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voronoi-look.py
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voronoi-look.py
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from math import pi
from time import sleep
from subprocess import Popen, PIPE
from networkx import Graph
from shapely.wkt import loads
from shapely.geometry import Point, LineString
from cairo import Context, ImageSurface, FORMAT_RGB24
# select ST_AsText(ST_Segmentize(ST_Union(ST_Buffer(way, 20, 4)), 20)) from remirrorosm_line where osm_id in (27808429, 27808433, 22942318);
wkt = 'POLYGON((-13610694.9959215 4552437.939579,-13610675.1772861 4552435.25225831,-13610655.3586508 4552432.56493762,-13610635.5400154 4552429.87761693,-13610626.9926793 4552428.71863536,-13610625.8584033 4552428.53148997,-13610606.2269133 4552424.70989326,-13610592.1084033 4552421.96148997,-13610590.2349216 4552421.50201298,-13610571.0629086 4552415.80693456,-13610551.8908956 4552410.11185613,-13610532.7188826 4552404.41677771,-13610513.5468697 4552398.72169929,-13610494.3748567 4552393.02662086,-13610475.2028437 4552387.33154244,-13610456.0308307 4552381.63646402,-13610451.6875002 4552380.34627046,-13610441.4120953 4552378.64053685,-13610430.0615582 4552377.95345833,-13610420.2417295 4552374.67464117,-13610413.376917 4552366.92518788,-13610411.4825354 4552357.64382477,-13610405.9655652 4552356.58193289,-13610398.1397912 4552349.80425356,-13610394.7513117 4552340.02172404,-13610396.7080671 4552329.85556522,-13610403.4857464 4552322.02979115,-13610413.268276 4552318.64131167,-13610423.718276 4552317.89131167,-13610427.105426 4552317.93582182,-13610436.775426 4552318.88582182,-13610439.7960081 4552319.41890443,-13610459.1671037 4552324.39491254,-13610473.2360081 4552328.00890443,-13610474.0340953 4552328.23163654,-13610493.1824588 4552334.00573185,-13610512.3308222 4552339.77982716,-13610531.4791857 4552345.55392247,-13610534.1152806 4552346.34882401,-13610553.3280304 4552351.90492409,-13610572.5407801 4552357.46102418,-13610587.4661001 4552361.77725028,-13610589.0433615 4552362.30537655,-13610602.2021246 4552367.32909108,-13610612.0242197 4552370.93361464,-13610631.2349911 4552376.49655111,-13610637.6329365 4552378.3492286,-13610637.9662497 4552378.44889749,-13610657.0773522 4552384.3451472,-13610676.1884547 4552390.24139692,-13610695.2995573 4552396.13764663,-13610705.4162497 4552399.25889749,-13610705.5940903 4552399.37065701,-13610705.8037811 4552399.38279127,-13610724.7909898 4552405.66657233,-13610733.7537811 4552408.63279127,-13610736.292745 4552409.671207,-13610754.241538 4552418.49395204,-13610772.190331 4552427.31669708,-13610790.139124 4552436.13944211,-13610808.087917 4552444.96218715,-13610826.03671 4552453.78493219,-13610842.812745 4552462.031207,-13610843.0857015 4552462.16797557,-13610860.8977259 4552471.26367707,-13610878.7097504 4552480.35937856,-13610896.5217748 4552489.45508006,-13610914.3337992 4552498.55078155,-13610932.1458237 4552507.64648305,-13610949.9578481 4552516.74218454,-13610967.7698725 4552525.83788604,-13610975.6599536 4552529.86695206,-13610993.0236957 4552538.01869887,-13611012.6842843 4552541.68765773,-13611032.3448728 4552545.35661659,-13611052.0054613 4552549.02557545,-13611071.6660498 4552552.69453431,-13611091.3266383 4552556.36349317,-13611110.9872269 4552560.03245204,-13611130.6478154 4552563.7014109,-13611150.3084039 4552567.37036976,-13611169.9689924 4552571.03932862,-13611173.3989589 4552571.67941148,-13611173.6954182 4552571.73705485,-13611193.2983633 4552575.70247304,-13611212.9013085 4552579.66789123,-13611232.5042536 4552583.63330942,-13611252.1071988 4552587.59872761,-13611271.7101439 4552591.56414581,-13611291.3130891 4552595.529564,-13611310.9160342 4552599.49498219,-13611330.5189794 4552603.46040038,-13611350.1219245 4552607.42581857,-13611363.4754182 4552610.12705485,-13611367.5306699 4552611.40873218,-13611383.2006699 4552618.26873218,-13611383.748143 4552618.51828381,-13611399.9060625 4552626.17905955,-13611404.5411741 4552627.22558359,-13611412.2295174 4552623.93943686,-13611422.4779039 4552622.47306381,-13611432.0864536 4552626.32734078,-13611438.4805631 4552634.46951737,-13611439.9469362 4552644.71790393,-13611436.0926592 4552654.32645356,-13611427.9504826 4552660.72056314,-13611414.3104826 4552666.55056314,-13611402.0452393 4552667.66892317,-13611388.9352393 4552664.70892317,-13611384.771857 4552663.27171619,-13611366.8837165 