Angular Distance Weighted
- Author: O.Conrad (c) 2013
- Menu: Grid | Gridding | Interpolation
Description
Angular Distance Weighted (ADW) grid interpolation from irregular distributed points.
References
- Shepard, D. (1968): A Two-Dimensional Interpolation Function for Irregularly-Spaced Data. Proceedings of the 1968 23rd ACM National Conference, pp.517-524, online.
Parameters
Name | Type | Identifier | Description | Constraints | |
---|---|---|---|---|---|
Input | Points | shapes, input | POINTS | - | - |
Target System | grid, input, optional | 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 number | 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 number | TARGET_USER_SIZE | - | Minimum: 0.000000 Default: 1.000000 | |
West | floating point number | TARGET_USER_XMIN | - | Default: 0.000000 | |
East | floating point number | TARGET_USER_XMAX | - | Default: 100.000000 | |
South | floating point number | TARGET_USER_YMIN | - | Default: 0.000000 | |
North | floating point number | TARGET_USER_YMAX | - | Default: 100.000000 | |
Columns | integer number | TARGET_USER_COLS | Number of cells in East-West direction. | Minimum: 1 Default: 101 | |
Rows | integer number | 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 | - | - | |
Search Range | choice | SEARCH_RANGE | - | Available Choices: [0] local [1] global Default: 1 | |
Maximum Search Distance | floating point number | 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 number | SEARCH_POINTS_MIN | minimum number of points to use | Minimum: 1 Default: 1 | |
Maximum | integer number | SEARCH_POINTS_MAX | maximum number of nearest points | Minimum: 1 Default: 20 | |
Weighting Function | choice | DW_WEIGHTING | - | Available Choices: [0] no distance weighting [1] inverse distance to a power [2] exponential [3] gaussian Default: 1 | |
Power | floating point number | DW_IDW_POWER | - | Minimum: 0.000000 Default: 2.000000 | |
Bandwidth | floating point number | DW_BANDWIDTH | Bandwidth for exponential and Gaussian weighting | Minimum: 0.000000 Default: 1.000000 |
Command Line
Usage: saga_cmd grid_gridding 7 [-POINTS] [-FIELD ] [-CV_METHOD ] [-CV_SUMMARY ] [-CV_RESIDUALS ] [-CV_SAMPLES ] [-TARGET_DEFINITION ] [-TARGET_USER_SIZE ] [-TARGET_USER_XMIN ] [-TARGET_USER_XMAX ] [-TARGET_USER_YMIN ] [-TARGET_USER_YMAX ] [-TARGET_USER_COLS ] [-TARGET_USER_ROWS ] [-TARGET_USER_FITS ] [-TARGET_TEMPLATE ] [-TARGET_OUT_GRID ] [-SEARCH_RANGE ] [-SEARCH_RADIUS ] [-SEARCH_POINTS_ALL ] [-SEARCH_POINTS_MIN ] [-SEARCH_POINTS_MAX ] [-DW_WEIGHTING ] [-DW_IDW_POWER ] [-DW_BANDWIDTH ] -POINTS: Points shapes, input -FIELD: Attribute table field -CV_METHOD: Cross Validation choice Available Choices: [0] none [1] leave one out [2] 2-fold [3] k-fold Default: 0 -CV_SUMMARY: Cross Validation Summary table, output, optional -CV_RESIDUALS: Cross Validation Residuals shapes, output, optional -CV_SAMPLES: Cross Validation Subsamples integer number Minimum: 2 Default: 10 -TARGET_DEFINITION: Target Grid System choice Available Choices: [0] user defined [1] grid or grid system Default: 0 -TARGET_USER_SIZE: Cellsize floating point number Minimum: 0.000000 Default: 1.000000 -TARGET_USER_XMIN: West floating point number Default: 0.000000 -TARGET_USER_XMAX: East floating point number Default: 100.000000 -TARGET_USER_YMIN: South floating point number Default: 0.000000 -TARGET_USER_YMAX: North floating point number Default: 100.000000 -TARGET_USER_COLS: Columns integer number Minimum: 1 Default: 101 -TARGET_USER_ROWS: Rows integer number Minimum: 1 Default: 101 -TARGET_USER_FITS: Fit choice Available Choices: [0] nodes [1] cells Default: 0 -TARGET_TEMPLATE: Target System grid, input, optional -TARGET_OUT_GRID: Target Grid grid, output -SEARCH_RANGE: Search Range choice Available Choices: [0] local [1] global Default: 1 -SEARCH_RADIUS: Maximum Search Distance floating point number Minimum: 0.000000 Default: 1000.000000 -SEARCH_POINTS_ALL: Number of Points choice Available Choices: [0] maximum number of nearest points [1] all points within search distance Default: 1 -SEARCH_POINTS_MIN: Minimum integer number Minimum: 1 Default: 1 -SEARCH_POINTS_MAX: Maximum integer number Minimum: 1 Default: 20 -DW_WEIGHTING: Weighting Function choice Available Choices: [0] no distance weighting [1] inverse distance to a power [2] exponential [3] gaussian Default: 1 -DW_IDW_POWER: Power floating point number Minimum: 0.000000 Default: 2.000000 -DW_BANDWIDTH: Bandwidth floating point number Minimum: 0.000000 Default: 1.000000