void DragFrameShape::draw_BottomRight(const DrawBuf &buf) const
{
drawBottomRight(buf,dragBottomRight,dragColor(DragType_BottomRight));
}
bool MapnikRenderer::Preprocess( IImporter* importer, QString dir )
{
QString filename = fileInDirectory( dir, "Mapnik Renderer" );
try {
IImporter::BoundingBox box;
if ( !importer->GetBoundingBox( &box ) )
return false;
std::vector< IImporter::RoutingEdge > inputEdges;
std::vector< IImporter::RoutingNode > inputNodes;
std::vector< IImporter::RoutingNode > inputPaths;
if ( m_settings.deleteTiles ) {
if ( !importer->GetRoutingEdges( &inputEdges ) ) {
qCritical() << "Mapnik Renderer: failed to read routing edges";
return false;
}
if ( !importer->GetRoutingNodes( &inputNodes ) ) {
qCritical() << "Mapnik Renderer: failed to read routing nodes";
return false;
}
if ( !importer->GetRoutingEdgePaths( &inputPaths ) ) {
qCritical() << "Mapnik Renderer: failed to read routing paths";
}
}
Timer time;
mapnik::datasource_cache::instance().register_datasources( m_settings.plugins.toLatin1().constData() );
QDir fonts( m_settings.fonts );
mapnik::projection projection( "+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs +over" );
mapnik::freetype_engine::register_font( fonts.filePath( "DejaVuSans.ttf" ).toLatin1().constData() );
mapnik::freetype_engine::register_font( fonts.filePath( "DejaVuSans-Bold.ttf" ).toLatin1().constData() );
mapnik::freetype_engine::register_font( fonts.filePath( "DejaVuSans-Oblique.ttf" ).toLatin1().constData() );
mapnik::freetype_engine::register_font( fonts.filePath( "DejaVuSans-BoldOblique.ttf" ).toLatin1().constData() );
qDebug() << "Mapnik Renderer: initialized mapnik connection:" << time.restart() << "ms";
int numThreads = omp_get_max_threads();
qDebug() << "Mapnik Renderer: using" << numThreads << "threads";
qDebug() << "Mapnik Renderer: x: " << box.min.x << "-" << box.max.x;
qDebug() << "Mapnik Renderer: y: " << box.min.y << "-" << box.max.y;
FileStream configData( filename );
if ( !configData.open( QIODevice::WriteOnly ) )
return false;
configData << quint32( m_settings.tileSize ) << quint32( m_settings.zoomLevels.size() );
long long tilesSkipped = 0;
long long tiles = 0;
long long metaTilesRendered = 0;
long long pngcrushSaved = 0;
std::vector< ZoomInfo > zoomInfo( m_settings.zoomLevels.size() );
std::vector< MetaTile > tasks;
for ( int zoomLevel = 0; zoomLevel < ( int ) m_settings.zoomLevels.size(); zoomLevel++ ) {
ZoomInfo& info = zoomInfo[zoomLevel];
int zoom = m_settings.zoomLevels[zoomLevel];
info.minX = box.min.GetTileX( zoom );
info.maxX = box.max.GetTileX( zoom ) + 1;
info.minY = box.min.GetTileY( zoom );
info.maxY = box.max.GetTileY( zoom ) + 1;
if ( zoom <= m_settings.fullZoom ) {
info.minX = info.minY = 0;
info.maxX = info.maxY = 1 << zoom;
} else {
info.minX = std::max( 0 , info.minX - m_settings.tileMargin );
info.maxX = std::min ( 1 << zoom, info.maxX + m_settings.tileMargin );
info.minY = std::max( 0, info.minY - m_settings.tileMargin );
info.maxY = std::min ( 1 << zoom, info.maxY + m_settings.tileMargin );
}
tiles += ( info.maxX - info.minX ) * ( info.maxY - info.minY );
qDebug() << "Mapnik Renderer: [" << zoom << "] x:" << info.minX << "-" << info.maxX << "; y:" << info.minY << "-" << info.maxY;
configData << quint32( zoom ) << quint32( info.minX ) << quint32( info.maxX ) << quint32( info.minY ) << quint32( info.maxY );
int numberOfTiles = ( info.maxX - info.minX ) * ( info.maxY - info.minY );
