geometry/test/algorithms/transform_multi.cpp at develop · boostorg/geometry · GitHub

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// Boost.Geometry (aka GGL, Generic Geometry Library)

// Unit Test

// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library

// Use, modification and distribution is subject to the Boost Software License,

// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at

// http://www.boost.org/LICENSE_1_0.txt)

#include <iostream>

#include <sstream>

#include <geometry_test_common.hpp>

#include <boost/geometry/algorithms/transform.hpp>

#include <boost/geometry/strategies/strategies.hpp>

#include <boost/geometry/geometries/geometries.hpp>

#include <boost/geometry/geometries/point_xy.hpp>

#include <boost/geometry/io/wkt/wkt.hpp>

// This test is a little different from transform.cpp test.

// This test explicitly tests all geometries, including multi*

// while the transform.cpp tests various strategies.

template <typename Geometry>

void test_transform(std::string const& wkt, std::string const& expected)

{

typedef typename bg::coordinate_type<Geometry>::type coordinate_type;

const std::size_t dim = bg::dimension<Geometry>::value;

Geometry geometry_in, geometry_out;

bg::read_wkt(wkt, geometry_in);

bg::transform(geometry_in, geometry_out,

bg::strategy::transform::scale_transformer<coordinate_type, dim, dim>(2, 2));

std::ostringstream detected;

detected << bg::wkt(geometry_out);

BOOST_CHECK_EQUAL(detected.str(), expected);

}

template <typename T>

void test_all()

{

typedef bg::model::d2::point_xy<T> P;

test_transform(

"POINT(1 1)",

"POINT(2 2)");

test_transform<bg::model::linestring >(

"LINESTRING(1 1,2 2)",

"LINESTRING(2 2,4 4)");

test_transform<bg::model::segment >(

"LINESTRING(1 1,2 2)",

"LINESTRING(2 2,4 4)");

test_transform<bg::model::ring >(

"POLYGON((0 0,0 1,1 0,0 0))",

"POLYGON((0 0,0 2,2 0,0 0))");

test_transform<bg::model::polygon >(

"POLYGON((0 0,0 1,1 0,0 0))",

"POLYGON((0 0,0 2,2 0,0 0))");

test_transform<bg::model::box >(

"POLYGON((0 0,0 1,1 1,1 0,0 0))",

"POLYGON((0 0,0 2,2 2,2 0,0 0))");

test_transform<bg::model::multi_point >(

"MULTIPOINT((1 1),(2 2))",

"MULTIPOINT((2 2),(4 4))");

test_transform<bg::model::multi_linestring<bg::model::linestring > >(

"MULTILINESTRING((1 1,2 2))",

"MULTILINESTRING((2 2,4 4))");

test_transform<bg::model::multi_polygon<bg::model::polygon > >(

"MULTIPOLYGON(((0 0,0 1,1 0,0 0)))",

"MULTIPOLYGON(((0 0,0 2,2 0,0 0)))");

}

int test_main(int, char* [])

{

test_all<double>();

return 0;

}

geometry/test/algorithms/transform_multi.cpp at develop · boostorg/geometry · GitHub

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