require 'rexml/parsers/sax2parser'
require 'rexml/text'
require 'xml/libxml'
+ require 'digest/md5'
require 'RMagick'
class Mercator
lat = attributes['lat'].to_f
lon = attributes['lon'].to_f
gotlatlon = true
+ gotele = false
+ gotdate = false
@possible_points += 1
end
rat= Math.cos( ((max_lat + min_lat)/2.0) / 180.0 * 3.141592)
proj = OSM::Mercator.new((min_lat + max_lat) / 2, (max_lon + min_lon) / 2, (max_lat - min_lat) / width / rat, width, height)
+ linegc = Magick::Draw.new
+ linegc.stroke_linejoin('miter')
+ linegc.stroke_width(1)
+ linegc.stroke('#BBBBBB')
+ linegc.fill('#BBBBBB')
+
+ highlightgc = Magick::Draw.new
+ highlightgc.stroke_linejoin('miter')
+ highlightgc.stroke_width(3)
+ highlightgc.stroke('#000000')
+ highlightgc.fill('#000000')
+
images = []
frames.times do
- gc = Magick::Draw.new
- gc.stroke_linejoin('miter')
- gc.stroke('#FFFFFF')
- gc.fill('#FFFFFF')
- gc.rectangle(0,0,width,height)
- gc.stroke_width(1)
- images << gc
+ image = Magick::Image.new(width, height) do |image|
+ image.background_color = 'white'
+ image.format = 'GIF'
+ end
+
+ images << image
end
oldpx = 0.0
points do |p|
px = proj.x(p['longitude'])
py = proj.y(p['latitude'])
- frames.times do |n|
- images[n].stroke_width(1)
- images[n].stroke('#BBBBBB')
- images[n].fill('#BBBBBB')
- # puts "A #{px},#{py} - #{oldpx},#{oldpy}"
- images[n].line(px, py, oldpx, oldpy ) unless first
+
+ if m > 0
+ frames.times do |n|
+ if n == mm
+ gc = highlightgc.dup
+ else
+ gc = linegc.dup
+ end
+
+ gc.line(px, py, oldpx, oldpy)
+
+ gc.draw(images[n])
+ end
end
- images[mm].stroke_width(3)
- images[mm].stroke('#000000')
- images[mm].fill('#000000')
- images[mm].line(px, py, oldpx, oldpy ) unless first
- # puts "B #{px},#{py} - #{oldpx},#{oldpy}"
- m +=1
+
+ m += 1
if m > num_points.to_f / frames.to_f * (mm+1)
mm += 1
end
- first = false
+
oldpy = py
oldpx = px
end
il = Magick::ImageList.new
- frames.times do |n|
- canvas = Magick::Image.new(width, height) {
- self.background_color = 'white'
- }
- begin
- images[n].draw(canvas)
- rescue ArgumentError
- end
- canvas.format = 'GIF'
- il << canvas
+ images.each do |f|
+ il << f
end
il.delay = 50
il.format = 'GIF'
+
return il.to_blob
end
rat= Math.cos( ((max_lat + min_lat)/2.0) / 180.0 * 3.141592)
proj = OSM::Mercator.new((min_lat + max_lat) / 2, (max_lon + min_lon) / 2, (max_lat - min_lat) / width / rat, width, height)
- images = []
-
- gc = Magick::Draw.new
+ gc = Magick::Draw.new
gc.stroke_linejoin('miter')
+ gc.stroke_width(1)
+ gc.stroke('#000000')
+ gc.fill('#000000')
+
+ image = Magick::Image.new(width, height) do |image|
+ image.background_color = 'white'
+ image.format = 'GIF'
+ end
oldpx = 0.0
oldpy = 0.0
first = true
- gc.stroke_width(1)
- gc.stroke('#000000')
- gc.fill('#000000')
-
points do |p|
px = proj.x(p['longitude'])
py = proj.y(p['latitude'])
- gc.line(px, py, oldpx, oldpy ) unless first
- # puts "C #{px},#{py} - #{oldpx},#{oldpy}"
+
+ gc.dup.line(px, py, oldpx, oldpy).draw(image) unless first
+
first = false
oldpy = py
oldpx = px
end
- canvas = Magick::Image.new(width, height) {
- self.background_color = 'white'
- }
- begin
- gc.draw(canvas)
- rescue ArgumentError
- end
- canvas.format = 'GIF'
- return canvas.to_blob
+ return image.to_blob
end
end
image = XML::Node.new 'image'
@channel << image
url = XML::Node.new 'url'
- url << 'http://www.openstreetmap.org/feeds/mag_map-rss2.0.png'
+ url << 'http://www.openstreetmap.org/images/mag_map-rss2.0.png'
image << url
title = XML::Node.new 'title'
title << "OpenStreetMap"
Timeout::timeout(4) do
Net::HTTP.start('api.hostip.info') do |http|
country = http.get("/country.php?ip=#{ip_address}").body
- country = "GB" if country = "UK"
+ country = "GB" if country == "UK"
Net::HTTP.start('ws.geonames.org') do |http|
xml = REXML::Document.new(http.get("/countryInfo?country=#{country}").body)
xml.elements.each("geonames/country") do |ele|
rescue Exception
return nil
end
+
+ # Construct a random token of a given length
+ def self.make_token(length = 30)
+ chars = 'abcdefghijklmnopqrtuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
+ token = ''
+
+ length.times do
+ token += chars[(rand * chars.length).to_i].chr
+ end
+
+ return token
+ end
+
+ # Return an encrypted version of a password
+ def self.encrypt_password(password, salt)
+ return Digest::MD5.hexdigest(password) if salt.nil?
+ return Digest::MD5.hexdigest(salt + password)
+ end
+
+ # Return an SQL fragment to select a given area of the globe
+ def self.sql_for_area(minlat, minlon, maxlat, maxlon, prefix = nil)
+ tilesql = QuadTile.sql_for_area(minlat, minlon, maxlat, maxlon, prefix)
+ minlat = (minlat * 10000000).round
+ minlon = (minlon * 10000000).round
+ maxlat = (maxlat * 10000000).round
+ maxlon = (maxlon * 10000000).round
+
+ return "#{tilesql} AND #{prefix}latitude BETWEEN #{minlat} AND #{maxlat} AND #{prefix}longitude BETWEEN #{minlon} AND #{maxlon}"
+ end
end
projects / rails.git / blobdiff