Transect through polygon shapefile

Author: Copyrights (c) 2009 Johan Van de Wauw
Menu: Shapes | Lines | Transects

Description

Transect for lines and polygon shapefiles The goal of this tool is to create a transect along a line through a polygon map. Eg |____ST1_____!_ST2_!__ST1__!_______ST#_____| (Soil type 1 etc...) This is done by creating a table with the ID of each line, the distance to the starting point and the different transects:

|  line_id  |  start  |  end  |  code/field  |
|    0      |    0    |  124  |     ST1      |
|    0      |   124   |  300  |     ST2      |
|    0      |   300   | 1223  |     ST1      |
|    0      |  1223   | 2504  |     ST3      |
|    1      |    0    |  200  |     ST4      |
|   ...     |   ...   |  ...  |     ...      |

The tool requires an input shape with all the line transects [Transect_Line] and a polygon theme [Theme]. You also have to select which field you want to have in the resulting table [Transect_Result]. This can be an ID of the polygon theme if you want to link the tables later on, or any other field [Theme_Field].

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Line Transect(s)	shapes, input	`TRANSECT`	-	-
Input	Theme	shapes, input	`THEME`	-	-
Output	Result table	table, output	`TRANSECT_RESULT`	-	-
Options	Theme Field	table field	`THEME_FIELD`	-	-

Command Line


Usage: saga_cmd shapes_transect 0 [-TRANSECT ] [-THEME ] [-THEME_FIELD ] [-TRANSECT_RESULT ]
  -TRANSECT:       	Line Transect(s)
	shapes, input
  -THEME:          	Theme
	shapes, input
  -THEME_FIELD:    	Theme Field
	table field
  -TRANSECT_RESULT:	Result table
	table, output