C++ (Cpp) layer::datasource 예제들

예제 #1

파일: grid_renderer.cpp 프로젝트: LeadsPlus/mapnik

void grid_renderer<T>::start_layer_processing(layer const& lay, box2d<double> const& query_extent)
{
    MAPNIK_LOG_DEBUG(grid_renderer) << "grid_renderer: Start processing layer=" << lay.name();
    MAPNIK_LOG_DEBUG(grid_renderer) << "grid_renderer: datasource=" << lay.datasource().get();
    MAPNIK_LOG_DEBUG(grid_renderer) << "grid_renderer: query_extent = " << query_extent;

    if (lay.clear_label_cache())
    {
        detector_->clear();
    }
    query_extent_ = query_extent;
    int buffer_size = lay.buffer_size();
    if (buffer_size != 0 )
    {
        double padding = buffer_size * (double)(query_extent.width()/pixmap_.width());
        double x0 = query_extent_.minx();
        double y0 = query_extent_.miny();
        double x1 = query_extent_.maxx();
        double y1 = query_extent_.maxy();
        query_extent_.init(x0 - padding, y0 - padding, x1 + padding , y1 + padding);
    }

    boost::optional<box2d<double> > const& maximum_extent = lay.maximum_extent();
    if (maximum_extent)
    {
        query_extent_.clip(*maximum_extent);
    }
}

예제 #2

파일: grid_renderer.cpp 프로젝트: ParveenArora/mapnik

void grid_renderer<T>::start_layer_processing(layer const& lay)
{
#ifdef MAPNIK_DEBUG
    std::clog << "start layer processing : " << lay.name()  << "\n";
    std::clog << "datasource = " << lay.datasource().get() << "\n";
#endif
    if (lay.clear_label_cache())
    {
        detector_.clear();
    }
}

예제 #3

void cairo_renderer<T>::start_layer_processing(layer const& lay, box2d<double> const& query_extent)
{
    MAPNIK_LOG_DEBUG(cairo_renderer) << "cairo_renderer: Start processing layer=" << lay.name() ;
    MAPNIK_LOG_DEBUG(cairo_renderer) << "cairo_renderer: -- datasource=" << lay.datasource().get();
    MAPNIK_LOG_DEBUG(cairo_renderer) << "cairo_renderer: -- query_extent=" << query_extent;

    if (lay.clear_label_cache())
    {
        common_.detector_->clear();
    }
    common_.query_extent_ = query_extent;

    if (lay.comp_op() || lay.get_opacity() < 1.0)
    {
        context_.push_group();
    }
}

예제 #4

파일: grid_renderer.cpp 프로젝트: Blaxxun/mapnik

void grid_renderer<T>::start_layer_processing(layer const& lay, box2d<double> const& query_extent)
{
    MAPNIK_LOG_DEBUG(grid_renderer) << "grid_renderer: Start processing layer=" << lay.name();
    MAPNIK_LOG_DEBUG(grid_renderer) << "grid_renderer: datasource=" << lay.datasource().get();
    MAPNIK_LOG_DEBUG(grid_renderer) << "grid_renderer: query_extent = " << query_extent;

    if (lay.clear_label_cache())
    {
        detector_->clear();
    }
    query_extent_ = query_extent;
    boost::optional<box2d<double> > const& maximum_extent = lay.maximum_extent();
    if (maximum_extent)
    {
        query_extent_.clip(*maximum_extent);
    }
}

예제 #5

파일: mapnik_layer.cpp 프로젝트: Andrey-VI/mapnik

 static  boost::python::tuple
 getstate(const layer& l)
 {
     boost::python::list s;
     std::vector<std::string> const& style_names = l.styles();
     for (unsigned i = 0; i < style_names.size(); ++i)
     {
         s.append(style_names[i]);
     }
     return boost::python::make_tuple(l.clear_label_cache(),l.min_zoom(),l.max_zoom(),l.queryable(),l.datasource()->params(),l.cache_features(),s);
 }