Polygon Dissolve

Author: O.Conrad (c) 2008
Menu: Shapes | Polygons

Description

Merges polygons, which share the same attribute value, and (optionally) dissolves borders between adjacent polygon parts. If no attribute or combination of attributes is chosen, all polygons will be merged. Uses the free and open source software library Clipper created by Angus Johnson.

References

Clipper Homepage

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Polygons	shapes, input	`POLYGONS`	-	-
Output	Dissolved Polygons	shapes, output	`DISSOLVED`	-	-
Options	Dissolve Field(s)	table fields	`FIELDS`	-	-
	Statistics Field(s)	table fields	`STATISTICS`	-	-
	Sum	boolean	`STAT_SUM`	-	Default: 0
	Mean	boolean	`STAT_AVG`	-	Default: 1
	Minimum	boolean	`STAT_MIN`	-	Default: 0
	Maximum	boolean	`STAT_MAX`	-	Default: 0
	Range	boolean	`STAT_RNG`	-	Default: 0
	Deviation	boolean	`STAT_DEV`	-	Default: 0
	Variance	boolean	`STAT_VAR`	-	Default: 0
	Listing	boolean	`STAT_LST`	-	Default: 0
	Count	boolean	`STAT_NUM`	-	Default: 0
	Field Naming	choice	`STAT_NAMING`	-	Available Choices: [0] variable type + original name [1] original name + variable type [2] original name [3] variable type Default: 0
	Keep Boundaries	boolean	`BND_KEEP`	-	Default: 0
	Minimum Area	floating point number	`MIN_AREA`	-	Minimum: 0.000000 Default: 0.000000
	Split Distinct Polygons	boolean	`SPLIT_DISTINCT`	-	Default: 0

Command Line


Usage: saga_cmd shapes_polygons 5 [-POLYGONS ] [-DISSOLVED ] [-FIELDS ] [-STATISTICS ] [-STAT_SUM ] [-STAT_AVG ] [-STAT_MIN ] [-STAT_MAX ] [-STAT_RNG ] [-STAT_DEV ] [-STAT_VAR ] [-STAT_LST ] [-STAT_NUM ] [-STAT_NAMING ] [-BND_KEEP ] [-MIN_AREA ] [-SPLIT_DISTINCT ]
  -POLYGONS:      	Polygons
	shapes, input
  -DISSOLVED:     	Dissolved Polygons
	shapes, output
  -FIELDS:        	Dissolve Field(s)
	table fields
  -STATISTICS:    	Statistics Field(s)
	table fields
  -STAT_SUM:      	Sum
	boolean
	Default: 0
  -STAT_AVG:      	Mean
	boolean
	Default: 1
  -STAT_MIN:      	Minimum
	boolean
	Default: 0
  -STAT_MAX:      	Maximum
	boolean
	Default: 0
  -STAT_RNG:      	Range
	boolean
	Default: 0
  -STAT_DEV:      	Deviation
	boolean
	Default: 0
  -STAT_VAR:      	Variance
	boolean
	Default: 0
  -STAT_LST:      	Listing
	boolean
	Default: 0
  -STAT_NUM:      	Count
	boolean
	Default: 0
  -STAT_NAMING:   	Field Naming
	choice
	Available Choices:
	[0] variable type + original name
	[1] original name + variable type
	[2] original name
	[3] variable type
	Default: 0
  -BND_KEEP:      	Keep Boundaries
	boolean
	Default: 0
  -MIN_AREA:   	Minimum Area
	floating point number
	Minimum: 0.000000
	Default: 0.000000
  -SPLIT_DISTINCT:	Split Distinct Polygons
	boolean
	Default: 0