static  boost::python::tuple
 getstate(const point_symbolizer& p)
 {
     return boost::python::make_tuple(p.get_allow_overlap(),
                                      p.get_opacity(),
                                      p.get_ignore_placement(),
                                      p.get_point_placement());
 }
void agg_renderer<T>::process(point_symbolizer const& sym,
                              Feature const& feature,
                              proj_transform const& prj_trans)
{
    std::string filename = path_processor_type::evaluate(*sym.get_filename(), feature);
    
    boost::optional<mapnik::marker_ptr> marker;
    if ( !filename.empty() )
    {
        marker = marker_cache::instance()->find(filename, true);
    }
    else
    {
        marker.reset(boost::make_shared<mapnik::marker>());
    }

    if (marker)
    {
        for (unsigned i=0; i<feature.num_geometries(); ++i)
        {
            geometry_type const& geom = feature.get_geometry(i);
            double x;
            double y;
            double z=0;
            if (sym.get_point_placement() == CENTROID_POINT_PLACEMENT)
                geom.label_position(&x, &y);
            else
                geom.label_interior_position(&x, &y);

            prj_trans.backward(x,y,z);
            t_.forward(&x,&y);

            int w = (*marker)->width();
            int h = (*marker)->height();

            int px = int(floor(x - 0.5 * w));
            int py = int(floor(y - 0.5 * h));
            box2d<double> label_ext (px, py, px + w, py + h);
            if (sym.get_allow_overlap() ||
                detector_.has_placement(label_ext))
            {
                agg::trans_affine tr;
                boost::array<double,6> const& m = sym.get_transform();
                tr.load_from(&m[0]);

                render_marker(px,py,**marker,tr, sym.get_opacity());

                if (!sym.get_ignore_placement())
                    detector_.insert(label_ext);
                metawriter_with_properties writer = sym.get_metawriter();
                if (writer.first) writer.first->add_box(label_ext, feature, t_, writer.second);
            }
        }
    }

}
Exemplo n.º 3
0
void agg_renderer<T>::process(point_symbolizer const& sym,
                              mapnik::feature_impl & feature,
                              proj_transform const& prj_trans)
{
    std::string filename = path_processor_type::evaluate(*sym.get_filename(), feature);

    boost::optional<mapnik::marker_ptr> marker;
    if ( !filename.empty() )
    {
        marker = marker_cache::instance()->find(filename, true);
    }
    else
    {
        marker.reset(boost::make_shared<mapnik::marker>());
    }

    if (marker)
    {
        box2d<double> const& bbox = (*marker)->bounding_box();
        coord2d center = bbox.center();

        agg::trans_affine tr;
        evaluate_transform(tr, feature, sym.get_image_transform());
        agg::trans_affine_translation recenter(-center.x, -center.y);
        agg::trans_affine recenter_tr = recenter * tr;
        box2d<double> label_ext = bbox * recenter_tr;

        for (unsigned i=0; i<feature.num_geometries(); ++i)
        {
            geometry_type const& geom = feature.get_geometry(i);
            double x;
            double y;
            double z=0;
            if (sym.get_point_placement() == CENTROID_POINT_PLACEMENT)
            {
                if (!label::centroid(geom, x, y))
                    return;
            }
            else
            {
                if (!label::interior_position(geom ,x, y))
                    return;
            }

            prj_trans.backward(x,y,z);
            t_.forward(&x,&y);
            label_ext.re_center(x,y);
            if (sym.get_allow_overlap() ||
                detector_->has_placement(label_ext))
            {

                render_marker(pixel_position(x, y),
                              **marker,
                              tr,
                              sym.get_opacity(),
                              sym.comp_op());

                if (!sym.get_ignore_placement())
                    detector_->insert(label_ext);
            }
        }
    }

}
void agg_renderer<T>::process(point_symbolizer const& sym,
                              mapnik::feature_ptr const& feature,
                              proj_transform const& prj_trans)
{
    std::string filename = path_processor_type::evaluate(*sym.get_filename(), *feature);

    boost::optional<mapnik::marker_ptr> marker;
    if ( !filename.empty() )
    {
        marker = marker_cache::instance()->find(filename, true);
    }
    else
    {
        marker.reset(boost::make_shared<mapnik::marker>());
    }

    if (marker)
    {
        double w = (*marker)->width();
        double h = (*marker)->height();
        agg::trans_affine tr;
        boost::array<double,6> const& m = sym.get_transform();
        tr.load_from(&m[0]);
        double px0 = - 0.5 * w;
        double py0 = - 0.5 * h;
        double px1 = 0.5 * w;
        double py1 = 0.5 * h;
        double px2 = px1;
        double py2 = py0;
        double px3 = px0;
        double py3 = py1;
        tr.transform(&px0,&py0);
        tr.transform(&px1,&py1);
        tr.transform(&px2,&py2);
        tr.transform(&px3,&py3);
        box2d<double> label_ext (px0, py0, px1, py1);
        label_ext.expand_to_include(px2, py2);
        label_ext.expand_to_include(px3, py3);

