[OSM-dev] Proposal for new tiles at home lowzoom method

[Milenko]

The section you have done so far looks great to me.  Seems to have the perfect amount of detail at the two levels that are rendered.  I don't see any tiles at zoom 9 or 8, I guess you haven't rendered them yet.

I think the transparent layer had something to do with IE not correctly displaying transparent .svg - although that could have been from something different as I tried the link in IE7 and it worked fine.  Maybe it was earlier versions of IE?

-Jeremy
  ----- Original Message ----- 
  From: 80n 
  To: OSM-Dev Openstreetmap 
  Sent: Tuesday, January 08, 2008 7:39 AM
  Subject: [OSM-dev] Proposal for new tiles at home lowzoom method


  Folks
  I've been experimenting with a different method of generating lowzoom tiles for tiles at home.

  The approach I am taking is to use the old tile stitching method coupled with a separate place name layer.

  The tile stitching starts with a layer of z12 tiles that are the same as normal z12 tiles except the main roads are about 50% thicker and it there are no place names.  You can get a rough idea of what that will look like by looking at the the current lowzoom tiles for the US - most of it was rendered using the old stitching method before many place names had been added.  

  I then propose a separate transparent layer for place names.  This potentially allows for multiple name layers for different scripts and languages.  I've heard some comments that  transparent layers are not a good solution - I'd be interested in understanding the pros and cons of doing this.  The alternative is to merge the transparent layer with the lowzoom tiles using Image Magick, which would achieve the same visual result but without the ability to dynamically switch the language. 

  I've started doing some test renderings in the south of England, although there is not really enough there yet to get a good feel for what it would look like:
  http://www.informationfreeway.org/?lat=50.87948576831506&lon=-0.8263735442015004&user=80n&zoom=11&layers=0000F00BT

  At this stage I'd appreciate any comments or suggestions.

  80n





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