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MapLibreParticleLab/test/map/transform.test.cpp
Adrian Cojocaru 08eb760acd Add action journal (#3409) 
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Bart Louwers <bart@emeel.net>
2025-05-27 16:15:56 +03:00

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#include <mbgl/test/util.hpp>
#include <gmock/gmock.h>
#include <cmath>
#include <mbgl/map/transform.hpp>
#include <mbgl/math/angles.hpp>
#include <mbgl/util/geo.hpp>
#include <mbgl/util/quaternion.hpp>
#include <numbers>
using namespace std::numbers;
using namespace mbgl;
TEST(Transform, InvalidZoom) {
Transform transform;
transform.resize({1, 1});
ASSERT_DOUBLE_EQ(0, transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(0, transform.getLatLng().longitude());
ASSERT_DOUBLE_EQ(0, transform.getZoom());
transform.jumpTo(CameraOptions().withZoom(1.0));
ASSERT_DOUBLE_EQ(1, transform.getZoom());
const double invalid = NAN;
transform.jumpTo(CameraOptions().withZoom(invalid));
ASSERT_DOUBLE_EQ(0, transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(0, transform.getLatLng().longitude());
ASSERT_DOUBLE_EQ(1, transform.getZoom());
transform.jumpTo(CameraOptions().withCenter(LatLng()).withZoom(invalid));
ASSERT_DOUBLE_EQ(0, transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(0, transform.getLatLng().longitude());
ASSERT_DOUBLE_EQ(1, transform.getZoom());
transform.jumpTo(CameraOptions().withZoom(transform.getState().getMaxZoom() + 0.1));
ASSERT_DOUBLE_EQ(transform.getZoom(), transform.getState().getMaxZoom());
// Executing flyTo with an empty size causes frameZoom to be NaN.
transform.flyTo(CameraOptions()
.withCenter(LatLng{util::LATITUDE_MAX, util::LONGITUDE_MAX})
.withZoom(transform.getState().getMaxZoom()));
transform.updateTransitions(transform.getTransitionStart() + transform.getTransitionDuration());
ASSERT_DOUBLE_EQ(transform.getZoom(), transform.getState().getMaxZoom());
// Executing flyTo with maximum zoom level to the same zoom level causes
// frameZoom to be bigger than maximum zoom.
transform.resize(Size{100, 100});
transform.flyTo(CameraOptions()
.withCenter(LatLng{util::LATITUDE_MAX, util::LONGITUDE_MAX})
.withZoom(transform.getState().getMaxZoom()));
transform.updateTransitions(transform.getTransitionStart() + transform.getTransitionDuration());
ASSERT_TRUE(transform.getState().valid());
ASSERT_DOUBLE_EQ(transform.getState().getMaxZoom(), transform.getZoom());
}
TEST(Transform, InvalidBearing) {
Transform transform;
transform.resize({1, 1});
ASSERT_DOUBLE_EQ(0, transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(0, transform.getLatLng().longitude());
ASSERT_DOUBLE_EQ(0, transform.getZoom());
transform.jumpTo(CameraOptions().withZoom(1.0).withBearing(2.0));
ASSERT_DOUBLE_EQ(0, transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(0, transform.getLatLng().longitude());
ASSERT_DOUBLE_EQ(1, transform.getZoom());
ASSERT_DOUBLE_EQ(util::deg2rad(-2.0), transform.getBearing());
const double invalid = NAN;
transform.jumpTo(CameraOptions().withBearing(invalid));
ASSERT_DOUBLE_EQ(0, transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(0, transform.getLatLng().longitude());
ASSERT_DOUBLE_EQ(1, transform.getZoom());
ASSERT_DOUBLE_EQ(util::deg2rad(-2.0), transform.getBearing());
}
TEST(Transform, IntegerZoom) {
Transform transform;
transform.resize({1, 1});
auto checkIntegerZoom = [&transform](uint8_t zoomInt, double zoom) {
transform.jumpTo(CameraOptions().withZoom(zoom));
ASSERT_NEAR(transform.getZoom(), zoom, 1e-8);
ASSERT_EQ(transform.getState().getIntegerZoom(), zoomInt);
ASSERT_NEAR(transform.getState().getZoomFraction(), zoom - zoomInt, 1e-8);
};
for (uint8_t zoomInt = 0; zoomInt < 20; ++zoomInt) {
for (uint32_t percent = 0; percent < 100; ++percent) {
double zoom = zoomInt + (0.01 * percent);
checkIntegerZoom(zoomInt, zoom);
}
}
// Special case zoom 20.
checkIntegerZoom(20, 20.0);
}
TEST(Transform, PerspectiveProjection) {
LatLng loc;
Transform transform;
transform.resize({1000, 1000});
// 0.9 rad ~ 51.56620156 deg
transform.jumpTo(CameraOptions().withCenter(LatLng{38.0, -77.0}).withZoom(10.0).withPitch(51.56620156));
// expected values are from maplibre-gl-js
loc = transform.getLatLng();
ASSERT_DOUBLE_EQ(-77, loc.longitude());
ASSERT_DOUBLE_EQ(38, loc.latitude());
loc = transform.getState().screenCoordinateToLatLng({0, 1000});
ASSERT_NEAR(-77.59198961199148, loc.longitude(), 1e-6);
ASSERT_NEAR(38.74661326302018, loc.latitude(), 1e-6);
loc = transform.getState().screenCoordinateToLatLng({1000, 0});
ASSERT_NEAR(-76.75823239205641, loc.longitude(), 1e-6);
ASSERT_NEAR(37.692872969426375, loc.latitude(), 1e-6);
ScreenCoordinate point = transform.getState().latLngToScreenCoordinate({38.74661326302018, -77.59198961199148});
ASSERT_NEAR(point.x, 0.0, 1e-5);
ASSERT_NEAR(point.y, 1000.0, 1e-4);
point = transform.getState().latLngToScreenCoordinate({37.692872969426375, -76.75823239205641});
ASSERT_NEAR(point.x, 1000.0, 1e-5);
ASSERT_NEAR(point.y, 0.0, 1e-4);
mbgl::vec4 p;
point = transform.getState().latLngToScreenCoordinate({37.692872969426375, -76.75823239205641}, p);
ASSERT_NEAR(point.x, 1000.0, 1e-5);
ASSERT_NEAR(point.y, 0.0, 1e-4);
ASSERT_GT(p[3], 0.0);
transform.jumpTo(CameraOptions().withCenter(LatLng{38.0, -77.0}).withZoom(18.0).withPitch(51.56620156));
point = transform.getState().latLngToScreenCoordinate({7.692872969426375, -76.75823239205641}, p);
ASSERT_LT(p[3], 0.0);
}
TEST(Transform, UnwrappedLatLng) {
Transform transform;
transform.resize({1000, 1000});
// 0.9 rad ~ 51.56620156 deg
transform.jumpTo(CameraOptions().withCenter(LatLng{38.0, -77.0}).withZoom(10.0).withPitch(51.56620156));
const TransformState& state = transform.getState();
LatLng fromGetLatLng = state.getLatLng();
ASSERT_DOUBLE_EQ(fromGetLatLng.latitude(), 38.0);
ASSERT_DOUBLE_EQ(fromGetLatLng.longitude(), -77.0);
LatLng fromScreenCoordinate = state.screenCoordinateToLatLng({500, 500});
ASSERT_NEAR(fromScreenCoordinate.latitude(), 38.0, 1e-8);
ASSERT_NEAR(fromScreenCoordinate.longitude(), -77.0, 1e-8);
LatLng wrappedRightwards = state.screenCoordinateToLatLng(state.latLngToScreenCoordinate({38, 283}));
ASSERT_NEAR(wrappedRightwards.latitude(), 38.0, 1e-8);
ASSERT_NEAR(wrappedRightwards.longitude(), 283.0, 1e-8);
wrappedRightwards.wrap();
