ó ú£Õ\c@s‘dZddlZddlZddlZddlZd„Zd„Zed„Z dd d„ƒYZ dd d „ƒYZ d dd „ƒYZ dS(sU Read graphs in Open Street Maps osm format Based on osm.py from brianw's osmgeocode http://github.com/brianw/osmgeocode, which is based on osm.py from comes from Graphserver: http://github.com/bmander/graphserver/tree/master and is copyright (c) 2007, Brandon Martin-Anderson under the BSD License 2012, edits for PRISM by Clemen Wiltsche iÿÿÿÿNc Cs€d}|j|jtjd}|j|jtjd}|jtjd}|jtjd}tj|dƒtj|dƒtj|dƒtj|dƒtj|ƒtj|ƒ}dtjtj|ƒtjd|ƒƒ}||} tj|ƒtj|ƒ} tj|ƒtj|ƒtj|ƒtj|ƒtj|ƒ} tj| | ƒdtj} | | fS(NiÁ6ai´ii(tlattmathtpitlontsintcostatan2tsqrt( tnode1tnode2tRtdLattdLontlat1tlat2tatctdistancetytxtbearing((sA/Users/dxp/prism/prism-games/prism-examples/smgs/car/osm2graph.pytcalculateDistanceAndBearings`, CcCs0ddlm}|d||||fƒ}|S(s, Return a filehandle to the downloaded data.iÿÿÿÿ(turlopens9http://api.openstreetmap.org/api/0.5/map?bbox=%f,%f,%f,%f(turllibR(tlefttbottomtrightttopRtfp((sA/Users/dxp/prism/prism-games/prism-examples/smgs/car/osm2graph.pyt download_osm)scCsªt|ƒ}tjƒ}xQ|jjƒD]@}|rId|jkrIq(n|j|jd|jd|ƒq(Wx7|j ƒD])}|j |}t d|ƒ|j |>> G=nx.read_osm(nx.download_osm(-122.33,47.60,-122.31,47.61)) >>> plot([G.node[n]['data'].lat for n in G], [G.node[n]['data'].lon for n in G], ',') thighwaytidtdata( tOSMtnetworkxtDiGraphtwayst itervaluesttagstadd_pathtndsRt nodes_itertnodestdicttnode(tfilename_or_streamt only_roadstosmtGtwtn_idtn((sA/Users/dxp/prism/prism-games/prism-examples/smgs/car/osm2graph.pytread_osm/s  # tNodecBseZd„ZRS(cCs(||_||_||_i|_dS(N(RRRR&(tselfRRR((sA/Users/dxp/prism/prism-games/prism-examples/smgs/car/osm2graph.pyt__init__Ns   (t__name__t __module__R7(((sA/Users/dxp/prism/prism-games/prism-examples/smgs/car/osm2graph.pyR5MstWaycBseZd„Zd„ZRS(cCs(||_||_g|_i|_dS(N(R/RR(R&(R6RR/((sA/Users/dxp/prism/prism-games/prism-examples/smgs/car/osm2graph.pyR7Us   cs„‡fd†‰ˆ|j|ƒ}g}d}xP|D]H}tj|ƒ}|jd|7_||_|j|ƒ|d7}q4W|S(Ncsqxgtdt|ƒdƒD]L}|||dkr||d }||}ˆ||ƒ}|g|SqW|gS(Ni(trangetlen(tartdividerstiRRt rightsliced(t slice_array(sA/Users/dxp/prism/prism-games/prism-examples/smgs/car/osm2graph.pyRA]s  is-%di(R(tcopyRtappend(R6R>tslicestretR?tslicet littleway((RAsA/Users/dxp/prism/prism-games/prism-examples/smgs/car/osm2graph.pytsplit[s    (R8R9R7RH(((sA/Users/dxp/prism/prism-games/prism-examples/smgs/car/osm2graph.pyR:Ts R!cBseZd„ZRS(c s=i‰i‰|‰dtjjf‡‡‡fd†ƒY}tjj||ƒˆ|_ˆ|_tj|jjƒdƒ}x`|jj ƒD]O}t |j ƒdkrµ|j|j =qŠx!|j D]}||cd7 s       %N