md`# Spikemap of croatian voters`
chart = {
const svg = d3.create("svg")
.attr("viewBox", [0, 0, width, height]);
svg.append("path")
.datum(geojson)
.attr("fill", "lightgrey")
.attr("stroke", "white")
.attr("stroke-linejoin", "round")
.attr("d", path);
svg.append("g")
.attr("fill", "red")
.attr("fill-opacity", 0.3)
.attr("stroke", "red")
.selectAll("path")
.data(voterData)
//.filter(d => d.position)
// .sort((a, b) => d3.ascending(a.position[1], b.position[1])
// || d3.ascending(a.position[0], b.position[0])))
.join("path")
.attr("transform", d => {
d.position = projection([d.lng,d.lat])
return `translate(${d.position})`}
)
.attr("d", d => spike(length(d.voters)))
.append("title")
.text(d => `${d.mjesto}
${d3.format(".2s")(d.voters)}`);
const legend = svg.append("g")
.attr("fill", "#777")
.attr("text-anchor", "middle")
.attr("font-family", "sans-serif")
.attr("font-size", 10)
.selectAll("g")
.data(length.ticks(8).slice(1).reverse())
.join("g")
.attr("transform", (d, i) => `translate(${width*0.8 - (i + 1) * 28},520)`);
legend.append("path")
.attr("fill", "red")
.attr("fill-opacity", 0.3)
.attr("stroke", "red")
.attr("d", d => spike(length(d)));
legend.append("text")
.attr("dy", "1.3em")
.text(length.tickFormat(4, "s"));
return svg.node();
}
projection([voterData[3].lng,voterData[3].lat])
projection = d3.geoAlbers()
.rotate([-15,0])
.fitExtent([[0, 20], [width * 0.9, height * 0.9]], geojson)
color = d3.scaleSequential(d3.interpolateYlOrRd).domain([0,1])
spike = (length, width = 7) => `M${-width / 2},0L0,${-length}L${width / 2},0`
height = width
path = d3.geoPath()
.projection(projection)
length(100)
length = d3.scaleLinear([0, maxVoters], [0, 150]).clamp(true)
// length = d3.scaleLog().domain([1, maxVoters]).range([0,250])
// length = d3.scaleLinear([0, 200000], [0, 80]).clamp(true)
maxVoters = d3.max(voterData, d => d.voters)
// maxVoters = 80000
voterData = {
var retval = d3.csvParse(await FileAttachment("glasaciLokacija@2.csv").text(), function(d) {
return {
'mjesto': d.lokacija,
'voters': +d.glasaca,
'lat': +d.lat,
'lng': +d.lng
}
})
// retval = retval.filter(d=>d.voters > 2750)
return retval
}
//topoHrv = FileAttachment("hrvatska.topojson").json()
//topoHrv = FileAttachment("hrv.1.topojson").json()
topoHrv = FileAttachment("hrvatska.1.tomo.topojson.json").json()
hrvatska = FileAttachment("hrvatska.1.geojson").json()
// hrvatska = FileAttachment("hrvatska.1.tomo.topojson.json").json()
topojson = require("topojson-client@3")
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