distance.hpp

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#pragma once
 
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable: 4244)
#pragma warning(disable: 4267)
#endif
 
#include <mapbox/cheap_ruler.hpp>
 
#ifdef _MSC_VER
#pragma warning(pop)
#endif
 
#include <mbgl/style/expression/expression.hpp>
#include <mbgl/util/geojson.hpp>
 
namespace mbgl {
namespace style {
namespace expression {
 
class Distance final : public Expression {
public:
    Distance(GeoJSON geoJSONSource_, Feature::geometry_type geometries_);
 
    ~Distance() override;
 
    EvaluationResult evaluate(const EvaluationContext&) const override;
 
    static ParseResult parse(const mbgl::style::conversion::Convertible&, ParsingContext&);
 
    void eachChild(const std::function<void(const Expression&)>&) const override {}
 
    bool operator==(const Expression& e) const override;
 
    std::vector<std::optional<Value>> possibleOutputs() const override;
 
    mbgl::Value serialize() const override;
    std::string getOperator() const override;
 
private:
    GeoJSON geoJSONSource;
    Feature::geometry_type geometries;
};
 
} // namespace expression
} // namespace style
} // namespace mbgl