X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/0944c1cf02ca3f2b17c9261e57a9a0b0c210a40d..2a80b2b45a7270d018b6caba61f262ecdc7a6553:/app/controllers/swf_controller.rb diff --git a/app/controllers/swf_controller.rb b/app/controllers/swf_controller.rb index 0e5b2e442..0e7e15bbf 100644 --- a/app/controllers/swf_controller.rb +++ b/app/controllers/swf_controller.rb @@ -1,10 +1,12 @@ class SwfController < ApplicationController + before_filter :check_api_readable # to log: # RAILS_DEFAULT_LOGGER.error("Args: #{args[0]}, #{args[1]}, #{args[2]}, #{args[3]}") # $log.puts Time.new.to_s+','+Time.new.usec.to_s+": started GPS script" # http://localhost:3000/api/0.4/swf/trackpoints?xmin=-2.32402605810577&xmax=-2.18386309423859&ymin=52.1546608755772&ymax=52.2272777906895&baselong=-2.25325793066437&basey=61.3948537948532&masterscale=5825.4222222222 + # ==================================================================== # Public methods @@ -18,10 +20,11 @@ class SwfController < ApplicationController basey =params['basey'].to_f masterscale =params['masterscale'].to_f - xmin=params['xmin'].to_f/0.0000001 - xmax=params['xmax'].to_f/0.0000001 - ymin=params['ymin'].to_f/0.0000001 - ymax=params['ymax'].to_f/0.0000001 + xmin=params['xmin'].to_f; + xmax=params['xmax'].to_f; + ymin=params['ymin'].to_f; + ymax=params['ymax'].to_f; + start=params['start'].to_i; # - Begin movie @@ -31,40 +34,41 @@ class SwfController < ApplicationController bounds_top =240*20 m ='' - m+=swfRecord(9,255.chr + 155.chr + 155.chr) #ÊBackground + m+=swfRecord(9,255.chr + 155.chr + 155.chr) # Background absx=0 absy=0 xl=yb= 9999999 xr=yt=-9999999 - # - Send SQL and draw line + # - Send SQL for GPS tracks b='' lasttime=0 - lastfile='-1' + lasttrack=lastfile='-1' if params['token'] - token=sqlescape(params['token']) - sql="SELECT gps_points.latitude*0.0000001 AS lat,gps_points.longitude*0.0000001 AS lon,gpx_files.id AS fileid,UNIX_TIMESTAMP(gps_points.timestamp) AS ts "+ - " FROM gpx_files,gps_points,users "+ - "WHERE gpx_files.id=gpx_id "+ - " AND gpx_files.user_id=users.id "+ - " AND token='#{token}' "+ - " AND (gps_points.longitude BETWEEN #{xmin} AND #{xmax}) "+ - " AND (gps_points.latitude BETWEEN #{ymin} AND #{ymax}) "+ - "ORDER BY fileid DESC,ts "+ - "LIMIT 10000" - else - sql="SELECT latitude*0.0000001 AS lat,longitude*0.0000001 AS lon,gpx_id AS fileid,UNIX_TIMESTAMP(timestamp) AS ts "+ + user=User.authenticate(:token => params[:token]) + sql="SELECT gps_points.latitude*0.0000001 AS lat,gps_points.longitude*0.0000001 AS lon,gpx_files.id AS fileid,"+ + " EXTRACT(EPOCH FROM gps_points.timestamp) AS ts, gps_points.trackid AS trackid "+ + " FROM gpx_files,gps_points "+ + "WHERE gpx_files.id=gpx_id "+ + " AND gpx_files.user_id=#{user.id} "+ + " AND "+OSM.sql_for_area(ymin,xmin,ymax,xmax,"gps_points.")+ + " AND (gps_points.timestamp IS NOT NULL) "+ + "ORDER BY fileid DESC,ts "+ + "LIMIT 10000 OFFSET #{start}" + else + sql="SELECT latitude*0.0000001 AS lat,longitude*0.0000001 AS lon,gpx_id AS fileid,"+ + " EXTRACT(EPOCH FROM timestamp) AS ts, gps_points.trackid AS trackid "+ " FROM gps_points "+ - "WHERE (longitude BETWEEN #{xmin} AND #{xmax}) "+ - " AND (latitude BETWEEN #{ymin} AND #{ymax}) "+ + "WHERE "+OSM.sql_for_area(ymin,xmin,ymax,xmax,"gps_points.")