/*
* The JTS Topology Suite is a collection of Java classes that
* implement the fundamental operations required to validate a given
* geo-spatial data set to a known topological specification.
*
* Copyright (C) 2001 Vivid Solutions
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For more information, contact:
*
* Vivid Solutions
* Suite #1A
* 2328 Government Street
* Victoria BC V8T 5G5
* Canada
*
* (250)385-6040
* www.vividsolutions.com
*/
package com.vividsolutions.jts.geom;
import com.vividsolutions.jts.operation.BoundaryOp;
/**
* Basic implementation of <code>MultiLineString</code>.
*
*@version 1.7
*/
public class MultiLineString
extends GeometryCollection
implements Lineal
{
private static final long serialVersionUID = 8166665132445433741L;
/**
* Constructs a <code>MultiLineString</code>.
*
*@param lineStrings the <code>LineString</code>s for this <code>MultiLineString</code>
* , or <code>null</code> or an empty array to create the empty geometry.
* Elements may be empty <code>LineString</code>s, but not <code>null</code>
* s.
*@param precisionModel the specification of the grid of allowable points
* for this <code>MultiLineString</code>
*@param SRID the ID of the Spatial Reference System used by this
* <code>MultiLineString</code>
* @deprecated Use GeometryFactory instead
*/
public MultiLineString(LineString[] lineStrings, PrecisionModel precisionModel, int SRID) {
super(lineStrings, new GeometryFactory(precisionModel, SRID));
}
/**
* @param lineStrings
* the <code>LineString</code>s for this <code>MultiLineString</code>,
* or <code>null</code> or an empty array to create the empty
* geometry. Elements may be empty <code>LineString</code>s,
* but not <code>null</code>s.
*/
public MultiLineString(LineString[] lineStrings, GeometryFactory factory) {
super(lineStrings, factory);
}
public int getDimension() {
return 1;
}
public int getBoundaryDimension() {
if (isClosed()) {
return Dimension.FALSE;
}
return 0;
}
public String getGeometryType() {
return "MultiLineString";
}
public boolean isClosed() {
if (isEmpty()) {
return false;
}
for (int i = 0; i < geometries.length; i++) {
if (!((LineString) geometries[i]).isClosed()) {
return false;
}
}
return true;
}
/**
* Gets the boundary of this geometry.
* The boundary of a lineal geometry is always a zero-dimensional geometry (which may be empty).
*
* @return the boundary geometry
* @see Geometry#getBoundary
*/
public Geometry getBoundary()
{
return (new BoundaryOp(this)).getBoundary();
}
/**
* Creates a {@link MultiLineString} in the reverse
* order to this object.
* Both the order of the component LineStrings
* and the order of their coordinate sequences
* are reversed.
*
* @return a {@link MultiLineString} in the reverse order
*/
public Geometry reverse()
{
int nLines = geometries.length;
LineString[] revLines = new LineString[nLines];
for (int i = 0; i < geometries.length; i++) {
revLines[nLines - 1 - i] = (LineString)geometries[i].reverse();
}
return getFactory().createMultiLineString(revLines);
}
public boolean equalsExact(Geometry other, double tolerance) {
if (!isEquivalentClass(other)) {
return false;
}
return super.equalsExact(other, tolerance);
}
}