SAGA-GIS Module Library Documentation (v2.3.0)

Module Geographic Distances

Calculates for all segments of the input lines the planar, great elliptic, and loxodrome distance and re-projects the latter two to the projection of the input lines.
Projection routines make use of the Proj.4 Cartographic Projections library.
Proj.4 was originally developed by Gerald Evenden and later continued by the United States Department of the Interior, Geological Survey (USGS).
Proj.4 Version is Rel. 4.7.1, 23 September 2009
Proj.4 Homepage

Parameters

 NameTypeIdentifierDescriptionConstraints
InputSegmentsShapes (input)PLANAR--
OutputGreat EllipticShapes (output)ORTHODROME--
LoxodromeShapes (output)LOXODROME--
OptionsEpsilonFloating pointEPSILONdefines the maximum resolution [km] for the re-projected distance segmentsMinimum: 1.000000
Default: 100.000000

Command-line

Usage: saga_cmd pj_proj4 20 [-PLANAR <str>] [-ORTHODROME <str>] [-LOXODROME <str>] [-EPSILON <double>]
  -PLANAR:<str>    	Segments
	Shapes (input)
  -ORTHODROME:<str>	Great Elliptic
	Shapes (output)
  -LOXODROME:<str> 	Loxodrome
	Shapes (output)
  -EPSILON:<double>	Epsilon
	Floating point
	Minimum: 1.000000
	Default: 100.000000