mirror of
https://github.com/osm2pgsql-dev/osm2pgsql.git
synced 2025-08-19 16:28:16 +00:00
5645aef1aa
routes which I just copied from the gravitystorm code. For normal relations like bus routes it should work also. To actually use bicycle relations the user will need to uncomment the relevent columns in the style file.
251 lines
8.2 KiB
C++
251 lines
8.2 KiB
C++
/*
|
|
#-----------------------------------------------------------------------------
|
|
# Part of osm2pgsql utility
|
|
#-----------------------------------------------------------------------------
|
|
# By Artem Pavlenko, Copyright 2007
|
|
#
|
|
# This program is free software; you can redistribute it and/or
|
|
# modify it under the terms of the GNU General Public License
|
|
# as published by the Free Software Foundation; either version 2
|
|
# of the License, or (at your option) any later version.
|
|
#
|
|
# This program 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 General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write to the Free Software
|
|
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
#-----------------------------------------------------------------------------
|
|
*/
|
|
|
|
#include <iostream>
|
|
#include <cstring>
|
|
|
|
#include <geos_c.h>
|
|
|
|
#if (GEOS_VERSION_MAJOR==3)
|
|
/* geos trunk (3.0.0rc) */
|
|
#include <geos/geom/GeometryFactory.h>
|
|
#include <geos/geom/CoordinateSequenceFactory.h>
|
|
#include <geos/geom/Geometry.h>
|
|
#include <geos/geom/LineString.h>
|
|
#include <geos/geom/LinearRing.h>
|
|
#include <geos/geom/MultiLineString.h>
|
|
#include <geos/geom/Polygon.h>
|
|
#include <geos/geom/Point.h>
|
|
#include <geos/io/WKTReader.h>
|
|
#include <geos/io/WKTWriter.h>
|
|
#include <geos/util/GEOSException.h>
|
|
#include <geos/opLinemerge.h>
|
|
using namespace geos::geom;
|
|
using namespace geos::io;
|
|
using namespace geos::util;
|
|
using namespace geos::operation::linemerge;
|
|
#else
|
|
/* geos-2.2.3 */
|
|
#include <geos/geom.h>
|
|
#include <geos/io.h>
|
|
#include <geos/opLinemerge.h>
|
|
using namespace geos;
|
|
#endif
|
|
|
|
#include "build_geometry.h"
|
|
|
|
using namespace std;
|
|
|
|
char *get_wkt_simple(osmNode *nodes, int count, int polygon, double *area, double *int_x, double *int_y) {
|
|
GeometryFactory gf;
|
|
auto_ptr<CoordinateSequence> coords(gf.getCoordinateSequenceFactory()->create(0, 2));
|
|
|
|
try
|
|
{
|
|
for (int i = 0; i < count ; i++) {
|
|
Coordinate c;
|
|
c.x = nodes[i].lon;
|
|
c.y = nodes[i].lat;
|
|
coords->add(c, 0);
|
|
}
|
|
|
|
auto_ptr<Geometry> geom;
|
|
if (polygon && (coords->getSize() >= 4) && (coords->getAt(coords->getSize() - 1).equals2D(coords->getAt(0)))) {
|
|
auto_ptr<LinearRing> shell(gf.createLinearRing(coords.release()));
|
|
geom = auto_ptr<Geometry>(gf.createPolygon(shell.release(),
|
|
new vector<Geometry *>));
|
|
*area = geom->getArea();
|
|
try {
|
|
std::auto_ptr<Point> pt(geom->getInteriorPoint());
|
|
*int_x = pt->getX();
|
|
*int_y = pt->getY();
|
|
} catch (...) {
|
|
// This happens on some unusual polygons, we'll ignore them for now
|
|
//std::cerr << std::endl << "Exception finding interior point" << std::endl;
|
|
*int_x = *int_y = 0.0;
|
|
}
|
|
} else {
|
|
*area = 0;
|
|
*int_x = *int_y = 0;
|
|
if (coords->getSize() < 2)
|
|
return NULL;
|
|
geom = auto_ptr<Geometry>(gf.createLineString(coords.release()));
|
|
}
|
|
|
|
WKTWriter wktw;
|
|
string wkt = wktw.write(geom.get());
|
|
return strdup(wkt.c_str());
|
|
}
|
|
catch (...)