4552654.79060992,-13611353.4484308 4552648.90892135,-13611333.8454857 4552644.94350316,-13611314.2425405 4552640.97808497,-13611294.6395954 4552637.01266678,-13611275.0366502 4552633.04724859,-13611255.4337051 4552629.0818304,-13611235.8307599 4552625.1164122,-13611216.2278148 4552621.15099401,-13611196.6248696 4552617.18557582,-13611177.0219245 4552613.22015763,-13611165.9125938 4552610.97288603,-13611146.2520053 4552607.30392717,-13611126.5914168 4552603.63496831,-13611106.9308283 4552599.96600945,-13611087.2702397 4552596.29705059,-13611067.6096512 4552592.62809173,-13611047.9490627 4552588.95913287,-13611028.2884742 4552585.290174,-13611008.6278857 4552581.62121514,-13610988.9672971 4552577.95225628,-13610983.1710411 4552576.87058852,-13610978.340645 4552575.31416981,-13610960.2364752 4552566.81481482,-13610958.360645 4552565.93416981,-13610957.7642985 4552565.64202443,-13610939.9522741 4552556.54632294,-13610922.1402496 4552547.45062144,-13610904.3282252 4552538.35491994,-13610886.5162008 4552529.25921845,-13610868.7041763 4552520.16351696,-13610850.8921519 4552511.06781546,-13610833.0801275 4552501.97211397,-13610825.0302547 4552497.86145042,-13610807.0814618 4552489.03870538,-13610789.1326688 4552480.21596035,-13610771.1838758 4552471.39321531,-13610753.2350828 4552462.57047027,-13610735.2862898 4552453.74772524,-13610719.8810468 4552446.17526448,-13610700.8938381 4552439.89148342,-13610694.9959215 4552437.939579))'
# select ST_AsText(ST_Segmentize(ST_Union(ST_Buffer(way, 10, 3)), 5)) from remirrorosm_line where osm_id in (22942317, 22942316);
wkt = 'POLYGON((-13610265.0824382 4552448.50997286,-13610263.3110593 4552451.25361468,-13610258.8620834 4552453.53541511,-13610258.7051405 4552453.61590831,-13610253.7113141 4552453.36751749,-13610253.535151 4552453.35875521,-13610249.3345659 4552450.64672925,-13610249.1863853 4552450.55105934,-13610246.9045849 4552446.10208341,-13610246.8240917 4552445.94514053,-13610247.0724825 4552440.95131414,-13610247.0812448 4552440.77515102,-13610248.6136693 4552436.01577342,-13610250.1460938 4552431.25639581,-13610251.6785183 4552426.49701821,-13610253.2109427 4552421.7376406,-13610254.7433672 4552416.978263,-13610256.2757917 4552412.21888539,-13610257.8082162 4552407.45950779,-13610259.3406407 4552402.70013018,-13610260.8730652 4552397.94075258,-13610261.1967278 4552396.9355268,-13610262.5275078 4552392.11587694,-13610263.8582877 4552387.29622709,-13610265.1890677 4552382.47657724,-13610266.4007003 4552378.08844008,-13610266.4173412 4552378.02889051,-13610267.7778959 4552373.21756109,-13610269.1384506 4552368.40623167,-13610270.4990054 4552363.59490225,-13610271.8595601 4552358.78357283,-13610273.2201149 4552353.97224341,-13610274.5806696 4552349.16091399,-13610275.9412244 4552344.34958457,-13610277.3017791 4552339.53825515,-13610278.6623338 4552334.72692573,-13610279.1738364 4552332.91809926,-13610280.3442039 4552328.05700473,-13610281.5145713 4552323.1959102,-13610282.6849388 4552318.33481567,-13610283.2041525 4552316.1782734,-13610283.9823919 4552311.23921039,-13610284.7606314 4552306.30014739,-13610285.5388708 4552301.36108439,-13610285.5924503 4552301.02104457,-13610285.7999127 4552296.02535048,-13610286.0073751 4552291.0296564,-13610286.2148375 4552286.03396232,-13610286.2933058 4552284.14444567,-13610285.8921183 4552279.1605668,-13610285.4909309 4552274.17668792,-13610285.0897434 4552269.19280905,-13610284.8957189 4552266.78247762,-13610283.9583587 4552261.87112792,-13610283.0209985 4552256.95977823,-13610282.0836383 4552252.04842853,-13610281.4516401 4552248.73703972,-13610280.2831386 4552243.87549633,-13610279.1146371 4552239.01395293,-13610277.9461355 4552234.15240954,-13610276.777634 4552229.29086614,-13610275.8369132 4552225.37700306,-13610275.780024 4552225.12616149,-13610274.7369433 4552220.2361735,-13610273.6938625 4552215.34618551,-13610272.6507818 4552210.45619751,-13610271.607701 4552205.56620952,-13610270.5646203 4552200.67622153,-13610269.5215395 4552195.78623354,-13610268.4784588 4552190.89624554,-13610267.4353781 4552186.00625755,-13610266.3922973 4552181.11626956,-13610265.3492166 4552176.22628157,-13610264.3061358 4552171.33629358,-13610263.2630551 4552166.44630558,-13610262.7596781 4552164.0864621,-13610261.3009174 4552159.30399231,-13610259.8421567 4552154.52152252,-13610258.383396 4552149.73905274,-13610256.9246354 4552144.95658295,-13610255.4658747 4552140.17411317,-13610255.4150604 