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added quadtree usage

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commit 026a916e3b4c1b00cdc3289bb894f9f1e6ad7427 1 parent 8c933e2
@karussell authored
Showing with 13 additions and 2 deletions.
  1. +13 −2 README.md
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15 README.md
@@ -7,8 +7,8 @@ License
This software stands under Apache License 2
-Usage
-------------------
+Routing Usage
+---------------
Download OSM file (40MB compressed, then 450MB uncompressed), build graph hopper and run it:
@@ -24,3 +24,14 @@ If you want to import a bigger OSM (Germany) then run:
* Then a route should pop up like in this image ![from twitter](https://p.twimg.com/AvidlNPCMAA5e_n.png:medium)
* For Germany it takes approx 25 minutes for the import and roughly 1 minute for the ugly&slow UI to pop up. Probably you'll need to tune the memory settings - send me a mail if this fails!
* At the moment all operations require redrawing the graph which takes quite some time! So don't click or drag too much ;)
+
+QuadTree Usage
+---------------
+
+See the performacen comparison subproject and the articles:
+
+http://karussell.wordpress.com/2012/06/17/failed-experiment-memory-efficient-spatial-hashtable/
+
+http://karussell.wordpress.com/2012/05/29/tricks-to-speed-up-neighbor-searches-of-quadtrees-geo-spatial-java/
+
+http://karussell.wordpress.com/2012/05/23/spatial-keys-memory-efficient-geohashes/
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