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/**********************************************************************
* $Id: MultiLineString.cpp,v 1.23 2004/09/12 03:51:27 pramsey Exp $
*
* GEOS - Geometry Engine Open Source
* http://geos.refractions.net
*
* Copyright (C) 2001-2002 Vivid Solutions Inc.
*
* This is free software; you can redistribute and/or modify it under
* the terms of the GNU Lesser General Public Licence as published
* by the Free Software Foundation.
* See the COPYING file for more information.
*
**********************************************************************
* $Log: MultiLineString.cpp,v $
* Revision 1.23 2004/09/12 03:51:27 pramsey
* Casting changes to allow OS/X compilation.
*
* Revision 1.22 2004/07/22 08:45:50 strk
* Documentation updates, memory leaks fixed.
*
* Revision 1.21 2004/07/08 19:34:49 strk
* Mirrored JTS interface of CoordinateSequence, factory and
* default implementations.
* Added DefaultCoordinateSequenceFactory::instance() function.
*
* Revision 1.20 2004/07/06 17:58:22 strk
* Removed deprecated Geometry constructors based on PrecisionModel and
* SRID specification. Removed SimpleGeometryPrecisionReducer capability
* of changing Geometry's factory. Reverted Geometry::factory member
* to be a reference to external factory.
*
* Revision 1.19 2004/07/05 10:50:20 strk
* deep-dopy construction taken out of Geometry and implemented only
* in GeometryFactory.
* Deep-copy geometry construction takes care of cleaning up copies
* on exception.
* Implemented clone() method for CoordinateSequence
* Changed createMultiPoint(CoordinateSequence) signature to reflect
* copy semantic (by-ref instead of by-pointer).
* Cleaned up documentation.
*
* Revision 1.18 2004/07/02 13:28:26 strk
* Fixed all #include lines to reflect headers layout change.
* Added client application build tips in README.
*
* Revision 1.17 2004/07/01 14:12:44 strk
*
* Geometry constructors come now in two flavors:
* - deep-copy args (pass-by-reference)
* - take-ownership of args (pass-by-pointer)
* Same functionality is available through GeometryFactory,
* including buildGeometry().
*
* Revision 1.16 2004/06/28 21:11:43 strk
* Moved getGeometryTypeId() definitions from geom.h to each geometry module.
* Added holes argument check in Polygon.cpp.
*
* Revision 1.15 2004/05/07 13:04:57 strk
* leak removed in MultiLineString::getBoundary()
*
* Revision 1.14 2004/05/07 09:05:13 strk
* Some const correctness added. Fixed bug in GeometryFactory::createMultiPoint
* to handle NULL CoordinateSequence.
*
* Revision 1.13 2004/04/20 08:52:01 strk
* GeometryFactory and Geometry const correctness.
* Memory leaks removed from SimpleGeometryPrecisionReducer
* and GeometryFactory.
*
* Revision 1.12 2004/04/01 10:44:33 ybychkov
* All "geom" classes from JTS 1.3 upgraded to JTS 1.4
*
* Revision 1.11 2003/11/07 01:23:42 pramsey
* Add standard CVS headers licence notices and copyrights to all cpp and h
* files.
*
*
**********************************************************************/
#include <geos/geom.h>
#include <geos/operation.h>
namespace geos {
/**
* Constructs a <code>MultiLineString</code>.
*
* @param newLines
* the <code>LineStrings</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.
*
* Constructed object will take ownership of
* the vector and its elements.
*/
MultiLineString::MultiLineString(vector<Geometry *> *newLines, const GeometryFactory *factory): GeometryCollection(newLines,factory){}
MultiLineString::~MultiLineString(){}
int MultiLineString::getDimension() const {
return 1;
}
int MultiLineString::getBoundaryDimension() const {
if (isClosed()) {
return Dimension::False;
}
return 0;
}
string MultiLineString::getGeometryType() const {
return "MultiLineString";
}
bool MultiLineString::isClosed() const {
if (isEmpty()) {
return false;
}
for (unsigned int i = 0; i < geometries->size(); i++) {
if (!((LineString *)(*geometries)[i])->isClosed()) {
return false;
}
}
return true;
}
bool MultiLineString::isSimple() const {
IsSimpleOp iso;
Geometry *in = toInternalGeometry(this);
bool issimple = iso.isSimple((MultiLineString *)in);
if ( (MultiLineString *)in != this ) delete(in);
return issimple;
}
Geometry* MultiLineString::getBoundary() const {
if (isEmpty()) {
return getFactory()->createGeometryCollection(NULL);
}
Geometry *in = toInternalGeometry(this);
GeometryGraph gg(0, in);
CoordinateSequence *pts=gg.getBoundaryPoints();
if ( (MultiLineString *)in != this ) delete(in);
Geometry *ret = getFactory()->createMultiPoint(*pts);
delete pts;
return ret;
}
bool
MultiLineString::equalsExact(const Geometry *other, double tolerance) const
{
if (!isEquivalentClass(other)) {
return false;
}
return GeometryCollection::equalsExact(other, tolerance);
}
GeometryTypeId
MultiLineString::getGeometryTypeId() const {
return GEOS_MULTILINESTRING;
}
}
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