4552140.00752138,-13610255.384457 4552139.11457027,-13610255.0517026 4552138.28537024,-13610255.2971803 4552136.56799271,-13610255.2377587 4552134.83417785,-13610255.6577309 4552134.04555781,-13610255.7841571 4552133.16107228,-13610256.8554358 4552131.79651856,-13610257.6708826 4552130.26528004,-13610258.4288992 4552129.79230118,-13610258.9806303 4552129.08952732,-13610260.5906617 4552128.44342849,-13610262.0624786 4552127.52506043,-13610262.9554297 4552127.49445705,-13610263.7846298 4552127.16170256,-13610265.5020073 4552127.40718027,-13610267.2358222 4552127.34775866,-13610268.0244422 4552127.7677309,-13610268.9089277 4552127.89415708,-13610270.2734814 4552128.96543578,-13610271.80472 4552129.78088258,-13610272.2776988 4552130.53889924,-13610272.9804727 4552131.09063029,-13610275.9801575 4552135.09086663,-13610278.9798424 4552139.09110296,-13610281.9795272 4552143.0913393,-13610284.9792121 4552147.09157564,-13610287.978897 4552151.09181198,-13610288.2104727 4552151.40063029,-13610288.7104838 4552152.13295383,-13610291.3440069 4552156.38319572,-13610293.97753 4552160.63343761,-13610296.4804838 4552164.67295383,-13610296.8544499 4552165.3308636,-13610299.1590181 4552169.76808857,-13610301.4635863 4552174.20531354,-13610303.7681545 4552178.64253851,-13610306.0727227 4552183.07976348,-13610308.3772909 4552187.51698845,-13610310.6818591 4552191.95421341,-13610312.9864273 4552196.39143838,-13610315.2909955 4552200.82866335,-13610317.5955637 4552205.26588832,-13610319.9001319 4552209.70311329,-13610320.9844499 4552211.7908636,-13610321.1167911 4552212.05515094,-13610323.2892157 4552216.55854651,-13610325.4616402 4552221.06194208,-13610327.5567911 4552225.40515094,-13610328.1140391 4552226.82952825,-13610329.574275 4552231.61154782,-13610331.0345109 4552236.39356739,-13610332.4440391 4552241.00952824,-13610332.6472805 4552241.78518494,-13610333.719688 4552246.66882518,-13610334.7920956 4552251.55246543,-13610335.3372805 4552254.03518494,-13610335.5571499 4552255.67320958,-13610335.8105451 4552260.66678454,-13610336.0639403 4552265.66035949,-13610336.3071499 4552270.45320958,-13610336.2816482 4552271.83496585,-13610335.8441653 4552276.81578994,-13610335.4066823 4552281.79661404,-13610334.9691994 4552286.77743814,-13610334.9316482 4552287.20496585,-13610334.8101327 4552288.11095177,-13610333.9196568 4552293.0310181,-13610333.0291809 4552297.95108443,-13610332.4301327 4552301.26095177,-13610332.1995327 4552302.24710706,-13610330.8159792 4552307.05187341,-13610329.4324256 4552311.85663975,-13610328.1595327 4552316.27710706,-13610327.9950989 4552316.79482968,-13610326.3526841 4552321.51737915,-13610324.7102693 4552326.23992862,-13610323.0678544 4552330.96247809,-13610321.4254396 4552335.68502756,-13610319.7830247 4552340.40757703,-13610318.1406099 4552345.1301265,-13610316.4981951 4552349.85267597,-13610314.8557802 4552354.57522543,-13610313.2133654 4552359.2977749,-13610311.5709505 4552364.02032437,-13610309.9285357 4552368.74287384,-13610308.2861209 4552373.46542331,-13610307.7971518 4552374.87138996,-13610306.4510612 4552379.68678612,-13610305.1049707 4552384.50218228,-13610304.0007923 4552388.45218114,-13610303.9420838 4552388.65399572,-13610302.495086 4552393.44003763,-13610301.0480881 4552398.22607955,-13610299.6010902 4552403.01212146,-13610298.1540924 4552407.79816337,-13610296.7070945 4552412.58420529,-13610295.2600967 4552417.3702472,-13610293.8130988 4552422.15628911,-13610292.3661009 4552426.94233103,-13610290.9191031 4552431.72837294,-13610289.4721052 4552436.51441485,-13610288.0251074 4552441.30045677,-13610286.5781095 4552446.08649868,-13610285.6088636 4552449.29234416,-13610284.283965 4552454.11361409,-13610282.9590664 4552458.93488402,-13610281.6341678 4552463.75615395,-13610280.3092693 4552468.57742388,-13610279.0593973 4552473.12567391,-13610277.8691087 4552477.98192894,-13610276.67882 4552482.83818397,-13610275.4885313 4552487.69443899,-13610274.2982427 4552492.55069402,-13610273.107954 4552497.40694905,-13610271.9176653 4552502.26320408,-13610271.3325101 4552504.65057732,-13610268.9258882 4552509.0332901,-13610268.8409918 4552509.18789547,-13610264.5654397 4552511.78012514,-13610264.4146146 4552511.87156911,-13610259.4157631 4552511.97872983,-13610259.2394227 4552511.98251006,-13610254.8567099 4552509.57588821,-13610254.7021045 4552509.49099178,-13610252.1098749 4552505.21543973,-13610252.0184309 4552505.06461459,-13610251.9112702 4552500.06576306,-13610251.9074899 