Tool Name	Polygon Dissolve
Tool ID	5
Library ID	shapes_polygons
Version	1.0
Author(s)	O.Conrad (c) 2008

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	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