IndexElement dummyIndex;
dummyIndex.start = dummyIndex.size = 0;
info.index.resize( numberOfTiles, dummyIndex );
std::vector< UnsignedCoordinate > path;
for ( std::vector< IImporter::RoutingEdge >::const_iterator i = inputEdges.begin(), e = inputEdges.end(); i != e; ++i ) {
path.push_back( inputNodes[i->source].coordinate );
for ( int pathID = 0; pathID < i->pathLength; pathID++ )
path.push_back( inputPaths[pathID + i->pathID].coordinate );
path.push_back( inputNodes[i->target].coordinate );
for ( unsigned edge = 0; edge < path.size(); edge++ ) {
int sourceX = path[edge].GetTileX( zoom );
int sourceY = path[edge].GetTileY( zoom );
int targetX = path[edge].GetTileX( zoom );
int targetY = path[edge].GetTileY( zoom );
if ( sourceX > targetX )
std::swap( sourceX, targetX );
if ( sourceY > targetY )
std::swap( sourceY, targetY );
sourceX = std::max( sourceX, info.minX );
sourceX = std::min( sourceX, info.maxX - 1 );
sourceY = std::max( sourceY, info.minY );
sourceY = std::min( sourceY, info.maxY - 1 );
targetX = std::max( targetX, info.minX );
targetX = std::min( targetX, info.maxX - 1 );
targetY = std::max( targetY, info.minY );
targetY = std::min( targetY, info.maxY - 1 );
for ( int x = sourceX; x <= targetX; ++x )
for ( int y = sourceY; y <= targetY; ++y )
info.index[( x - info.minX ) + ( y - info.minY ) * ( info.maxX - info.minX )].size = 1;
}
path.clear();
}
info.tilesFile = new QFile( filename + QString( "_%1_tiles" ).arg( zoom ) );
if ( !openQFile( info.tilesFile, QIODevice::WriteOnly ) )
return false;
for ( int x = info.minX; x < info.maxX; x+= m_settings.metaTileSize ) {
int metaTileSizeX = std::min( m_settings.metaTileSize, info.maxX - x );
for ( int y = info.minY; y < info.maxY; y+= m_settings.metaTileSize ) {
int metaTileSizeY = std::min( m_settings.metaTileSize, info.maxY - y );
MetaTile tile;
tile.zoom = zoomLevel;
tile.x = x;
tile.y = y;
tile.metaTileSizeX = metaTileSizeX;
tile.metaTileSizeY = metaTileSizeY;
tasks.push_back( tile );
}
}
}
#pragma omp parallel
{
int threadID = omp_get_thread_num();
const int metaTileSize = m_settings.metaTileSize * m_settings.tileSize + 2 * m_settings.margin;
mapnik::Map map;
mapnik::image_32 image( metaTileSize, metaTileSize );
QTemporaryFile tempOut;
QTemporaryFile tempIn;
mapnik::load_map( map, m_settings.theme.toLocal8Bit().constData() );
#pragma omp for schedule( dynamic )
for ( int i = 0; i < ( int ) tasks.size(); i++ ) {
int metaTileSizeX = tasks[i].metaTileSizeX;
int metaTileSizeY = tasks[i].metaTileSizeY;
int x = tasks[i].x;
int y = tasks[i].y;
int zoomLevel = tasks[i].zoom;
int zoom = m_settings.zoomLevels[zoomLevel];
ZoomInfo& info = zoomInfo[zoomLevel];
map.resize( metaTileSizeX * m_settings.tileSize + 2 * m_settings.margin, metaTileSizeY * m_settings.tileSize + 2 * m_settings.margin );
ProjectedCoordinate drawTopLeft( x - 1.0 * m_settings.margin / m_settings.tileSize, y - 1.0 * m_settings.margin / m_settings.tileSize, zoom );
ProjectedCoordinate drawBottomRight( x + metaTileSizeX + 1.0 * m_settings.margin / m_settings.tileSize, y + metaTileSizeY + 1.0 * m_settings.margin / m_settings.tileSize, zoom );
GPSCoordinate drawTopLeftGPS = drawTopLeft.ToGPSCoordinate();
GPSCoordinate drawBottomRightGPS = drawBottomRight.ToGPSCoordinate();
projection.forward( drawTopLeftGPS.longitude, drawBottomRightGPS.latitude );
projection.forward( drawBottomRightGPS.longitude, drawTopLeftGPS.latitude );
