SAGA-GIS Tool Library Documentation (v7.2.0)

Tool Vector Ruggedness Measure (VRM)

Parameters

 NameTypeIdentifierDescriptionConstraints
InputElevationGrid (input)DEM--
OutputVector Terrain Ruggedness (VRM)Grid (output)VRM--
OptionsGrid systemGrid systemPARAMETERS_GRID_SYSTEM--
Search ModeChoiceMODE-Available Choices:
[0] Square
[1] Circle
Default: 1
Search RadiusIntegerRADIUSradius in cellsMinimum: 1
Default: 1
Weighting FunctionChoiceDW_WEIGHTING-Available Choices:
[0] no distance weighting
[1] inverse distance to a power
[2] exponential
[3] gaussian weighting
Default: 0
Inverse Distance Weighting PowerFloating pointDW_IDW_POWER-Minimum: 0.000000
Default: 1.000000
Inverse Distance OffsetBooleanDW_IDW_OFFSETCalculates weights for distance plus one, avoiding division by zero for zero distancesDefault: 1
Gaussian and Exponential Weighting BandwidthFloating pointDW_BANDWIDTH-Minimum: 0.000000
Default: 75.000000

Command-line

Usage: saga_cmd ta_morphometry 17 [-DEM <str>] [-VRM <str>] [-MODE <str>] [-RADIUS <num>] [-DW_WEIGHTING <str>] [-DW_IDW_POWER <double>] [-DW_IDW_OFFSET <str>] [-DW_BANDWIDTH <double>]
  -DEM:<str>            	Elevation
	Grid (input)
  -VRM:<str>            	Vector Terrain Ruggedness (VRM)
	Grid (output)
  -MODE:<str>           	Search Mode
	Choice
	Available Choices:
	[0] Square
	[1] Circle
	Default: 1
  -RADIUS:<num>         	Search Radius
	Integer
	Minimum: 1
	Default: 1
  -DW_WEIGHTING:<str>   	Weighting Function
	Choice
	Available Choices:
	[0] no distance weighting
	[1] inverse distance to a power
	[2] exponential
	[3] gaussian weighting
	Default: 0
  -DW_IDW_POWER:<double>	Inverse Distance Weighting Power
	Floating point
	Minimum: 0.000000
	Default: 1.000000
  -DW_IDW_OFFSET:<str>  	Inverse Distance Offset
	Boolean
	Default: 1
  -DW_BANDWIDTH:<double>	Gaussian and Exponential Weighting Bandwidth
	Floating point
	Minimum: 0.000000
	Default: 75.000000