Tech Support Blog

  • Subscribe to our RSS feed.
  • Twitter
  • StumbleUpon
  • Reddit
  • Facebook
  • Digg

Sunday, 11 July 2010

OSM Tilings

Posted on 08:55 by Unknown
This is two pictures of "tilings" of OpenStreetMap for use in global scenery. I downloaded a OSM new planet extract about a month ago; in the 11 months since I last grabbed it, the data size has grown 56%! The new, larger file required some changes to my extracting code. After much debugging, I was able to see this in QGIS:


The first picture is 1x1 tiles, which are derived from the second picture (10x10s). You'll see some "ragged" edges. This is because the cutting scheme leaves whole roads of interest in one piece even outside the tiling bounds. Later, more sophisticated code crops the road when the actual DSF is built.

The OSM processing tools are part of the open source scenery tools; I will get my changes checked in to source control over the next few days, although my code is only one of dozens of programs for bulk processing OSM.
Email ThisBlogThis!Share to XShare to FacebookShare to Pinterest
Posted in global scenery, Goofy Screenshots | No comments
Newer Post Older Post Home

0 comments:

Post a Comment

Subscribe to: Post Comments (Atom)

Popular Posts

  • Pixel Shaders and Moore's Law
    In my post on 64-bit computing and X-Plane, there's a point that's implicit: there is a cost (in development time) to adopting any ...
  • Hierarchy and WED
    I just finished fixing some bugs in WED regarding the hierarchy view. (To get a sense of what a hierarchy view is like, try AC3D...) In WED...
  • Is Bigger Always Better?
    We've been preaching "one big texture, not lots of little textures" for a while now, and generally speaking, packing a lot of ...
  • Systems Modeling and Physics Modeling
    In past blog posts I have tried to contrast two very different different approaches to simulation, which I would loosely call: "Predic...
  • How Framerate Dies - Glitching
    Back in the good old days (that would be X-Plane 6), X-Plane's framerate would suffer in two ways as you cranked up the rendering option...
  • The X-Desktop and iPhone Are Not Zero-Sum Games
    On the menu this morning: first a whiny rant, then a nerdy one. Someone pointed me at this post. Before I go into my geeky diatribe about l...
  • Clean Airport Layouts
    I have blogged about correct airport layouts before, but let me bring the point up again, because it is so important: You must create struc...
  • So How Big of a Mesh Can You Build?
    I get asked about the maximum mesh density in X-Plane a lot. First, I must note that X-Plane's mesh is adaptive - the triangles are not ...
  • What is a panel region?
    X-Plane 9 introduces a new OBJ feature: panel regions. The basic idea is this: In X-Plane 8 you could use the 2-d panel as a texture in you...
  • Why Do Custom Lights Use the Object Texture?
    I am trying to be disciplined and put documentation on the X-Plane wiki , and limit the blog to announcements, rants, and explanations of wh...

Categories

  • absurdly cute
  • Air Traffic Control
  • aircraft
  • Android
  • animation
  • announce
  • cockpits
  • documentation
  • drivers
  • file formats
  • global scenery
  • Goofy Screenshots
  • hacks
  • hardware
  • hobbies
  • inside x-plane
  • installer
  • ipad
  • iphone
  • legal
  • localization
  • modeling
  • off topic
  • palm pre
  • panels
  • performance
  • plugins
  • political
  • scenery system
  • tools
  • X-Plane 10
  • XSquawkBox

Blog Archive

  • ►  2011 (12)
    • ►  February (1)
    • ►  January (11)
  • ▼  2010 (111)
    • ►  December (4)
    • ►  November (4)
    • ►  October (10)
    • ►  September (9)
    • ►  August (12)
    • ▼  July (8)
      • Facade Tuning and Tips
      • Let Your Eyes Adjust
      • Performance of Panel Texture vs. 3-d Cockpit
      • Why Don't the Cars Work Quite Right in Replay?
      • Games Vs. Platforms
      • OSM Tilings
      • 64-Bit? It's On the Radar
      • A MeshTool Bug
    • ►  June (4)
    • ►  May (13)
    • ►  April (13)
    • ►  March (11)
    • ►  February (12)
    • ►  January (11)
  • ►  2009 (130)
    • ►  December (16)
    • ►  November (11)
    • ►  October (6)
    • ►  September (16)
    • ►  August (12)
    • ►  July (11)
    • ►  June (9)
    • ►  May (5)
    • ►  April (10)
    • ►  March (9)
    • ►  February (9)
    • ►  January (16)
  • ►  2008 (147)
    • ►  December (18)
    • ►  November (10)
    • ►  October (7)
    • ►  September (11)
    • ►  August (15)
    • ►  July (9)
    • ►  June (14)
    • ►  May (9)
    • ►  April (14)
    • ►  March (13)
    • ►  February (6)
    • ►  January (21)
  • ►  2007 (100)
    • ►  December (17)
    • ►  November (13)
    • ►  October (13)
    • ►  September (9)
    • ►  August (17)
    • ►  July (7)
    • ►  June (4)
    • ►  May (6)
    • ►  April (9)
    • ►  March (2)
    • ►  February (3)
Powered by Blogger.

About Me

Unknown
View my complete profile