geometry/test/srs/transformation_interface.cpp
2017-10-19 22:01:17 +02:00

205 lines
7.7 KiB
C++

// Boost.Geometry
// Unit Test
// Copyright (c) 2017, Oracle and/or its affiliates.
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
// 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 <geometry_test_common.hpp>
#include <boost/geometry.hpp>
#include <boost/geometry/geometries/geometries.hpp>
#include <boost/geometry/srs/transformation.hpp>
#include "check_geometry.hpp"
//#include <proj_api.h>
template <typename T>
void test_geometries()
{
using namespace boost::geometry;
using namespace boost::geometry::model;
using namespace boost::geometry::srs;
typedef model::point<T, 2, cs::cartesian> point;
typedef model::segment<point> segment;
typedef model::linestring<point> linestring;
typedef model::ring<point> ring;
typedef model::polygon<point> polygon;
typedef model::multi_point<point> mpoint;
typedef model::multi_linestring<linestring> mlinestring;
typedef model::multi_polygon<polygon> mpolygon;
std::cout << std::setprecision(12);
double d2r = math::d2r<T>();
//double r2d = math::r2d<T>();
std::string from = "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs";
std::string to = "+proj=longlat +ellps=airy +datum=OSGB36 +no_defs";
{
point pt(18.5 * d2r, 54.2 * d2r);
point pt2(0, 0);
segment seg(pt, pt);
segment seg2;
linestring ls; ls.push_back(pt);
linestring ls2;
ring rg; rg.push_back(pt);
ring rg2;
polygon poly; poly.outer() = rg;
polygon poly2;
mpoint mpt; mpt.push_back(pt);
mpoint mpt2;
mlinestring mls; mls.push_back(ls);
mlinestring mls2;
mpolygon mpoly; mpoly.push_back(poly);
mpolygon mpoly2;
transformation<> tr((proj4(from)), (proj4(to)));
//transformation<> tr((epsg(4326)), (epsg(25832)));
tr.forward(pt, pt2);
tr.forward(seg, seg2);
tr.forward(ls, ls2);
tr.forward(rg, rg2);
tr.forward(poly, poly2);
tr.forward(mpt, mpt2);
tr.forward(mls, mls2);
tr.forward(mpoly, mpoly2);
test::check_geometry(pt2, "POINT(0.322952937968 0.9459567165)", 0.001);
test::check_geometry(seg2, "LINESTRING(0.322952937968 0.9459567165,0.322952937968 0.9459567165)", 0.001);
test::check_geometry(ls2, "LINESTRING(0.322952937968 0.9459567165)", 0.001);
test::check_geometry(rg2, "POLYGON((0.322952937968 0.9459567165))", 0.001);
test::check_geometry(poly2, "POLYGON((0.322952937968 0.9459567165))", 0.001);
test::check_geometry(mpt2, "MULTIPOINT((0.322952937968 0.9459567165))", 0.001);
test::check_geometry(mls2, "MULTILINESTRING((0.322952937968 0.9459567165))", 0.001);
test::check_geometry(mpoly2, "MULTIPOLYGON(((0.322952937968 0.9459567165)))", 0.001);
tr.inverse(pt2, pt);
tr.inverse(seg2, seg);
tr.inverse(ls2, ls);
tr.inverse(rg2, rg);
tr.inverse(poly2, poly);
tr.inverse(mpt2, mpt);
tr.inverse(mls2, mls);
tr.inverse(mpoly2, mpoly);
test::check_geometry(pt, "POINT(0.322885911738 0.945968454552)", 0.001);
test::check_geometry(seg, "LINESTRING(0.322885911738 0.945968454552,0.322885911738 0.945968454552)", 0.001);
test::check_geometry(ls, "LINESTRING(0.322885911738 0.945968454552)", 0.001);
test::check_geometry(rg, "POLYGON((0.322885911738 0.945968454552))", 0.001);
test::check_geometry(poly, "POLYGON((0.322885911738 0.945968454552))", 0.001);
test::check_geometry(mpt, "MULTIPOINT((0.322885911738 0.945968454552))", 0.001);