mapnik::box2d<double> boundingBox( drawTopLeftGPS.longitude, drawTopLeftGPS.latitude, drawBottomRightGPS.longitude, drawBottomRightGPS.latitude );
map.zoom_to_box( boundingBox );
mapnik::agg_renderer<mapnik::image_32> renderer( map, image );
renderer.apply();
std::string data;
int skipped = 0;
int saved = 0;
for ( int subX = 0; subX < metaTileSizeX; ++subX ) {
for ( int subY = 0; subY < metaTileSizeY; ++subY ) {
int indexNumber = ( y + subY - info.minY ) * ( info.maxX - info.minX ) + x + subX - info.minX;
mapnik::image_view<mapnik::image_data_32> view = image.get_view( subX * m_settings.tileSize + m_settings.margin, subY * m_settings.tileSize + m_settings.margin, m_settings.tileSize, m_settings.tileSize );
std::string result;
if ( !m_settings.deleteTiles || info.index[( x + subX - info.minX ) + ( y + subY - info.minY ) * ( info.maxX - info.minX )].size == 1 ) {
if ( m_settings.reduceColors )
result = mapnik::save_to_string( view, "png256" );
else
result = mapnik::save_to_string( view, "png" );
if ( m_settings.pngcrush ) {
tempOut.open();
tempOut.write( result.data(), result.size() );
tempOut.flush();
tempIn.open();
pclose( popen( ( "pngcrush " + tempOut.fileName() + " " + tempIn.fileName() ).toUtf8().constData(), "r" ) );
QByteArray buffer = tempIn.readAll();
tempIn.close();
tempOut.close();
if ( buffer.size() != 0 && buffer.size() < ( int ) result.size() ) {
saved += result.size() - buffer.size();
result.assign( buffer.constData(), buffer.size() );
}
}
}
info.index[indexNumber].start = data.size();
info.index[indexNumber].size = result.size();
data += result;
}
}
qint64 position;
#pragma omp critical
{
position = info.tilesFile->pos();
info.tilesFile->write( data.data(), data.size() );
metaTilesRendered++;
tilesSkipped += skipped;
pngcrushSaved += saved;
qDebug() << "Mapnik Renderer: [" << zoom << "], thread" << threadID << ", metatiles:" << metaTilesRendered << "/" << tasks.size();
}
for ( int subX = 0; subX < metaTileSizeX; ++subX ) {
for ( int subY = 0; subY < metaTileSizeY; ++subY ) {
int indexNumber = ( y + subY - info.minY ) * ( info.maxX - info.minX ) + x + subX - info.minX;
info.index[indexNumber].start += position;
}
}
}
}
for ( int zoomLevel = 0; zoomLevel < ( int ) m_settings.zoomLevels.size(); zoomLevel++ ) {
const ZoomInfo& info = zoomInfo[zoomLevel];
int zoom = m_settings.zoomLevels[zoomLevel];
QFile indexFile( filename + QString( "_%1_index" ).arg( zoom ) );
if ( !openQFile( &indexFile, QIODevice::WriteOnly ) )
return false;
for ( int i = 0; i < ( int ) info.index.size(); i++ ) {
indexFile.write( ( const char* ) &info.index[i].start, sizeof( info.index[i].start ) );
indexFile.write( ( const char* ) &info.index[i].size, sizeof( info.index[i].size ) );
}
delete info.tilesFile;
}
if ( m_settings.deleteTiles )
qDebug() << "Mapnik Renderer: removed" << tilesSkipped << "tiles";
if ( m_settings.pngcrush )
qDebug() << "Mapnik Renderer: PNGcrush saved" << pngcrushSaved / 1024 / 1024 << "MB";
qDebug() << "Mapnik Renderer: finished:" << time.restart() << "ms";
} catch ( const mapnik::config_error & ex ) {
qCritical( "Mapnik Renderer: ### Configuration error: %s", ex.what() );
return false;
} catch ( const std::exception & ex ) {
qCritical( "Mapnik Renderer: ### STD error: %s", ex.what() );
return false;
} catch ( ... ) {
qCritical( "Mapnik Renderer: ### Unknown error" );
return false;
}
return true;
}