ASSERT_NEAR(wrappedRightwards.longitude(), -77.0, 1e-8);
LatLng wrappedLeftwards = state.screenCoordinateToLatLng(state.latLngToScreenCoordinate({38, -437}));
ASSERT_DOUBLE_EQ(wrappedLeftwards.latitude(), wrappedRightwards.latitude());
ASSERT_NEAR(wrappedLeftwards.longitude(), -437.0, 1e-8);
wrappedLeftwards.wrap();
ASSERT_NEAR(wrappedLeftwards.longitude(), -77.0, 1e-8);
}
TEST(Transform, ConstrainHeightOnly) {
Transform transform(TransformObserver::nullObserver(), ConstrainMode::HeightOnly);
transform.resize({2, 2});
transform.jumpTo(CameraOptions().withCenter(LatLngBounds::world().southwest()).withZoom(util::MAX_ZOOM));
ASSERT_NEAR(-util::LATITUDE_MAX, transform.getLatLng().latitude(), 1e-7);
ASSERT_NEAR(-util::LONGITUDE_MAX, transform.getLatLng().longitude(), 1e-7);
transform.jumpTo(CameraOptions().withCenter(LatLngBounds::world().northeast()));
ASSERT_NEAR(util::LATITUDE_MAX, transform.getLatLng().latitude(), 1e-7);
ASSERT_NEAR(-util::LONGITUDE_MAX, transform.getLatLng().longitude(), 1e-7);
}
TEST(Transform, ConstrainWidthAndHeight) {
Transform transform(TransformObserver::nullObserver(), ConstrainMode::WidthAndHeight);
transform.resize({2, 2});
transform.jumpTo(CameraOptions().withCenter(LatLngBounds::world().southwest()).withZoom(util::MAX_ZOOM));
ASSERT_NEAR(-util::LATITUDE_MAX, transform.getLatLng().latitude(), 1e-7);
ASSERT_NEAR(-util::LONGITUDE_MAX, transform.getLatLng().longitude(), 1e-6);
transform.jumpTo(CameraOptions().withCenter(LatLngBounds::world().northeast()));
ASSERT_NEAR(util::LATITUDE_MAX, transform.getLatLng().latitude(), 1e-7);
ASSERT_NEAR(-util::LONGITUDE_MAX, transform.getLatLng().longitude(), 1e-6);
}
TEST(Transform, Anchor) {
Transform transform;
transform.resize({1000, 1000});
const LatLng latLng{10, -100};
const ScreenCoordinate anchorPoint = {150, 150};
transform.jumpTo(CameraOptions().withCenter(latLng).withZoom(10.0));
ASSERT_DOUBLE_EQ(latLng.latitude(), transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(latLng.longitude(), transform.getLatLng().longitude());
ASSERT_DOUBLE_EQ(10, transform.getZoom());
ASSERT_DOUBLE_EQ(0, transform.getBearing());
const LatLng anchorLatLng = transform.getState().screenCoordinateToLatLng(anchorPoint);
ASSERT_NE(latLng.latitude(), anchorLatLng.latitude());
ASSERT_NE(latLng.longitude(), anchorLatLng.longitude());
transform.jumpTo(CameraOptions().withCenter(latLng).withZoom(3.0));
ASSERT_DOUBLE_EQ(3, transform.getZoom());
ASSERT_DOUBLE_EQ(latLng.latitude(), transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(latLng.longitude(), transform.getLatLng().longitude());
transform.jumpTo(CameraOptions().withZoom(3.5));
ASSERT_DOUBLE_EQ(3.5, transform.getZoom());
ASSERT_DOUBLE_EQ(latLng.latitude(), transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(latLng.longitude(), transform.getLatLng().longitude());
transform.jumpTo(CameraOptions().withZoom(5.5).withAnchor(anchorPoint));
ASSERT_DOUBLE_EQ(5.5, transform.getZoom());
ASSERT_NE(latLng.latitude(), transform.getLatLng().latitude());
ASSERT_NE(latLng.longitude(), transform.getLatLng().longitude());
transform.jumpTo(CameraOptions().withCenter(latLng).withZoom(3.0));
ASSERT_DOUBLE_EQ(3, transform.getZoom());
ASSERT_DOUBLE_EQ(latLng.latitude(), transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(latLng.longitude(), transform.getLatLng().longitude());
transform.jumpTo(CameraOptions().withZoom(5.0));
ASSERT_DOUBLE_EQ(5, transform.getZoom());
ASSERT_DOUBLE_EQ(latLng.latitude(), transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(latLng.longitude(), transform.getLatLng().longitude());
transform.jumpTo(CameraOptions().withZoom(7.0).withAnchor(anchorPoint));
ASSERT_DOUBLE_EQ(7, transform.getZoom());
ASSERT_NE(latLng.latitude(), transform.getLatLng().latitude());
ASSERT_NE(latLng.longitude(), transform.getLatLng().longitude());
transform.jumpTo(CameraOptions().withCenter(latLng).withZoom(2.0));
ASSERT_DOUBLE_EQ(2, transform.getZoom());
ASSERT_DOUBLE_EQ(latLng.latitude(), transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(latLng.longitude(), transform.getLatLng().longitude());
transform.jumpTo(CameraOptions().withZoom(4.0));
ASSERT_DOUBLE_EQ(4, transform.getZoom());
ASSERT_DOUBLE_EQ(latLng.latitude(), transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(latLng.longitude(), transform.getLatLng().longitude());
transform.jumpTo(CameraOptions().withZoom(8.0).withAnchor(anchorPoint));
ASSERT_DOUBLE_EQ(8, transform.getZoom());
ASSERT_NE(latLng.latitude(), transform.getLatLng().latitude());
ASSERT_NE(latLng.longitude(), transform.getLatLng().longitude());
transform.jumpTo(CameraOptions().withCenter(latLng).withZoom(10.0).withBearing(-45.0));
ASSERT_DOUBLE_EQ(pi / 4, transform.getBearing());
ASSERT_DOUBLE_EQ(latLng.latitude(), transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(latLng.longitude(), transform.getLatLng().longitude());
transform.jumpTo(CameraOptions().withBearing(0.0));
ASSERT_DOUBLE_EQ(0, transform.getBearing());
ASSERT_DOUBLE_EQ(latLng.latitude(), transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(latLng.longitude(), transform.getLatLng().longitude());
transform.jumpTo(CameraOptions().withBearing(45.0).withAnchor(anchorPoint));
ASSERT_DOUBLE_EQ(util::deg2rad(-45.0), transform.getBearing());
// Anchor coordinates are imprecise because we are converting from an integer pixel.
ASSERT_NEAR(anchorLatLng.latitude(), transform.getLatLng().latitude(), 0.5);
ASSERT_NEAR(anchorLatLng.longitude(), transform.getLatLng().longitude(), 0.5);
transform.jumpTo(CameraOptions().withCenter(latLng).withZoom(10.0).withPitch(10.0));
ASSERT_DOUBLE_EQ(util::deg2rad(10.0), transform.getPitch());
ASSERT_DOUBLE_EQ(latLng.latitude(), transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(latLng.longitude(), transform.getLatLng().longitude());
transform.jumpTo(CameraOptions().withPitch(15.0));
ASSERT_DOUBLE_EQ(util::deg2rad(15.0), transform.getPitch());
ASSERT_DOUBLE_EQ(latLng.latitude(), transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(latLng.longitude(), transform.getLatLng().longitude());
transform.jumpTo(CameraOptions().withPitch(20.0).withAnchor(anchorPoint));
ASSERT_DOUBLE_EQ(util::deg2rad(20.0), transform.getPitch());
// Anchor coordinates are imprecise because we are converting from an integer pixel.