        for (unsigned i=0; i<feature->num_geometries(); ++i)
        {
            geometry_type const& geom = feature->get_geometry(i);
            double x;
            double y;
            double z=0;
            if (sym.get_point_placement() == CENTROID_POINT_PLACEMENT)
                geom.label_position(&x, &y);
            else
                geom.label_interior_position(&x, &y);

            prj_trans.backward(x,y,z);
            t_.forward(&x,&y);
            label_ext.re_center(x,y);

            if (sym.get_allow_overlap() ||
                detector_->has_placement(label_ext))
            {

                render_marker(pixel_position(x - 0.5 * w, y - 0.5 * h) ,**marker,tr, sym.get_opacity());

                if (!sym.get_ignore_placement())
                    detector_->insert(label_ext);
                metawriter_with_properties writer = sym.get_metawriter();
                if (writer.first) writer.first->add_box(label_ext, *feature, t_, writer.second);
            }
        }
    }

}
Exemplo n.º 5
0
void agg_renderer<T>::process(point_symbolizer const& sym,
                              Feature const& feature,
                              proj_transform const& prj_trans)
{
    typedef agg::pixfmt_rgba32 pixfmt;
    typedef agg::renderer_base<pixfmt> renderer_base;
    typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_solid;
    
    double x;
    double y;
    double z=0;
    
    std::string filename = path_processor_type::evaluate(*sym.get_filename(), feature);
    boost::optional<mapnik::image_ptr> data;
    
    if (is_svg(filename))
    {
        // SVG  
        using namespace mapnik::svg;
        boost::optional<path_ptr> marker;
        ras_ptr->reset();
        ras_ptr->gamma(agg::gamma_linear());
        agg::scanline_u8 sl;
        agg::rendering_buffer buf(pixmap_.raw_data(), width_, height_, width_ * 4);
        pixfmt pixf(buf);
        renderer_base renb(pixf);
        renderer_solid ren(renb);
        box2d<double> extent;
        
        marker = marker_cache::instance()->find(filename, true);

        if (marker && *marker)
        {
            
            box2d<double> const& bbox = (*marker)->bounding_box();
            double x1 = bbox.minx();
            double y1 = bbox.miny();
            double x2 = bbox.maxx();
            double y2 = bbox.maxy();

            vertex_stl_adapter<svg_path_storage> stl_storage((*marker)->source());
            svg_path_adapter svg_path(stl_storage);
            svg_renderer<svg_path_adapter, 
                         agg::pod_bvector<path_attributes> > svg_renderer(svg_path,
                                                                          (*marker)->attributes());
            
            for (unsigned i=0; i<feature.num_geometries(); ++i)
            {
                geometry2d const& geom = feature.get_geometry(i);  
                geom.label_position(&x,&y);
                prj_trans.backward(x,y,z);
                t_.forward(&x,&y);
                
                agg::trans_affine tr;
                boost::array<double,6> const& m = sym.get_transform();
                tr.load_from(&m[0]);
                tr *= agg::trans_affine_scaling(scale_factor_);
                tr *= agg::trans_affine_translation(x, y);
                
                tr.transform(&x1,&y1);
                tr.transform(&x2,&y2);
                
                extent.init(x1,y1,x2,y2);
                if (sym.get_allow_overlap() ||
                    detector_.has_placement(extent))
                {
                    svg_renderer.render(*ras_ptr, sl, ren, tr, renb.clip_box(), sym.get_opacity());
                    detector_.insert(extent);
                    metawriter_with_properties writer = sym.get_metawriter();
                    if (writer.first)
                    {
                        writer.first->add_box(extent, feature, t_, writer.second);
                    }
                }
            }   
        }
    }
    else
    {
        if ( filename.empty() )
        {
            // default OGC 4x4 black square
            data = boost::optional<mapnik::image_ptr>(new image_data_32(4,4));
            (*data)->set(0xff000000);
        }
        else
        {
            data = mapnik::image_cache::instance()->find(filename,true);    
        }

        if ( data )
        {
            for (unsigned i=0; i<feature.num_geometries(); ++i)
            {
                geometry2d const& geom = feature.get_geometry(i);
                
                geom.label_position(&x,&y);
                prj_trans.backward(x,y,z);
                t_.forward(&x,&y);
                int w = (*data)->width();
                int h = (*data)->height();
                int px = int(floor(x - 0.5 * w));
                int py = int(floor(y - 0.5 * h));
                box2d<double> label_ext (px, py, px + w, py + h);
                if (sym.get_allow_overlap() ||
                    detector_.has_placement(label_ext))
                {
                    pixmap_.set_rectangle_alpha2(*(*data), px, py, sym.get_opacity());
                    detector_.insert(label_ext);
                    metawriter_with_properties writer = sym.get_metawriter();
                    if (writer.first) writer.first->add_box(label_ext, feature, t_, writer.second);
                }
            }
        }
    }
}