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Re-enable simplify_converter tests + add radial-distance tests (#4348)

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This commit is contained in:
Artem Pavlenko 2022-09-23 09:32:06 +01:00
parent 81103491b4
commit 9e8e178160
1 changed files with 86 additions and 41 deletions
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113
test/unit/vertex_adapter/simplify_converters_test.cpp
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@ -1,10 +1,13 @@
#include "catch.hpp"
//#include <mapnik/wkt/wkt_factory.hpp>
//#include <mapnik/wkt/wkt_generator_grammar.hpp>
//#include <mapnik/simplify.hpp>
//#include <mapnik/simplify_converter.hpp>
#include <mapnik/geometry/geometry_type.hpp>
#include <mapnik/wkt/wkt_factory.hpp>
#include <mapnik/wkt/wkt_generator_grammar.hpp>
#include <mapnik/simplify.hpp>
#include <mapnik/simplify_converter.hpp>
#include <mapnik/vertex_adapters.hpp>
#include <mapnik/util/geometry_to_wkt.hpp>
// stl
#include <stdexcept>
@ -12,73 +15,115 @@
// Convenience method for test cases
void simplify(std::string const& wkt_in, double tolerance, std::string const& method, std::string const& expected)
{
#if 0 // FIXME
//grab the geom
mapnik::geometry_container multi_input;
if (!mapnik::from_wkt(wkt_in , multi_input))
mapnik::geometry::geometry<double> input;
if (!mapnik::from_wkt(wkt_in , input))
{
throw std::runtime_error("Failed to parse WKT");
}
//setup the generalization
mapnik::vertex_adapter va(multi_input.front());
mapnik::simplify_converter<mapnik::vertex_adapter> generalizer(va);
//setup the generalization for LineStings
if (mapnik::geometry::geometry_type(input) == mapnik::geometry::geometry_types::LineString)
{
mapnik::geometry::line_string<double> line = input.get<mapnik::geometry::line_string<double>>();
mapnik::geometry::line_string_vertex_adapter<double> va(line);
mapnik::simplify_converter<mapnik::geometry::line_string_vertex_adapter<double>> generalizer(va);
generalizer.set_simplify_algorithm(mapnik::simplify_algorithm_from_string(method).get());
generalizer.set_simplify_tolerance(tolerance);
//suck the vertices back out of it
mapnik::geometry_type* output = new mapnik::geometry_type(multi_input.front().type());
mapnik::geometry::line_string<double> output;
mapnik::CommandType cmd;
double x, y;
while ((cmd = (mapnik::CommandType)generalizer.vertex(&x, &y)) != mapnik::SEG_END)
{
output->push_vertex(x, y, cmd);
output.emplace_back(x, y);
}
//construct the answer
mapnik::geometry_container multi_out;
multi_out.push_back(output);
std::string wkt_out;
REQUIRE(mapnik::to_wkt(multi_out, wkt_out));
REQUIRE(mapnik::util::to_wkt(wkt_out, output));
REQUIRE(wkt_out == expected);
#endif
}
}
TEST_CASE("converters")
{
SECTION("simplify")
SECTION("simplify-douglas-peucker")
{
simplify(std::string("LineString(0 0,2 2,3 5,4 1,5 0,6 7,7 0)"),
simplify(std::string("LINESTRING(0 0,2 2,3 5,4 1,5 0,6 7,7 0)"),
4,
"douglas-peucker",
std::string("LineString(0 0,6 7,7 0)"));
std::string("LINESTRING(0 0,6 7,7 0)"));
simplify(std::string("LineString(0 0,2 2,3 5,4 1,5 0,6 7,7 0)"),
simplify(std::string("LINESTRING(0 0,2 2,3 5,4 1,5 0,6 7,7 0)"),
2,
"douglas-peucker",
std::string("LineString(0 0,3 5,5 0,6 7,7 0)"));
std::string("LINESTRING(0 0,3 5,5 0,6 7,7 0)"));
simplify(
std::string("LineString(10 0,9 -4,7 -7,4 -9,0 -10,-4 -9,-7 -7,-9 -4,-10 0,-9 4,-7 7,-4 9,0 10,4 9,7 7,9 4)"),
std::string("LINESTRING(10 0,9 -4,7 -7,4 -9,0 -10,-4 -9,-7 -7,-9 -4,-10 0,-9 4,-7 7,-4 9,0 10,4 9,7 7,9 4)"),
4,
"douglas-peucker",
std::string("LineString(10 0,0 -10,-10 0,0 10,9 4)"));
std::string("LINESTRING(10 0,0 -10,-10 0,0 10,9 4)"));
simplify(std::string("LineString(0 0,1 1,2 2,0 10,0 0)"),
simplify(std::string("LINESTRING(0 0,1 1,2 2,0 10,0 0)"),
10,
"douglas-peucker",
std::string("LineString(0 0,0 0)"));
