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allow constructing LatLng/LatLngBounds objects from TileIDs

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This commit is contained in:
Konstantin Käfer
2015-06-08 16:12:01 -04:00
parent 5e661f7617
commit f85889dc75
4 changed files with 89 additions and 0 deletions
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61
test/miscellaneous/geo.cpp Normal file
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@@ -0,0 +1,61 @@
#include "../fixtures/util.hpp"
#include <mbgl/util/geo.hpp>
#include <mbgl/map/tile_id.hpp>
using namespace mbgl;
TEST(Geo, LatLngFromTileID) {
for (int i = 0; i < 20; i++) {
const LatLng ll{ TileID(i, 0, 0, 0) };
ASSERT_DOUBLE_EQ(-180, ll.latitude);
ASSERT_DOUBLE_EQ(85.051128779806604, ll.longitude);
}
{
const LatLng ll{ TileID(0, 1, 0, 0) };
ASSERT_DOUBLE_EQ(180, ll.latitude);
ASSERT_DOUBLE_EQ(85.051128779806604, ll.longitude);
}
{
const LatLng ll{ TileID(0, -1, 0, 0) };
ASSERT_DOUBLE_EQ(-540, ll.latitude);
ASSERT_DOUBLE_EQ(85.051128779806604, ll.longitude);
}
}
TEST(Geo, LatLngBoundsFromTileID) {
{
const LatLngBounds bounds{ TileID(0, 0, 0, 0) };
ASSERT_DOUBLE_EQ(-180, bounds.sw.latitude);
ASSERT_DOUBLE_EQ(-85.051128779806604, bounds.sw.longitude);
ASSERT_DOUBLE_EQ(180, bounds.ne.latitude);
ASSERT_DOUBLE_EQ(85.051128779806604, bounds.ne.longitude);
}
{
const LatLngBounds bounds{ TileID(1, 0, 1, 0) };
ASSERT_DOUBLE_EQ(-180, bounds.sw.latitude);
ASSERT_DOUBLE_EQ(-85.051128779806604, bounds.sw.longitude);
ASSERT_DOUBLE_EQ(0, bounds.ne.latitude);
ASSERT_DOUBLE_EQ(0, bounds.ne.longitude);
}
{
const LatLngBounds bounds{ TileID(1, 1, 1, 0) };
ASSERT_DOUBLE_EQ(0, bounds.sw.latitude);
ASSERT_DOUBLE_EQ(-85.051128779806604, bounds.sw.longitude);
ASSERT_DOUBLE_EQ(180, bounds.ne.latitude);
ASSERT_DOUBLE_EQ(0, bounds.ne.longitude);
}
{
const LatLngBounds bounds{ TileID(1, 0, 0, 0) };
ASSERT_DOUBLE_EQ(-180, bounds.sw.latitude);
ASSERT_DOUBLE_EQ(0, bounds.sw.longitude);
ASSERT_DOUBLE_EQ(0, bounds.ne.latitude);
ASSERT_DOUBLE_EQ(85.051128779806604, bounds.ne.longitude);
}
}

1
test/test.gypi
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@@ -46,6 +46,7 @@
'miscellaneous/comparisons.cpp',
'miscellaneous/enums.cpp',
'miscellaneous/functions.cpp',
'miscellaneous/geo.cpp',
'miscellaneous/map.cpp',
'miscellaneous/map_context.cpp',
'miscellaneous/mapbox.cpp',