[Feature : 2D Map] Render tracks in a background thread

[wolfgang-ch]

What is missing ?

tbd

[wolfgang-ch]

After a lot of searching, I found a simple renderer for OSM data, https://github.com/pmlopes/simple-osm-render which looks promising.

The code is very old but finally I could sucessfully run it and it produced these tiles

When combining them manually, it looks very good

[FJBDev]

That looks very promising indeed, a nice refresh for the MT 2D Map !! 😄

[wolfgang-ch]

After more testing, this tile renderer do not work a I hoped. When increasing the width of a road, the clipping issue at a tile border is visible.

The left side of the image is when the full map is rendered, the right side is when tiles are rendered and afterwards manually glued together

https://github.com/pmlopes/simple-osm-render/issues/2

[wolfgang-ch]

Now I'm going with plan B:

• Use the same tour basics painting as before but run it in a background thread
• Disable advanced tour painting but may be improve the tile clipping of tours afterwards, the above algorithm also has tile clipping for roads/tours

These will be the advantages compared with now

• The UI is more reponsive
• Tours are displayed with less delay by using all CPU threads for rendering
• Tours will have full antialiasing because of using AWT like the map point labels and locations