src/lib/dataset.cpp

//
// AutoCoast: Automatic Coastline scenery generator for Flight Simulator
//
// Copyright (c) 2004, Takuya Murakami. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// dataset.cpp: polygon data set

#include "dataset.hpp"

DataSet::DataSet()
{
        for (int i = 0; i <= NUM_LEVEL; i++) {
                source[i] = NULL;
        }
}

DataSet::~DataSet()
{
        for (int i = 1; i <= NUM_LEVEL; i++) {
                if (source[i] != NULL) {
                        delete source[i];
                }
        }
}

void DataSet::setSource(int i, GpcPolygon *p)
{
        source[i] = p;
}

void DataSet::LoadData(void)
{
        for (int i = 1; i <= NUM_LEVEL; i++) {
                if (source[i] != NULL) {
                        delete source[i];
                }
                source[i] = new GpcPolygon;

                char fname[128];
                sprintf(fname, "level%d.gpc", i);

                source[i]->LoadFromFile(fname);
        }
}

DataSet * DataSet::Clipping(BoundingBox &bbox)
{
        DataSet *clipped = new DataSet;

        for (int i = 1; i <= NUM_LEVEL; i++) {
                clipped->setSource(i, source[i]->Clipping(bbox));
        }

        return clipped;
}

bool DataSet::isEmpty(BoundingBox &bbox)
{
        for (int i = 1; i <= NUM_LEVEL; i++) {
                if (!source[i]->isEmpty() &&
                    !source[i]->isFull(bbox)) {
                        //fprintf(stderr, "D");
                        return false;
                }
        }
        //fprintf(stderr, "E");
        return true;
}

void DataSet::printStat(void)
{
        for (int i = 1; i <= NUM_LEVEL; i++) {
                fprintf(stderr, "level=%d ", i);
                source[i]->printStat();
        }
}