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The Rails application that powers OpenStreetMap
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Tom Hughes e373c63837 Round latitude and longitude values in links to a sensible number of 
decimal places for the zoom level whilst still preserving accuracy
sufficient to position the map within a few pixels.

The relationship between zoom level, decimal places, and the accuracy
with which the map can then be positioned in pixels is as follows:

  Zoom  Decimals  Accuracy (pixels)

   1       0            1.42
   2       0            2.84
   3       1            0.57
   4       1            1.14
   5       1            2.28
   6       2            0.46
   7       2            0.91
   8       2            1.82
   9       3            0.36
   10      3            0.73
   11      3            1.46
   12      4            0.29
   13      4            0.58
   14      4            1.17
   15      5            0.23
   16      5            0.47
   17      5            0.93
   18      6            0.19

So the worse case is at zoom 2 where accuracy is still within 3 pixels.

Based on a patch by rjmunro.
2007-10-23 09:19:29 +00:00
app Patch from crschmidt to add an obvious permalink to the bottom right 2007-10-23 08:45:23 +00:00
config Add an API call to find the map tiles which have changed in a given period. 2007-10-09 23:41:26 +00:00
db Add a maptile_for_point() function for MySQL to work out which slippy 2007-10-09 22:59:32 +00:00
doc beginning of osm on rails 2006-07-28 21:41:39 +00:00
lib Fix geolocation to actually work... 2007-10-12 16:34:38 +00:00
public Round latitude and longitude values in links to a sensible number of 2007-10-23 09:19:29 +00:00
script Use a consistent name for the variable holding the relation count. 2007-10-07 14:16:14 +00:00
test Merge rails_port as of r4613 & fix tests. 2007-09-20 14:37:29 +00:00
Rakefile beginning of osm on rails 2006-07-28 21:41:39 +00:00
README add daemons 2006-12-01 12:06:38 +00:00

README 

INSTALL
=======

* get rails working (http://www.rubyonrails.org/)

* make your db (see db/README)

* install ruby libxml bindings:

   # sudo aptitude install libxml-ruby1.8 libxml-parser-ruby1.8

* make sure you have a MTA listening on localhost:25 if you want mail

* script/server

* thats it

API CHANGES FOR EDITOR AUTHORS
==============================

See

http://wiki.openstreetmap.org/index.php/REST#Changes_in_the_upcoming_0.4_API

HACKING
=======

log in to your site (proably localhost:3000)

create a user and confirm it

you want to play with the API (probably at localhost:3000/api/0.4/node/create etc)

Lots of tests are needed to test the API.

Lots of little things to make the site work like the old one.

Also see the 'rails_port' component for bugs:
http://trac.openstreetmap.org/query?status=new&status=assigned&status=reopened&component=rails_port&order=priority