Module Contour Lines from Grid
Derive contour lines (isolines) from grid. 
- Author: O.Conrad (c) 2001
 
- Specification: grid
 
- Menu: Shapes|Grid|Vectorization
 
Parameters
|   | Name | Type | Identifier | Description | Constraints | 
| Input | Grid | Grid (input) | GRID | - | - | 
| Output | Contour | Shapes (output) | CONTOUR | - | - | 
 | Polygons (*) | Shapes (optional output) | POLYGONS | - | - | 
| Options | Vertex Type | Choice | VERTEX | choose vertex type for resulting contours | Available Choices: [0] x, y [1] x, y, z Default: 0 | 
 | Interpolation Scale | Floating point | SCALE | set greater one for line smoothing | Minimum: 0.000000 Default: 1.000000 | 
 | Split Parts | Boolean | LINE_PARTS | - | Default: 1 | 
 | Split Polygon Parts | Boolean | POLY_PARTS | - | Default: 0 | 
 | Minimum Contour Value | Floating point | ZMIN | - | Default: 0.000000 | 
 | Maximum Contour Value | Floating point | ZMAX | - | Default: 10000.000000 | 
 | Equidistance | Floating point | ZSTEP | - | Minimum: 0.000000 Default: 10.000000 | 
| (*) optional | 
Command-line
Usage: saga_cmd shapes_grid 5 [-GRID <str>] [-CONTOUR <str>] [-POLYGONS <str>] [-VERTEX <str>] [-SCALE <str>] [-LINE_PARTS <str>] [-POLY_PARTS <str>] [-ZMIN <str>] [-ZMAX <str>] [-ZSTEP <str>]
  -GRID:<str>      	Grid
	Grid (input)
  -CONTOUR:<str>   	Contour
	Shapes (output)
  -POLYGONS:<str>  	Polygons
	Shapes (optional output)
  -VERTEX:<str>    	Vertex Type
	Choice
	Available Choices:
	[0] x, y
	[1] x, y, z
	Default: 0
  -SCALE:<str>     	Interpolation Scale
	Floating point
	Minimum: 0.000000
	Default: 1.000000
  -LINE_PARTS:<str>	Split Parts
	Boolean
	Default: 1
  -POLY_PARTS:<str>	Split Polygon Parts
	Boolean
	Default: 0
  -ZMIN:<str>      	Minimum Contour Value
	Floating point
	Default: 0.000000
  -ZMAX:<str>      	Maximum Contour Value
	Floating point
	Default: 10000.000000
  -ZSTEP:<str>     	Equidistance
	Floating point
	Minimum: 0.000000
	Default: 10.000000