4552499.88942268,-13610253.0977786 4552495.03316765,-13610254.2880673 4552490.17691262,-13610255.4783559 4552485.32065759,-13610256.6686446 4552480.46440256,-13610257.8589333 4552475.60814753,-13610259.0492219 4552470.75189251,-13610259.6674899 4552468.22942268,-13610259.7374601 4552467.96020283,-13610261.0623587 4552463.1389329,-13610262.3872573 4552458.31766297,-13610263.7121559 4552453.49639304,-13610265.0370545 4552448.67512311,-13610265.0824382 4552448.50997286),(-13610289.8571841 4552195.25037617,-13610290.9002648 4552200.14036417,-13610291.9433456 4552205.03035216,-13610292.9864263 4552209.92034015,-13610294.029507 4552214.81032814,-13610295.0725878 4552219.70031613,-13610295.3131445 4552220.82805192,-13610296.481646 4552225.68959531,-13610297.6501476 4552230.55113871,-13610298.8186491 4552235.4126821,-13610299.9871506 4552240.2742255,-13610300.9530868 4552244.29299694,-13610301.0526994 4552244.75527959,-13610301.9900596 4552249.66662929,-13610302.9274198 4552254.57797899,-13610303.86478 4552259.48932869,-13610304.6426994 4552263.56527959,-13610304.7877578 4552264.63762512,-13610305.1889452 4552269.62150399,-13610305.5901326 4552274.60538287,-13610305.9913201 4552279.58926174,-13610306.2777578 4552283.14762512,-13610306.3013882 4552284.36492476,-13610306.0939258 4552289.36061884,-13610305.8864634 4552294.35631292,-13610305.679001 4552299.352007,-13610305.5513882 4552302.42492476,-13610305.438126 4552303.56647891,-13610304.6598866 4552308.50554192,-13610303.8816471 4552313.44460492,-13610303.1034076 4552318.38366792,-13610302.898126 4552319.68647891,-13610302.7421891 4552320.4707349,-13610301.5718216 4552325.33182943,-13610300.4014542 4552330.19292396,-13610299.2310867 4552335.05401849,-13610298.5721891 4552337.7907349,-13610298.4726588 4552338.17110949,-13610297.1121041 4552342.98243891,-13610295.7515494 4552347.79376833,-13610294.4999474 4552352.21980797,-13610296.1423623 4552347.4972585,-13610297.7847771 4552342.77470904,-13610299.4271919 4552338.05215957,-13610301.0696068 4552333.3296101,-13610302.7120216 4552328.60706063,-13610304.3544365 4552323.88451116,-13610305.9968513 4552319.16196169,-13610307.6392661 4552314.43941222,-13610309.0156508 4552310.48179777,-13610310.3992043 4552305.67703142,-13610311.7827579 4552300.87226508,-13610312.8401668 4552297.20012453,-13610313.7306427 4552292.2800582,-13610314.6211186 4552287.35999187,-13610315.0483839 4552284.99926137,-13610315.4858668 4552280.01843727,-13610315.9233497 4552275.03761318,-13610316.2977472 4552270.77502909,-13610316.044352 4552265.78145413,-13610315.7909568 4552260.78787917,-13610315.6248728 4552257.51491846,-13610314.5524653 4552252.63127821,-13610313.4800578 4552247.74763796,-13610313.1987788 4552246.46672087,-13610311.7385429 4552241.6847013,-13610310.2783071 4552236.90268173,-13610309.2099602 4552233.40403079,-13610307.0375357 4552228.90063522,-13610304.8651111 4552224.39723965,-13610303.1674263 4552220.87797072,-13610300.8628581 4552216.44074575,-13610298.55829 4552212.00352078,-13610296.2537218 4552207.56629581,-13610293.9491536 4552203.12907084,-13610291.6445854 4552198.69184587,-13610289.8571841 4552195.25037617))'
# select ST_AsText(ST_Segmentize(ST_Union(ST_Buffer(way, 15, 3)), 5)) from remirrorosm_line where osm_id in (27808433, 22942315, 20161650, 22942318, 22942317, 22942316, 6385475, 22942319);
wkt = 'POLYGON((-13610242.3145726 4552439.38938136,-13610242.3218672 4552439.24272654,-13610243.8542917 4552434.48334893,-13610245.3867162 4552429.72397133,-13610246.9191406 4552424.96459372,-13610248.4515651 4552420.20521612,-13610249.9839896 4552415.44583851,-13610251.5164141 4552410.6864609,-13610253.0488386 4552405.9270833,-13610254.5812631 4552401.16770569,-13610256.1136876 4552396.40832809,-13610256.4050917 4552395.50329018,-13610257.7358717 4552390.68364032,-13610259.0666516 4552385.86399047,-13610260.3974316 4552381.04434062,-13610261.5810504 4552376.75766012,-13610261.6060117 4552376.66833577,-13610262.9665665 4552371.85700635,-13610264.3271212 4552367.04567693,-13610265.687676 4552362.23434751,-13610267.0482307 4552357.42301809,-13610268.4087855 4552352.61168867,-13610269.7693402 4552347.80035925,-13610271.1298949 4552342.98902982,-13610272.4904497 4552338.1777004,-13610273.8510044 4552333.36637098,-13610274.3357546 4552331.65214893,-13610275.5061221 4552326.7910544,-13610276.6764895 4552321.92995987,-13610277.846857 4552317.06886534,-13610278.2962287 