ASSERT_NEAR(anchorLatLng.latitude(), transform.getLatLng().latitude(), 0.5);
ASSERT_NEAR(anchorLatLng.longitude(), transform.getLatLng().longitude(), 0.5);
}
TEST(Transform, Padding) {
Transform transform;
transform.resize({1000, 1000});
ASSERT_DOUBLE_EQ(0, transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(0, transform.getLatLng().longitude());
CameraOptions nonPaddedCameraOptions = CameraOptions().withCenter(LatLng{10, -100}).withZoom(10.0);
transform.jumpTo(nonPaddedCameraOptions);
const LatLng trueCenter = transform.getLatLng();
ASSERT_DOUBLE_EQ(10, trueCenter.latitude());
ASSERT_DOUBLE_EQ(-100, trueCenter.longitude());
ASSERT_DOUBLE_EQ(10, transform.getZoom());
const LatLng screenCenter = transform.screenCoordinateToLatLng({
1000.0 / 2.0,
1000.0 / 2.0,
});
const LatLng upperHalfCenter = transform.screenCoordinateToLatLng({
1000.0 / 2.0,
1000.0 * 0.25,
});
EdgeInsets padding(1000.0 / 2.0, 0, 0, 0);
// CameraOption center and zoom don't change when padding changes: center of
// viewport remains the same as padding defines viwport center offset in rendering.
CameraOptions paddedOptions = CameraOptions().withPadding(padding);
transform.jumpTo(paddedOptions);
const LatLng theSameCenter = transform.getLatLng();
ASSERT_DOUBLE_EQ(trueCenter.latitude(), theSameCenter.latitude());
ASSERT_DOUBLE_EQ(trueCenter.longitude(), theSameCenter.longitude());
// However, LatLng is now at the center of lower half - verify conversion
// from screen coordinate to LatLng.
const LatLng paddedLowerHalfScreenCenter = transform.screenCoordinateToLatLng({
1000.0 / 2.0,
1000.0 * 0.75,
});
ASSERT_NEAR(screenCenter.latitude(), paddedLowerHalfScreenCenter.latitude(), 1e-10);
ASSERT_NEAR(screenCenter.longitude(), paddedLowerHalfScreenCenter.longitude(), 1e-10);
// LatLng previously in upper half center, should now be under screen center.
const LatLng paddedScreenCenter = transform.screenCoordinateToLatLng({
1000.0 / 2.0,
1000.0 / 2.0,
});
ASSERT_NEAR(upperHalfCenter.latitude(), paddedScreenCenter.latitude(), 1e-10);
ASSERT_NEAR(upperHalfCenter.longitude(), paddedScreenCenter.longitude(), 1e-10);
}
TEST(Transform, MoveBy) {
Transform transform;
transform.resize({1000, 1000});
transform.jumpTo(CameraOptions().withCenter(LatLng()).withZoom(10.0));
LatLng trueCenter = transform.getLatLng();
ASSERT_DOUBLE_EQ(0, trueCenter.latitude());
ASSERT_DOUBLE_EQ(0, trueCenter.longitude());
ASSERT_DOUBLE_EQ(10, transform.getZoom());
for (uint8_t x = 0; x < 20; ++x) {
bool odd = x % 2;
bool forward = x % 10;
LatLng coordinate = transform.screenCoordinateToLatLng({odd ? 400. : 600., forward ? 400. : 600});
transform.moveBy({odd ? 100. : -100., forward ? 100. : -100});
trueCenter = transform.getLatLng();
ASSERT_NEAR(coordinate.latitude(), trueCenter.latitude(), 1e-8);
ASSERT_NEAR(coordinate.longitude(), trueCenter.longitude(), 1e-8);
}
// We have ~1.1 precision loss for each coordinate for 20 rounds of moveBy.
ASSERT_NEAR(0.0, trueCenter.latitude(), 1.1);
ASSERT_NEAR(0.0, trueCenter.longitude(), 1.1);
}
TEST(Transform, Antimeridian) {
Transform transform;
transform.resize({1000, 1000});
transform.jumpTo(CameraOptions().withCenter(LatLng()).withZoom(1.0));
// San Francisco
const LatLng coordinateSanFrancisco{37.7833, -122.4167};
ScreenCoordinate pixelSF = transform.latLngToScreenCoordinate(coordinateSanFrancisco);
ASSERT_DOUBLE_EQ(151.79249437176432, pixelSF.x);
ASSERT_DOUBLE_EQ(383.76720782527661, pixelSF.y);
transform.jumpTo(CameraOptions().withCenter(LatLng{0.0, -181.0}));
ScreenCoordinate pixelSFLongest = transform.latLngToScreenCoordinate(coordinateSanFrancisco);
ASSERT_DOUBLE_EQ(-357.36306616412816, pixelSFLongest.x);
ASSERT_DOUBLE_EQ(pixelSF.y, pixelSFLongest.y);
LatLng unwrappedSF = coordinateSanFrancisco.wrapped();
unwrappedSF.unwrapForShortestPath(transform.getLatLng());
ScreenCoordinate pixelSFShortest = transform.latLngToScreenCoordinate(unwrappedSF);
ASSERT_DOUBLE_EQ(666.63694385219173, pixelSFShortest.x);
ASSERT_DOUBLE_EQ(pixelSF.y, pixelSFShortest.y);
transform.jumpTo(CameraOptions().withCenter(LatLng{0.0, 179.0}));
pixelSFShortest = transform.latLngToScreenCoordinate(coordinateSanFrancisco);
ASSERT_DOUBLE_EQ(pixelSFLongest.x, pixelSFShortest.x);
ASSERT_DOUBLE_EQ(pixelSFLongest.y, pixelSFShortest.y);
// Waikiri
const LatLng coordinateWaikiri{-16.9310, 179.9787};
transform.jumpTo(CameraOptions().withCenter(coordinateWaikiri).withZoom(10.0));
ScreenCoordinate pixelWaikiri = transform.latLngToScreenCoordinate(coordinateWaikiri);
ASSERT_DOUBLE_EQ(500, pixelWaikiri.x);
ASSERT_DOUBLE_EQ(500, pixelWaikiri.y);
transform.jumpTo(CameraOptions().withCenter(LatLng{coordinateWaikiri.latitude(), 180.0213}));
ScreenCoordinate pixelWaikiriLongest = transform.latLngToScreenCoordinate(coordinateWaikiri);
ASSERT_DOUBLE_EQ(524725.96438108233, pixelWaikiriLongest.x);
ASSERT_DOUBLE_EQ(pixelWaikiri.y, pixelWaikiriLongest.y);
LatLng unwrappedWaikiri = coordinateWaikiri.wrapped();
unwrappedWaikiri.unwrapForShortestPath(transform.getLatLng());
ScreenCoordinate pixelWaikiriShortest = transform.latLngToScreenCoordinate(unwrappedWaikiri);
ASSERT_DOUBLE_EQ(437.95925272648344, pixelWaikiriShortest.x);
ASSERT_DOUBLE_EQ(pixelWaikiri.y, pixelWaikiriShortest.y);
LatLng coordinateFromPixel = transform.screenCoordinateToLatLng(pixelWaikiriLongest);
ASSERT_NEAR(coordinateWaikiri.latitude(), coordinateFromPixel.latitude(), 1e-4);
ASSERT_NEAR(coordinateWaikiri.longitude(), coordinateFromPixel.longitude(), 1e-4);
transform.jumpTo(CameraOptions().withCenter(LatLng{coordinateWaikiri.latitude(), 180.0213}));
pixelWaikiriShortest = transform.latLngToScreenCoordinate(coordinateWaikiri);
ASSERT_DOUBLE_EQ(pixelWaikiriLongest.x, pixelWaikiriShortest.x);
ASSERT_DOUBLE_EQ(pixelWaikiriLongest.y, pixelWaikiriShortest.y);
coordinateFromPixel = transform.screenCoordinateToLatLng(pixelWaikiriShortest);
ASSERT_NEAR(coordinateWaikiri.latitude(), coordinateFromPixel.latitude(), 1e-4);
ASSERT_NEAR(coordinateWaikiri.longitude(), coordinateFromPixel.longitude(), 1e-4);
}
TEST(Transform, Camera) {
Transform transform;
transform.resize({1000, 1000});
const LatLng latLng1{45, 135};
CameraOptions cameraOptions1 = CameraOptions().withCenter(latLng1).withZoom(20.0);
transform.jumpTo(cameraOptions1);
ASSERT_DOUBLE_EQ(latLng1.latitude(), transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(latLng1.longitude(), transform.getLatLng().longitude());
ASSERT_DOUBLE_EQ(20, transform.getZoom());
const LatLng latLng2{-45, -135};
CameraOptions cameraOptions2 = CameraOptions().withCenter(latLng2).withZoom(10.0);
transform.jumpTo(cameraOptions2);