|
|
{
|
|
std::cerr << std::endl << "excepton caught processing way" << std::endl;
|
|
return NULL;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
typedef std::auto_ptr<Geometry> geom_ptr;
|
|
|
|
struct Segment
|
|
{
|
|
Segment(double x0_,double y0_,double x1_,double y1_)
|
|
:x0(x0_),y0(y0_),x1(x1_),y1(y1_) {}
|
|
|
|
double x0;
|
|
double y0;
|
|
double x1;
|
|
double y1;
|
|
};
|
|
|
|
struct Interior
|
|
{
|
|
Interior(double x_, double y_)
|
|
: x(x_), y(y_) {}
|
|
|
|
Interior(Geometry *geom) {
|
|
try {
|
|
std::auto_ptr<Point> pt(geom->getInteriorPoint());
|
|
x = pt->getX();
|
|
y = pt->getY();
|
|
} catch (...) {
|
|
// This happens on some unusual polygons, we'll ignore them for now
|
|
//std::cerr << std::endl << "Exception finding interior point" << std::endl;
|
|
x=y=0.0;
|
|
}
|
|
}
|
|
double x, y;
|
|
};
|
|
|
|
static std::vector<std::string> wkts;
|
|
static std::vector<Interior> interiors;
|
|
static std::vector<double> areas;
|
|
|
|
|
|
char * get_wkt(size_t index)
|
|
{
|
|
// return wkts[index].c_str();
|
|
char *result;
|
|
result = (char*) std::malloc( wkts[index].length() + 1);
|
|
std::strcpy(result, wkts[index].c_str() );
|
|
return result;
|
|
}
|
|
|
|
void get_interior(size_t index, double *y, double *x)
|
|
{
|
|
*x = interiors[index].x;
|
|
*y = interiors[index].y;
|
|
}
|
|
|
|
double get_area(size_t index)
|
|
{
|
|
return areas[index];
|
|
}
|
|
|
|
void clear_wkts()
|
|
{
|
|
wkts.clear();
|
|
interiors.clear();
|
|
areas.clear();
|
|
}
|
|
|
|
size_t build_geometry(int osm_id, struct osmNode **xnodes, int *xcount, int make_polygon) {
|
|
size_t wkt_size = 0;
|
|
std::auto_ptr<std::vector<Geometry*> > lines(new std::vector<Geometry*>);
|
|
GeometryFactory gf;
|
|
auto_ptr<Geometry> geom;
|
|
|
|
try
|
|
{
|
|
for (int c=0; xnodes[c]; c++) {
|
|
auto_ptr<CoordinateSequence> coords(gf.getCoordinateSequenceFactory()->create(0, 2));
|
|
for (int i = 0; i < xcount[c]; i++) {
|
|
struct osmNode *nodes = xnodes[c];
|
|
Coordinate c;
|
|
c.x = nodes[i].lon;
|
|
c.y = nodes[i].lat;
|
|
coords->add(c, 0);
|
|
}
|
|
if (coords->getSize() > 1) {
|
|
geom = auto_ptr<Geometry>(gf.createLineString(coords.release()));
|
|
lines->push_back(geom.release());
|
|
}
|
|
}
|
|
|
|
//geom_ptr segment(0);
|
|
geom_ptr mline (gf.createMultiLineString(lines.release()));
|
|
//geom_ptr noded (segment->Union(mline.get()));
|
|
LineMerger merger;
|
|
//merger.add(noded.get());
|
|
merger.add(mline.get());
|
|
std::auto_ptr<std::vector<LineString *> > merged(merger.getMergedLineStrings());
|
|
WKTWriter writer;
|
|
|
|
std::auto_ptr<LinearRing> exterior;
|
|
std::auto_ptr<std::vector<Geometry*> > interior(new std::vector<Geometry*>);
|
|
double ext_area = 0.0;
|
|
for (unsigned i=0 ;i < merged->size(); ++i)
|
|
{
|
|
std::auto_ptr<LineString> pline ((*merged ) [i]);
|
|
if (make_polygon && pline->getNumPoints() > 3 && pline->isClosed())
|
|
{
|
|
std::auto_ptr<LinearRing> ring(gf.createLinearRing(pline->getCoordinates()));
|
|
std::auto_ptr<Polygon> poly(gf.createPolygon(gf.createLinearRing(pline->getCoordinates()),0));
|
|
double poly_area = poly->getArea();
|
|
if (poly_area > ext_area) {
|
|
if (ext_area > 0.0)
|
|
interior->push_back(exterior.release());
|
|
ext_area = poly_area;
|
|
exterior = ring;
|
|
//std::cerr << "Found bigger ring, area(" << ext_area << ") " << writer.write(poly.get()) << std::endl;
|
|
} else {
|
|
interior->push_back(ring.release());
|
|
//std::cerr << "Found inner ring, area(" << poly->getArea() << ") " << writer.write(poly.get()) << std::endl;
|
|
}
|
|
} else {
|
|
//std::cerr << "polygon(" << osm_id << ") is no good: points(" << pline->getNumPoints() << "), closed(" << pline->isClosed() << "). " << writer.write(pline.get()) << std::endl;
|
|
std::string text = writer.write(pline.get());
|
|
wkts.push_back(text);
|
|
interiors.push_back(Interior(0,0));
|
|
areas.push_back(0.0);
|
|
wkt_size++;
|
|
}
|
|
}
|
|
|
|
if (ext_area > 0.0) {
|
|
std::auto_ptr<Polygon> poly(gf.createPolygon(exterior.release(), interior.release()));
|
|
std::string text = writer.write(poly.get());
|
|
//std::cerr << "Result: area(" << poly->getArea() << ") " << writer.write(poly.get()) << std::endl;
|
|
wkts.push_back(text);
|
|
interiors.push_back(Interior(poly.get()));
|
|
areas.push_back(ext_area);
|
|
wkt_size++;
|
|
}
|
|
}
|
|
catch (...)
|
|
{
|
|
std::cerr << std::endl << "excepton caught processing way id=" << osm_id << std::endl;
|
|
wkt_size = 0;
|
|
}
|
|
return wkt_size;
|
|
}
|