Zoom levels and view mode

Are the zoom levels managed by the drawer?

I’ve drawn a village and I’m not able to see it on the browser using view mode, but I can see it when changing to edit mode
If the zoom level is moved down the village may appear at levels like 12 or 11
If the zoom level goes down to 10 or lower than every thing dissapear

If we look to other cities surounding this one which are just a point on the map (no streets) they keep on the map even the zoom level was moved down to 9

The same problem happens to the highways I drove (RP 30 and RP 40) to reach the village which have the same category as others on the map

Can someone tell me what’s wrong on it?

With Mapnik, not all zoom levels are updated / rendered at the same time. So recent edits can show on some zoom levels but not others.
But they will all be updated soon, probably within a few hours. So just wait a while and your edits will appear on all zooms.

Its also possible that you are looking at a cached copy of the tiles, worth trying a shift+refresh in your browser.
Also, if you don’t want to wait you can mark tiles as “dirty”, which will cause them to be rerendered. To do this, add /dirty to the end of the tile URL.
See this page for details: http://wiki.openstreetmap.org/wiki/Slippy_Map#Mapnik_tile_rendering

You can also use the export if you want to see the updated map.

Sorry to be dumb but is the tile url the url for the page one is changing in Edit mode or can it also be done in the view mode?

Its done in view mode. Right click on the tile you want updated on the map, and choose something like “View image” (this will depend on what browser you are using).
That will show you just that tile, in the address bar it will have a URL something like http://b.tile.openstreetmap.org/15/16200/10710.png
So you have to add /dirty to the end of that, eg http://b.tile.openstreetmap.org/15/16200/10710.png/dirty Then press enter, and it will say “Tile submitted for rendering”.

Thanks - I’m learning!