This is an example of using D3's geo paths to render a MultiLineString, but it seems to not render correctly for whatever reason. It is not a fill/stroke problem, either.
Identified problem: It seems that the stroke width gets scaled as well.
Last active
August 29, 2015 14:01
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D3 MultiLineString Example
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| {"type":"Topology","objects":{"metrotransit-green-line.geo":{"type":"GeometryCollection","crs":{"type":"name","properties":{"name":"urn:ogc:def:crs:OGC:1.3:CRS84"}},"geometries":[{"type":"MultiLineString","properties":{"route":"902","routesort":902,"routedscrp":"Green Line - Mpls - St Paul","routetype":"1","route_oper":"M","wk_ftrip":"3:06:00 AM","wk_ltrip":"3:56:00 AM","wk_span":"24:50","sat_ftrip":"3:06:00 AM","sat_ltrip":"3:56:00 AM","sat_span":"24:50","sun_ftrip":"3:06:00 AM","sun_ltrip":"3:56:00 AM","sun_span":"24:50","line_type":"Urb Loc","Shape_Leng":28736.226716},"arcs":[[0],[1],[2],[3],[4],[5],[6],[7],[8],[9]]}]}},"arcs":[[[9433,1123],[28,-144],[33,-171],[21,-104],[78,-406],[39,-219],[8,-22],[70,-57],[16,0],[7,6],[66,159],[66,175],[73,181],[61,152]],[[9433,1123],[-4,43],[-8,41],[-29,146],[-29,140],[-15,68]],[[9348,1561],[-10,-22],[15,-72],[26,-126],[34,-156],[10,-42],[10,-20]],[[8971,2613],[112,14],[80,13],[78,3],[79,1],[5,-23],[13,-105],[20,-109],[7,-34],[21,-92],[32,-142],[18,-81],[33,-152],[7,-36],[-64,-151],[-64,-158]],[[8971,2613],[-4,37],[-168,0],[-11,0],[-62,-2],[-24,0],[-125,-2],[-74,0],[-67,-3],[-133,-1],[-134,-8],[-133,4],[-126,-11],[-9,-1],[-132,9],[-131,-4],[-133,2],[-132,1],[-132,-6],[-133,5],[-132,-2],[-128,4],[-8,0],[-129,-6],[-133,-3],[-134,1],[-133,-3],[-133,-1],[-132,-5],[-93,5],[-85,-3],[-83,-6],[-8,1],[-64,-1],[-68,0],[-64,-4],[-67,-2],[-67,2],[-66,-6],[-58,1],[-9,3],[-25,13],[-42,42],[-12,17],[-25,46],[-21,44],[-90,188],[-118,238],[-134,264],[-73,149],[-53,118],[-39,84],[-84,167],[-83,181],[-84,174],[-84,166],[-86,178],[-76,159],[-80,164],[-55,111],[-66,142],[-66,139],[-125,244],[-71,149],[-40,82],[-29,39]],[[3653,5906],[22,-74],[47,-88],[64,-140],[131,-265],[67,-133],[67,-149],[31,-56],[103,-207],[157,-324],[84,-170],[84,-170],[84,-177],[85,-172],[38,-88],[106,-207],[158,-329],[113,-234],[25,-55],[65,-135],[35,-64],[28,-41],[28,-28],[38,-24],[68,-2],[66,2],[67,1],[67,3],[64,-2],[68,8],[64,-3],[8,0],[83,1],[85,0],[93,-7],[132,5],[132,6],[134,5],[134,2],[133,-2],[129,4],[8,2],[128,-8],[133,3],[132,-3],[133,0],[131,-1],[133,0],[131,6],[132,-1],[10,-1],[125,2],[133,0],[134,2],[133,9],[73,1],[75,1],[117,2],[25,1],[61,2],[12,0],[165,-1],[7,0]],[[2289,7420],[103,1],[82,3],[84,-2],[83,0],[76,-15],[96,3],[11,166],[5,35],[38,247],[7,42],[18,118],[114,-228],[107,-223],[142,-279],[1,-229],[0,-341],[34,-71],[36,-73],[63,-132],[27,-49],[24,-49],[26,-54],[119,-247],[25,-49],[43,-88]],[[2289,7420],[-21,7],[-117,1],[-14,-6],[-43,-33],[-194,-167],[-149,-134],[-84,-88],[-76,-71],[-212,-286],[-23,-5],[-14,6],[-11,14],[-13,21],[-8,30],[-12,42],[-8,23],[-92,687],[-13,66],[-16,55],[-30,82],[-21,45],[-71,154],[-15,19],[-16,6],[-19,-15],[-65,-84],[-54,-68]],[[878,7721],[50,50],[74,95],[17,9],[16,-8],[13,-21],[47,-100],[26,-55],[40,-96],[18,-60],[15,-69],[11,-74],[82,-619],[15,-66],[15,-53],[17,-19],[13,-16],[10,-7],[20,11],[229,287],[17,17],[46,46],[81,82],[349,312],[40,33],[30,11],[99,-4],[21,13]],[[878,7721],[-6,-1],[-5,5],[-71,156],[-72,158],[-70,146],[-72,160],[-70,148],[-72,157],[-70,155],[-101,224],[-59,210],[-63,219],[-57,206],[-90,335]]],"transform":{"scale":[0.000019149985256883253,0.000003727399867613787],"translate":[-93.27766572973482,44.94599039981439]}} |
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <style> | |
| </style> | |
| </head> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script src="http://d3js.org/topojson.v1.min.js"></script> | |
| <script> | |
| d3.json('data.topojson', function(error, route) { | |
| var width = 960; | |
| var height = 500; | |
| var svg = d3.select('body').append('svg') | |
| .attr('width', width) | |
| .attr('height', height); | |
| route = topojson.feature(route, route.objects['metrotransit-green-line.geo']); | |
| // Make projection and path handler | |
| var projectionData = route; | |
| var centroid = d3.geo.centroid(projectionData); | |
| var projection = d3.geo.albersUsa() | |
| .scale(1000) | |
| .translate([width / 2, height / 2]); | |
| var projectionPath = d3.geo.path().projection(projection); | |
| // Make group for features | |
| var featureGroup = svg.append('g').attr('class', 'feature-group'); | |
| // Fit map to data | |
| var b = projectionPath.bounds(projectionData); | |
| featureGroup.attr('transform', | |
| 'translate(' + projection.translate() + ') ' + | |
| 'scale(' + 0.95 / Math.max((b[1][0] - b[0][0]) / width, (b[1][1] - b[0][1]) / height) + ') ' + | |
| 'translate(' + -(b[1][0] + b[0][0]) / 2 + ',' + -(b[1][1] + b[0][1]) / 2 + ')'); | |
| // Add data | |
| featureGroup.selectAll('.route') | |
| .data(route.features) | |
| .enter() | |
| .append('path') | |
| .attr('class', 'route') | |
| .attr('d', projectionPath) | |
| .style('fill', 'blue') | |
| .style('fill-opacity', 0.05) | |
| .style('stroke', 'red') | |
| .style('stroke-opacity', 0.75) | |
| .style('stroke-width', 0.001); | |
| }); | |
| </script> | |
| </body> |
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