4552315.20241009,-13610279.0744682 4552310.26334709,-13610279.8527076 4552305.32428409,-13610280.6086755 4552300.52656685,-13610280.8161379 4552295.53087277,-13610281.0236002 4552290.53517869,-13610281.2310626 4552285.5394846,-13610281.2849586 4552284.24166849,-13610280.8837712 4552279.25778962,-13610280.4825838 4552274.27391074,-13610280.0813963 4552269.29003187,-13610279.9335784 4552267.45371646,-13610278.9962182 4552262.54236677,-13610278.058858 4552257.63101707,-13610277.1214978 4552252.71966737,-13610276.5624602 4552249.79055955,-13610275.3939587 4552244.92901615,-13610274.2254571 4552240.06747276,-13610273.0569556 4552235.20592937,-13610271.8884541 4552230.34438597,-13610270.9753698 4552226.54550458,-13610270.890036 4552226.16924223,-13610269.8469553 4552221.27925424,-13610268.8038745 4552216.38926625,-13610267.7607938 4552211.49927826,-13610266.717713 4552206.60929027,-13610265.6746323 4552201.71930227,-13610264.6315516 4552196.82931428,-13610263.5884708 4552191.93932629,-13610262.5453901 4552187.0493383,-13610261.5023093 4552182.15935031,-13610260.4592286 4552177.26936231,-13610259.4161478 4552172.37937432,-13610258.3730671 4552167.48938633,-13610257.9145172 4552165.33969315,-13610256.4557565 4552160.55722336,-13610254.9969958 4552155.77475358,-13610253.5382351 4552150.99228379,-13610252.0794744 4552146.20981401,-13610250.6325906 4552141.46628207,-13610250.5866856 4552140.12685541,-13610250.0875538 4552138.88305536,-13610250.4557704 4552136.30698906,-13610250.366638 4552133.70626677,-13610250.9965964 4552132.52333672,-13610251.1862356 4552131.19660841,-13610252.7931537 4552129.14977784,-13610254.0163239 4552126.85292005,-13610255.1533489 4552126.14345176,-13610255.9809454 4552125.08929098,-13610258.3959926 4552124.12014274,-13610260.6037179 4552122.74259064,-13610261.9431446 4552122.69668557,-13610263.1869446 4552122.19755385,-13610265.7630109 4552122.56577041,-13610268.3637332 4552122.47663798,-13610269.5466633 4552123.10659635,-13610270.8733916 4552123.29623563,-13610272.9202222 4552124.90315368,-13610275.2170799 4552126.12632388,-13610275.9265482 4552127.26334885,-13610276.980709 4552128.09094543,-13610279.9803939 4552132.09118177,-13610282.9800787 4552136.09141811,-13610285.9797636 4552140.09165445,-13610288.9794484 4552144.09189078,-13610291.9791333 4552148.09212712,-13610292.210709 4552148.40094543,-13610292.9607257 4552149.49943074,-13610295.5942488 4552153.74967263,-13610298.2277719 4552157.99991453,-13610300.7307257 4552162.03943074,-13610301.2916749 4552163.02629541,-13610303.5962431 4552167.46352037,-13610305.9008113 4552171.90074534,-13610308.2053795 4552176.33797031,-13610310.5099477 4552180.77519528,-13610312.8145159 4552185.21242025,-13610315.1190841 4552189.64964522,-13610317.4236523 4552194.08687018,-13610319.7282205 4552198.52409515,-13610322.0327887 4552202.96132012,-13610324.3373569 4552207.39854509,-13610325.4216749 4552209.48629541,-13610325.6201867 4552209.88272641,-13610327.7926112 4552214.38612198,-13610329.9650358 4552218.88951755,-13610332.0601867 4552223.23272641,-13610332.1476539 4552223.45630049,-13610332.1884762 4552223.50564516,-13610334.2699278 4552228.05180389,-13610336.3513794 4552232.59796262,-13610338.432831 4552237.14412135,-13610340.5142826 4552241.69028008,-13610342.5957342 4552246.23643881,-13610344.6771859 4552250.78259754,-13610346.7586375 4552255.32875626,-13610347.987423 4552258.0125823,-13610350.5378974 4552262.313173,-13610353.0883718 4552266.61376371,-13610354.2049928 4552268.4966016,-13610357.3410778 4552272.39082433,-13610360.4771628 4552276.28504706,-13610362.1777291 4552278.39671936,-13610365.8875782 4552281.74888578,-13610369.5974273 4552285.10105221,-13610373.1172401 4552288.2815046,-13610377.2327898 4552291.12091486,-13610381.3483395 4552293.96032512,-13610385.4638892 4552296.79973538,-13610389.5794389 4552299.63914564,-13610393.6949886 4552302.47855591,-13610397.8105383 4552305.31796617,-13610401.926088 4552308.15737643,-13610403.7596983 4552309.42242534,-13610408.2067145 4552311.70804264,-13610412.6537308 4552313.99365993,-13610413.0779098 4552314.21167373,-13610417.7005244 4552316.11730602,-13610422.3231389 4552318.02293832,-13610423.3909309 4552318.46312619,-13610428.0706429 4552320.22389199,-13610432.7503548 4552321.98465779,-13610437.4300667 4552323.7454236,-13610439.3404252 4552324.46420586,-13610444.1831991 4552325.70820788,-13610449.025973 4552326.95220991,-13610453.8687469 4552328.19621194,-13610458.7115208 