+# The OSM module provides support functions for OSM.
module OSM
- # This piece of magic reads a GPX with SAX and spits out
- # lat/lng and stuff
- #
- # This would print every latitude value:
- #
- # gpx = OSM::GPXImporter.new('somefile.gpx')
- # gpx.points {|p| puts p['latitude']}
-
require 'time'
require 'rexml/parsers/sax2parser'
require 'rexml/text'
require 'digest/md5'
require 'RMagick'
+ # The base class for API Errors.
+ class APIError < RuntimeError
+ end
+
+ # Raised when an API object is not found.
+ class APINotFoundError < APIError
+ end
+
+ # Raised when a precondition to an API action fails sanity check.
+ class APIPreconditionFailedError < APIError
+ end
+
+ # Raised when to delete an already-deleted object.
+ class APIAlreadyDeletedError < APIError
+ end
+
+ # Helper methods for going to/from mercator and lat/lng.
class Mercator
include Math
#init me with your bounding box and the size of your image
-
def initialize(min_lat, min_lon, max_lat, max_lon, width, height)
xsize = xsheet(max_lon) - xsheet(min_lon)
ysize = ysheet(max_lat) - ysheet(min_lat)
end
+ # This piece of magic reads a GPX with SAX and spits out
+ # lat/lng and stuff
+ #
+ # This would print every latitude value:
+ #
+ # gpx = OSM::GPXImporter.new('somefile.gpx')
+ # gpx.points {|p| puts p['latitude']}
class GPXImporter
# FIXME swap REXML for libXML
attr_reader :possible_points
def initialize(feed_title='OpenStreetMap GPS Traces', feed_description='OpenStreetMap GPS Traces', feed_url='http://www.openstreetmap.org/traces/')
@doc = XML::Document.new
@doc.encoding = 'UTF-8'
-
+
rss = XML::Node.new 'rss'
@doc.root = rss
rss['version'] = "2.0"
return "#{tilesql} AND #{prefix}latitude BETWEEN #{minlat} AND #{maxlat} AND #{prefix}longitude BETWEEN #{minlon} AND #{maxlon}"
end
- class Potlatch # crazy shit
-
- # ----- getpresets
- # in: none
- # does: reads tag preset menus, colours, and autocomplete config files
- # out: [0] presets, [1] presetmenus, [2] presetnames,
- # [3] colours, [4] casing, [5] areas, [6] autotags
- # (all hashes)
- def self.get_presets
- RAILS_DEFAULT_LOGGER.info(" Message: getpresets")
-
- # Read preset menus
- presets={}
- presetmenus={}; presetmenus['point']=[]; presetmenus['way']=[]; presetmenus['POI']=[]
- presetnames={}; presetnames['point']={}; presetnames['way']={}; presetnames['POI']={}
- presettype=''
- presetcategory=''
- # StringIO.open(txt) do |file|
- File.open("#{RAILS_ROOT}/config/potlatch/presets.txt") do |file|
- file.each_line {|line|
- t=line.chomp
- if (t=~/(\w+)\/(\w+)/) then
- presettype=$1
- presetcategory=$2
- presetmenus[presettype].push(presetcategory)
- presetnames[presettype][presetcategory]=["(no preset)"]
- elsif (t=~/^(.+):\s?(.+)$/) then
- pre=$1; kv=$2
- presetnames[presettype][presetcategory].push(pre)
- presets[pre]={}
- kv.split(',').each {|a|
- if (a=~/^(.+)=(.*)$/) then presets[pre][$1]=$2 end
- }
- end
- }
- end
-
- # Read colours/styling
- colours={}; casing={}; areas={}
- File.open("#{RAILS_ROOT}/config/potlatch/colours.txt") do |file|
- file.each_line {|line|
- t=line.chomp
- if (t=~/(\w+)\s+([^\s]+)\s+([^\s]+)\s+([^\s]+)/) then
- tag=$1
- if ($2!='-') then colours[tag]=$2.hex end
- if ($3!='-') then casing[tag]=$3.hex end
- if ($4!='-') then areas[tag]=$4.hex end
- end
- }
- end
-
- # Read auto-complete
- autotags={}; autotags['point']={}; autotags['way']={}; autotags['POI']={};
- File.open("#{RAILS_ROOT}/config/potlatch/autocomplete.txt") do |file|
- file.each_line {|line|
- t=line.chomp
- if (t=~/^(\w+)\/(\w+)\s+(.+)$/) then
- tag=$1; type=$2; values=$3
- if values=='-' then autotags[type][tag]=[]
- else autotags[type][tag]=values.split(',').sort.reverse end
- end
- }
- end
-
- [presets,presetmenus,presetnames,colours,casing,areas,autotags]
- end
- end
end