Module B-Spline Approximation
Calculates B-spline functions for chosen level of detail. This module serves as the basis for the 'Multilevel B-Spline Interpolation' and is not suited as is for spatial data interpolation from scattered data.
Reference:
- Lee, S., Wolberg, G., Shin, S.Y. (1997): 'Scattered Data Interpolation with Multilevel B-Splines', IEEE Transactions On Visualisation And Computer Graphics, Vol.3, No.3
- Author: (c) 2006 by O.Conrad
- Specification: grid
- Menu: Grid|Gridding|Spline Interpolation
Parameters
| Name | Type | Identifier | Description | Constraints | |
|---|---|---|---|---|---|
| Input | Points | Shapes (input) | SHAPES | - | - |
| 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 | |
| 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 | |
| Cellsize | Floating point | TARGET_USER_SIZE | - | Minimum: 0.000000 Default: 1.000000 | |
| Fit | Choice | TARGET_USER_FITS | - | Available Choices: [0] nodes [1] cells Default: 0 | |
| Resolution | Floating point | LEVEL | - | Minimum: 0.001000 Default: 1.000000 | |
| (*) optional | |||||
Command-line
Usage: saga_cmd grid_spline 3 [-SHAPES <str>] [-FIELD <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>] [-LEVEL <str>] -SHAPES:<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_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) -LEVEL:<str> Resolution Floating point Minimum: 0.001000 Default: 1.000000