4552329.44021396,-13610463.5542947 4552330.68421599,-13610468.3970686 4552331.92821801,-13610471.9920061 4552332.85167833,-13610472.5905715 4552333.0187274,-13610477.3776623 4552334.46225123,-13610482.1647532 4552335.90577506,-13610486.9518441 4552337.34929889,-13610491.7389349 4552338.79282271,-13610496.5260258 4552340.23634654,-13610501.3131167 4552341.67987037,-13610506.1002075 4552343.1233942,-13610510.8872984 4552344.56691803,-13610515.6743893 4552346.01044185,-13610520.4614801 4552347.45396568,-13610525.248571 4552348.89748951,-13610530.0356619 4552350.34101334,-13610532.6989605 4552351.144118,-13610537.5021479 4552352.53314302,-13610542.3053353 4552353.92216804,-13610547.1085227 4552355.31119306,-13610551.9117102 4552356.70021808,-13610556.7148976 4552358.0892431,-13610561.518085 4552359.47826813,-13610566.3212725 4552360.86729315,-13610571.1244599 4552362.25631817,-13610575.9276473 4552363.64534319,-13610580.7308348 4552365.03436821,-13610585.5340222 4552366.42339323,-13610586.0770751 4552366.58043771,-13610587.2600211 4552366.97653241,-13610591.931177 4552368.75987279,-13610596.6023329 4552370.54321317,-13610600.4490934 4552372.0118183,-13610605.1429978 4552373.73439262,-13610609.8369021 4552375.45696694,-13610610.4656648 4552375.68771098,-13610615.2683576 4552377.0784451,-13610620.0710505 4552378.46917922,-13610624.8737433 4552379.85991333,-13610629.6764362 4552381.25064745,-13610634.479129 4552382.64138157,-13610636.2422024 4552383.15192145,-13610636.4921873 4552383.22667311,-13610641.2699629 4552384.70073554,-13610646.0477385 4552386.17479797,-13610650.8255142 4552387.6488604,-13610655.6032898 4552389.12292283,-13610660.3810654 4552390.59698526,-13610665.1588411 4552392.07104769,-13610669.9366167 4552393.54511012,-13610674.7143923 4552395.01917254,-13610679.4921679 4552396.49323497,-13610684.2699436 4552397.9672974,-13610689.0477192 4552399.44135983,-13610693.8254948 4552400.91542226,-13610698.6032705 4552402.38948469,-13610703.3810461 4552403.86354712,-13610703.9421873 4552404.03667311,-13610706.2180835 4552405.46690387,-13610708.6974542 4552406.50516399,-13610709.456004 4552407.50169506,-13610710.51639 4552408.16806844,-13610711.7722585 4552410.5446327,-13610713.4003265 4552412.68347773,-13610713.5589843 4552413.92577383,-13610714.1441188 4552415.03306309,-13610714.0434508 4552417.71916238,-13610714.3839765 4552420.38549052,-13610713.9002302 4552421.54067941,-13610713.8533269 4552422.79218729,-13610712.4230961 4552425.06808348,-13610711.384836 4552427.54745425,-13610710.3883049 4552428.306004,-13610709.7219316 4552429.36638997,-13610707.3453673 4552430.62225851,-13610705.2065223 4552432.25032653,-13610703.9642262 4552432.40898434,-13610702.8569369 4552432.99411885,-13610700.1708376 4552432.89345077,-13610697.5045095 4552433.23397652,-13610692.5498506 4552432.56214635,-13610687.5951918 4552431.89031618,-13610682.640533 4552431.218486,-13610677.6858741 4552430.54665583,-13610672.7312153 4552429.87482566,-13610667.7765564 4552429.20299549,-13610662.8218976 4552428.53116532,-13610657.8672388 4552427.85933514,-13610652.9125799 4552427.18750497,-13610647.9579211 4552426.5156748,-13610643.0032622 4552425.84384463,-13610638.0486034 4552425.17201446,-13610633.0939446 4552424.50018428,-13610628.1392857 4552423.82835411,-13610627.6645095 4552423.76397652,-13610626.8138025 4552423.62361748,-13610621.90593 4552422.6682183,-13610616.9980575 4552421.71281912,-13610612.090185 4552420.75741994,-13610607.1823125 4552419.80202076,-13610602.27444 4552418.84662159,-13610597.3665675 4552417.89122241,-13610593.0638025 4552417.05361748,-13610591.6586912 4552416.70900974,-13610586.8656879 4552415.28524013,-13610582.0726847 4552413.86147053,-13610577.2796814 4552412.43770092,-13610572.4866782 4552411.01393131,-13610567.693675 4552409.59016171,-13610562.9006717 4552408.1663921,-13610558.1076685 4552406.74262249,-13610553.3146652 4552405.31885289,-13610548.521662 4552403.89508328,-13610543.7286587 4552402.47131368,-13610538.9356555 4552401.04754407,-13610534.1426522 4552399.62377446,-13610529.349649 4552398.20000486,-13610524.5566457 4552396.77623525,-13610519.7636425 4552395.35246565,-13610514.9706392 4552393.92869604,-13610510.177636 4552392.50492643,-13610505.3846328 4552391.08115683,-13610500.5916295 4552389.65738722,-13610495.7986263 4552388.23361762,-13610491.005623 4552386.80984801,-13610486.2126198 4552385.3860784,-13610481.4196165 4552383.9623088,-13610476.6266133 