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default to transparent not pink if color expression fails

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This commit is contained in:
Dane Springmeyer 2014-10-27 09:23:27 -07:00
parent 180bc17fc6
commit aa85a4ff1e
1 changed files with 1 additions and 5 deletions
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6
include/mapnik/symbolizer.hpp
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@ -289,7 +289,7 @@ struct evaluate_expression_wrapper<mapnik::color>
mapnik::color operator() (T1 const& expr, T2 const& feature, T3 const& vars) const
{
mapnik::value_type val = util::apply_visitor(mapnik::evaluate<T2,mapnik::value_type,T3>(feature,vars), expr);
if (val.is_null()) return mapnik::color(255,192,203); // pink
if (val.is_null()) return mapnik::color(0,0,0,0); // transparent
return mapnik::color(val.to_string());
}
};
@ -400,14 +400,10 @@ struct extract_raw_value : public util::static_visitor<T1>
}
};
//
using property_meta_type = std::tuple<const char*, std::function<std::string(enumeration_wrapper)>, property_types>;
MAPNIK_DECL property_meta_type const& get_meta(mapnik::keys key);
MAPNIK_DECL mapnik::keys get_key(std::string const& name);
//
template <typename T>
void put(symbolizer_base & sym, keys key, T const& val)
{