Shapes Buffer

Author: O.Conrad, V.Wichmann (c) 2008-2025
Menu: Shapes | Tools

Description

The tool allows one to buffer point, line and polygon shapes layers. Uses the free and open source software library Clipper created by Angus Johnson.

References

Clipper Homepage

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Shapes	shapes, input	`SHAPES`	-	-
Output	Buffer	shapes, output	`BUFFER`	-	-
Options	Buffer Distance	table field	`DIST_FIELD`	-	-
	Default	floating point number	`DIST_FIELD_DEFAULT`	default value if no attribute has been selected	Minimum: 0.000000 Default: 100.000000
	Scaling Factor for Attribute Value	floating point number	`DIST_SCALE`	-	Minimum: 0.000000 Default: 1.000000
	Dissolve Buffers	boolean	`DISSOLVE`	-	Default: 1
	Number of Buffer Zones	integer number	`NZONES`	-	Minimum: 1 Default: 1
	Inner Buffer	boolean	`POLY_INNER`	-	Default: 0
	Arc Vertex Distance [Degree]	floating point number	`DARC`	-	Minimum: 0.010000 Maximum: 45.000000 Default: 5.000000
	Join Type	choice	`JOIN_TYPE`	-	Available Choices: [0] Square [1] Bevel [2] Round [3] Miter Default: 2
	End Type	choice	`END_TYPE`	-	Available Choices: [0] Polygon [1] Joined [2] Butt [3] Square [4] Round Default: 4

Command Line


Usage: saga_cmd shapes_tools 18 [-SHAPES ] [-BUFFER ] [-DIST_FIELD ] [-DIST_FIELD_DEFAULT ] [-DIST_SCALE ] [-DISSOLVE ] [-NZONES ] [-POLY_INNER ] [-DARC ] [-JOIN_TYPE ] [-END_TYPE ]
  -SHAPES:                  Shapes
	shapes, input
  -BUFFER:                  Buffer
	shapes, output
  -DIST_FIELD:              Buffer Distance
	table field
  -DIST_FIELD_DEFAULT:   Default
	floating point number
	Minimum: 0.000000
	Default: 100.000000
  -DIST_SCALE:
                                 Scaling Factor for Attribute Value
                                 	floating point number
                                 	Minimum: 0.000000
                                 	Default: 1.000000
  -DISSOLVE:                Dissolve Buffers
	boolean
	Default: 1
  -NZONES:                  Number of Buffer Zones
	integer number
	Minimum: 1
	Default: 1
  -POLY_INNER:              Inner Buffer
	boolean
	Default: 0
  -DARC:
                                 Arc Vertex Distance [Degree]
                                 	floating point number
                                 	Minimum: 0.010000
                                 	Maximum: 45.000000
                                 	Default: 5.000000
  -JOIN_TYPE:
                                 Join Type
                                 	choice
                                 	Available Choices:
                                 	[0] Square
                                 	[1] Bevel
                                 	[2] Round
                                 	[3] Miter
                                 	Default: 2
  -END_TYPE:
                                 End Type
                                 	choice
                                 	Available Choices:
                                 	[0] Polygon
                                 	[1] Joined
                                 	[2] Butt
                                 	[3] Square
                                 	[4] Round
                                 	Default: 4