4552382.53853919,-13610471.83361 4552381.11476959,-13610467.0406068 4552379.69099998,-13610462.2476035 4552378.26723037,-13610457.4546003 4552376.84346077,-13610452.8131252 4552375.46470285,-13610447.8806246 4552374.64589988,-13610442.9481241 4552373.82709692,-13610441.9740715 4552373.66540264,-13610436.9832069 4552373.36329219,-13610431.9923423 4552373.06118174,-13610431.8852033 4552373.05469633,-13610426.9355912 4552373.76275017,-13610421.9859791 4552374.47080402,-13610417.0363671 4552375.17885787,-13610412.1119607 4552375.88330597,-13610407.2458885 4552377.03280221,-13610402.3798164 4552378.18229845,-13610397.5137442 4552379.33179469,-13610392.647672 4552380.48129094,-13610388.5251096 4552381.45515032,-13610383.8579601 4552383.24894959,-13610379.1908106 4552385.04274886,-13610374.5236612 4552386.83654813,-13610369.8565117 4552388.6303474,-13610365.1893622 4552390.42414667,-13610364.8447282 4552390.5566053,-13610360.4984861 4552393.02848295,-13610356.1522439 4552395.5003606,-13610351.8060018 4552397.97223826,-13610347.4597596 4552400.44411591,-13610344.211609 4552402.291466,-13610340.402309 4552405.53017463,-13610336.5930091 4552408.76888327,-13610332.7837091 4552412.00759191,-13610328.9744091 4552415.24630054,-13610327.568395 4552416.44170917,-13610324.5439746 4552420.4232769,-13610321.5195543 4552424.40484462,-13610318.4951339 4552428.38641235,-13610315.4707136 4552432.36798008,-13610314.4698927 4552433.68553372,-13610311.9439967 4552438.00060607,-13610309.4181007 4552442.31567841,-13610306.8922047 4552446.63075076,-13610304.3663087 4552450.94582311,-13610303.0812373 4552453.14115342,-13610300.7350964 4552457.55653821,-13610298.3889555 4552461.971923,-13610296.0428146 4552466.3873078,-13610293.6966737 4552470.80269259,-13610291.3505328 4552475.21807738,-13610290.8251525 4552476.20683134,-13610288.6551671 4552480.71140274,-13610286.4851818 4552485.21597414,-13610284.3151964 4552489.72054554,-13610282.145211 4552494.22511694,-13610279.9752257 4552498.72968834,-13610277.8052403 4552503.23425973,-13610275.8195163 4552507.35633155,-13610274.6358327 4552512.21420075,-13610273.4521491 4552517.07206995,-13610273.2136076 4552518.05105075,-13610273.1188911 4552518.41940214,-13610271.8124237 4552523.24569917,-13610270.5059563 4552528.0719962,-13610270.2088911 4552529.16940214,-13610270.1892494 4552529.24125383,-13610268.8588314 4552534.06100362,-13610267.5284135 4552538.88075342,-13610266.1979956 4552543.70050322,-13610264.8675776 4552548.52025301,-13610263.5371597 4552553.34000281,-13610262.2067417 4552558.15975261,-13610260.8763238 4552562.9795024,-13610259.5459059 4552567.7992522,-13610258.2154879 4552572.619002,-13610256.88507 4552577.43875179,-13610255.8492494 4552581.19125383,-13610253.3167213 4552585.50243713,-13610251.9164504 4552587.8861519,-13610247.5676251 4552590.35348212,-13610245.1630975 4552591.7177042,-13610240.1632392 4552591.68006219,-13610237.3987462 4552591.65924939,-13610233.0875629 4552589.1267213,-13610230.7038481 4552587.72645038,-13610228.2365179 4552583.37762506,-13610226.8722958 4552580.97309749,-13610226.9053605 4552576.58122847,-13610221.9054939 4552576.5447039,-13610219.9119778 4552576.53014105,-13610215.6002286 4552573.99857655,-13610213.216201 4552572.59883842,-13610210.7478989 4552568.25056465,-13610209.3831394 4552565.84634203,-13610209.419664 4552560.84647543,-13610209.4398589 4552558.08197784,-13610210.7691997 4552553.26193083,-13610212.0985404 4552548.44188381,-13610213.4278811 4552543.62183679,-13610214.7572218 4552538.80178977,-13610216.0865625 4552533.98174275,-13610217.4159033 4552529.16169574,-13610218.745244 4552524.34164872,-13610220.0745847 4552519.5216017,-13610220.6398589 4552517.47197784,-13610220.645939 4552517.44999735,-13610221.9826066 4552512.63197703,-13610223.3192741 4552507.8139567,-13610223.7549809 4552506.24345107,-13610225.0893452 4552501.42479235,-13610226.4237095 4552496.60613362,-13610227.7580738 4552491.7874749,-13610229.0924381 4552486.96881618,-13610230.4268024 4552482.15015746,-13610231.7611667 4552477.33149873,-13610233.095531 4552472.51284001,-13610234.4298953 4552467.69418129,-13610235.7642597 4552462.87552257,-13610237.098624 4552458.05686384,-13610238.4329883 4552453.23820512,-13610239.7673526 4552448.4195464,-13610241.1017169 4552443.60088768,-13610242.1440238 4552439.83690707,-13610242.3145726 4552439.38938136),(-13610333.8162296 4552314.70209972,-13610332.964299 