mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-02 04:22:03 +00:00
114 lines
2.9 KiB
C++
114 lines
2.9 KiB
C++
#include <Functions/FunctionFactory.h>
|
|
#include <Functions/geometryConverters.h>
|
|
|
|
#include <boost/geometry.hpp>
|
|
#include <boost/geometry/geometries/point_xy.hpp>
|
|
#include <boost/geometry/geometries/polygon.hpp>
|
|
|
|
#include <Common/logger_useful.h>
|
|
|
|
#include <Columns/ColumnArray.h>
|
|
#include <Columns/ColumnTuple.h>
|
|
#include <Columns/ColumnsNumber.h>
|
|
#include <DataTypes/DataTypeArray.h>
|
|
#include <DataTypes/DataTypeTuple.h>
|
|
#include <DataTypes/DataTypesNumber.h>
|
|
|
|
#include <memory>
|
|
#include <string>
|
|
|
|
|
|
namespace DB
|
|
{
|
|
|
|
namespace ErrorCodes
|
|
{
|
|
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
|
|
}
|
|
|
|
namespace
|
|
{
|
|
|
|
template <typename Point>
|
|
class FunctionPolygonPerimeter : public IFunction
|
|
{
|
|
public:
|
|
static const char * name;
|
|
|
|
explicit FunctionPolygonPerimeter() = default;
|
|
|
|
static FunctionPtr create(ContextPtr)
|
|
{
|
|
return std::make_shared<FunctionPolygonPerimeter>();
|
|
}
|
|
|
|
String getName() const override
|
|
{
|
|
return name;
|
|
}
|
|
|
|
bool isVariadic() const override
|
|
{
|
|
return false;
|
|
}
|
|
|
|
size_t getNumberOfArguments() const override
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
DataTypePtr getReturnTypeImpl(const DataTypes &) const override
|
|
{
|
|
return std::make_shared<DataTypeFloat64>();
|
|
}
|
|
|
|
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return true; }
|
|
|
|
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr & /*result_type*/, size_t input_rows_count) const override
|
|
{
|
|
auto res_column = ColumnFloat64::create();
|
|
auto & res_data = res_column->getData();
|
|
res_data.reserve(input_rows_count);
|
|
|
|
callOnGeometryDataType<Point>(arguments[0].type, [&] (const auto & type)
|
|
{
|
|
using TypeConverter = std::decay_t<decltype(type)>;
|
|
using Converter = typename TypeConverter::Type;
|
|
|
|
if constexpr (std::is_same_v<ColumnToPointsConverter<Point>, Converter>)
|
|
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "The argument of function {} must not be Point", getName());
|
|
else
|
|
{
|
|
auto geometries = Converter::convert(arguments[0].column->convertToFullColumnIfConst());
|
|
|
|
for (size_t i = 0; i < input_rows_count; ++i)
|
|
res_data.emplace_back(static_cast<Float64>(boost::geometry::perimeter(geometries[i])));
|
|
}
|
|
});
|
|
|
|
return res_column;
|
|
}
|
|
|
|
bool useDefaultImplementationForConstants() const override
|
|
{
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template <>
|
|
const char * FunctionPolygonPerimeter<CartesianPoint>::name = "polygonPerimeterCartesian";
|
|
|
|
template <>
|
|
const char * FunctionPolygonPerimeter<SphericalPoint>::name = "polygonPerimeterSpherical";
|
|
|
|
}
|
|
|
|
REGISTER_FUNCTION(PolygonPerimeter)
|
|
{
|
|
factory.registerFunction<FunctionPolygonPerimeter<CartesianPoint>>();
|
|
factory.registerFunction<FunctionPolygonPerimeter<SphericalPoint>>();
|
|
}
|
|
|
|
|
|
}
|