chart.h

开源的电子海图程序

/* GHelm - Nautical Navigation Software
 * Copyright (C) 2004 Jon Michaelchuck
 *
 * This application is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation.
 *
 * This software 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 software; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA.
 */

#ifndef CHART_H_
#define CHART_H_

#include <map>
#include <vector>

#include <GL/gl.h>
#include <GL/glu.h>
#include <gtkmm.h>

#include <boost/filesystem/operations.hpp>
#include <boost/filesystem/fstream.hpp>
#include <boost/filesystem/path.hpp>

#include "configuration.h"

#include "areafeature.h"
#include "connectednodevector.h"
#include "dsid.h"
#include "dspm.h"
#include "edgevector.h"
#include "feature.h"
#include "iso8211lib/iso8211.h"
#include "isolatednodevector.h"
#include "linefeature.h"
#include "pointfeature.h"

/**
 * This class contains the data from an S57 chart as well as the method
 * to draw it using OpenGL methods.
 */
class Chart
{
    public:
        Chart();
        ~Chart();
        int Load(boost::filesystem::path &fpath, Configuration &configuration);
        void Draw(double zoom, Configuration &configuration);
        // custom signals
        sigc::signal<void> signal_progress;

        // public data
        boost::filesystem::path filepath;
        std::string description;
        float slat, wlon, nlat, elon;
        float absolute_zoom_factor;
        float zoom_exponent;

        std::map<int, std::vector<LineFeature> > line_features_map;
        std::map<int, std::vector<PointFeature> > point_features_map;
        std::map<int, std::vector<AreaFeature> > area_features_map;
        std::vector<waypoint_t> waypoints;
    private:
        // generation of drawing data
        void GeneratePointFeatures(Configuration &configuration);
        void GenerateLineLists(Configuration &configuration);
        void GenerateAreaLists(Configuration &configuration);
        void GenerateCoastlines();
        void DrawLines();

        // Loading/setting up s57 stuff
        int S57Load(boost::filesystem::path &fpath);

          int S57ReadDSIDRecord(DDFRecord *record);
          int S57ReadDSPMRecord(DDFRecord *record);

          int S57ReadFeatureRecord(DDFRecord *record);
            int S57LoadPointFeature(DDFRecord *record);
            int S57LoadLineFeature(DDFRecord *record);
            int S57LoadAreaFeature(DDFRecord *record);

          int S57ReadVectorRecord(DDFRecord *record);
            int S57LoadIsolatedNodeVectorRecord(DDFRecord *record);
            int S57LoadConnectedNodeVectorRecord(DDFRecord *record);
            int S57LoadEdgeVectorRecord(DDFRecord *record);

          void S57NormalizeCoordinates();
          int S57SetupEdgeVectors();
          int S57SetupAreaFeatures();

        // vectors maps
        std::map<int, IsolatedNodeVector> isolated_node_vectors_map;
        std::map<int, ConnectedNodeVector> connected_node_vectors_map;
        std::map<int, EdgeVector> edge_vectors_map;

        // meta data loading
        DSID dsid;
        bool dsid_loaded;
        DSPM dspm;
        bool dspm_loaded;

        std::map<int, GLuint> line_lists;
        std::map<int, GLuint> area_lists;
};

#endif