ASSERT_DOUBLE_EQ(latLng2.latitude(), transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(latLng2.longitude(), transform.getLatLng().longitude());
ASSERT_DOUBLE_EQ(10, transform.getZoom());
AnimationOptions easeOptions(Seconds(1));
easeOptions.transitionFrameFn = [&](double t) {
ASSERT_TRUE(t >= 0 && t <= 1);
ASSERT_GE(latLng1.latitude(), transform.getLatLng().latitude());
ASSERT_LE(latLng1.longitude(), transform.getLatLng().longitude());
};
easeOptions.transitionFinishFn = [&]() {
ASSERT_DOUBLE_EQ(latLng1.latitude(), transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(latLng1.longitude(), transform.getLatLng().longitude());
ASSERT_DOUBLE_EQ(20, transform.getZoom());
};
transform.easeTo(cameraOptions1, easeOptions);
ASSERT_TRUE(transform.inTransition());
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(250));
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(500));
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(750));
transform.updateTransitions(transform.getTransitionStart() + transform.getTransitionDuration());
ASSERT_FALSE(transform.inTransition());
AnimationOptions flyOptions(Seconds(1));
flyOptions.transitionFrameFn = [&](double t) {
ASSERT_TRUE(t >= 0 && t <= 1);
ASSERT_LE(latLng2.latitude(), transform.getLatLng().latitude());
ASSERT_GE(latLng2.longitude(), transform.getLatLng(LatLng::Unwrapped).longitude());
};
flyOptions.transitionFinishFn = [&]() {
// XXX Fix precision loss in flyTo:
// https://github.com/mapbox/mapbox-gl-native/issues/4298
ASSERT_DOUBLE_EQ(latLng2.latitude(), transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(latLng2.longitude(), transform.getLatLng().longitude());
ASSERT_NEAR(10.0, transform.getZoom(), 1e-5);
};
transform.flyTo(cameraOptions2, flyOptions);
ASSERT_TRUE(transform.inTransition());
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(250));
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(500));
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(750));
transform.updateTransitions(transform.getTransitionStart() + transform.getTransitionDuration());
ASSERT_FALSE(transform.inTransition());
// Anchor and center points are mutually exclusive.
CameraOptions camera;
camera.center = LatLng{0, 0};
camera.anchor = ScreenCoordinate{0, 0}; // top-left
camera.zoom = transform.getState().getMaxZoom();
transform.easeTo(camera, AnimationOptions(Seconds(1)));
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(250));
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(500));
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(750));
transform.updateTransitions(transform.getTransitionStart() + transform.getTransitionDuration());
ASSERT_DOUBLE_EQ(transform.getLatLng().latitude(), 0);
ASSERT_DOUBLE_EQ(transform.getLatLng().longitude(), 0);
}
TEST(Transform, ProjectionMode) {
Transform transform;
transform.setProjectionMode(ProjectionMode().withAxonometric(true).withXSkew(1.0).withYSkew(0.0));
auto options = transform.getProjectionMode();
EXPECT_TRUE(*options.axonometric);
EXPECT_EQ(*options.xSkew, 1.0);
EXPECT_EQ(*options.ySkew, 0.0);
}
TEST(Transform, IsPanning) {
Transform transform;
AnimationOptions easeOptions(Seconds(1));
easeOptions.transitionFrameFn = [&transform](double) {
ASSERT_TRUE(transform.getState().isPanning());
};
transform.resize({1000, 1000});
transform.easeTo(CameraOptions().withCenter(LatLng(0, 360.0)), easeOptions);
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(250));
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(500));
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(750));
transform.updateTransitions(transform.getTransitionStart() + transform.getTransitionDuration());
}
TEST(Transform, DefaultTransform) {
struct TransformObserver : public mbgl::TransformObserver {
void onCameraWillChange(MapObserver::CameraChangeMode) final { cameraWillChangeCallback(); };
void onCameraDidChange(MapObserver::CameraChangeMode) final { cameraDidChangeCallback(); };
std::function<void()> cameraWillChangeCallback;
std::function<void()> cameraDidChangeCallback;
};
uint32_t cameraWillChangeCount = 0;
uint32_t cameraDidChangeCount = 0;
TransformObserver observer;
observer.cameraWillChangeCallback = [&cameraWillChangeCount]() {
cameraWillChangeCount++;
};
observer.cameraDidChangeCallback = [&cameraDidChangeCount]() {
cameraDidChangeCount++;
};
Transform transform(observer);
const TransformState& state = transform.getState();
ASSERT_FALSE(state.valid());
LatLng nullIsland, latLng = {};
ScreenCoordinate center, point = {};
const uint32_t min = 0;
const uint32_t max = 65535;
// Cannot assign invalid sizes.
std::vector<Size> invalidSizes = {{}, {min, max}, {max, min}};
for (const Size& size : invalidSizes) {
try {
transform.resize(size);
ASSERT_TRUE(false) << "Should throw";
} catch (...) {
ASSERT_TRUE(size.isEmpty());
}
}
Size validSize{max, max};
ASSERT_FALSE(validSize.isEmpty());
try {
transform.resize(validSize);
ASSERT_EQ(cameraWillChangeCount, 1u);
ASSERT_EQ(cameraDidChangeCount, 1u);
} catch (...) {
ASSERT_TRUE(false) << "Should not throw";
}
ASSERT_TRUE(state.valid());
// Double resize
try {
transform.resize(validSize);
ASSERT_EQ(cameraWillChangeCount, 1u);
ASSERT_EQ(cameraDidChangeCount, 1u);
} catch (...) {
ASSERT_TRUE(false) << "Should not throw";
}
center = {max / 2., max / 2.};
latLng = state.screenCoordinateToLatLng(center);
ASSERT_NEAR(latLng.latitude(), nullIsland.latitude(), 1e-8);
ASSERT_NEAR(latLng.longitude(), nullIsland.longitude(), 1e-8);
point = state.latLngToScreenCoordinate(nullIsland);
ASSERT_DOUBLE_EQ(point.x, center.x);
ASSERT_DOUBLE_EQ(point.y, center.y);
// Constrain to screen while resizing
transform.resize({1000, 500});
transform.setLatLngBounds(LatLngBounds::hull({40.0, -10.0}, {70.0, 40.0}));
transform.setConstrainMode(ConstrainMode::Screen);
// Request impossible zoom
AnimationOptions easeOptions(Seconds(1));
transform.easeTo(CameraOptions().withCenter(LatLng{56, 11}).withZoom(1), easeOptions);
ASSERT_TRUE(transform.inTransition());
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(250));
// Rotate the screen during a transition (resize it)
transform.resize({500, 1000});
// The resize while constraining to screen should have stopped the transition and updated the state
ASSERT_FALSE(transform.inTransition());
ASSERT_NEAR(transform.getLatLng().longitude(), 8.22103, 1e-4);
ASSERT_NEAR(transform.getLatLng().latitude(), 46.6905, 1e-4);
ASSERT_NEAR(transform.getState().getScale(), 38.1529, 1e-4);
}
TEST(Transform, LatLngBounds) {
const LatLng nullIsland{};
const LatLng sanFrancisco{37.7749, -122.4194};
Transform transform;
transform.resize({1000, 1000});
transform.jumpTo(CameraOptions().withCenter(LatLng()).withZoom(transform.getState().getMaxZoom()));
// Default bounds.
