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[core] Add batch conversion of latLngs to/from screenCoords (#15891)

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* [core] Add batch conversion of latLng vs screenCoord

* [core] Take the simple approach
This commit is contained in:
zmiao
2019-11-07 18:16:31 +02:00
committed by GitHub
parent 1d49c23b85
commit 2e8a350d68
5 changed files with 101 additions and 15 deletions
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16
test/api/query.test.cpp
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@@ -75,10 +75,22 @@ std::vector<Feature> getTopClusterFeature(QueryTest& test) {
TEST(Query, QueryRenderedFeatures) {
QueryTest test;
auto features1 = test.frontend.getRenderer()->queryRenderedFeatures(test.map.pixelForLatLng({ 0, 0 }));
// Batch conversion of latLngs to pixels
auto points = test.map.pixelsForLatLngs({{0, 0}, {9, 9}});
ASSERT_EQ(2, points.size());
// Single conversion of latLng to pixel
auto point0 = test.map.pixelForLatLng({0, 0});
ASSERT_NEAR(points[0].x, point0.x, 1e-8);
ASSERT_NEAR(points[0].y, point0.y, 1e-8);
auto point1 = test.map.pixelForLatLng({9, 9});
ASSERT_NEAR(points[1].x, point1.x, 1e-8);
ASSERT_NEAR(points[1].y, point1.y, 1e-8);
auto features1 = test.frontend.getRenderer()->queryRenderedFeatures(point0);
EXPECT_EQ(features1.size(), 4u);
auto features2 = test.frontend.getRenderer()->queryRenderedFeatures(test.map.pixelForLatLng({ 9, 9 }));
auto features2 = test.frontend.getRenderer()->queryRenderedFeatures(point1);
EXPECT_EQ(features2.size(), 0u);
}