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Mercator projection

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This commit is contained in:
Erwin Ried 2020-05-02 13:01:23 +02:00
parent 9e5eebae39
commit 018bbdc190
1 changed files with 4 additions and 4 deletions
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6
firmware/application/ui/ui_geomap.cpp
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@ -191,9 +191,9 @@ void GeoMap::move(const float lon, const float lat) {
Rect map_rect = screen_rect();
// Map is in Equidistant "Plate Carrée" projection
x_pos = map_center_x - (map_rect.width() / 2) + (lon_ / lon_ratio);
y_pos = map_center_y - (map_rect.height() / 2) + (lat_ / lat_ratio) + 16;
// Using WGS 84/Pseudo-Mercator projection
x_pos = map_width * (lon_+180)/360 - (map_rect.width() / 2);
y_pos = (0.5-lat_/(340.1206913+-4.21807e-5*pow((double)abs(lat_),3.4198394))) * map_height-(map_rect.height() / 2);
// Cap position
if (x_pos > (map_width - map_rect.width()))