SAGA-GIS Tool Library Documentation (v9.1.2)

Tool Fragmentation Classes from Density and Connectivity

Fragmentation classes:
(1) interior, if Density = 1.0
(2) undetermined, if Density > 0.6 and Density = Connectivity
(3) perforated, if Density > 0.6 and Density - Connectivity > 0
(4) edge, if Density > 0.6 and Density - Connectivity < 0
(5) transitional, if 0.4 < Density < 0.6
(6) patch, if Density < 0.4


References


Parameters

 NameTypeIdentifierDescriptionConstraints
InputDensity [Percent]Grid, inputDENSITYDensity Index (Pf).-
Connectivity [Percent]Grid, inputCONNECTIVITYConnectivity Index (Pff).-
OutputFragmentationGrid, outputFRAGMENTATIONFragmentation Index-
OptionsGrid SystemGrid systemPARAMETERS_GRID_SYSTEM--
Add BorderBooleanBORDER-Default: 0
Connectivity WeightingFloating pointWEIGHT-Minimum: 0.000000
Default: 1.100000
Minimum Density [Percent]Floating pointDENSITY_MIN-Minimum: 0.000000
Maximum: 100.000000
Default: 10.000000
Minimum Density for Interior Forest [Percent]Floating pointDENSITY_INTif less than 100, it is distinguished between interior and core forestMinimum: 0.000000
Maximum: 100.000000
Default: 99.000000

Command-line

Usage: saga_cmd grid_analysis 17 [-DENSITY <str>] [-CONNECTIVITY <str>] [-FRAGMENTATION <str>] [-BORDER <str>] [-WEIGHT <double>] [-DENSITY_MIN <double>] [-DENSITY_INT <double>]
  -DENSITY:<str>       	Density [Percent]
	Grid, input
  -CONNECTIVITY:<str>  	Connectivity [Percent]
	Grid, input
  -FRAGMENTATION:<str> 	Fragmentation
	Grid, output
  -BORDER:<str>        	Add Border
	Boolean
	Default: 0
  -WEIGHT:<double>     	Connectivity Weighting
	Floating point
	Minimum: 0.000000
	Default: 1.100000
  -DENSITY_MIN:<double>	Minimum Density [Percent]
	Floating point
	Minimum: 0.000000
	Maximum: 100.000000
	Default: 10.000000
  -DENSITY_INT:<double>	Minimum Density for Interior Forest [Percent]
	Floating point
	Minimum: 0.000000
	Maximum: 100.000000
	Default: 99.000000