_MAX:<num> Maximum Integer Minimum: 1 Default: 20 -SEARCH_DIRECTION:<str> Direction Choice Available Choices: [0] all directions [1] quadrants Default: 0 -DW_WEIGHTING:<str> Weighting Function Choice Available Choices: [0] no distance weighting [1] inverse distance to a power [2] exponential [3] gaussian weighting Default: 1 -DW_IDW_POWER:<double> Inverse Distance Weighting Power Floating point Minimum: 0.000000 Default: 2.000000 -DW_IDW_OFFSET:<str> Inverse Distance Offset Boolean Default: 0 -DW_BANDWIDTH:<double> Gaussian and Exponential Weighting Bandwidth Floating point Minimum: 0.000000 Default: 1.000000