Module Angular Distance Weighted
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.
- Author: O.Conrad (c) 2013
- Specification: grid
- Menu: Grid|Gridding|Interpolation from Points
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | Points | Shapes (input) | SHAPES | - | - |
| Options | Attribute | Table field | FIELD | - | - |
| Search Range | Choice | SEARCH_RANGE | - | Available Choices:
[0] local
[1] global
Default: 0 |
| 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: 0 |
| Maximum Number of Points | Integer | SEARCH_POINTS_MAX | maximum number of nearest points | Minimum: 1
Default: 20 |
| Search Direction | Choice | SEARCH_DIRECTION | - | Available Choices:
[0] all directions
[1] quadrants
Default: 0 |
| Distance Weighting | Choice | WEIGHTING | - | Available Choices:
[0] inverse distance to a power
[1] linearly decreasing within search radius
[2] exponential weighting scheme
[3] gaussian weighting scheme
Default: 0 |
| Power | Floating point | WEIGHT_POWER | - | Default: 2.000000 |
| Bandwidth | Floating point | WEIGHT_BANDWIDTH | - | Minimum: 0.000000
Default: 1.000000 |
Command-line
Usage: saga_cmd grid_gridding 7 -SHAPES <str> [-FIELD <str>] [-SEARCH_RANGE <str>] [-SEARCH_RADIUS <str>] [-SEARCH_POINTS_ALL <str>] [-SEARCH_POINTS_MAX <num>] [-SEARCH_DIRECTION <str>] [-WEIGHTING <str>] [-WEIGHT_POWER <str>] [-WEIGHT_BANDWIDTH <str>] [-TARGET_DEFINITION <str>] [-TARGET_USER_XMIN <str>] [-TARGET_USER_XMAX <str>] [-TARGET_USER_YMIN <str>] [-TARGET_USER_YMAX <str>] [-TARGET_USER_SIZE <str>] [-TARGET_USER_FITS <str>] [-TARGET_TEMPLATE <str>] [-TARGET_OUT_GRID <str>]
-SHAPES:<str> Points
Shapes (input)
-FIELD:<str> Attribute
Table field
-SEARCH_RANGE:<str> Search Range
Choice
Available Choices:
[0] local
[1] global
Default: 0
-SEARCH_RADIUS:<str> 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: 0
-SEARCH_POINTS_MAX:<num> Maximum Number of Points
Integer
Minimum: 1
Default: 20
-SEARCH_DIRECTION:<str> Search Direction
Choice
Available Choices:
[0] all directions
[1] quadrants
Default: 0
-WEIGHTING:<str> Distance Weighting
Choice
Available Choices:
[0] inverse distance to a power
[1] linearly decreasing within search radius
[2] exponential weighting scheme
[3] gaussian weighting scheme
Default: 0
-WEIGHT_POWER:<str> Power
Floating point
Default: 2.000000
-WEIGHT_BANDWIDTH:<str> Bandwidth
Floating point
Minimum: 0.000000
Default: 1.000000
-TARGET_DEFINITION:<str> Target Grid System
Choice
Available Choices:
[0] user defined
[1] grid or grid system
Default: 0
-TARGET_USER_XMIN:<str> Left
Floating point
Default: 0.000000
-TARGET_USER_XMAX:<str> Right
Floating point
Default: 100.000000
-TARGET_USER_YMIN:<str> Bottom
Floating point
Default: 0.000000
-TARGET_USER_YMAX:<str> Top
Floating point
Default: 100.000000
-TARGET_USER_SIZE:<str> Cellsize
Floating point
Minimum: 0.000000
Default: 1.000000
-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)