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#include "testing/testing.hpp"
#include "indexer/geometry_coding.hpp"
#include "geometry/mercator.hpp"
#include "indexer/coding_params.hpp"
#include "indexer/indexer_tests/test_polylines.hpp"
#include "geometry/geometry_tests/large_polygon.hpp"
#include "geometry/distance.hpp"
#include "geometry/simplification.hpp"
#include "coding/byte_stream.hpp"
#include "coding/point_to_integer.hpp"
#include "coding/varint.hpp"
#include "coding/writer.hpp"
#include "base/logging.hpp"
typedef m2::PointU PU;
UNIT_TEST(EncodeDelta)
{
for (int x = -100; x <= 100; ++x)
{
for (int y = -100; y <= 100; ++y)
{
PU orig = PU(100 + x, 100 + y);
PU pred = PU(100, 100);
TEST_EQUAL(orig, DecodeDelta(EncodeDelta(orig, pred), pred), ());
vector<char> data;
PushBackByteSink<vector<char> > sink(data);
WriteVarUint(sink, EncodeDelta(orig, pred));
size_t expectedSize = 1;
if (x >= 8 || x < -8 || y >= 4 || y < -4) expectedSize = 2;
if (x >= 64 || x < -64 || y >= 64 || y < -64) expectedSize = 3;
TEST_EQUAL(data.size(), expectedSize, (x, y));
}
}
}
UNIT_TEST(PredictPointsInPolyline2)
{
// Ci = Ci-1 + (Ci-1 + Ci-2) / 2
TEST_EQUAL(PU(5, 5), PredictPointInPolyline(PU(8, 7), PU(4, 4), PU(1, 2)), ());
}
UNIT_TEST(PredictPointsInPolyline2_ClampMax)
{
// Ci = Ci-1 + (Ci-1 + Ci-2) / 2
TEST_EQUAL(PU(4, 4), PredictPointInPolyline(PU(4, 4), PU(4, 4), PU(1, 2)), ());
TEST_EQUAL(PU(5, 5), PredictPointInPolyline(PU(8, 7), PU(4, 4), PU(1, 2)), ());
TEST_EQUAL(PU(5, 5), PredictPointInPolyline(PU(5, 5), PU(4, 4), PU(1, 2)), ());
}
UNIT_TEST(PredictPointsInPolyline2_Clamp0)
{
TEST_EQUAL(PU(4, 0), PredictPointInPolyline(PU(5, 5), PU(4, 1), PU(4, 4)), ());
}
/*
UNIT_TEST(PredictPointsInPolyline3_Square)
{
TEST_EQUAL(PU(5, 1), PredictPointInPolyline(PU(6, 6), PU(5, 4), PU(2, 4), PU(2, 1)), ());
TEST_EQUAL(PU(5, 3), PredictPointInPolyline(PU(6, 6), PU(4, 1), PU(2, 2), PU(3, 4)), ());
}
UNIT_TEST(PredictPointsInPolyline3_SquareClamp0)
{
TEST_EQUAL(PU(5, 1), PredictPointInPolyline(PU(6, 6), PU(5, 4), PU(2, 4), PU(2, 1)), ());
TEST_EQUAL(PU(4, 0), PredictPointInPolyline(PU(6, 6), PU(2, 0), PU(3, 2), PU(5, 1)), ());
}
UNIT_TEST(PredictPointsInPolyline3_90deg)
{
TEST_EQUAL(PU(3, 2), PredictPointInPolyline(PU(8, 8), PU(3, 6), PU(1, 6), PU(1, 5)), ());
}
*/
namespace
{
void TestPolylineEncode(string testName,
vector<m2::PointU> const & points,
m2::PointU const & maxPoint,
void (* fnEncode)(geo_coding::InPointsT const & points,
m2::PointU const & basePoint,
m2::PointU const & maxPoint,
geo_coding::OutDeltasT & deltas),
void (* fnDecode)(geo_coding::InDeltasT const & deltas,
m2::PointU const & basePoint,
m2::PointU const & maxPoint,
geo_coding::OutPointsT & points))
{
size_t const count = points.size();
if (count == 0) return;
m2::PointU const basePoint = serial::CodingParams().GetBasePoint();
vector<uint64_t> deltas;
deltas.resize(count);
geo_coding::OutDeltasT deltasA(deltas);
fnEncode(make_read_adapter(points), basePoint, maxPoint, deltasA);
vector<m2::PointU> decodedPoints;