ASSERT_EQ(transform.getState().getLatLngBounds(), LatLngBounds());
ASSERT_EQ(transform.getLatLng(), nullIsland);
// Invalid bounds.
try {
transform.setLatLngBounds(LatLngBounds::empty());
ASSERT_TRUE(false) << "Should throw";
} catch (...) {
ASSERT_EQ(transform.getState().getLatLngBounds(), LatLngBounds());
}
transform.jumpTo(CameraOptions().withCenter(sanFrancisco));
ASSERT_NEAR(transform.getLatLng().latitude(), sanFrancisco.latitude(), 1e-8);
ASSERT_NEAR(transform.getLatLng().longitude(), sanFrancisco.longitude(), 1e-8);
// Single location.
transform.setLatLngBounds(LatLngBounds::singleton(sanFrancisco));
ASSERT_EQ(transform.getLatLng(), sanFrancisco);
// -1 | 0 | +1
// ┌───┬───┰───┬───┰───┬───┐
// │ │ ┃• │ ┃ │ │
// ├───┼───╂───┼───╂───┼───┤
// │ │ ┃▓▓▓│▓▓▓┃ │ │
// └───┴───┸───┴───┸───┴───┘
transform.setLatLngBounds(LatLngBounds::hull({-90.0, -180.0}, {0.0, 180.0}));
transform.jumpTo(CameraOptions().withCenter(sanFrancisco));
ASSERT_EQ(transform.getLatLng().latitude(), 0.0);
ASSERT_EQ(transform.getLatLng().longitude(), sanFrancisco.longitude());
// Try crossing the antimeridian from the left.
transform.jumpTo(CameraOptions().withCenter(LatLng{0.0, -200.0}));
ASSERT_DOUBLE_EQ(transform.getLatLng().longitude(), -180.0);
// Try crossing the antimeridian from the right.
transform.jumpTo(CameraOptions().withCenter(LatLng{0.0, 200.0}));
ASSERT_DOUBLE_EQ(transform.getLatLng(LatLng::Unwrapped).longitude(), 180.0);
ASSERT_DOUBLE_EQ(transform.getLatLng().longitude(), -180.0);
// -1 | 0 | +1
// ┌───┬───┰───┬───┰───┬───┐
// │ │ ┃• │▓▓▓┃ │ │
// ├───┼───╂───┼───╂───┼───┤
// │ │ ┃ │▓▓▓┃ │ │
// └───┴───┸───┴───┸───┴───┘
transform.setLatLngBounds(LatLngBounds::hull({-90.0, 0.0}, {90.0, 180.0}));
transform.jumpTo(CameraOptions().withCenter(sanFrancisco));
ASSERT_NEAR(transform.getLatLng().latitude(), sanFrancisco.latitude(), 1e-8);
ASSERT_EQ(transform.getLatLng().longitude(), 0.0);
// -1 | 0 | +1
// ┌───┬───┰───┬───┰───┬───┐
// │ │ ┃• │ ┃ │ │
// ├───┼───╂───┼───╂───┼───┤
// │ │ ┃ │▓▓▓┃ │ │
// └───┴───┸───┴───┸───┴───┘
transform.setLatLngBounds(LatLngBounds::hull({-90.0, 0.0}, {0.0, 180.0}));
transform.jumpTo(CameraOptions().withCenter(sanFrancisco));
ASSERT_EQ(transform.getLatLng().latitude(), 0.0);
ASSERT_EQ(transform.getLatLng().longitude(), 0.0);
// -1 | 0 | +1
// ┌───┬───┰───┬───┰───┬───┐
// │ │ ┃ │ ▓┃▓ │ │
// ├───┼───╂───┼───╂───┼───┤
// │ │ ┃ │ ┃ │ │
// └───┴───┸───┴───┸───┴───┘
LatLng inside{45.0, 150.0};
transform.setLatLngBounds(LatLngBounds::hull({0.0, 120.0}, {90.0, 240.0}));
transform.jumpTo(CameraOptions().withCenter(inside));
ASSERT_EQ(transform.getLatLng().latitude(), inside.latitude());
ASSERT_EQ(transform.getLatLng().longitude(), inside.longitude());
transform.jumpTo(CameraOptions().withCenter(LatLng{0.0, 140.0}));
ASSERT_DOUBLE_EQ(transform.getLatLng().longitude(), 140.0);
transform.jumpTo(CameraOptions().withCenter(LatLng{0.0, 160.0}));
ASSERT_DOUBLE_EQ(transform.getLatLng().longitude(), 160.0);
// Constrain latitude only.
transform.jumpTo(CameraOptions().withCenter(LatLng{-45.0, inside.longitude()}));
ASSERT_EQ(transform.getLatLng().latitude(), 0.0);
ASSERT_EQ(transform.getLatLng().longitude(), inside.longitude());
// Crossing the antimeridian, within bounds.
transform.jumpTo(CameraOptions().withCenter(LatLng{inside.latitude(), 181.0}));
ASSERT_EQ(transform.getLatLng().longitude(), -179.0);
// Crossing the antimeridian, outside bounds.
transform.jumpTo(CameraOptions().withCenter(inside));
transform.jumpTo(CameraOptions().withCenter(LatLng{inside.latitude(), 250.0}));
ASSERT_DOUBLE_EQ(transform.getLatLng().longitude(), -120.0);
// Constrain to the left edge.
transform.jumpTo(CameraOptions().withCenter(LatLng{inside.latitude(), 119.0}));
ASSERT_DOUBLE_EQ(transform.getLatLng().longitude(), 120.0);
// Simulate swipe to the left.
mbgl::AnimationOptions easeOptions(mbgl::Seconds(1));
easeOptions.transitionFrameFn = [&](double /* t */) {
ASSERT_NEAR(transform.getLatLng().longitude(), 120.0, 1e-4);
};
easeOptions.transitionFinishFn = [&]() {
ASSERT_NEAR(transform.getLatLng().longitude(), 120.0, 1e-4);
};
transform.moveBy(ScreenCoordinate{-500, -500}, easeOptions);
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(0));
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(250));
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(500));
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(750));
transform.updateTransitions(transform.getTransitionStart() + transform.getTransitionDuration());
// Constrain to the right edge.
transform.jumpTo(CameraOptions().withCenter(LatLng{inside.latitude(), 241.0}));
ASSERT_DOUBLE_EQ(transform.getLatLng().longitude(), -120.0);
// Simulate swipe to the right.
