Ejemplos de svg_storage_type en C++ (Cpp)

Ejemplo n.º 1

Archivo: marker_helpers.hpp Proyecto: eponymous1968/mapnik

void build_ellipse(T const& sym, mapnik::feature_impl & feature, attributes const& vars, svg_storage_type & marker_ellipse, svg::svg_path_adapter & svg_path)
{
    double width = 0.0;
    double height = 0.0;
    if (has_key<double>(sym,keys::width) && has_key<double>(sym,keys::height))
    {
        width = get<double>(sym, keys::width, feature, vars, 0.0);
        height = get<double>(sym, keys::height, feature, vars, 0.0);
    }
    else if (has_key<double>(sym,keys::width))
    {
        width = height = get<double>(sym, keys::width, feature, vars, 0.0);
    }
    else if (has_key<double>(sym,keys::height))
    {
        width = height = get<double>(sym, keys::height, feature, vars, 0.0);
    }
    svg::svg_converter_type styled_svg(svg_path, marker_ellipse.attributes());
    styled_svg.push_attr();
    styled_svg.begin_path();
    agg::ellipse c(0, 0, width/2.0, height/2.0);
    styled_svg.storage().concat_path(c);
    styled_svg.end_path();
    styled_svg.pop_attr();
    double lox,loy,hix,hiy;
    styled_svg.bounding_rect(&lox, &loy, &hix, &hiy);
    styled_svg.set_dimensions(width,height);
    marker_ellipse.set_dimensions(width,height);
    marker_ellipse.set_bounding_box(lox,loy,hix,hiy);
}

Ejemplo n.º 2

Archivo: marker_helpers.hpp Proyecto: LeadsPlus/mapnik

void build_ellipse(T const& sym, mapnik::feature_impl const& feature, svg_storage_type & marker_ellipse, svg::svg_path_adapter & svg_path)
{
    expression_ptr const& width_expr = sym.get_width();
    expression_ptr const& height_expr = sym.get_height();
    double width = 0;
    double height = 0;
    if (width_expr && height_expr)
    {
        width = boost::apply_visitor(evaluate<Feature,value_type>(feature), *width_expr).to_double();
        height = boost::apply_visitor(evaluate<Feature,value_type>(feature), *height_expr).to_double();
    }
    else if (width_expr)
    {
        width = boost::apply_visitor(evaluate<Feature,value_type>(feature), *width_expr).to_double();
        height = width;
    }
    else if (height_expr)
    {
        height = boost::apply_visitor(evaluate<Feature,value_type>(feature), *height_expr).to_double();
        width = height;
    }
    svg::svg_converter_type styled_svg(svg_path, marker_ellipse.attributes());
    styled_svg.push_attr();
    styled_svg.begin_path();
    agg::ellipse c(0, 0, width/2.0, height/2.0);
    styled_svg.storage().concat_path(c);
    styled_svg.end_path();
    styled_svg.pop_attr();
    double lox,loy,hix,hiy;
    styled_svg.bounding_rect(&lox, &loy, &hix, &hiy);
    marker_ellipse.set_bounding_box(lox,loy,hix,hiy);
}