278 lines
8.6 KiB
C++
278 lines
8.6 KiB
C++
|
/*****************************************************************************
|
||
|
|
*
|
||
|
|
* This file is part of Mapnik (c++ mapping toolkit)
|
||
|
|
*
|
||
|
|
* Copyright (C) 2007 Artem Pavlenko
|
||
|
|
*
|
||
|
|
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
//$Id$
|
||
|
|
|
||
|
|
#include <mapnik/global.hpp>
|
||
|
|
#include <mapnik/envelope.hpp>
|
||
|
|
#include <mapnik/geometry.hpp>
|
||
|
|
#include <mapnik/feature.hpp>
|
||
|
|
#include <mapnik/feature_layer_desc.hpp>
|
||
|
|
#include <mapnik/wkb.hpp>
|
||
|
|
#include <mapnik/unicode.hpp>
|
||
|
|
|
||
|
|
// ogr
|
||
|
|
#include "ogr_converter.hpp"
|
||
|
|
|
||
|
|
using std::clog;
|
||
|
|
using std::endl;
|
||
|
|
|
||
|
|
using mapnik::feature_ptr;
|
||
|
|
using mapnik::geometry_utils;
|
||
|
|
using mapnik::geometry2d;
|
||
|
|
using mapnik::point_impl;
|
||
|
|
using mapnik::line_string_impl;
|
||
|
|
using mapnik::polygon_impl;
|
||
|
|
|
||
|
|
/*
|
||
|
|
using mapnik::query;
|
||
|
|
using mapnik::Envelope;
|
||
|
|
using mapnik::CoordTransform;
|
||
|
|
using mapnik::Feature;
|
||
|
|
*/
|
||
|
|
|
||
|
|
void ogr_converter::convert_geometry (OGRGeometry* geom, feature_ptr feature, bool multiple_geometries)
|
||
|
|
{
|
||
|
|
switch (wkbFlatten (geom->getGeometryType()))
|
||
|
|
{
|
||
|
|
case wkbPoint:
|
||
|
|
convert_point (static_cast<OGRPoint*>(geom), feature);
|
||
|
|
break;
|
||
|
|
case wkbLineString:
|
||
|
|
convert_linestring (static_cast<OGRLineString*>(geom), feature);
|
||
|
|
break;
|
||
|
|
case wkbPolygon:
|
||
|
|
convert_polygon (static_cast<OGRPolygon*>(geom), feature);
|
||
|
|
break;
|
||
|
|
case wkbMultiPoint:
|
||
|
|
if (multiple_geometries)
|
||
|
|
convert_multipoint_2 (static_cast<OGRMultiPoint*>(geom), feature);
|
||
|
|
else
|
||
|
|
convert_multipoint (static_cast<OGRMultiPoint*>(geom), feature);
|
||
|
|
break;
|
||
|
|
case wkbMultiLineString:
|
||
|
|
if (multiple_geometries)
|
||
|
|
convert_multilinestring_2 (static_cast<OGRMultiLineString*>(geom), feature);
|
||
|
|
else
|
||
|
|
convert_multilinestring (static_cast<OGRMultiLineString*>(geom), feature);
|
||
|
|
|
||
|
|
break;
|
||
|
|
case wkbMultiPolygon:
|
||
|
|
if (multiple_geometries)
|
||
|
|
convert_multipolygon_2 (static_cast<OGRMultiPolygon*>(geom), feature);
|
||
|
|
else
|
||
|
|
convert_multipolygon (static_cast<OGRMultiPolygon*>(geom), feature);
|
||
|
|
break;
|
||
|
|
case wkbGeometryCollection:
|
||
|
|
convert_collection (static_cast<OGRGeometryCollection*>(geom), feature, multiple_geometries);
|
||
|
|
break;
|
||
|
|
case wkbLinearRing:
|
||
|
|
convert_linestring (static_cast<OGRLinearRing*>(geom), feature);
|
||
|
|
break;
|
||
|
|
case wkbNone:
|
||
|
|
case wkbUnknown:
|
||
|
|
default:
|
||
|
|
#ifdef MAPNIK_DEBUG
|
||
|
|
clog << "unknown <ogr> geometry_type=" << wkbFlatten (geom->getGeometryType()) << endl;
|
||
|
|
#endif
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void ogr_converter::convert_point (OGRPoint* geom, feature_ptr feature)
|
||
|
|
{
|
||
|
|
geometry2d* point = new point_impl;
|
||
|
|
point->move_to (geom->getX(), geom->getY());
|