decodedPoints.resize(count);
geo_coding::OutPointsT decodedPointsA(decodedPoints);
fnDecode(make_read_adapter(deltas), basePoint, maxPoint, decodedPointsA);
TEST_EQUAL(points, decodedPoints, ());
if (points.size() > 10)
{
vector<char> data;
MemWriter<vector<char> > writer(data);
for (size_t i = 0; i != deltas.size(); ++i)
WriteVarUint(writer, deltas[i]);
LOG(LINFO, (testName, points.size(), data.size()));
}
}
vector<m2::PointU> SimplifyPoints(vector<m2::PointU> const & points, double eps)
{
vector<m2::PointU> simpPoints;
typedef m2::DistanceToLineSquare<m2::PointD> DistanceF;
DistanceF dist;
SimplifyNearOptimal(20, points.begin(), points.end(), eps, dist,
AccumulateSkipSmallTrg<DistanceF, m2::PointU>(dist, simpPoints, eps));
return simpPoints;
}
void TestEncodePolyline(string name, m2::PointU maxPoint, vector<m2::PointU> const & points)
{
using namespace geo_coding;
TestPolylineEncode(name + "1", points, maxPoint, &EncodePolylinePrev1, &DecodePolylinePrev1);
TestPolylineEncode(name + "2", points, maxPoint, &EncodePolylinePrev2, &DecodePolylinePrev2);
TestPolylineEncode(name + "3", points, maxPoint, &EncodePolylinePrev3, &DecodePolylinePrev3);
}
}
UNIT_TEST(EncodePolyline)
{
size_t const kSizes [] = { 0, 1, 2, 3, 4, ARRAY_SIZE(LargePolygon::kLargePolygon) };
m2::PointU const maxPoint(1000000000, 1000000000);
for (size_t iSize = 0; iSize < ARRAY_SIZE(kSizes); ++iSize)
{
size_t const polygonSize = kSizes[iSize];
vector<m2::PointU> points;
points.reserve(polygonSize);
for (size_t i = 0; i < polygonSize; ++i)
points.push_back(m2::PointU(static_cast<uint32_t>(LargePolygon::kLargePolygon[i].x * 10000),
static_cast<uint32_t>((LargePolygon::kLargePolygon[i].y + 200) * 10000)));
TestEncodePolyline("Unsimp", maxPoint, points);
TestEncodePolyline("1simp", maxPoint, SimplifyPoints(points, 1));
TestEncodePolyline("2simp", maxPoint, SimplifyPoints(points, 2));
TestEncodePolyline("4simp", maxPoint, SimplifyPoints(points, 4));
TestEncodePolyline("10simp", maxPoint, SimplifyPoints(points, 10));
TestEncodePolyline("100simp", maxPoint, SimplifyPoints(points, 100));
TestEncodePolyline("500simp", maxPoint, SimplifyPoints(points, 500));
TestEncodePolyline("1000simp", maxPoint, SimplifyPoints(points, 1000));
TestEncodePolyline("2000simp", maxPoint, SimplifyPoints(points, 2000));
TestEncodePolyline("4000simp", maxPoint, SimplifyPoints(points, 4000));
}
}
// see 476c1d1d125f0c2deb8c commit for special decode test
namespace
{
inline m2::PointU D2U(m2::PointD const & p)
{
return PointD2PointU(p, POINT_COORD_BITS);
}
inline m2::PointU GetMaxPoint()
{
return D2U(m2::PointD(MercatorBounds::maxX, MercatorBounds::maxY));
}
}
UNIT_TEST(DecodeEncodePolyline_DataSet1)
{
size_t const count = ARRAY_SIZE(index_test::arr1);
vector<m2::PointU> points;
points.reserve(count);
for (size_t i = 0; i < count; ++i)
points.push_back(D2U(index_test::arr1[i]));
TestPolylineEncode("DataSet1", points, GetMaxPoint(),
&geo_coding::EncodePolyline, &geo_coding::DecodePolyline);
}
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