+ + " AND (gps_points.timestamp IS NOT NULL) "+ "ORDER BY fileid DESC,ts "+ - "LIMIT 10000" + "LIMIT 10000 OFFSET #{start}" end gpslist=ActiveRecord::Base.connection.select_all sql - # - Draw lines + # - Draw GPS trace lines r=startShape() gpslist.each do |row| @@ -72,18 +76,21 @@ class SwfController < ApplicationController ys=(lat2coord(row['lat'].to_f ,basey ,masterscale)*20).floor xl=[xs,xl].min; xr=[xs,xr].max yb=[ys,yb].min; yt=[ys,yt].max - if (row['ts'].to_i-lasttime<180 and row['fileid']==lastfile) - b+=drawTo(absx,absy,xs,ys) - else - b+=startAndMove(xs,ys) - end + if row['ts'].to_i-lasttime>180 or row['fileid']!=lastfile or row['trackid']!=lasttrack #or row['ts'].to_i==lasttime + b+=startAndMove(xs,ys,'01') + absx=xs.floor; absy=ys.floor + end + b+=drawTo(absx,absy,xs,ys) absx=xs.floor; absy=ys.floor lasttime=row['ts'].to_i lastfile=row['fileid'] + lasttrack=row['trackid'] while b.length>80 do r+=[b.slice!(0...80)].pack("B*") end end + + # (Unwayed segments removed) # - Write shape @@ -100,8 +107,7 @@ class SwfController < ApplicationController m=packRect(bounds_left,bounds_right,bounds_bottom,bounds_top) + 0.chr + 12.chr + packUI16(1) + m m='FWS' + 6.chr + packUI32(m.length+8) + m - response.headers["Content-Type"]="application/x-shockwave-flash" - render :text=>m + render :text => m, :content_type => "application/x-shockwave-flash" end private @@ -114,9 +120,10 @@ class SwfController < ApplicationController def startShape s =0.chr # No fill styles - s+=1.chr # One line style - s+=packUI16(5) + 0.chr + 255.chr + 255.chr # Width 5, RGB #00FFFF - s+=17.chr # 1 fill, 1 line index bit + s+=2.chr # Two line styles + s+=packUI16(0) + 0.chr + 255.chr + 255.chr # Width 5, RGB #00FFFF + s+=packUI16(0) + 255.chr + 0.chr + 255.chr # Width 5, RGB #FF00FF + s+=34.chr # 2 fill, 2 line index bits s end @@ -124,41 +131,66 @@ class SwfController < ApplicationController '000000' end - def startAndMove(x,y) + def startAndMove(x,y,col) d='001001' # Line style change, moveTo l =[lengthSB(x),lengthSB(y)].max d+=sprintf("%05b%0#{l}b%0#{l}b",l,x,y) - d+='1' # Select line style 1 + d+=col # Select line style end def drawTo(absx,absy,x,y) - d='11' # TypeFlag, EdgeFlag dx=x-absx dy=y-absy - + + # Split the line up if there's anything>16383, because + # that would overflow the 4 bits allowed for length + mstep=[dx.abs/16383,dy.abs/16383,1].max.ceil + xstep=dx/mstep + ystep=dy/mstep + d='' + for i in (1..mstep) + d+=drawSection(x,y,x+xstep,y+ystep) + x+=xstep + y+=ystep + end + d + end + + def drawSection(x1,y1,x2,y2) + d='11' # TypeFlag, EdgeFlag + dx=x2-x1 + dy=y2-y1 l =[lengthSB(dx),lengthSB(dy)].max d+=sprintf("%04b",l-2) d+='1' # GeneralLine d+=sprintf("%0#{l}b%0#{l}b",dx,dy) - end + end # ----------------------------------------------------------------------- # Specific data types + # SWF data block type + def swfRecord(id,r) if r.length>62 + # Long header: tag id, 0x3F, length return packUI16((id<<6)+0x3F) + packUI32(r.length) + r else + # Short header: tag id, length return packUI16((id<<6)+r.length) + r end end + # SWF RECT type + def packRect(a,b,c,d) l=[lengthSB(a), lengthSB(b), lengthSB(c), lengthSB(d)].max + # create binary string (00111001 etc.) - 5-byte length, then bbox n=sprintf("%05b%0#{l}b%0#{l}b%0#{l}b%0#{l}b",l,a,b,c,d) + # pack into byte string [n].pack("B*") end @@ -184,11 +216,11 @@ class SwfController < ApplicationController # (this is duplicated from amf_controller, should probably share) def lat2coord(a,basey,masterscale) - -(lat2y(a)-basey)*masterscale+250 + -(lat2y(a)-basey)*masterscale end def long2coord(a,baselong,masterscale) - (a-baselong)*masterscale+350 + (a-baselong)*masterscale end def lat2y(a)