easeOptions.transitionFrameFn = [&](double /* t */) {
ASSERT_NEAR(transform.getLatLng().longitude(), -120.0, 1e-4);
};
easeOptions.transitionFinishFn = [&]() {
ASSERT_NEAR(transform.getLatLng().longitude(), -120.0, 1e-4);
};
transform.moveBy(ScreenCoordinate{500, 500}, easeOptions);
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(0));
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(250));
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(500));
transform.updateTransitions(transform.getTransitionStart() + Milliseconds(750));
transform.updateTransitions(transform.getTransitionStart() + transform.getTransitionDuration());
// -1 | 0 | +1
// ┌───┬───┰───┬───┰───┬───┐
// │ │ ┃ │ ┃ │ │
// ├───┼───╂───┼───╂───┼───┤
// │ │ ▓┃▓ │ ┃ │ │
// └───┴───┸───┴───┸───┴───┘
inside = LatLng{-45.0, -150.0};
transform.setLatLngBounds(LatLngBounds::hull({-90.0, -240.0}, {0.0, -120.0}));
transform.jumpTo(CameraOptions().withCenter(inside));
ASSERT_DOUBLE_EQ(transform.getLatLng().latitude(), inside.latitude());
ASSERT_EQ(transform.getLatLng().longitude(), inside.longitude());
transform.jumpTo(CameraOptions().withCenter(LatLng{0.0, -140.0}));
ASSERT_DOUBLE_EQ(transform.getLatLng().longitude(), -140.0);
transform.jumpTo(CameraOptions().withCenter(LatLng{0.0, -160.0}));
ASSERT_DOUBLE_EQ(transform.getLatLng().longitude(), -160.0);
// Constrain latitude only.
transform.jumpTo(CameraOptions().withCenter(LatLng{45.0, inside.longitude()}));
ASSERT_EQ(transform.getLatLng().latitude(), 0.0);
ASSERT_EQ(transform.getLatLng().longitude(), inside.longitude());
// Crossing the antimeridian, within bounds.
transform.jumpTo(CameraOptions().withCenter(LatLng{inside.latitude(), -181.0}));
ASSERT_DOUBLE_EQ(transform.getLatLng().latitude(), inside.latitude());
ASSERT_EQ(transform.getLatLng().longitude(), 179.0);
// Crossing the antimeridian, outside bounds.
transform.jumpTo(CameraOptions().withCenter(inside));
transform.jumpTo(CameraOptions().withCenter(LatLng{inside.latitude(), -250.0}));
ASSERT_DOUBLE_EQ(transform.getLatLng().longitude(), 120.0);
// Constrain to the left edge.
transform.jumpTo(CameraOptions().withCenter(LatLng{inside.latitude(), -119.0}));
ASSERT_DOUBLE_EQ(transform.getLatLng().longitude(), -120.0);
transform.moveBy(ScreenCoordinate{-500, 0});
ASSERT_DOUBLE_EQ(transform.getLatLng().longitude(), -120.0);
// Constrain to the right edge.
transform.jumpTo(CameraOptions().withCenter(LatLng{inside.latitude(), -241.0}));
ASSERT_DOUBLE_EQ(transform.getLatLng().longitude(), 120.0);
transform.moveBy(ScreenCoordinate{500, 0});
ASSERT_DOUBLE_EQ(transform.getLatLng().longitude(), 120.0);
}
TEST(Transform, ConstrainScreenToBounds) {
Transform transform;
transform.resize({500, 500});
transform.setLatLngBounds(LatLngBounds::hull({40.0, -10.0}, {70.0, 40.0}));
transform.setConstrainMode(ConstrainMode::Screen);
// Request impossible zoom
transform.easeTo(CameraOptions().withCenter(LatLng{56, 11}).withZoom(1));
ASSERT_NEAR(transform.getZoom(), 2.81378, 1e-4);
// Request impossible center left
transform.easeTo(CameraOptions().withCenter(LatLng{56, -65}).withZoom(4));
ASSERT_NEAR(transform.getLatLng().longitude(), 0.98632, 1e-4);
ASSERT_NEAR(transform.getLatLng().latitude(), 56.0, 1e-4);
// Request impossible center top
transform.easeTo(CameraOptions().withCenter(LatLng{80, 11}).withZoom(4));
ASSERT_NEAR(transform.getLatLng().longitude(), 11.0, 1e-4);
ASSERT_NEAR(transform.getLatLng().latitude(), 65.88603, 1e-4);
// Request impossible center right
transform.easeTo(CameraOptions().withCenter(LatLng{56, 50}).withZoom(4));
ASSERT_NEAR(transform.getLatLng().longitude(), 29.01367, 1e-4);
ASSERT_NEAR(transform.getLatLng().latitude(), 56.0, 1e-4);
// Request impossible center bottom
transform.easeTo(CameraOptions().withCenter(LatLng{30, 11}).withZoom(4));
ASSERT_NEAR(transform.getLatLng().longitude(), 11.0, 1e-4);
ASSERT_NEAR(transform.getLatLng().latitude(), 47.89217, 1e-4);
// Request impossible center with anchor
transform.easeTo(CameraOptions().withAnchor(ScreenCoordinate{250, 250}).withCenter(LatLng{56, -65}).withZoom(4));
ASSERT_NEAR(transform.getLatLng().longitude(), 0.98632, 1e-4);
ASSERT_NEAR(transform.getLatLng().latitude(), 56.0, 1e-4);
// Request impossible center (anchor)
transform.easeTo(CameraOptions().withAnchor(ScreenCoordinate{250, 250}).withZoom(4));
ASSERT_NEAR(transform.getLatLng().longitude(), 0.98632, 1e-4);
ASSERT_NEAR(transform.getLatLng().latitude(), 56.0, 1e-4);
// Fly to impossible center
transform.flyTo(CameraOptions().withCenter(LatLng{56, -65}).withZoom(4));
ASSERT_NEAR(transform.getZoom(), 4.0, 1e-4);
ASSERT_NEAR(transform.getLatLng().longitude(), 0.98632, 1e-4);
ASSERT_NEAR(transform.getLatLng().latitude(), 56.0, 1e-4);
// Fly to impossible center and zoom
transform.flyTo(CameraOptions().withCenter(LatLng{56, -65}).withZoom(2));
ASSERT_NEAR(transform.getZoom(), 4.0, 1e-4);
ASSERT_NEAR(transform.getLatLng().longitude(), 0.98632, 1e-4);
ASSERT_NEAR(transform.getLatLng().latitude(), 56.0, 1e-4);
}
TEST(Transform, InvalidPitch) {
Transform transform;
transform.resize({1, 1});
ASSERT_DOUBLE_EQ(0, transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(0, transform.getLatLng().longitude());
ASSERT_DOUBLE_EQ(0, transform.getZoom());
ASSERT_DOUBLE_EQ(0, transform.getPitch());
transform.jumpTo(CameraOptions().withZoom(1.0).withPitch(45));
ASSERT_DOUBLE_EQ(1, transform.getZoom());
ASSERT_DOUBLE_EQ(util::deg2rad(45), transform.getPitch());
const double invalid = NAN;
transform.jumpTo(CameraOptions().withPitch(invalid));
ASSERT_DOUBLE_EQ(util::deg2rad(45), transform.getPitch());
transform.jumpTo(CameraOptions().withPitch(60));
ASSERT_DOUBLE_EQ(util::deg2rad(60), transform.getPitch());
}
TEST(Transform, MinMaxPitch) {
Transform transform;
transform.resize({1, 1});
ASSERT_DOUBLE_EQ(0, transform.getLatLng().latitude());
ASSERT_DOUBLE_EQ(0, transform.getLatLng().longitude());
ASSERT_DOUBLE_EQ(0, transform.getZoom());
ASSERT_DOUBLE_EQ(0, transform.getPitch());
transform.jumpTo(CameraOptions().withZoom(1.0).withPitch(60));
ASSERT_DOUBLE_EQ(1, transform.getZoom());
