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JTS Topology Suite version 1.13 | ||||||||
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java.lang.Objectcom.vividsolutions.jts.simplify.TopologyPreservingSimplifier
public class TopologyPreservingSimplifier
Simplifies a geometry and ensures that the result is a valid geometry having the same dimension and number of components as the input, and with the components having the same topological relationship.
If the input is a polygonal geometry
( Polygon
or MultiPolygon
):
For all geometry types, the result will contain enough vertices to ensure validity. For polygons and closed linear geometries, the result will have at least 4 vertices; for open linestrings the result will have at least 2 vertices.
All geometry types are handled. Empty and point geometries are returned unchanged.
The simplification uses a maximum-distance difference algorithm similar to the Douglas-Peucker algorithm.
DouglasPeuckerSimplifier
Constructor Summary | |
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TopologyPreservingSimplifier(Geometry inputGeom)
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Method Summary | |
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Geometry |
getResultGeometry()
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void |
setDistanceTolerance(double distanceTolerance)
Sets the distance tolerance for the simplification. |
static Geometry |
simplify(Geometry geom,
double distanceTolerance)
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public TopologyPreservingSimplifier(Geometry inputGeom)
Method Detail |
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public static Geometry simplify(Geometry geom, double distanceTolerance)
public void setDistanceTolerance(double distanceTolerance)
distanceTolerance
- the approximation tolerance to usepublic Geometry getResultGeometry()
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JTS Topology Suite version 1.13 | ||||||||
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