std::string("LINESTRING(0 0,0 0)"));
simplify(std::string("LineString(0 0,1 1,2 2,0 10,0 0)"),
simplify(std::string("LINESTRING(0 0,1 1,2 2,0 10,0 0)"),
8,
"douglas-peucker",
std::string("LineString(0 0,0 10,0 0)"));
std::string("LINESTRING(0 0,0 10,0 0)"));
simplify(std::string("LineString(0 0,1 1,2 2,0 10,0 0)"),
simplify(std::string("LINESTRING(0 0,1 1,2 2,0 10,0 0)"),
1,
"douglas-peucker",
std::string("LineString(0 0,2 2,0 10,0 0)"));
std::string("LINESTRING(0 0,2 2,0 10,0 0)"));
simplify(std::string("LineString(0 0, 1 -1, 2 2, 0 -10, 0 0, -5 7, 4 6)"),
simplify(std::string("LINESTRING(0 0, 1 -1, 2 2, 0 -10, 0 0, -5 7, 4 6)"),
3,
"douglas-peucker",
std::string("LineString(0 0,0 -10,-5 7,4 6)"));
std::string("LINESTRING(0 0,0 -10,-5 7,4 6)"));
simplify(std::string("LINESTRING(19.1425676643848 48.3706356666503,19.1425502300262 48.3706623938922,19.1425006091595 48.3706410120998,19.1425113379955 48.3706784302306,19.1424550116062 48.3706632848,19.1424348950386 48.3707069392642,19.1423343122005 48.3706632848,19.1422645747662 48.3706677393389,19.1411232948303 48.3712040629718,19.1395568847656 48.3707336664687,19.1382908821106 48.3711042822585,19.1368532180786 48.3705055938728,19.1365367174149 48.3702775202553,19.1362524032593 48.3704022481414,19.1361290216446 48.3702917748863,19.1359841823578 48.3703594843292,19.1358715295792 48.3702953385434,19.1357481479645 48.3703844298907,19.1356247663498 48.3703452297171,19.1356556117535 48.3704075936154,19.1355912387371 48.3704102663522,19.1355885565281 48.3704432300945)"),
0.0001,
"douglas-peucker",
std::string("LINESTRING(19.1425676643848 48.3706356666503,19.1411232948303 48.3712040629718,19.1395568847656 48.3707336664687,19.1382908821106 48.3711042822585,19.1365367174149 48.3702775202553,19.1355885565281 48.3704432300945)"));
}
SECTION("simplify-radial-distance")
{
simplify(std::string("LINESTRING(0 0,2 2,3 5,4 1,5 0,6 7,7 0)"),
40,
"radial-distance",
std::string("LINESTRING(0 0,6 7,7 0)"));
simplify(std::string("LINESTRING(0 0,2 2,3 5,4 1,5 0,6 7,7 0)"),
20,
"radial-distance",
std::string("LINESTRING(0 0,3 5,5 0,6 7,7 0)"));
simplify(
std::string("LINESTRING(10 0,9 -4,7 -7,4 -9,0 -10,-4 -9,-7 -7,-9 -4,-10 0,-9 4,-7 7,-4 9,0 10,4 9,7 7,9 4)"),
40,
"radial-distance",
std::string("LINESTRING(10 0,7 -7,0 -10,-7 -7,-10 0,-7 7,0 10,7 7,9 4)"));
simplify(std::string("LINESTRING(0 0,1 1,2 2,0 10,0 0)"),
100,
"radial-distance",
std::string("LINESTRING(0 0,0 0)"));
simplify(std::string("LINESTRING(0 0,1 1,2 2,0 10,0 0)"),
10,
"radial-distance",
std::string("LINESTRING(0 0,0 10,0 0)"));
simplify(std::string("LINESTRING(0 0, 1 -1, 2 2, 0 -10, 0 0, -5 7, 4 6)"),
30,
"radial-distance",
std::string("LINESTRING(0 0,0 -10,0 0,-5 7,4 6)"));
simplify(std::string("LINESTRING(19.1425676643848 48.3706356666503,19.1425502300262 48.3706623938922,19.1425006091595 48.3706410120998,19.1425113379955 48.3706784302306,19.1424550116062 48.3706632848,19.1424348950386 48.3707069392642,19.1423343122005 48.3706632848,19.1422645747662 48.3706677393389,19.1411232948303 48.3712040629718,19.1395568847656 48.3707336664687,19.1382908821106 48.3711042822585,19.1368532180786 48.3705055938728,19.1365367174149 48.3702775202553,19.1362524032593 48.3704022481414,19.1361290216446 48.3702917748863,19.1359841823578 48.3703594843292,19.1358715295792 48.3702953385434,19.1357481479645 48.3703844298907,19.1356247663498 48.3703452297171,19.1356556117535 48.3704075936154,19.1355912387371 48.3704102663522,19.1355885565281 48.3704432300945)"),
0.000001,
"radial-distance",
std::string("LINESTRING(19.1425676643848 48.3706356666503,19.1411232948303 48.3712040629718,19.1395568847656 48.3707336664687,19.1382908821106 48.3711042822585,19.1368532180786 48.3705055938728,19.1358715295792 48.3702953385434,19.1355885565281 48.3704432300945)"));
}
}