||
|
|
feature->add_geometry (point);
|
||
|
|
}
|
||
|
|
|
||
|
|
void ogr_converter::convert_linestring (OGRLineString* geom, feature_ptr feature)
|
||
|
|
{
|
||
|
|
int num_points = geom->getNumPoints ();
|
||
|
|
geometry2d * line = new line_string_impl;
|
||
|
|
line->set_capacity (num_points);
|
||
|
|
line->move_to (geom->getX (0), geom->getY (0));
|
||
|
|
for (int i=1;i<num_points;++i)
|
||
|
|
{
|
||
|
|
line->line_to (geom->getX (i), geom->getY (i));
|
||
|
|
}
|
||
|
|
feature->add_geometry (line);
|
||
|
|
}
|
||
|
|
|
||
|
|
void ogr_converter::convert_polygon (OGRPolygon* geom, feature_ptr feature)
|
||
|
|
{
|
||
|
|
OGRLinearRing* exterior = geom->getExteriorRing ();
|
||
|
|
int num_points = exterior->getNumPoints ();
|
||
|
|
int num_interior = geom->getNumInteriorRings ();
|
||
|
|
int capacity = 0;
|
||
|
|
for (int r=0;r<num_interior;r++)
|
||
|
|
{
|
||
|
|
OGRLinearRing* interior = geom->getInteriorRing (r);
|
||
|
|
capacity += interior->getNumPoints ();
|
||
|
|
}
|
||
|
|
|
||
|
|
geometry2d * poly = new polygon_impl;
|
||
|
|
poly->set_capacity (num_points + capacity);
|
||
|
|
poly->move_to (exterior->getX (0), exterior->getY (0));
|
||
|
|
for (int i=1;i<num_points;++i)
|
||
|
|
{
|
||
|
|
poly->line_to (exterior->getX (i), exterior->getY (i));
|
||
|
|
}
|
||
|
|
for (int r=0;r<num_interior;r++)
|
||
|
|
{
|
||
|
|
OGRLinearRing* interior = geom->getInteriorRing (r);
|
||
|
|
num_points = interior->getNumPoints ();
|
||
|
|
poly->move_to(interior->getX (0), interior->getY (0));
|
||
|
|
for (int i=1;i<num_points;++i)
|
||
|
|
{
|
||
|
|
poly->line_to(interior->getX (i), interior->getY (i));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
feature->add_geometry (poly);
|
||
|
|
}
|
||
|
|
|
||
|
|
void ogr_converter::convert_multipoint (OGRMultiPoint* geom, feature_ptr feature)
|
||
|
|
{
|
||
|
|
int num_geometries = geom->getNumGeometries ();
|
||
|
|
geometry2d* point = new point_impl;
|
||
|
|
|
||
|
|
for (int i=0;i<num_geometries;i++)
|
||
|
|
{
|
||
|
|
OGRPoint* ogrpoint = static_cast<OGRPoint*>(geom->getGeometryRef (i));
|
||
|
|
point->move_to (ogrpoint->getX(), ogrpoint->getY());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void ogr_converter::convert_multipoint_2 (OGRMultiPoint* geom, feature_ptr feature)
|
||
|
|
{
|
||
|
|
int num_geometries = geom->getNumGeometries ();
|
||
|
|
for (int i=0;i<num_geometries;i++)
|
||
|
|
{
|
||
|
|
convert_point (static_cast<OGRPoint*>(geom->getGeometryRef (i)), feature);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void ogr_converter::convert_multilinestring (OGRMultiLineString* geom, feature_ptr feature)
|
||
|
|
{
|
||
|
|
int num_geometries = geom->getNumGeometries ();
|
||
|
|
|
||
|
|
int num_points = 0;
|
||
|
|
for (int i=0;i<num_geometries;i++)
|
||
|
|
{
|
||
|
|
OGRLineString* ls = static_cast<OGRLineString*>(geom->getGeometryRef (i));
|
||
|
|
num_points += ls->getNumPoints ();
|
||
|
|
}
|
||
|
|
|
||
|
|
geometry2d * line = new line_string_impl;
|
||
|
|
line->set_capacity (num_points);
|
||
|
|
|
||
|
|
for (int i=0;i<num_geometries;i++)
|
||
|
|
{
|
||
|
|
OGRLineString* ls = static_cast<OGRLineString*>(geom->getGeometryRef (i));
