本文整理汇总了C++中Attr::push_back方法的典型用法代码示例。如果您正苦于以下问题：C++ Attr::push_back方法的具体用法？C++ Attr::push_back怎么用？C++ Attr::push_back使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Attr的用法示例。
在下文中一共展示了Attr::push_back方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: push_explicit_style
bool push_explicit_style(Attr const& src, Attr & dst, markers_symbolizer const& sym)
{
boost::optional<stroke> const& strk = sym.get_stroke();
boost::optional<color> const& fill = sym.get_fill();
if (strk || fill)
{
for(unsigned i = 0; i < src.size(); ++i)
{
mapnik::svg::path_attributes attr = src[i];
if (strk)
{
attr.stroke_flag = true;
attr.stroke_width = strk->get_width();
color const& s_color = strk->get_color();
attr.stroke_color = agg::rgba(s_color.red()/255.0,s_color.green()/255.0,
s_color.blue()/255.0,(s_color.alpha()*strk->get_opacity())/255.0);
}
if (fill)
{
attr.fill_flag = true;
color const& f_color = *fill;
attr.fill_color = agg::rgba(f_color.red()/255.0,f_color.green()/255.0,
f_color.blue()/255.0,(f_color.alpha()*sym.get_opacity())/255.0);
}
dst.push_back(attr);
}
return true;
}
return false;
}示例2: push_explicit_style
bool push_explicit_style(Attr const& src, Attr & dst, markers_symbolizer const& sym)
{
boost::optional<stroke> const& strk = sym.get_stroke();
boost::optional<color> const& fill = sym.get_fill();
boost::optional<float> const& fill_opacity = sym.get_fill_opacity();
if (strk || fill || fill_opacity)
{
bool success = false;
for(unsigned i = 0; i < src.size(); ++i)
{
success = true;
dst.push_back(src[i]);
mapnik::svg::path_attributes & attr = dst.last();
if (attr.stroke_flag)
{
// TODO - stroke attributes need to be boost::optional
// for this to work properly
if (strk)
{
attr.stroke_width = strk->get_width();
color const& s_color = strk->get_color();
attr.stroke_color = agg::rgba(s_color.red()/255.0,
s_color.green()/255.0,
s_color.blue()/255.0,
s_color.alpha()/255.0);
attr.stroke_opacity = strk->get_opacity();
}
}
if (attr.fill_flag)
{
if (fill)
{
color const& f_color = *fill;
attr.fill_color = agg::rgba(f_color.red()/255.0,
f_color.green()/255.0,
f_color.blue()/255.0,
f_color.alpha()/255.0);
}
if (fill_opacity)
{
attr.fill_opacity = *fill_opacity;
}
}
}
return success;
}
return false;
}示例3: push_explicit_style
bool push_explicit_style(Attr const& src, Attr & dst,
markers_symbolizer const& sym,
feature_impl & feature,
attributes const& vars)
{
auto fill_color = get_optional<color>(sym, keys::fill, feature, vars);
auto fill_opacity = get_optional<double>(sym, keys::fill_opacity, feature, vars);
auto stroke_color = get_optional<color>(sym, keys::stroke, feature, vars);
auto stroke_width = get_optional<double>(sym, keys::stroke_width, feature, vars);
auto stroke_opacity = get_optional<double>(sym, keys::stroke_opacity, feature, vars);
if (fill_color ||
fill_opacity ||
stroke_color ||
stroke_width ||
stroke_opacity)
{
bool success = false;
for(unsigned i = 0; i < src.size(); ++i)
{
success = true;
dst.push_back(src[i]);
mapnik::svg::path_attributes & attr = dst.last();
if (attr.stroke_flag)
{
if (stroke_width)
{
attr.stroke_width = *stroke_width;
}
if (stroke_color)
{
color const& s_color = *stroke_color;
attr.stroke_color = agg::rgba(s_color.red()/255.0,
s_color.green()/255.0,
s_color.blue()/255.0,
s_color.alpha()/255.0);
}
if (stroke_opacity)
{
attr.stroke_opacity = *stroke_opacity;
}
}
if (attr.fill_flag)
{
if (fill_color)
{
color const& f_color = *fill_color;
attr.fill_color = agg::rgba(f_color.red()/255.0,
f_color.green()/255.0,
f_color.blue()/255.0,
f_color.alpha()/255.0);
}
if (fill_opacity)
{
attr.fill_opacity = *fill_opacity;
}
}
}
return success;
}
return false;
}