[Freeciv-Dev] Re: (PR#4679) double-tiles

["Rafa³ Bursig" <bursig@xxxxxxxxx>]

Dnia 2003.07.25 07:35, Jason Short napisa³(a):
> 
> When a tile appears twice on the mapview, it will only be drawn in 
> one place.  What gets drawn in the other place?  Nothing...which 
> means the other tile is basically not refreshed and can get cluttered 
> with stuff like city names, etc.
> 
> The attached patch clears the mapview window before redrawing it.
> 
> As a side note, we could speed up the full-screen refresh by, in
> addition to clearing the window before we start to draw tiles, also
> simply skipping black (unreal/unknown) tiles.  We can do this since
> they're already drawn black.  But we could only do it in
> update_map_canvas_visible, not in refresh_tile_mapcanvas.
> 
This isn't true becouse you only win when have lot of unreal/unknown 
terrains (at start) but later it only much slow down drawing (depend of 
screen resolution).

Rafal