SAGA-GIS Tool Library Documentation (v8.4.1)

Tool Visibility Analysis

This tool performs a visibility analysis using light source or observer points from a points layer.

Parameters

 NameTypeIdentifierDescriptionConstraints
InputElevationGrid, inputELEVATION--
PointsShapes, inputPOINTSObserver points.-
OutputVisibilityGrid, outputVISIBILITY--
OptionsGrid SystemGrid systemPARAMETERS_GRID_SYSTEM--
UnitChoiceMETHOD-Available Choices:
[0] Visibility
[1] Shade
[2] Distance
[3] Size
Default: 1
Ignore No-DataBooleanNODATAIgnore elevations that have been marked as no-data.Default: 0
Height (*)Table fieldHEIGHTHeight of the light source or observer above ground.-
DefaultFloating pointHEIGHT_DEFAULTdefault value if no attribute has been selectedMinimum: 0.000000
Default: 10.000000
(*) optional

Command-line

Usage: saga_cmd ta_lighting 6 [-ELEVATION <str>] [-VISIBILITY <str>] [-METHOD <str>] [-NODATA <str>] [-POINTS <str>] [-HEIGHT <str>] [-HEIGHT_DEFAULT <double>]
  -ELEVATION:<str>        	Elevation
	Grid, input
  -VISIBILITY:<str>       	Visibility
	Grid, output
  -METHOD:<str>           	Unit
	Choice
	Available Choices:
	[0] Visibility
	[1] Shade
	[2] Distance
	[3] Size
	Default: 1
  -NODATA:<str>           	Ignore No-Data
	Boolean
	Default: 0
  -POINTS:<str>           	Points
	Shapes, input
  -HEIGHT:<str>           	Height
	Table field
  -HEIGHT_DEFAULT:<double>	Default
	Floating point
	Minimum: 0.000000
	Default: 10.000000