|
||
|
|
num_points = ls->getNumPoints ();
|
||
|
|
line->move_to (ls->getX (0), ls->getY (0));
|
||
|
|
for (int i=1;i<num_points;++i)
|
||
|
|
{
|
||
|
|
line->line_to (ls->getX (i), ls->getY (i));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
feature->add_geometry (line);
|
||
|
|
}
|
||
|
|
|
||
|
|
void ogr_converter::convert_multilinestring_2 (OGRMultiLineString* geom, feature_ptr feature)
|
||
|
|
{
|
||
|
|
int num_geometries = geom->getNumGeometries ();
|
||
|
|
for (int i=0;i<num_geometries;i++)
|
||
|
|
{
|
||
|
|
convert_linestring (static_cast<OGRLineString*>(geom->getGeometryRef (i)), feature);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void ogr_converter::convert_multipolygon (OGRMultiPolygon* geom, feature_ptr feature)
|
||
|
|
{
|
||
|
|
int num_geometries = geom->getNumGeometries ();
|
||
|
|
|
||
|
|
int capacity = 0;
|
||
|
|
for (int i=0;i<num_geometries;i++)
|
||
|
|
{
|
||
|
|
OGRPolygon* p = static_cast<OGRPolygon*>(geom->getGeometryRef (i));
|
||
|
|
OGRLinearRing* exterior = p->getExteriorRing ();
|
||
|
|
capacity += exterior->getNumPoints ();
|
||
|
|
for (int r=0;r<p->getNumInteriorRings ();r++)
|
||
|
|
{
|
||
|
|
OGRLinearRing* interior = p->getInteriorRing (r);
|
||
|
|
capacity += interior->getNumPoints ();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
geometry2d * poly = new polygon_impl;
|
||
|
|
poly->set_capacity (capacity);
|
||
|
|
|
||
|
|
for (int i=0;i<num_geometries;i++)
|
||
|
|
{
|
||
|
|
OGRPolygon* p = static_cast<OGRPolygon*>(geom->getGeometryRef (i));
|
||
|
|
OGRLinearRing* exterior = p->getExteriorRing ();
|
||
|
|
int num_points = exterior->getNumPoints ();
|
||
|
|
int num_interior = p->getNumInteriorRings ();
|
||
|
|
poly->move_to (exterior->getX (0), exterior->getY (0));
|
||
|
|
for (int i=1;i<num_points;++i)
|
||
|
|
{
|
||
|
|
poly->line_to (exterior->getX (i), exterior->getY (i));
|
||
|
|
}
|
||
|
|
for (int r=0;r<num_interior;r++)
|
||
|
|
{
|
||
|
|
OGRLinearRing* interior = p->getInteriorRing (r);
|
||
|
|
num_points = interior->getNumPoints ();
|
||
|
|
poly->move_to(interior->getX (0), interior->getY (0));
|
||
|
|
for (int i=1;i<num_points;++i)
|
||
|
|
{
|
||
|
|
poly->line_to(interior->getX (i), interior->getY (i));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
feature->add_geometry (poly);
|
||
|
|
}
|
||
|
|
|
||
|
|
void ogr_converter::convert_multipolygon_2 (OGRMultiPolygon* geom, feature_ptr feature)
|
||
|
|
{
|
||
|
|
int num_geometries = geom->getNumGeometries ();
|
||
|
|
for (int i=0;i<num_geometries;i++)
|
||
|
|
{
|
||
|
|
convert_polygon (static_cast<OGRPolygon*>(geom->getGeometryRef (i)), feature);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void ogr_converter::convert_collection (OGRGeometryCollection* geom, feature_ptr feature, bool multiple_geometries)
|
||
|
|
{
|
||
|
|
int num_geometries = geom->getNumGeometries ();
|
||
|
|
for (int i=0;i<num_geometries;i++)
|
||
|
|
{
|
||
|
|
OGRGeometry* g = geom->getGeometryRef (i);
|
||
|
|
if (g != NULL)
|
||
|
|
{
|
||
|
|
convert_geometry (g, feature, multiple_geometries);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|