ASSERT_DOUBLE_EQ(transform.getState().getMaxPitch(), transform.getPitch());
ASSERT_DOUBLE_EQ(util::deg2rad(60), transform.getPitch());
transform.setMaxPitch(70);
transform.jumpTo(CameraOptions().withPitch(70));
ASSERT_DOUBLE_EQ(transform.getState().getMaxPitch(), transform.getPitch());
ASSERT_DOUBLE_EQ(util::deg2rad(60), transform.getPitch());
transform.setMaxPitch(45);
transform.jumpTo(CameraOptions().withPitch(60));
ASSERT_DOUBLE_EQ(transform.getState().getMaxPitch(), transform.getPitch());
ASSERT_DOUBLE_EQ(util::deg2rad(45), transform.getPitch());
transform.jumpTo(CameraOptions().withPitch(0));
ASSERT_DOUBLE_EQ(transform.getState().getMinPitch(), transform.getPitch());
ASSERT_DOUBLE_EQ(0, transform.getPitch());
transform.setMinPitch(-10);
transform.jumpTo(CameraOptions().withPitch(-10));
ASSERT_DOUBLE_EQ(transform.getState().getMinPitch(), transform.getPitch());
ASSERT_DOUBLE_EQ(0, transform.getPitch());
transform.setMinPitch(15);
transform.jumpTo(CameraOptions().withPitch(0));
ASSERT_DOUBLE_EQ(transform.getState().getMinPitch(), transform.getPitch());
ASSERT_DOUBLE_EQ(util::deg2rad(15), transform.getPitch());
transform.setMinPitch(45);
ASSERT_DOUBLE_EQ(util::deg2rad(45), transform.getState().getMinPitch());
transform.setMaxPitch(45);
ASSERT_DOUBLE_EQ(util::deg2rad(45), transform.getState().getMaxPitch());
transform.setMaxPitch(10);
ASSERT_DOUBLE_EQ(util::deg2rad(45), transform.getState().getMaxPitch());
transform.setMinPitch(60);
ASSERT_DOUBLE_EQ(util::deg2rad(45), transform.getState().getMinPitch());
}
static const double abs_double_error = 1e-5;
MATCHER_P(Vec3NearEquals1E5, vec, "") {
return std::fabs(vec[0] - arg[0]) <= abs_double_error && std::fabs(vec[1] - arg[1]) <= abs_double_error &&
std::fabs(vec[2] - arg[2]) <= abs_double_error;
}
TEST(Transform, FreeCameraOptionsInvalidSize) {
Transform transform;
FreeCameraOptions options;
options.orientation = vec4{{1.0, 1.0, 1.0, 1.0}};
options.position = vec3{{0.1, 0.2, 0.3}};
transform.setFreeCameraOptions(options);
const auto updatedOrientation = transform.getFreeCameraOptions().orientation.value();
const auto updatedPosition = transform.getFreeCameraOptions().position.value();
EXPECT_DOUBLE_EQ(0.0, updatedOrientation[0]);
EXPECT_DOUBLE_EQ(0.0, updatedOrientation[1]);
EXPECT_DOUBLE_EQ(0.0, updatedOrientation[2]);
EXPECT_DOUBLE_EQ(1.0, updatedOrientation[3]);
EXPECT_THAT(updatedPosition, Vec3NearEquals1E5(vec3{{0.0, 0.0, 0.0}}));
}
TEST(Transform, FreeCameraOptionsNanInput) {
Transform transform;
transform.resize({100, 100});
FreeCameraOptions options;
options.position = vec3{{0.5, 0.5, 0.25}};
transform.setFreeCameraOptions(options);
options.position = vec3{{0.0, 0.0, NAN}};
transform.setFreeCameraOptions(options);
EXPECT_EQ((vec3{{0.5, 0.5, 0.25}}), transform.getFreeCameraOptions().position.value());
// Only the invalid parameter should be discarded
options.position = vec3{{0.3, 0.1, 0.2}};
options.orientation = vec4{{NAN, 0.0, NAN, 0.0}};
transform.setFreeCameraOptions(options);
EXPECT_THAT(transform.getFreeCameraOptions().position.value(), Vec3NearEquals1E5(vec3{{0.3, 0.1, 0.2}}));
EXPECT_EQ(Quaternion::identity.m, transform.getFreeCameraOptions().orientation.value());
}
TEST(Transform, FreeCameraOptionsInvalidZ) {
Transform transform;
transform.resize({100, 100});
FreeCameraOptions options;
// Invalid z-value (<= 0.0 || > 1) should be clamped to respect both min&max zoom values
options.position = vec3{{0.1, 0.1, 0.0}};
transform.setFreeCameraOptions(options);
EXPECT_DOUBLE_EQ(transform.getState().getMaxZoom(), transform.getState().getZoom());
EXPECT_GT(transform.getFreeCameraOptions().position.value()[2], 0.0);
options.position = vec3{{0.5, 0.2, 123.456}};
transform.setFreeCameraOptions(options);
EXPECT_DOUBLE_EQ(transform.getState().getMinZoom(), transform.getState().getZoom());
EXPECT_LE(transform.getFreeCameraOptions().position.value()[2], 1.0);
}
TEST(Transform, FreeCameraOptionsInvalidOrientation) {
// Invalid orientations that cannot be clamped into a valid range
Transform transform;
transform.resize({100, 100});
FreeCameraOptions options;
options.orientation = vec4{{0.0, 0.0, 0.0, 0.0}};
transform.setFreeCameraOptions(options);
EXPECT_EQ(Quaternion::identity.m, transform.getFreeCameraOptions().orientation);
// Gimbal lock. Both forward and up vectors are on xy-plane
options.orientation = Quaternion::fromAxisAngle(vec3{{0.0, 1.0, 0.0}}, pi / 2).m;
transform.setFreeCameraOptions(options);
EXPECT_EQ(Quaternion::identity.m, transform.getFreeCameraOptions().orientation);
// Camera is upside down
options.orientation = Quaternion::fromAxisAngle(vec3{{1.0, 0.0, 0.0}}, pi / 2 + pi / 4).m;
transform.setFreeCameraOptions(options);
EXPECT_EQ(Quaternion::identity.m, transform.getFreeCameraOptions().orientation);
}
TEST(Transform, FreeCameraOptionsSetOrientation) {
Transform transform;
transform.resize({100, 100});
FreeCameraOptions options;
options.orientation = Quaternion::identity.m;
transform.setFreeCameraOptions(options);
EXPECT_DOUBLE_EQ(0.0, transform.getState().getBearing());
EXPECT_DOUBLE_EQ(0.0, transform.getState().getPitch());
EXPECT_DOUBLE_EQ(0.0, transform.getState().getX());
EXPECT_DOUBLE_EQ(0.0, transform.getState().getY());
options.orientation = Quaternion::fromAxisAngle(vec3{{1.0, 0.0, 0.0}}, util::deg2rad(-60.0)).m;
transform.setFreeCameraOptions(options);
EXPECT_DOUBLE_EQ(0.0, transform.getState().getBearing());
EXPECT_DOUBLE_EQ(util::deg2rad(60.0), transform.getState().getPitch());
EXPECT_DOUBLE_EQ(0.0, transform.getState().getX());
EXPECT_DOUBLE_EQ(206.0, transform.getState().getY());
options.orientation = Quaternion::fromAxisAngle(vec3{{0.0, 0.0, 1.0}}, util::deg2rad(56.0)).m;
transform.setFreeCameraOptions(options);
EXPECT_DOUBLE_EQ(util::deg2rad(-56.0), transform.getState().getBearing());
EXPECT_DOUBLE_EQ(0.0, transform.getState().getPitch());
EXPECT_DOUBLE_EQ(0.0, transform.getState().getX());
EXPECT_NEAR(152.192378, transform.getState().getY(), 1e-6);
options.orientation = Quaternion::fromEulerAngles(0.0, 0.0, util::deg2rad(-179.0))
