98 lines
2.8 KiB
C++
98 lines
2.8 KiB
C++
/**********************************************************************
|
|
*
|
|
* GEOS - Geometry Engine Open Source
|
|
* http://geos.osgeo.org
|
|
*
|
|
* Copyright (C) 2006 Refractions Research 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.
|
|
*
|
|
*
|
|
**********************************************************************
|
|
*
|
|
* Last port: geom/prep/PreparedLineStringIntersects.java r338 (JTS-1.12)
|
|
*
|
|
**********************************************************************/
|
|
|
|
#pragma once
|
|
|
|
#include <geos/geom/prep/PreparedLineString.h>
|
|
#include <geos/algorithm/PointLocator.h>
|
|
#include <geos/geom/util/ComponentCoordinateExtracter.h>
|
|
#include <geos/geom/Coordinate.h>
|
|
#include <geos/noding/SegmentStringUtil.h>
|
|
|
|
namespace geos {
|
|
namespace geom { // geos::geom
|
|
namespace prep { // geos::geom::prep
|
|
|
|
/**
|
|
* \brief
|
|
* Computes the <tt>intersects</tt> spatial relationship predicate
|
|
* for a target {@link PreparedLineString} relative to all other
|
|
* {@link Geometry} classes.
|
|
*
|
|
* Uses short-circuit tests and indexing to improve performance.
|
|
*
|
|
* @author Martin Davis
|
|
*
|
|
*/
|
|
class PreparedLineStringIntersects {
|
|
public:
|
|
|
|
/**
|
|
* Computes the intersects predicate between a {@link PreparedLineString}
|
|
* and a {@link Geometry}.
|
|
*
|
|
* @param prep the prepared linestring
|
|
* @param geom a test geometry
|
|
* @return true if the linestring intersects the geometry
|
|
*/
|
|
static bool
|
|
intersects(PreparedLineString& prep, const geom::Geometry* geom)
|
|
{
|
|
PreparedLineStringIntersects op(prep);
|
|
return op.intersects(geom);
|
|
}
|
|
|
|
/**
|
|
* \todo FIXME - mloskot: Why not taking linestring through const reference?
|
|
*/
|
|
PreparedLineStringIntersects(PreparedLineString& prep)
|
|
: prepLine(prep)
|
|
{ }
|
|
|
|
/**
|
|
* Tests whether this geometry intersects a given geometry.
|
|
*
|
|
* @param g the test geometry
|
|
* @return true if the test geometry intersects
|
|
*/
|
|
bool intersects(const geom::Geometry* g) const;
|
|
|
|
protected:
|
|
PreparedLineString& prepLine;
|
|
|
|
/**
|
|
* Tests whether any representative point of the test Geometry intersects
|
|
* the target geometry.
|
|
* Only handles test geometries which are Puntal (dimension 0)
|
|
*
|
|
* @param testGeom a Puntal geometry to test
|
|
* @return true if any point of the argument intersects the prepared geometry
|
|
*/
|
|
bool isAnyTestPointInTarget(const geom::Geometry* testGeom) const;
|
|
|
|
// Declare type as noncopyable
|
|
PreparedLineStringIntersects(const PreparedLineStringIntersects& other) = delete;
|
|
PreparedLineStringIntersects& operator=(const PreparedLineStringIntersects& rhs) = delete;
|
|
};
|
|
|
|
} // namespace geos::geom::prep
|
|
} // namespace geos::geom
|
|
} // namespace geos
|
|
|