test::check_geometry(mls, "MULTILINESTRING((0.322885911738 0.945968454552))", 0.001);
test::check_geometry(mpoly, "MULTIPOLYGON(((0.322885911738 0.945968454552)))", 0.001);
}
/*{
projPJ pj_from, pj_to;
pj_from = pj_init_plus(from.c_str());
pj_to = pj_init_plus(to.c_str());
double x = get<0>(pt_xy);
double y = get<1>(pt_xy);
pj_transform(pj_from, pj_to, 1, 0, &x, &y, NULL );
std::cout << x * r2d << " " << y * r2d << std::endl;
}*/
}
template <typename P1, typename P2, typename Tr>
inline void test_combination(Tr const& tr, P1 const& pt,
std::string const& expected_fwd,
P1 const& expected_inv)
{
using namespace boost::geometry;
P2 pt2;
tr.forward(pt, pt2);
test::check_geometry(pt2, expected_fwd, 0.001);
P1 pt1;
tr.inverse(pt2, pt1);
test::check_geometry(pt1, expected_inv, 0.001);
}
void test_combinations(std::string const& from, std::string const& to,
std::string const& in_deg,
std::string const& expected_deg,
std::string const& expected_rad,
std::string const& expected_inv_deg)
{
using namespace boost::geometry;
using namespace boost::geometry::model;
using namespace boost::geometry::srs;
typedef model::point<double, 2, cs::cartesian> xy;
typedef model::point<double, 2, cs::geographic<degree> > ll_d;
typedef model::point<double, 2, cs::geographic<radian> > ll_r;
//typedef model::point<double, 3, cs::cartesian> xyz;
//typedef model::point<double, 3, cs::geographic<degree> > llz_d;
//typedef model::point<double, 3, cs::geographic<radian> > llz_r;
transformation<> tr((proj4(from)), (proj4(to)));
ll_d d;
bg::read_wkt(in_deg, d);
ll_r r(bg::get_as_radian<0>(d), bg::get_as_radian<1>(d));
xy c(bg::get<0>(r), bg::get<1>(r));
ll_d inv_d;
bg::read_wkt(expected_inv_deg, inv_d);
ll_r inv_r(bg::get_as_radian<0>(inv_d), bg::get_as_radian<1>(inv_d));
xy inv_c(bg::get<0>(inv_r), bg::get<1>(inv_r));
test_combination<xy, xy>(tr, c, expected_rad, inv_c);
test_combination<xy, ll_r>(tr, c, expected_rad, inv_c);
test_combination<xy, ll_d>(tr, c, expected_deg, inv_c);
test_combination<ll_r, xy>(tr, r, expected_rad, inv_r);
test_combination<ll_r, ll_r>(tr, r, expected_rad, inv_r);
test_combination<ll_r, ll_d>(tr, r, expected_deg, inv_r);
test_combination<ll_d, xy>(tr, d, expected_rad, inv_d);
test_combination<ll_d, ll_r>(tr, d, expected_rad, inv_d);
test_combination<ll_d, ll_d>(tr, d, expected_deg, inv_d);
}
int test_main(int, char*[])
{
test_geometries<double>();
test_geometries<float>();
test_combinations("+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs",
"+proj=longlat +ellps=airy +datum=OSGB36 +no_defs",
"POINT(18.5 54.2)",
"POINT(18.5038403269 54.1993274575)",
"POINT(0.322952937968 0.9459567165)",
"POINT(18.5 54.2)");
test_combinations("+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs",
"+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +no_defs",
"POINT(18.5 54.2)",
"POINT(2059410.57968 7208125.2609)",
"POINT(2059410.57968 7208125.2609)",
"POINT(18.5 54.2)");
test_combinations("+proj=longlat +ellps=clrk80 +units=m +no_defs",
"+proj=tmerc +lat_0=0 +lon_0=-62 +k=0.9995000000000001 +x_0=400000 +y_0=0 +ellps=clrk80 +units=m +no_defs",
"POINT(1 1)",
"POINT(9413505.3284665551 237337.74515944949)",
"POINT(9413505.3284665551 237337.74515944949)",
// this result seems to be wrong, it's the same with projection
"POINT(-2.4463131191981073 1.5066638962045082)");
return 0;
}