Like the other Mexican municipalities map, but using projected TopoJSON for faster rendering and better simplification. In response to a Stack Overflow question.
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May 25, 2017 07:54
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Mexico
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| license: gpl-3.0 |
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| build | |
| node_modules | |
| .DS_Store |
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .municipalities { | |
| fill: #222; | |
| } | |
| .municipalities :hover { | |
| fill: orange; | |
| } | |
| .state-boundary { | |
| fill: none; | |
| stroke: #fff; | |
| pointer-events: none; | |
| } | |
| .municipality-boundary { | |
| fill: none; | |
| stroke: #fff; | |
| stroke-opacity: .25; | |
| stroke-width: .5px; | |
| pointer-events: none; | |
| } | |
| </style> | |
| <body> | |
| <script src="//d3js.org/d3.v3.min.js"></script> | |
| <script src="//d3js.org/topojson.v1.min.js"></script> | |
| <script> | |
| var width = 960, | |
| height = 628; | |
| var path = d3.geo.path() | |
| .projection(null); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| d3.json("mx.json", function(error, mx) { | |
| if (error) throw error; | |
| svg.append("g") | |
| .attr("class", "municipalities") | |
| .selectAll("path") | |
| .data(topojson.feature(mx, mx.objects.municipalities).features) | |
| .enter().append("path") | |
| .attr("d", path) | |
| .append("title") | |
| .text(function(d) { return d.properties.name; }); | |
| svg.append("path") | |
| .datum(topojson.mesh(mx, mx.objects.municipalities, function(a, b) { return a.properties.state !== b.properties.state; })) | |
| .attr("class", "state-boundary") | |
| .attr("d", path); | |
| svg.append("path") | |
| .datum(topojson.mesh(mx, mx.objects.municipalities, function(a, b) { return a.properties.state === b.properties.state && a !== b; })) | |
| .attr("class", "municipality-boundary") | |
| .attr("d", path); | |
| }); | |
| d3.select(self.frameElement).style("height", height + "px"); | |
| </script> |
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| GENERATED_FILES = \ | |
| mx.json | |
| .PHONY: all clean | |
| all: $(GENERATED_FILES) | |
| clean: | |
| rm -rf -- $(GENERATED_FILES) build | |
| build/mgm2010v5_0a.zip: | |
| mkdir -p $(dir $@) | |
| curl -o $@ 'http://mapserver.inegi.org.mx/MGN/mgm2010v5_0a.zip' | |
| build/mgm2010v5_0a.shp: build/mgm2010v5_0a.zip | |
| rm -rf -- $(basename $@) | |
| mkdir -p $(basename $@) | |
| unzip -d $(basename $@) $< | |
| for file in `find $(basename $@) -type f`; do chmod 644 $$file; mv $$file $(basename $@).$${file##*.}; done | |
| rm -rf -- $(basename $@) | |
| touch $@ | |
| mx.json: build/mgm2010v5_0a.shp | |
| node_modules/.bin/topojson --width=960 --margin=20 --simplify=1 -q 1e5 -o $@ -p name=NOM_MUN -p state=+CVE_ENT -- municipalities=$< |
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| { | |
| "name": "anonymous", | |
| "version": "0.0.1", | |
| "private": true, | |
| "devDependencies": { | |
| "topojson": "1" | |
| } | |
| } |
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Hi Mike, I am trying to replicate your map using a topojson for the Mexican states only. http://bl.ocks.org/josecarlosgonz/0ce2a73795c9d12eff9d Nevertheless, when opening the index.html in my local server I only see a blank page. Could you please give me a hint on what is going on? Thanks!