Garmin IMG maps - cyrillic labels are not rendered correctly

Hello,

this is to report a bug - cyriliic labels are not rendered correctly on Garmin IMG maps.
Garbage symbols are seen instead.

This can be seen in te recent - 4.8.61 version.

A side question - vector rendering into raster tiles seems to be particularly slow on a 10" large-screen Android device - this is while panning and zooming.
I've read somewhere that all garmin tools - mapsource, probably GPS hardware also - use a special kind of projection, called "plate carre" (a kind of Equirectangular projection). It's mathematical simplicity makes it particularly suitable for fast coordinate-to-screen kind of transformations for vector objects. Does OruxMaps use this kind of speedup-hacks or not?

Regards,
Dido.

dido wrote:Hello,

this is to report a bug - cyriliic labels are not rendered correctly on Garmin IMG maps.
Garbage symbols are seen instead.

This can be seen in te recent - 4.8.61 version.

A side question - vector rendering into raster tiles seems to be particularly slow on a 10" large-screen Android device - this is while panning and zooming.
I've read somewhere that all garmin tools - mapsource, probably GPS hardware also - use a special kind of projection, called "plate carre" (a kind of Equirectangular projection). It's mathematical simplicity makes it particularly suitable for fast coordinate-to-screen kind of transformations for vector objects. Does OruxMaps use this kind of speedup-hacks or not?

Regards,
Dido.

Hi, thanks;

if you have an example for me, I can test the problem with the fonts.

yes, OruxMaps uses the garmin projection. The problem is in the millions of calculations to be done to draw the various lines. Java is very inefficient in this function.

orux

Hello orux,

here you can download a small example - several map sheets in cyrillic + a larger overlay with some height contours.
There you can find another problem - the height contrours are not always drawn correctly, but appear broken in the rendered tiles.

http://mountain.bajhui.org/pictures/GMAPSUPP.IMG

Regards,
dido.