Contour Lines from Grid
- Author: O.Conrad (c) 2001
- Menu: Shapes | Shapes-Grid Tools | Vectorization
Description
Derive contour lines (isolines) from a grid.
Parameters
| Name | Type | Identifier | Description | Constraints | |
|---|---|---|---|---|---|
| Input | Grid | grid, input | GRID | - | - |
| Output | Contour | shapes, output | CONTOUR | - | - |
| Polygons | shapes, output, optional | POLYGONS | - | - | |
| Options | Grid system | grid system | GRID_GRIDSYSTEM | - | - |
| Vertex Type | choice | VERTEX | - | Available Choices: [0] x, y [1] x, y, z Default: 0 | |
| Parallel Processing | boolean | LINE_OMP | - | Default: 1 | |
| Split Line Parts | boolean | LINE_PARTS | - | Default: 1 | |
| Parallel Processing | boolean | POLY_OMP | - | Default: 1 | |
| Split Polygon Parts | boolean | POLY_PARTS | - | Default: 1 | |
| Interpolation Scale | floating point number | SCALE | set greater one for line smoothing | Minimum: 0.000000 Default: 1.000000 | |
| Boundary Extension | boolean | BOUNDARY | Extend contours beyond boundary. Internally input grid is extrapolated by one cell size in each direction (top, down, left, right). | Default: 0 | |
| Minimum Length | floating point number | MINLENGTH | Contour line segments with minimum length [map units] or less will be removed from resulting data set. | Minimum: 0.000000 Default: 0.000000 | |
| Interval Definition | choice | INTERVALS | - | Available Choices: [0] single value [1] equal intervals [2] from list Default: 1 | |
| Base Contour Value | floating point number | ZMIN | - | Default: 0.000000 | |
| Maximum Contour Value | floating point number | ZMAX | - | Default: 1000.000000 | |
| Contour Interval | floating point number | ZSTEP | - | Minimum: 0.000000 Default: 100.000000 | |
| Contour Values | text | ZLIST | List of comma separated values. | Default: 0, 10, 20, 50, 100, 200, 500, 1000 |
Command Line
Usage: saga_cmd shapes_grid 5 [-GRID] [-CONTOUR ] [-VERTEX ] [-LINE_OMP ] [-LINE_PARTS ] [-POLYGONS ] [-POLY_OMP ] [-POLY_PARTS ] [-SCALE ] [-BOUNDARY ] [-MINLENGTH ] [-INTERVALS ] [-ZMIN ] [-ZMAX ] [-ZSTEP ] [-ZLIST ] -GRID: Grid grid, input -CONTOUR: Contour shapes, output -VERTEX: Vertex Type choice Available Choices: [0] x, y [1] x, y, z Default: 0 -LINE_OMP: Parallel Processing boolean Default: 1 -LINE_PARTS: Split Line Parts boolean Default: 1 -POLYGONS: Polygons shapes, output, optional -POLY_OMP: Parallel Processing boolean Default: 1 -POLY_PARTS: Split Polygon Parts boolean Default: 1 -SCALE: Interpolation Scale floating point number Minimum: 0.000000 Default: 1.000000 -BOUNDARY: Boundary Extension boolean Default: 0 -MINLENGTH: Minimum Length floating point number Minimum: 0.000000 Default: 0.000000 -INTERVALS: Interval Definition choice Available Choices: [0] single value [1] equal intervals [2] from list Default: 1 -ZMIN: Base Contour Value floating point number Default: 0.000000 -ZMAX: Maximum Contour Value floating point number Default: 1000.000000 -ZSTEP: Contour Interval floating point number Minimum: 0.000000 Default: 100.000000 -ZLIST: Contour Values text Default: 0, 10, 20, 50, 100, 200, 500, 1000