Module Gradient Vectors from Direction and Length
Create lines indicating the gradient.
- Author: O.Conrad (c) 2006
- Specification: grid
- Menu: Shapes|Grid|Vectorization
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | Direction | Grid (input) | DIR | - | - |
| Length | Grid (input) | LEN | - | - |
| Output | Gradient Vectors | Shapes (output) | VECTORS | - | - |
| Options | Step | Integer | STEP | - | Minimum: 1
Default: 1 |
| Size Range | Value range | SIZE | size range as percentage of step | - |
| Aggregation | Choice | AGGR | how to request values if step size is more than one cell | Available Choices:
[0] nearest neighbour
[1] mean value
Default: 1 |
| Style | Choice | STYLE | - | Available Choices:
[0] simple line
[1] arrow
[2] arrow (centered to cell)
Default: 2 |
Command-line
Usage: saga_cmd shapes_grid 16 -DIR <str> -LEN <str> [-VECTORS <str>] [-STEP <num>] [-SIZE_MIN <str>] [-SIZE_MAX <str>] [-AGGR <str>] [-STYLE <str>]
-DIR:<str> Direction
Grid (input)
-LEN:<str> Length
Grid (input)
-VECTORS:<str> Gradient Vectors
Shapes (output)
-STEP:<num> Step
Integer
Minimum: 1
Default: 1
-SIZE_MIN:<str> Size Range
Value range
-SIZE_MAX:<str> Size Range
Value range
-AGGR:<str> Aggregation
Choice
Available Choices:
[0] nearest neighbour
[1] mean value
Default: 1
-STYLE:<str> Style
Choice
Available Choices:
[0] simple line
[1] arrow
[2] arrow (centered to cell)
Default: 2