Package org.locationtech.jtslab.snapround

Class GeometrySnapRounder

java.lang.Object

org.locationtech.jtslab.snapround.GeometrySnapRounder

public class GeometrySnapRounder
extends java.lang.Object

Nodes a Geometry using Snap-Rounding to a given PrecisionModel.

• Point geometries are not handled. They are skipped if present in the input.
• Linestrings which collapse to a point due to snapping are removed.
• Polygonal output may not be valid. Invalid output is due to the introduction of topology collapses. This should be straightforward to clean using standard heuristics (e.g. buffer(0) ).

The input geometry coordinates are expected to be rounded to the given precision model. This class does not perform that function. GeometryPrecisionReducer may be used to do this.

Constructor Summary

Constructors

Constructor	Description
GeometrySnapRounder(PrecisionModel pm)	Creates a new snap-rounder which snap-rounds to a grid specified by the given PrecisionModel.

Method Summary

Modifier and Type	Method	Description
Geometry	execute(Geometry geom)	Snap-rounds the given geometry.
void	setLineworkOnly(boolean isLineworkOnly)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GeometrySnapRounder

public GeometrySnapRounder(PrecisionModel pm)

Creates a new snap-rounder which snap-rounds to a grid specified by the given PrecisionModel.

Parameters:

pm - the precision model for the grid to snap-round to

Method Detail

setLineworkOnly

public void setLineworkOnly(boolean isLineworkOnly)

execute

public Geometry execute(Geometry geom)

Snap-rounds the given geometry.

Parameters:

geom -

Returns: