Potlatch 0.4 (hopefully)

This commit is contained in:
Richard Fairhurst 2007-10-07 20:26:00 +00:00
parent e8dbe46f7e
commit d626256bc2
3 changed files with 165 additions and 380 deletions

View file

@ -13,7 +13,8 @@ class AmfController < ApplicationController
# ---- talk process AMF request
def talk
req=StringIO.new(request.raw_post) # Get POST data as request
req=StringIO.new(request.raw_post+0.chr) # Get POST data as request
# (cf http://www.ruby-forum.com/topic/122163)
req.read(2) # Skip version indicator and client ID
results={} # Results of each body
@ -42,7 +43,6 @@ class AmfController < ApplicationController
when 'getway'; results[index]=putdata(index,getway(args))
when 'putway'; results[index]=putdata(index,putway(args))
when 'deleteway'; results[index]=putdata(index,deleteway(args))
when 'makeway'; results[index]=putdata(index,makeway(args))
when 'putpoi'; results[index]=putdata(index,putpoi(args))
when 'getpoi'; results[index]=putdata(index,getpoi(args))
end
@ -94,8 +94,9 @@ motorway: highway=motorway,ref=(type road number)
trunk road: highway=trunk,ref=(type road number),name=(type road name)
primary road: highway=primary,ref=(type road number),name=(type road name)
secondary road: highway=secondary,ref=(type road number),name=(type road name)
residential road: highway=residential,name=(type road name)
unclassified road: highway=unclassified,name=(type road name)
tertiary road: highway=tertiary,ref=,name=(type road name)
residential road: highway=residential,ref=,name=(type road name)
unclassified road: highway=unclassified,ref=,name=(type road name)
way/footway
footpath: highway=footway,foot=yes
@ -126,8 +127,8 @@ disused railway tracks: railway=disused
course of old railway: railway=abandoned
way/natural
lake: landuse=water
forest: landuse=forest
lake: natural=water,landuse=
forest: landuse=forest,natural=
point/road
mini roundabout: highway=mini_roundabout
@ -155,7 +156,7 @@ viaduct: railway=viaduct
level crossing: railway=crossing
point/natural
peak: point=peak
peak: natural=peak
POI/road
car park: amenity=parking
@ -221,23 +222,21 @@ EOF
RAILS_DEFAULT_LOGGER.info(" Message: whichways, bbox=#{xmin},#{ymin},#{xmax},#{ymax}")
waylist = WaySegment.find_by_sql("SELECT DISTINCT current_way_segments.id AS wayid"+
" FROM current_way_segments,current_segments,current_nodes,current_ways "+
" WHERE segment_id=current_segments.id "+
" AND current_segments.visible=1 "+
" AND node_a=current_nodes.id "+
" AND current_ways.id=current_way_segments.id "+
waylist = ActiveRecord::Base.connection.select_all("SELECT DISTINCT current_way_nodes.id AS wayid"+
" FROM current_way_nodes,current_nodes,current_ways "+
" WHERE current_nodes.id=current_way_nodes.node_id "+
" AND current_nodes.visible=1 "+
" AND current_ways.id=current_way_nodes.id "+
" AND current_ways.visible=1 "+
" AND "+OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes."))
ways = waylist.collect {|a| a.wayid.to_i } # get an array of way id's
ways = waylist.collect {|a| a['wayid'].to_i } # get an array of way id's
pointlist = ActiveRecord::Base.connection.select_all("SELECT current_nodes.id,current_nodes.latitude*0.0000001 AS lat,current_nodes.longitude*0.0000001 AS lng,current_nodes.tags "+
" FROM current_nodes "+
" LEFT OUTER JOIN current_segments cs1 ON cs1.node_a=current_nodes.id "+
" LEFT OUTER JOIN current_segments cs2 ON cs2.node_b=current_nodes.id "+
" LEFT OUTER JOIN current_way_nodes cwn ON cwn.node_id=current_nodes.id "+
" WHERE "+OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes.")+
" AND cs1.id IS NULL AND cs2.id IS NULL "+
" AND cwn.id IS NULL "+
" AND current_nodes.visible=1")
points = pointlist.collect {|a| [a['id'],long2coord(a['lng'].to_f,baselong,masterscale),lat2coord(a['lat'].to_f,basey,masterscale),tag2array(a['tags'])] } # get a list of node ids and their tags
@ -260,20 +259,16 @@ EOF
RAILS_DEFAULT_LOGGER.info(" Message: getway, id=#{wayid}")
readwayquery(wayid).each {|row|
xs1=long2coord(row['long1'].to_f,baselong,masterscale); ys1=lat2coord(row['lat1'].to_f,basey,masterscale)
xs2=long2coord(row['long2'].to_f,baselong,masterscale); ys2=lat2coord(row['lat2'].to_f,basey,masterscale)
points << [xs1,ys1,row['id1'].to_i,0,tag2array(row['tags1']),0] if (row['id1'].to_i!=lastid)
lastid = row['id2'].to_i
points << [xs2,ys2,row['id2'].to_i,1,tag2array(row['tags2']),row['segment_id'].to_i]
xmin = [xmin,row['long1'].to_f,row['long2'].to_f].min
xmax = [xmax,row['long1'].to_f,row['long2'].to_f].max
ymin = [ymin,row['lat1'].to_f,row['lat2'].to_f].min
ymax = [ymax,row['lat1'].to_f,row['lat2'].to_f].max
points<<[long2coord(row['longitude'].to_f,baselong,masterscale),lat2coord(row['latitude'].to_f,basey,masterscale),row['id'].to_i,nil,tag2array(row['tags'])]
xmin = [xmin,row['longitude'].to_f].min
xmax = [xmax,row['longitude'].to_f].max
ymin = [ymin,row['latitude'].to_f].min
ymax = [ymax,row['latitude'].to_f].max
}
attributes={}
attrlist=ActiveRecord::Base.connection.select_all "SELECT k,v FROM current_way_tags WHERE id=#{wayid}"
attrlist.each {|a| attributes[a['k']]=a['v'] }
attrlist.each {|a| attributes[a['k'].gsub(':','|')]=a['v'] }
[objname,points,attributes,xmin,xmax,ymin,ymax]
end
@ -284,10 +279,11 @@ EOF
# xmin,xmax,ymin,ymax
def putway(args)
RAILS_DEFAULT_LOGGER.info(" putway started")
usertoken,originalway,points,attributes,baselong,basey,masterscale=args
uid=getuserid(usertoken)
return if !uid
db_uqs='uniq'+uid.to_s+originalway.to_i.abs.to_s+Time.new.to_i.to_s # temp uniquesegments table name, typically 51 chars
RAILS_DEFAULT_LOGGER.info(" putway authenticated happily")
db_uqn='unin'+uid.to_s+originalway.to_i.abs.to_s+Time.new.to_i.to_s # temp uniquenodes table name, typically 51 chars
db_now='@now'+uid.to_s+originalway.to_i.abs.to_s+Time.new.to_i.to_s # 'now' variable name, typically 51 chars
ActiveRecord::Base.connection.execute("SET #{db_now}=NOW()")
@ -297,13 +293,14 @@ EOF
# -- 3. read original way into memory
xc={}; yc={}; tagc={}; seg={}
xc={}; yc={}; tagc={}
if originalway>0
way=originalway
readwayquery(way).each { |row|
id1=row['id1'].to_i; xc[id1]=row['long1'].to_f; yc[id1]=row['lat1'].to_f; tagc[id1]=row['tags1']
id2=row['id2'].to_i; xc[id2]=row['long2'].to_f; yc[id2]=row['lat2'].to_f; tagc[id2]=row['tags2']
seg[row['segment_id'].to_i]=id1.to_s+'-'+id2.to_s
id=row['id'].to_i
xc[id]=row['longitude'].to_f
yc[id]=row['latitude' ].to_f
tagc[id]=row['tags']
}
ActiveRecord::Base.connection.update("UPDATE current_ways SET timestamp=#{db_now},user_id=#{uid},visible=1 WHERE id=#{way}")
else
@ -320,6 +317,7 @@ EOF
xmax=ymax=-999999
insertsql=''
renumberednodes={}
nodelist=[]
points.each_index do |i|
xs=coord2long(points[i][0],masterscale,baselong)
@ -328,7 +326,6 @@ EOF
ymin=[ys,ymin].min; ymax=[ys,ymax].max
node=points[i][2].to_i
tagstr=array2tag(points[i][4])
tagstr=tagstr.gsub(/[\000-\037]/,"")
tagsql="'"+sqlescape(tagstr)+"'"
lat=(ys * 10000000).round
long=(xs * 10000000).round
@ -341,14 +338,16 @@ EOF
newnode=ActiveRecord::Base.connection.insert("INSERT INTO current_nodes ( latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES ( #{lat},#{long},#{db_now},#{uid},1,#{tagsql},#{tile})")
ActiveRecord::Base.connection.insert("INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES (#{newnode},#{lat},#{long},#{db_now},#{uid},1,#{tagsql},#{tile})")
points[i][2]=newnode
nodelist.push(newnode)
renumberednodes[node.to_s]=newnode.to_s
else
points[i][2]=renumberednodes[node.to_s].to_i
end
elsif xc.has_key?(node)
nodelist.push(node)
# old node from original way - update
if (xs!=xc[node] or ys!=yc[node] or tagstr!=tagc[node])
if (xs!=xc[node] or (ys/0.0000001).round!=(yc[node]/0.0000001).round or tagstr!=tagc[node])
ActiveRecord::Base.connection.insert("INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tags,tile) VALUES (#{node},#{lat},#{long},#{db_now},#{uid},1,#{tagsql},#{tile})")
ActiveRecord::Base.connection.update("UPDATE current_nodes SET latitude=#{lat},longitude=#{long},timestamp=#{db_now},user_id=#{uid},tags=#{tagsql},visible=1,tile=#{tile} WHERE id=#{node}")
end
@ -358,58 +357,9 @@ EOF
end
# -- 6.i compare segments
# -- 6a. delete any nodes not in modified way
numberedsegments={}
seglist='' # list of existing segments that we want to keep
for i in (0..(points.length-2))
if (points[i+1][3].to_i==0) then next end
segid=points[i+1][5].to_i
from =points[i ][2].to_i
to =points[i+1][2].to_i
if seg.has_key?(segid)
# if segment exists, check it still refers to the same nodes
if seg[segid]=="#{from}-#{to}" then
if (seglist!='') then seglist+=',' end; seglist+=segid.to_s
next
end
elsif segid>0
# not in previous version of way, but supplied, so assume
# that it's come from makeway (i.e. unwayed segments)
if (seglist!='') then seglist+=',' end; seglist+=segid.to_s
next
end
segid=ActiveRecord::Base.connection.insert("INSERT INTO current_segments ( node_a,node_b,timestamp,user_id,visible,tags) VALUES ( #{from},#{to},#{db_now},#{uid},1,'')")
ActiveRecord::Base.connection.insert("INSERT INTO segments (id,node_a,node_b,timestamp,user_id,visible,tags) VALUES (#{segid},#{from},#{to},#{db_now},#{uid},1,'')")
points[i+1][5]=segid
numberedsegments[(i+1).to_s]=segid.to_s
end
# -- 6.ii insert new way segments
createuniquesegments(way,db_uqs,seglist) # segments which appear in this way but no other
# delete segments from uniquesegments (and not in modified way)
sql=<<-EOF
INSERT INTO segments (id,node_a,node_b,timestamp,user_id,visible)
SELECT DISTINCT segment_id,node_a,node_b,#{db_now},#{uid},0
FROM current_segments AS cs, #{db_uqs} AS us
WHERE cs.id=us.segment_id AND cs.visible=1
EOF
ActiveRecord::Base.connection.insert(sql)
sql=<<-EOF
UPDATE current_segments AS cs, #{db_uqs} AS us
SET cs.timestamp=#{db_now},cs.visible=0,cs.user_id=#{uid}
WHERE cs.id=us.segment_id AND cs.visible=1
EOF
ActiveRecord::Base.connection.update(sql)
# delete nodes not in modified way or any other segments
createuniquenodes(db_uqs,db_uqn) # nodes which appear in this way but no other
createuniquenodes(way,db_uqn,nodelist) # nodes which appear in this way but no other
sql=<<-EOF
INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tile)
@ -426,26 +376,25 @@ EOF
EOF
ActiveRecord::Base.connection.update(sql)
ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqs}")
deleteuniquenoderelations(db_uqn,uid,db_now)
ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqn}")
# insert new version of route into way_segments
# 6b. insert new version of route into way_nodes
insertsql =''
currentsql=''
sequence =1
for i in (0..(points.length-2))
if (points[i+1][3].to_i==0) then next end
points.each do |p|
if insertsql !='' then insertsql +=',' end
if currentsql!='' then currentsql+=',' end
insertsql +="(#{way},#{points[i+1][5]},#{version})"
currentsql+="(#{way},#{points[i+1][5]},#{sequence})"
insertsql +="(#{way},#{p[2]},#{sequence},#{version})"
currentsql+="(#{way},#{p[2]},#{sequence})"
sequence +=1
end
ActiveRecord::Base.connection.execute("DELETE FROM current_way_segments WHERE id=#{way}");
ActiveRecord::Base.connection.insert("INSERT INTO way_segments (id,segment_id,version ) VALUES #{insertsql}");
ActiveRecord::Base.connection.insert("INSERT INTO current_way_segments (id,segment_id,sequence_id) VALUES #{currentsql}");
ActiveRecord::Base.connection.execute("DELETE FROM current_way_nodes WHERE id=#{way}");
ActiveRecord::Base.connection.insert( "INSERT INTO way_nodes (id,node_id,sequence_id,version) VALUES #{insertsql}");
ActiveRecord::Base.connection.insert( "INSERT INTO current_way_nodes (id,node_id,sequence_id ) VALUES #{currentsql}");
# -- 7. insert new way tags
@ -456,17 +405,15 @@ EOF
if v[0,6]=='(type ' then next end
if insertsql !='' then insertsql +=',' end
if currentsql!='' then currentsql+=',' end
k=k.gsub(/[\000-\037]/,"")
v=v.gsub(/[\000-\037]/,"")
insertsql +="(#{way},'"+sqlescape(k)+"','"+sqlescape(v)+"',#{version})"
currentsql+="(#{way},'"+sqlescape(k)+"','"+sqlescape(v)+"')"
insertsql +="(#{way},'"+sqlescape(k.gsub('|',':'))+"','"+sqlescape(v)+"',#{version})"
currentsql+="(#{way},'"+sqlescape(k.gsub('|',':'))+"','"+sqlescape(v)+"')"
end
ActiveRecord::Base.connection.execute("DELETE FROM current_way_tags WHERE id=#{way}")
if (insertsql !='') then ActiveRecord::Base.connection.insert("INSERT INTO way_tags (id,k,v,version) VALUES #{insertsql}" ) end
if (currentsql!='') then ActiveRecord::Base.connection.insert("INSERT INTO current_way_tags (id,k,v) VALUES #{currentsql}") end
[originalway,way,renumberednodes,numberedsegments,xmin,xmax,ymin,ymax]
[originalway,way,renumberednodes,xmin,xmax,ymin,ymax]
end
# ----- putpoi (user token, id, x,y,tag array,visible,baselong,basey,masterscale)
@ -483,6 +430,13 @@ EOF
id=id.to_i
visible=visible.to_i
if visible==0 then
# if deleting, check node hasn't become part of a way
inway=ActiveRecord::Base.connection.select_one("SELECT cw.id FROM current_ways cw,current_way_nodes cwn WHERE cw.id=cwn.id AND cw.visible=1 AND cwn.node_id=#{id} LIMIT 1")
unless inway.nil? then return [id,id] end # should really return an error
deleteitemrelations(id,'node',uid,db_now)
end
x=coord2long(x.to_f,masterscale,baselong)
y=coord2lat(y.to_f,masterscale,basey)
tagsql="'"+sqlescape(array2tag(tags))+"'"
@ -515,43 +469,28 @@ EOF
tag2array(poi['tags'])]
end
# ----- deleteway (user token, way)
# ----- deleteway (user token, way, nodes to keep)
# returns way ID only
def deleteway(args)
usertoken,way=args
usertoken,way,preserve=args
RAILS_DEFAULT_LOGGER.info(" Message: deleteway, id=#{way}")
uid=getuserid(usertoken); if !uid then return end
way=way.to_i
db_uqs='uniq'+uid.to_s+way.to_i.abs.to_s+Time.new.to_i.to_s # temp uniquesegments table name, typically 51 chars
db_uqn='unin'+uid.to_s+way.to_i.abs.to_s+Time.new.to_i.to_s # temp uniquenodes table name, typically 51 chars
db_now='@now'+uid.to_s+way.to_i.abs.to_s+Time.new.to_i.to_s # 'now' variable name, typically 51 chars
ActiveRecord::Base.connection.execute("SET #{db_now}=NOW()")
createuniquesegments(way,db_uqs,'')
# - delete any otherwise unused segments
# - delete any otherwise unused nodes
sql=<<-EOF
INSERT INTO segments (id,node_a,node_b,timestamp,user_id,visible)
SELECT DISTINCT segment_id,node_a,node_b,#{db_now},#{uid},0
FROM current_segments AS cs, #{db_uqs} AS us
WHERE cs.id=us.segment_id
EOF
ActiveRecord::Base.connection.insert(sql)
createuniquenodes(way,db_uqn,[])
sql=<<-EOF
UPDATE current_segments AS cs, #{db_uqs} AS us
SET cs.timestamp=#{db_now},cs.visible=0,cs.user_id=#{uid}
WHERE cs.id=us.segment_id
EOF
ActiveRecord::Base.connection.update(sql)
# - delete any unused nodes
createuniquenodes(db_uqs,db_uqn)
unless (preserve.empty?) then
ActiveRecord::Base.connection.execute("DELETE FROM #{db_uqn} WHERE node_id IN ("+preserve.join(',')+")")
end
sql=<<-EOF
INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tile)
@ -568,233 +507,113 @@ EOF
EOF
ActiveRecord::Base.connection.update(sql)
ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqs}")
deleteuniquenoderelations(db_uqn,uid,db_now)
ActiveRecord::Base.connection.execute("DROP TABLE #{db_uqn}")
# - delete way
ActiveRecord::Base.connection.insert("INSERT INTO ways (id,user_id,timestamp,visible) VALUES (#{way},#{uid},#{db_now},0)")
ActiveRecord::Base.connection.update("UPDATE current_ways SET user_id=#{uid},timestamp=#{db_now},visible=0 WHERE id=#{way}")
ActiveRecord::Base.connection.execute("DELETE FROM current_way_segments WHERE id=#{way}")
ActiveRecord::Base.connection.execute("DELETE FROM current_way_nodes WHERE id=#{way}")
ActiveRecord::Base.connection.execute("DELETE FROM current_way_tags WHERE id=#{way}")
deleteitemrelations(way,'way',uid,db_now)
way
end
# ----- makeway(x,y,baselong,basey,masterscale)
# returns way made from unwayed segments
def makeway(args)
usertoken,x,y,baselong,basey,masterscale=args
uid=getuserid(usertoken)
return if !uid
points=[]
toreverse=[] # segments to reverse
nodesused={} # so we don't go over the same node twice
# - find start point near x
xc=coord2long(x,masterscale,baselong)
yc=coord2lat(y,masterscale,basey)
RAILS_DEFAULT_LOGGER.info(" Message: makeway, xc=#{xc}, y=#{yc}")
xs1=xc-0.001; xs2=xc+0.001
ys1=yc-0.001; ys2=yc+0.001
sql=<<-EOF
SELECT cn1.latitude*0.0000001 AS lat1,cn1.longitude*0.0000001 AS lon1,cn1.id AS id1,
cn2.latitude*0.0000001 AS lat2,cn2.longitude*0.0000001 AS lon2,cn2.id AS id2, cs.id AS segid
FROM current_nodes AS cn1,
current_nodes AS cn2,
current_segments AS cs
LEFT OUTER JOIN current_way_segments ON segment_id=cs.id
WHERE #{OSM.sql_for_area(ys1,xs1,ys2,xs2,"cn1.")}
AND segment_id IS NULL
AND cs.visible=1
AND cn1.id=node_a AND cn1.visible=1
AND cn2.id=node_b AND cn2.visible=1
ORDER BY SQRT(POW(cn1.longitude-#{xc},2)+
POW(cn1.latitude -#{yc},2))
LIMIT 1
EOF
row=ActiveRecord::Base.connection.select_one sql
if row.nil? then return [0,0,0,0,0] end
xs1=long2coord(row['lon1'].to_f,baselong,masterscale); ys1=lat2coord(row['lat1'].to_f,basey,masterscale)
xs2=long2coord(row['lon2'].to_f,baselong,masterscale); ys2=lat2coord(row['lat2'].to_f,basey,masterscale)
xmin=[xs1,xs2].min; xmax=[xs1,xs2].max
ymin=[ys1,ys2].min; ymax=[ys1,ys2].max
nodesused[row['id1'].to_i]=true
nodesused[row['id2'].to_i]=true
points<<[xs1,ys1,row['id1'].to_i,1,{},0]
points<<[xs2,ys2,row['id2'].to_i,1,{},row['segid'].to_i]
# - extend at start, then end
while (a,point,nodesused,toreverse=findconnect(points[0][2],nodesused,'b',toreverse,baselong,basey,masterscale))[0]
points[0][5]=point[5]; point[5]=0 # segment leads to next node
points.unshift(point)
xmin=[point[0],xmin].min; xmax=[point[0],xmax].max
ymin=[point[1],ymin].min; ymax=[point[1],ymax].max
end
while (a,point,nodesused,toreverse=findconnect(points[-1][2],nodesused,'a',toreverse,baselong,basey,masterscale))[0]
points.push(point)
xmin=[point[0],xmin].min; xmax=[point[0],xmax].max
ymin=[point[1],ymin].min; ymax=[point[1],ymax].max
end
points[0][3]=0 # start with a move
# reverse segments in toreverse
if toreverse.length>0
sql=<<-EOF
UPDATE current_segments c1, current_segments c2
SET c1.node_a=c2.node_b,c1.node_b=c2.node_a,
c1.timestamp=NOW(),c1.user_id=#{uid}
WHERE c1.id=c2.id
AND c1.id IN (#{toreverse.join(',')})
EOF
ActiveRecord::Base.connection.update sql
sql=<<-EOF
INSERT INTO segments
(SELECT * FROM current_segments
WHERE id IN (#{toreverse.join(',')}))
EOF
ActiveRecord::Base.connection.insert sql
end
[points,xmin,xmax,ymin,ymax]
end
def findconnect(id,nodesused,lookfor,toreverse,baselong,basey,masterscale)
# get all segments with 'id' as a point
# (to look for both node_a and node_b, UNION is faster than node_a=id OR node_b=id)!
sql=<<-EOF
SELECT cn1.latitude*0.0000001 AS lat1,cn1.longitude*0.0000001 AS lon1,cn1.id AS id1,
cn2.latitude*0.0000001 AS lat2,cn2.longitude*0.0000001 AS lon2,cn2.id AS id2, cs.id AS segid
FROM current_nodes AS cn1,
current_nodes AS cn2,
current_segments AS cs
LEFT OUTER JOIN current_way_segments ON segment_id=cs.id
WHERE segment_id IS NULL
AND cs.visible=1
AND cn1.id=node_a AND cn1.visible=1
AND cn2.id=node_b AND cn2.visible=1
AND node_a=#{id}
UNION
SELECT cn1.latitude*0.0000001 AS lat1,cn1.longitude*0.0000001 AS lon1,cn1.id AS id1,
cn2.latitude*0.0000001 AS lat2,cn2.longitude*0.0000001 AS lon2,cn2.id AS id2, cs.id AS segid
FROM current_nodes AS cn1,
current_nodes AS cn2,
current_segments AS cs
LEFT OUTER JOIN current_way_segments ON segment_id=cs.id
WHERE segment_id IS NULL
AND cs.visible=1
AND cn1.id=node_a AND cn1.visible=1
AND cn2.id=node_b AND cn2.visible=1
AND node_b=#{id}
EOF
connectlist=ActiveRecord::Base.connection.select_all sql
if lookfor=='b' then tocol='id1'; tolat='lat1'; tolon='lon1'; fromcol='id2'; fromlat='lat2'; fromlon='lon2'
else tocol='id2'; tolat='lat2'; tolon='lon2'; fromcol='id1'; fromlat='lat1'; fromlon='lon1'
end
# eliminate those already in the hash
connex=0
point=nil
connectlist.each { |row|
tonode=row[tocol].to_i
fromnode=row[fromcol].to_i
if id==tonode and !nodesused.has_key?(fromnode)
# wrong way round; add, then add to 'segments to reverse' list
connex+=1
nodesused[fromnode]=true
point=[long2coord(row[fromlon].to_f,baselong,masterscale),lat2coord(row[fromlat].to_f,basey,masterscale),fromnode,1,{},row['segid'].to_i]
toreverse.push(row['segid'].to_i)
elsif id==fromnode and !nodesused.has_key?(tonode)
# right way round; just add
connex+=1
point=[long2coord(row[tolon].to_f,baselong,masterscale),lat2coord(row[tolat].to_f,basey,masterscale),tonode,1,{},row['segid'].to_i]
nodesused[tonode]=true
end
}
# if only one left, then add it; otherwise return false
if connex!=1 or point.nil? then
return [false,[],nodesused,toreverse]
else
return [true,point,nodesused,toreverse]
end
end
# ====================================================================
# Support functions for remote calls
def readwayquery(id)
ActiveRecord::Base.connection.select_all "SELECT n1.latitude*0.0000001 AS lat1,n1.longitude*0.0000001 AS long1,n1.id AS id1,n1.tags as tags1, "+
" n2.latitude*0.0000001 AS lat2,n2.longitude*0.0000001 AS long2,n2.id AS id2,n2.tags as tags2,segment_id "+
" FROM current_way_segments,current_segments,current_nodes AS n1,current_nodes AS n2 "+
" WHERE current_way_segments.id=#{id} "+
" AND segment_id=current_segments.id "+
" AND current_segments.visible=1 "+
" AND n1.id=node_a AND n2.id=node_b "+
" AND n1.visible=1 AND n2.visible=1 "+
ActiveRecord::Base.connection.select_all "SELECT latitude*0.0000001 AS latitude,longitude*0.0000001 AS longitude,current_nodes.id,tags "+
" FROM current_way_nodes,current_nodes "+
" WHERE current_way_nodes.id=#{id} "+
" AND current_way_nodes.node_id=current_nodes.id "+
" AND current_nodes.visible=1 "+
" ORDER BY sequence_id"
end
def createuniquesegments(way,uqs_name,seglist)
# Finds segments which appear in (previous version of) this way and no other
sql=<<-EOF
CREATE TEMPORARY TABLE #{uqs_name}
SELECT a.segment_id
FROM (SELECT DISTINCT segment_id FROM current_way_segments
WHERE id = #{way}) a
LEFT JOIN current_way_segments b
ON b.segment_id = a.segment_id
AND b.id != #{way}
WHERE b.segment_id IS NULL
EOF
if (seglist!='') then sql+=" AND a.segment_id NOT IN (#{seglist})" end
ActiveRecord::Base.connection.execute(sql)
end
def createuniquenodes(uqs_name,uqn_name)
# Finds nodes which appear in uniquesegments but no other segments
def createuniquenodes(way,uqn_name,nodelist)
# Find nodes which appear in this way but no others
sql=<<-EOF
CREATE TEMPORARY TABLE #{uqn_name}
SELECT DISTINCT node_id
FROM (SELECT cn.id AS node_id
FROM current_nodes AS cn,
current_segments AS cs,
#{uqs_name} AS us
WHERE cs.id=us.segment_id
AND cn.id=cs.node_a) AS n
LEFT JOIN current_segments AS cs2 ON node_id=cs2.node_a AND cs2.visible=1
LEFT JOIN current_segments AS cs3 ON node_id=cs3.node_b AND cs3.visible=1
WHERE cs2.node_a IS NULL
AND cs3.node_b IS NULL
EOF
ActiveRecord::Base.connection.execute(sql)
sql=<<-EOF
INSERT INTO #{uqn_name}
SELECT DISTINCT node_id
FROM (SELECT cn.id AS node_id
FROM current_nodes AS cn,
current_segments AS cs,
#{uqs_name} AS us
WHERE cs.id=us.segment_id
AND cn.id=cs.node_b) AS n
LEFT JOIN current_segments AS cs2 ON node_id=cs2.node_a AND cs2.visible=1
LEFT JOIN current_segments AS cs3 ON node_id=cs3.node_b AND cs3.visible=1
WHERE cs2.node_a IS NULL
AND cs3.node_b IS NULL
SELECT a.node_id
FROM (SELECT DISTINCT node_id FROM current_way_nodes
WHERE id=#{way}) a
LEFT JOIN current_way_nodes b
ON b.node_id=a.node_id
AND b.id!=#{way}
WHERE b.node_id IS NULL
EOF
unless nodelist.empty? then
sql+="AND a.node_id NOT IN ("+nodelist.join(',')+")"
end
ActiveRecord::Base.connection.execute(sql)
end
# ====================================================================
# Relations handling
# deleteuniquenoderelations(uqn_name,uid,db_now)
# deleteitemrelations(way|node,'way'|'node',uid,db_now)
def deleteuniquenoderelations(uqn_name,uid,db_now)
sql=<<-EOF
SELECT node_id,cr.id FROM #{uqn_name},current_relation_members crm,current_relations cr
WHERE crm.member_id=node_id
AND crm.member_type='node'
AND crm.id=cr.id
AND cr.visible=1
EOF
relnodes=ActiveRecord::Base.connection.select_all(sql)
relnodes.each do |a|
removefromrelation(a['node_id'],'node',a['id'],uid,db_now)
end
end
def deleteitemrelations(objid,type,uid,db_now)
sql=<<-EOF
SELECT cr.id FROM current_relation_members crm,current_relations cr
WHERE crm.member_id=#{objid}
AND crm.member_type='#{type}'
AND crm.id=cr.id
AND cr.visible=1
EOF
relways=ActiveRecord::Base.connection.select_all(sql)
relways.each do |a|
removefromrelation(objid,type,a['id'],uid,db_now)
end
end
def removefromrelation(objid,type,relation,uid,db_now)
rver=ActiveRecord::Base.connection.insert("INSERT INTO relations (id,user_id,timestamp,visible) VALUES (#{relation},#{uid},#{db_now},1)")
tagsql=<<-EOF
INSERT INTO relation_tags (id,k,v,version)
SELECT id,k,v,#{rver} FROM current_relation_tags
WHERE id=#{relation}
EOF
ActiveRecord::Base.connection.insert(tagsql)
membersql=<<-EOF
INSERT INTO relation_members (id,member_type,member_id,member_role,version)
SELECT id,member_type,member_id,member_role,#{rver} FROM current_relation_members
WHERE id=#{relation}
AND (member_id!=#{objid} OR member_type!='#{type}')
EOF
ActiveRecord::Base.connection.insert(membersql)
ActiveRecord::Base.connection.update("UPDATE current_relations SET user_id=#{uid},timestamp=#{db_now} WHERE id=#{relation}")
ActiveRecord::Base.connection.execute("DELETE FROM current_relation_members WHERE id=#{relation} AND member_type='#{type}' AND member_id=#{objid}")
end
def sqlescape(a)
a.gsub("'","''").gsub(92.chr,92.chr+92.chr)
a.gsub(/[\000-\037]/,"").gsub("'","''").gsub(92.chr,92.chr+92.chr)
end
def tag2array(a)
@ -805,7 +624,7 @@ def tag2array(a)
k,v=b.split('=')
if k.nil? then k='' end
if v.nil? then v='' end
tags[k.gsub('#%','=')]=v.gsub('#%','=')
tags[k.gsub('#%','=').gsub(':','|')]=v.gsub('#%','=')
end
tags
end
@ -816,7 +635,7 @@ def array2tag(a)
if v=='' then next end
if v[0,6]=='(type ' then next end
if str!='' then str+=';' end
str+=k.gsub(';',';;;').gsub('=','===')+'='+v.gsub(';',';;;').gsub('=','===')
str+=k.gsub(';',';;;').gsub('=','===').gsub('|',':')+'='+v.gsub(';',';;;').gsub('=','===')
end
str
end

View file

@ -86,41 +86,7 @@ class SwfController < ApplicationController
end
end
# - Draw unwayed segments
if params['unwayed']=='true'
sql="SELECT cn1.latitude*0.0000001 AS lat1,cn1.longitude*0.0000001 AS lon1,"+
" cn2.latitude*0.0000001 AS lat2,cn2.longitude*0.0000001 AS lon2 "+
" FROM current_segments "+
" LEFT OUTER JOIN current_way_nodes"+
" ON segment_id=current_segments.id,"+
" current_nodes AS cn1,current_nodes AS cn2"+
" WHERE "+OSM.sql_for_area(ymin,xmin,ymax,xmax,"cn1.")+
" AND segment_id IS NULL"+
" AND current_segments.visible=1"+
" AND cn1.id=node_a AND cn1.visible=1"+
" AND cn2.id=node_b AND cn2.visible=1"
seglist=ActiveRecord::Base.connection.select_all sql
seglist.each do |row|
xs1=(long2coord(row['lon1'].to_f,baselong,masterscale)*20).floor; ys1=(lat2coord(row['lat1'].to_f,basey,masterscale)*20).floor
xs2=(long2coord(row['lon2'].to_f,baselong,masterscale)*20).floor; ys2=(lat2coord(row['lat2'].to_f,basey,masterscale)*20).floor
if (xs1==absx and ys1==absy)
b+=drawTo(absx,absy,xs2,ys2)
absx=xs2; absy=ys2
elsif (xs2==absx and ys2==absy)
b+=drawTo(absx,absy,xs1,ys1)
absx=xs1; absy=ys1
else
b+=startAndMove(xs1,ys1,'10')
b+=drawTo(xs1,ys1,xs2,ys2)
absx=xs2; absy=ys2
end
while b.length>80 do
r+=[b.slice!(0...80)].pack("B*")
end
end
end
# (Unwayed segments removed)
# - Write shape

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