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#include "catch.hpp"
// mapnik
#include <mapnik/wkb.hpp>
#include <mapnik/geometry.hpp>
#include <mapnik/geometry/boost_adapters.hpp>
#include <mapnik/geometry/is_empty.hpp>
#include <mapnik/util/geometry_to_wkt.hpp>
// bool
#include <boost/version.hpp>
#include <boost/geometry/algorithms/equals.hpp>
#include <boost/geometry/policies/compare.hpp>
// stl
#include "parse_hex.hpp"
#include <iostream>
#include <string>
#include <vector>
#include <fstream>
namespace {
struct spatially_equal_visitor
{
using result_type = bool;
result_type operator()(mapnik::geometry::geometry_empty, mapnik::geometry::geometry_empty) const { return true; }
result_type operator()(mapnik::geometry::geometry_collection<double> const& lhs,
mapnik::geometry::geometry_collection<double> const& rhs) const
{
std::size_t size0 = lhs.size();
std::size_t size1 = rhs.size();
if (size0 != size1)
return false;
for (std::size_t index = 0; index < size0; ++index)
{
if (!mapnik::util::apply_visitor(*this, lhs[index], rhs[index]))
return false;
}
return true;
}
result_type operator()(mapnik::geometry::multi_point<double> const& lhs,
mapnik::geometry::multi_point<double> const& rhs) const
{
std::size_t size0 = lhs.size();
std::size_t size1 = rhs.size();
if (size0 != size1)
return false;
auto tmp0 = lhs;
auto tmp1 = rhs;
std::sort(tmp0.begin(), tmp0.end(), boost::geometry::less<mapnik::geometry::point<double>>());
std::sort(tmp1.begin(), tmp1.end(), boost::geometry::less<mapnik::geometry::point<double>>());
for (std::size_t index = 0; index < size0; ++index)
{
if (!boost::geometry::equals(tmp0[index], tmp1[index]))
return false;
}
return true;
}
result_type operator()(mapnik::geometry::multi_line_string<double> const& lhs,
mapnik::geometry::multi_line_string<double> const& rhs) const
{
std::size_t size0 = lhs.size();
std::size_t size1 = rhs.size();
if (size0 != size1)
return false;
for (std::size_t index = 0; index < size0; ++index)
{
if (!boost::geometry::equals(lhs[index], rhs[index]))
return false;
}
return true;
}
template<typename T>
result_type operator()(T const& lhs, T const& rhs) const
{
if (mapnik::geometry::is_empty(lhs) && mapnik::geometry::is_empty(rhs))
return true; // Empty geometries of the same type are considered to be spatially equal
return boost::geometry::equals(lhs, rhs);
}
template<typename T0, typename T1>
result_type operator()(T0 const& lhs, T1 const& rhs) const
{
return false;
}
};
template<typename T>
bool spatially_equal(mapnik::geometry::geometry<T> const& g0, mapnik::geometry::geometry<T> const& g1)
{
return mapnik::util::apply_visitor(spatially_equal_visitor(), g0, g1);
}
} // namespace
TEST_CASE("Well-known-geometries")
{
SECTION("wkb+wkt")
{
std::string filename("test/unit/data/well-known-geometries.test");
std::ifstream is(filename.c_str(), std::ios_base::in | std::ios_base::binary);
if (!is)
throw std::runtime_error("could not open: '" + filename + "'");
for (std::string line; std::getline(is, line, '\n');)
{
std::vector<std::string> columns;
boost::split(columns, line, boost::is_any_of(";"));
REQUIRE(columns.size() == 3);
std::vector<char> wkb, twkb;
REQUIRE(mapnik::util::parse_hex(columns[1], wkb));
REQUIRE(mapnik::util::parse_hex(columns[2], twkb));
mapnik::geometry::geometry<double> geom_0 =
mapnik::geometry_utils::from_wkb(wkb.data(), wkb.size(), mapnik::wkbAuto);
mapnik::geometry::geometry<double> geom_1 = mapnik::geometry_utils::from_twkb(twkb.data(), twkb.size());
// compare WKTs as doubles
std::string wkt, wkt0, wkt1;
wkt = columns[0];
// wkt.erase(std::remove(wkt.begin(), wkt.end(), ' '), wkt.end());
// ^ we can't use this approach because spaces are part of format e.g POINT(100 200)
REQUIRE(mapnik::util::to_wkt(wkt0, geom_0));
REQUIRE(mapnik::util::to_wkt(wkt1, geom_1));
if (!mapnik::geometry::is_empty(geom_0) && !mapnik::geometry::is_empty(geom_1))
{
REQUIRE(wkt0 == wkt1);
REQUIRE(wkt0 == wkt); // WKT round-trip
// compare spatially (NOTE: GeometryCollection comparison also enforces strict order)
REQUIRE(spatially_equal(geom_0, geom_1));
}
// compare WKTS as ints
// note: mapnik::util::to_wkt<std::int64_t> used in mapnik-vt
std::string wkt2, wkt3;
mapnik::geometry::line_string<std::int64_t> geom_2;
geom_2.emplace_back(0, 0);
geom_2.emplace_back(1, 1);
geom_2.emplace_back(2, 2);
mapnik::geometry::line_string<std::int64_t> geom_3;
geom_3.emplace_back(0, 0);
geom_3.emplace_back(1, 1);
geom_3.emplace_back(2, 2);
REQUIRE(mapnik::util::to_wkt(wkt0, mapnik::geometry::geometry<std::int64_t>(geom_2)));
REQUIRE(mapnik::util::to_wkt(wkt1, mapnik::geometry::geometry<std::int64_t>(geom_3)));
if (!mapnik::geometry::is_empty(geom_2) && !mapnik::geometry::is_empty(geom_3))
{
REQUIRE(wkt2 == wkt3);
// compare spatially (NOTE: GeometryCollection comparison also enforces strict order)
}
}
}
}
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