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/**
* SPDX-License-Identifier: GPL-2.0-or-later
*
* This file is part of osm2pgsql (https://osm2pgsql.org/).
*
* Copyright (C) 2006-2023 by the osm2pgsql developer community.
* For a full list of authors see the git log.
*/
#include <catch.hpp>
#include "common-buffer.hpp"
#include "geom-from-osm.hpp"
#include "geom-functions.hpp"
#include "geom-output.hpp"
#include "geom.hpp"
TEST_CASE("polygon geometry without inner", "[NoDB]")
{
geom::geometry_t const geom{
geom::polygon_t{geom::ring_t{{0, 0}, {0, 1}, {1, 1}, {1, 0}, {0, 0}}}};
REQUIRE(dimension(geom) == 2);
REQUIRE(num_geometries(geom) == 1);
REQUIRE(area(geom) == Approx(1.0));
REQUIRE(length(geom) == Approx(0.0));
REQUIRE(geometry_type(geom) == "POLYGON");
REQUIRE(centroid(geom) == geom::geometry_t{geom::point_t{0.5, 0.5}});
REQUIRE(geometry_n(geom, 1) == geom);
}
TEST_CASE("polygon geometry without inner (reverse)", "[NoDB]")
{
geom::geometry_t const geom{
geom::polygon_t{geom::ring_t{{0, 0}, {1, 0}, {1, 1}, {0, 1}, {0, 0}}}};
REQUIRE(dimension(geom) == 2);
REQUIRE(num_geometries(geom) == 1);
REQUIRE(area(geom) == Approx(1.0));
REQUIRE(length(geom) == Approx(0.0));
REQUIRE(geometry_type(geom) == "POLYGON");
REQUIRE(centroid(geom) == geom::geometry_t{geom::point_t{0.5, 0.5}});
}
TEST_CASE("geom::polygon_t", "[NoDB]")
{
geom::polygon_t polygon;
REQUIRE(polygon.outer().empty());
polygon.outer() = geom::ring_t{{0, 0}, {0, 3}, {3, 3}, {3, 0}, {0, 0}};
polygon.inners().emplace_back(
geom::ring_t{{1, 1}, {2, 1}, {2, 2}, {1, 2}, {1, 1}});
REQUIRE(polygon.num_geometries() == 1);
REQUIRE(polygon.inners().size() == 1);
geom::geometry_t const geom{std::move(polygon)};
REQUIRE(dimension(geom) == 2);
REQUIRE(num_geometries(geom) == 1);
REQUIRE(area(geom) == Approx(8.0));
REQUIRE(length(geom) == Approx(0.0));
REQUIRE(geometry_type(geom) == "POLYGON");
REQUIRE(centroid(geom) == geom::geometry_t{geom::point_t{1.5, 1.5}});
auto const geom_rev = reverse(geom);
REQUIRE(geom_rev.is_polygon());
auto const &rev = geom_rev.get<geom::polygon_t>();
REQUIRE(rev.outer() ==
geom::ring_t{{0, 0}, {3, 0}, {3, 3}, {0, 3}, {0, 0}});
REQUIRE(rev.inners().size() == 1);
REQUIRE(rev.inners()[0] ==
geom::ring_t{{1, 1}, {1, 2}, {2, 2}, {2, 1}, {1, 1}});
}
TEST_CASE("create_polygon from OSM data", "[NoDB]")
{
test_buffer_t buffer;
buffer.add_way("w20 Nn1x1y1,n2x2y1,n3x2y2,n4x1y2,n1x1y1");
auto const geom = geom::create_polygon(buffer.buffer().get<osmium::Way>(0));
REQUIRE(geom.is_polygon());
REQUIRE(geometry_type(geom) == "POLYGON");
REQUIRE(dimension(geom) == 2);
REQUIRE(num_geometries(geom) == 1);
REQUIRE(area(geom) == Approx(1.0));
REQUIRE(length(geom) == Approx(0.0));
REQUIRE(
geom.get<geom::polygon_t>() ==
geom::polygon_t{geom::ring_t{{1, 1}, {2, 1}, {2, 2}, {1, 2}, {1, 1}}});
REQUIRE(centroid(geom) == geom::geometry_t{geom::point_t{1.5, 1.5}});
}
TEST_CASE("create_polygon from OSM data (reverse)", "[NoDB]")
{
test_buffer_t buffer;
buffer.add_way("w20 Nn1x1y1,n2x1y2,n3x2y2,n4x2y1,n1x1y1");
auto const geom = geom::create_polygon(buffer.buffer().get<osmium::Way>(0));
REQUIRE(geom.is_polygon());
REQUIRE(geometry_type(geom) == "POLYGON");
REQUIRE(num_geometries(geom) == 1);
REQUIRE(area(geom) == Approx(1.0));
REQUIRE(length(geom) == Approx(0.0));
REQUIRE(
geom.get<geom::polygon_t>() ==
geom::polygon_t{geom::ring_t{{1, 1}, {2, 1}, {2, 2}, {1, 2}, {1, 1}}});
REQUIRE(centroid(geom) == geom::geometry_t{geom::point_t{1.5, 1.5}});
}
TEST_CASE("create_polygon from OSM data without locations", "[NoDB]")
{
test_buffer_t buffer;
buffer.add_way("w20 Nn1,n2,n3,n1");
auto const geom = geom::create_polygon(buffer.buffer().get<osmium::Way>(0));
REQUIRE(geom.is_null());
}
TEST_CASE("create_polygon from invalid OSM data (single node)", "[NoDB]")
{
test_buffer_t buffer;
buffer.add_way("w20 Nn1x1y1");
auto const geom = geom::create_polygon(buffer.buffer().get<osmium::Way>(0));
REQUIRE(geom.is_null());
}
TEST_CASE("create_polygon from invalid OSM data (way node closed)", "[NoDB]")
{
test_buffer_t buffer;
buffer.add_way("w20 Nn1x1y1,n2x2y2");
auto const geom = geom::create_polygon(buffer.buffer().get<osmium::Way>(0));
REQUIRE(geom.is_null());
}
TEST_CASE("create_polygon from invalid OSM data (self-intersection)", "[NoDB]")
{
test_buffer_t buffer;
buffer.add_way("w20 Nn1x1y1,n2x1y2,n3x2y1,n4x2y2,n1x1y1");
auto const geom = geom::create_polygon(buffer.buffer().get<osmium::Way>(0));
REQUIRE(geom.is_null());
}
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