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[core] Consolidated zoom and angle anchor logic

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Made anchor a CameraOption for easeTo().
This commit is contained in:
Minh Nguyễn
2016-01-13 00:47:50 -08:00
committed by Minh Nguyễn
parent a3d4aeefec
commit 8bad15bf87
6 changed files with 90 additions and 35 deletions
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25
test/miscellaneous/transform.cpp
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@@ -177,3 +177,28 @@ TEST(Transform, ConstrainWidthAndHeight) {
ASSERT_NEAR(85.021422866378742, loc.latitude, 0.0001);
ASSERT_NEAR(179.65667724609358, std::abs(loc.longitude), 0.0001);
}
TEST(Transform, Anchor) {
MockView view;
Transform transform(view, ConstrainMode::HeightOnly);
ASSERT_DOUBLE_EQ(0, transform.getLatLng().latitude);
ASSERT_DOUBLE_EQ(0, transform.getLatLng().longitude);
ASSERT_DOUBLE_EQ(1, transform.getScale());
transform.setLatLngZoom({ 10, -100 }, 10);
ASSERT_DOUBLE_EQ(10, transform.getLatLng().latitude);
ASSERT_DOUBLE_EQ(-100, transform.getLatLng().longitude);
ASSERT_DOUBLE_EQ(10, transform.getZoom());
ASSERT_DOUBLE_EQ(0, transform.getAngle());
const auto size = view.getSize();
const PrecisionPoint anchorPoint = { size[0] * 0.8, size[1] * 0.3 };
const LatLng anchorLatLng = transform.getState().pointToLatLng(anchorPoint);
transform.setAngle(M_PI_4, anchorPoint);
ASSERT_NEAR(M_PI_4, transform.getAngle(), 0.000001);
ASSERT_NE(anchorLatLng, transform.getLatLng());
ASSERT_DOUBLE_EQ(anchorLatLng, transform.getState().pointToLatLng(anchorPoint));
}