com.vividsolutions.jts.precision
Class SimpleGeometryPrecisionReducer

java.lang.Object
  extended bycom.vividsolutions.jts.precision.SimpleGeometryPrecisionReducer

public class SimpleGeometryPrecisionReducer
extends java.lang.Object

Reduces the precision of a Geometry according to the supplied PrecisionModel, without attempting to preserve valid topology.

The topology of the resulting geometry may be invalid if topological collapse occurs due to coordinates being shifted. It is up to the client to check this and handle it if necessary. Collapses may not matter for some uses. An example is simplifying the input to the buffer algorithm. The buffer algorithm does not depend on the validity of the input geometry.

Version:
1.7

Constructor Summary
SimpleGeometryPrecisionReducer(PrecisionModel pm)
           
 
Method Summary
 Geometry reduce(Geometry geom)
           
 void setChangePrecisionModel(boolean changePrecisionModel)
          Sets whether the PrecisionModel of the new reduced Geometry will be changed to be the PrecisionModel supplied to specify the reduction.
 void setRemoveCollapsedComponents(boolean removeCollapsed)
          Sets whether the reduction will result in collapsed components being removed completely, or simply being collapsed to an (invalid) Geometry of the same type.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SimpleGeometryPrecisionReducer

public SimpleGeometryPrecisionReducer(PrecisionModel pm)
Method Detail

setRemoveCollapsedComponents

public void setRemoveCollapsedComponents(boolean removeCollapsed)
Sets whether the reduction will result in collapsed components being removed completely, or simply being collapsed to an (invalid) Geometry of the same type. The default is to remove collapsed components.

Parameters:
removeCollapsed - if true collapsed components will be removed

setChangePrecisionModel

public void setChangePrecisionModel(boolean changePrecisionModel)
Sets whether the PrecisionModel of the new reduced Geometry will be changed to be the PrecisionModel supplied to specify the reduction. The default is to not change the precision model

Parameters:
changePrecisionModel - if true the precision model of the created Geometry will be the the precisionModel supplied in the constructor.

reduce

public Geometry reduce(Geometry geom)