4552317.66066059,-13610332.7176484 4552318.43724452,-13610331.0752336 4552323.15979399,-13610329.4328187 4552327.88234346,-13610327.7904039 4552332.60489293,-13610326.147989 4552337.3274424,-13610324.5055742 4552342.04999187,-13610322.8631594 4552346.77254134,-13610321.2207445 4552351.49509081,-13610320.1075828 4552354.69584211,-13610324.7579749 4552352.8590369,-13610329.408367 4552351.0222317,-13610332.8095844 4552349.67882372,-13610333.1520366 4552349.54837531,-13610337.8459115 4552347.82572083,-13610342.5397864 4552346.10306635,-13610347.2336613 4552344.38041188,-13610351.9275362 4552342.6577574,-13610356.6214111 4552340.93510292,-13610361.315286 4552339.21244844,-13610364.785197 4552337.93898931,-13610360.6665711 4552335.10404294,-13610356.5479453 4552332.26909657,-13610352.4293194 4552329.4341502,-13610348.3106935 4552326.59920383,-13610345.0951609 4552324.38587762,-13610343.7556614 4552323.34764098,-13610339.9831144 4552320.06619478,-13610336.2105674 4552316.78474858,-13610333.8162296 4552314.70209972))'
# select ST_AsText(ST_Segmentize(ST_Union(ST_Buffer(way, 10, 3)), 5)) from remirrorosm_line where osm_id in (27808433, 22942315, 20161650, 22942318, 22942317, 22942316, 6385475, 22942319);
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# bzcat uptown.osm.bz2 | python osm-slurp.py -
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-13610588.0437306314706802 4552030.0294349808245897, -13610583.6911385413259268 4552038.9464721195399761, -13610579.3385464511811733 4552047.8635092582553625, -13610574.9859543610364199 4552056.7805463969707489, -13610570.6333622708916664 4552065.6975835356861353, -13610566.2807701807469130 4552074.6146206744015217, -13610561.9281780906021595 4552083.5316578131169081, -13610557.5755860004574060 4552092.4486949518322945, -13610553.2229939103126526 4552101.3657320905476809, -13610548.8704018201678991 4552110.2827692292630672, -13610544.5178097300231457 4552119.1998063679784536, -13610544.5178097337484360 4552119.1998063679784536))'
polygon = loads(wkt)
img = ImageSurface(FORMAT_RGB24, 900, 900)
ctx = Context(img)
ctx.move_to(0, 0)
ctx.line_to(900, 0)
ctx.line_to(900, 900)
ctx.line_to(0, 900)
ctx.line_to(0, 0)
ctx.set_source_rgb(1, 1, 1)
ctx.fill()
xmin, ymax, xmax, ymin = polygon.bounds
size = max(abs(xmax - xmin), abs(ymax - ymin))
def tx(x):
return 50 + (x - xmin) * 800 / size
def ty(y):
return 50 + (y - ymin) * 800 / -size
for geom in (hasattr(polygon, 'geoms') and polygon.geoms or [polygon]):
points = list(geom.exterior.coords)
if hasattr(geom, 'interiors'):
for geom in geom.interiors:
points += list(geom.coords)
for (x, y) in points:
ctx.arc(tx(x), ty(y), 2, 0, 2*pi)
ctx.set_source_rgb(.6, .6, .6)
ctx.fill()
print 'qhull...'
rbox = '\n'.join( ['2', str(len(points))] + ['%.2f %.2f' % (x, y) for (x, y) in points] + [''] )
qhull = Popen('qvoronoi o'.split(), stdin=PIPE, stdout=PIPE)
qhull.stdin.write(rbox)
qhull.stdin.close()
sleep(1) # qhull.wait()
qhull = qhull.stdout.read().splitlines()
vert_count, poly_count = map(int, qhull[1].split()[:2])
print 'graph...'
skeleton = Graph()
for (index, line) in enumerate(qhull[2:2+vert_count]):
point = Point(*map(float, line.split()[:2]))
if point.within(polygon):
skeleton.add_node(index, dict(point=point))
for line in qhull[2 + vert_count:2 + vert_count + poly_count]:
indexes = map(int, line.split()[1:])
for (v, w) in zip(indexes, indexes[1:] + indexes[:1]):
if v not in skeleton.node or w not in skeleton.node:
continue
v1, v2 = skeleton.node[v]['point'], skeleton.node[w]['point']
line = LineString([(v1.x, v1.y), (v2.x, v2.y)])
if line.within(polygon):
skeleton.add_edge(v, w, dict(line=line, length=line.length))
print 'trim...'
removing = True
while removing:
removing = False
for index in skeleton.nodes():
if skeleton.degree(index) == 1:
depth = skeleton.node[index].get('depth', 0)
if depth < 10:
other = skeleton.neighbors(index)[0]
skeleton.node[other]['depth'] = depth + skeleton.edge[index][other]['line'].length
skeleton.remove_node(index)
removing = True
print 'draw...'
for index in skeleton.nodes():
point = skeleton.node[index]['point']
if skeleton.degree(index) == 1:
ctx.arc(tx(point.x), ty(point.y), 3, 0, 2*pi)
ctx.set_source_rgb(.8, 0, 0)
ctx.fill()
for (v, w) in skeleton.edges():
(x1, y1), (x2, y2) = skeleton.edge[v][w]['line'].coords
ctx.move_to(tx(x1), ty(y1))
ctx.line_to(tx(x2), ty(y2))
ctx.set_source_rgb(0, 0, 0)
ctx.set_line_width(1)
ctx.stroke()
img.write_to_png('look.png')