.multiply(Quaternion::fromEulerAngles(util::deg2rad(-30.0), 0.0, 0.0))
.m;
transform.setFreeCameraOptions(options);
EXPECT_DOUBLE_EQ(util::deg2rad(179.0), transform.getState().getBearing());
EXPECT_DOUBLE_EQ(util::deg2rad(30.0), transform.getState().getPitch());
EXPECT_NEAR(1.308930, transform.getState().getX(), 1e-6);
EXPECT_NEAR(56.813889, transform.getState().getY(), 1e-6);
}
static std::tuple<vec3, vec3, vec3> rotatedFrame(const std::array<double, 4>& quaternion) {
Quaternion q(quaternion);
return std::make_tuple(
q.transform({{1.0, 0.0, 0.0}}), q.transform({{0.0, -1.0, 0.0}}), q.transform({{0.0, 0.0, -1.0}}));
}
TEST(Transform, FreeCameraOptionsClampPitch) {
Transform transform;
transform.resize({100, 100});
FreeCameraOptions options;
vec3 right, up, forward;
options.orientation = Quaternion::fromAxisAngle(vec3{{1.0, 0.0, 0.0}}, util::deg2rad(-85.0)).m;
transform.setFreeCameraOptions(options);
EXPECT_DOUBLE_EQ(util::PITCH_MAX, transform.getState().getPitch());
std::tie(right, up, forward) = rotatedFrame(transform.getFreeCameraOptions().orientation.value());
EXPECT_THAT(right, Vec3NearEquals1E5(vec3{{1.0, 0.0, 0.0}}));
EXPECT_THAT(up, Vec3NearEquals1E5(vec3{{0, -0.5, 0.866025}}));
EXPECT_THAT(forward, Vec3NearEquals1E5(vec3{{0, -0.866025, -0.5}}));
}
TEST(Transform, FreeCameraOptionsClampToBounds) {
Transform transform;
transform.resize({100, 100});
transform.setConstrainMode(ConstrainMode::WidthAndHeight);
transform.jumpTo(CameraOptions().withZoom(8.56));
FreeCameraOptions options;
// Place camera to an arbitrary position looking away from the map
options.position = vec3{{-100.0, -10000.0, 1000.0}};
options.orientation = Quaternion::fromEulerAngles(util::deg2rad(-45.0), 0.0, 0.0).m;
transform.setFreeCameraOptions(options);
// Map center should be clamped to width/2 pixels away from map borders
EXPECT_DOUBLE_EQ(206.0, transform.getState().getX());
EXPECT_DOUBLE_EQ(206.0, transform.getState().getY());
EXPECT_DOUBLE_EQ(0.0, transform.getState().getBearing());
EXPECT_DOUBLE_EQ(util::deg2rad(45.0), transform.getState().getPitch());
vec3 right, up, forward;
std::tie(right, up, forward) = rotatedFrame(transform.getFreeCameraOptions().orientation.value());
EXPECT_THAT(transform.getFreeCameraOptions().position.value(),
Vec3NearEquals1E5(vec3{{0.0976562, 0.304816, 0.20716}}));
EXPECT_THAT(right, Vec3NearEquals1E5(vec3{{1.0, 0.0, 0.0}}));
EXPECT_THAT(up, Vec3NearEquals1E5(vec3{{0, -0.707107, 0.707107}}));
EXPECT_THAT(forward, Vec3NearEquals1E5(vec3{{0, -0.707107, -0.707107}}));
}
TEST(Transform, FreeCameraOptionsInvalidState) {
Transform transform;
// Invalid size
EXPECT_DOUBLE_EQ(0.0, transform.getState().getX());
EXPECT_DOUBLE_EQ(0.0, transform.getState().getY());
EXPECT_DOUBLE_EQ(0.0, transform.getState().getBearing());
EXPECT_DOUBLE_EQ(0.0, transform.getState().getPitch());
const auto options = transform.getFreeCameraOptions();
EXPECT_THAT(options.position.value(), Vec3NearEquals1E5(vec3{{0.0, 0.0, 0.0}}));
}
TEST(Transform, FreeCameraOptionsOrientationRoll) {
Transform transform;
FreeCameraOptions options;
transform.resize({100, 100});
const auto orientationWithoutRoll = Quaternion::fromEulerAngles(-pi / 4, 0.0, 0.0);
const auto orientationWithRoll = orientationWithoutRoll.multiply(Quaternion::fromEulerAngles(0.0, 0.0, pi / 4));
options.orientation = orientationWithRoll.m;
transform.setFreeCameraOptions(options);
options = transform.getFreeCameraOptions();
EXPECT_NEAR(options.orientation.value()[0], orientationWithoutRoll.x, 1e-9);
EXPECT_NEAR(options.orientation.value()[1], orientationWithoutRoll.y, 1e-9);
EXPECT_NEAR(options.orientation.value()[2], orientationWithoutRoll.z, 1e-9);
EXPECT_NEAR(options.orientation.value()[3], orientationWithoutRoll.w, 1e-9);
EXPECT_NEAR(util::deg2rad(45.0), transform.getState().getPitch(), 1e-9);
EXPECT_NEAR(0.0, transform.getState().getBearing(), 1e-9);
EXPECT_NEAR(0.0, transform.getState().getX(), 1e-9);
EXPECT_NEAR(150.0, transform.getState().getY(), 1e-9);
}
TEST(Transform, FreeCameraOptionsStateSynchronization) {
Transform transform;
transform.resize({100, 100});
vec3 right, up, forward;
transform.jumpTo(CameraOptions().withPitch(0.0).withBearing(0.0));
std::tie(right, up, forward) = rotatedFrame(transform.getFreeCameraOptions().orientation.value());
EXPECT_THAT(transform.getFreeCameraOptions().position.value(), Vec3NearEquals1E5(vec3{{0.5, 0.5, 0.29296875}}));
EXPECT_THAT(right, Vec3NearEquals1E5(vec3{{1.0, 0.0, 0.0}}));
EXPECT_THAT(up, Vec3NearEquals1E5(vec3{{0.0, -1.0, 0.0}}));
EXPECT_THAT(forward, Vec3NearEquals1E5(vec3{{0.0, 0.0, -1.0}}));
transform.jumpTo(CameraOptions().withCenter(LatLng{60.1699, 24.9384}));
EXPECT_THAT(transform.getFreeCameraOptions().position.value(),
Vec3NearEquals1E5(vec3{{0.569273, 0.289453, 0.292969}}));
transform.jumpTo(CameraOptions().withPitch(20.0).withBearing(77.0).withCenter(LatLng{-20.0, 20.0}));
EXPECT_THAT(transform.getFreeCameraOptions().position.value(),
Vec3NearEquals1E5(vec3{{0.457922, 0.57926, 0.275301}}));
// Invalid pitch
transform.jumpTo(CameraOptions().withPitch(-10.0).withBearing(0.0));
std::tie(right, up, forward) = rotatedFrame(transform.getFreeCameraOptions().orientation.value());
EXPECT_THAT(transform.getFreeCameraOptions().position.value(),
Vec3NearEquals1E5(vec3{{0.555556, 0.556719, 0.292969}}));
EXPECT_THAT(right, Vec3NearEquals1E5(vec3{{1.0, 0.0, 0.0}}));
EXPECT_THAT(up, Vec3NearEquals1E5(vec3{{0.0, -1.0, 0.0}}));
EXPECT_THAT(forward, Vec3NearEquals1E5(vec3{{0.0, 0.0, -1.0}}));
transform.jumpTo(CameraOptions().withPitch(85.0).withBearing(0.0).withCenter(LatLng{-80.0, 0.0}));
std::tie(right, up, forward) = rotatedFrame(transform.getFreeCameraOptions().orientation.value());
EXPECT_THAT(transform.getFreeCameraOptions().position.value(), Vec3NearEquals1E5(vec3{{0.5, 1.14146, 0.146484}}));
EXPECT_THAT(right, Vec3NearEquals1E5(vec3{{1.0, 0.0, 0.0}}));
EXPECT_THAT(up, Vec3NearEquals1E5(vec3{{0, -0.5, 0.866025}}));
EXPECT_THAT(forward, Vec3NearEquals1E5(vec3{{0, -0.866025, -0.5}}));
}
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