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Use LatLongToScreenCoordinate from maplibre utility in DrawItem

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This commit is contained in:
Dan Paulat 2023-08-19 22:53:18 -05:00
parent 565734217b
commit e3c6850a1e
1 changed files with 2 additions and 18 deletions
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20
scwx-qt/source/scwx/qt/gl/draw/draw_item.cpp
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@ -1,4 +1,5 @@
#include <scwx/qt/gl/draw/draw_item.hpp>
#include <scwx/qt/util/maplibre.hpp>
#include <string>
@ -82,23 +83,6 @@ void DrawItem::UseRotationProjection(
uMVPMatrixLocation, 1, GL_FALSE, glm::value_ptr(projection));
}
// TODO: Refactor to utility class
static glm::vec2
LatLongToScreenCoordinate(const QMapLibreGL::Coordinate& coordinate)
{
static constexpr double RAD2DEG_D = 180.0 / M_PI;
double latitude = std::clamp(
coordinate.first, -mbgl::util::LATITUDE_MAX, mbgl::util::LATITUDE_MAX);
glm::vec2 screen {
mbgl::util::LONGITUDE_MAX + coordinate.second,
-(mbgl::util::LONGITUDE_MAX -
RAD2DEG_D *
std::log(std::tan(M_PI / 4.0 +
latitude * M_PI / mbgl::util::DEGREES_MAX)))};
return screen;
}
void DrawItem::UseMapProjection(
const QMapLibreGL::CustomLayerRenderParameters& params,
GLint uMVPMatrixLocation,
@ -120,7 +104,7 @@ void DrawItem::UseMapProjection(
gl.glUniform2fv(uMapScreenCoordLocation,
1,
glm::value_ptr(LatLongToScreenCoordinate(
glm::value_ptr(util::maplibre::LatLongToScreenCoordinate(
{params.latitude, params.longitude})));
gl.glUniformMatrix4fv(