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Render map with a copy of TransformState

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This commit is contained in:
John Firebaugh
2014-10-21 15:00:44 -07:00
parent 4f7bc80664
commit da8aa391d0
12 changed files with 248 additions and 233 deletions
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11
src/map/transform.cpp
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@@ -13,13 +13,13 @@
using namespace mbgl;
const double D2R = M_PI / 180.0;
const double R2D = 180.0 / M_PI;
const double M2PI = 2 * M_PI;
const double MIN_ROTATE_SCALE = 8;
Transform::Transform(View &view_) : view(view_), mtx(std::make_unique<uv::rwlock>()) {
setScale(current.scale);
setAngle(current.angle);
Transform::Transform(View &view_)
: view(view_)
, mtx(std::make_unique<uv::rwlock>())
{
}
#pragma mark - Map View
@@ -123,8 +123,7 @@ void Transform::setLonLatZoom(const double lon, const double lat, const double z
void Transform::getLonLat(double &lon, double &lat) const {
uv::readlock lock(mtx);
lon = -final.x / Bc;
lat = R2D * (2 * std::atan(std::exp(final.y / Cc)) - 0.5 * M_PI);
final.getLonLat(lon, lat);
}
void Transform::getLonLatZoom(double &lon, double &lat, double &zoom) const {