md`# MTA + COVID-19 map`
chart2 = {
var svg = d3.create("svg")
.attr("width", 1000)
.attr("height", 700)
var g = svg.append("g")
g.selectAll("path")
.data(nyc2.features)
.enter().append("path")
.attr("d", path)
.attr("fill","#C0C0C0");
var h = svg.append("g")
var circles = h.selectAll("circle")
.data(data.series)
.enter().append("circle")
.style("opacity", 0.7)
.attr("cx",function(d,i) {
var coords = proj([d.longitude,d.latitude]);
return coords[0];
})
.attr("cy",function(d,i) {
var coords = proj([d.longitude,d.latitude]);
return coords[1];
})
.attr("r",function(d,i) {
var proportion = d.values[3]/30000;
return 20*proportion;
})
.attr("fill",function(d) {
return d3.interpolateMagma(d.values[3]/30000);
});
g.attr("transform", "translate(200, 0)");
h.attr("transform", "translate(200, 0)");
var datetext = svg.append("text")
.text("Wednesday, Febrary 19th")
.attr("x", 50)
.attr("y", 100)
.style("font-size","30px")
.style("font-weight","bold");
svg.append("text")
.text("Total riders: ")
.attr("x",50)
.attr("y",130)
.style("font-size","20px")
.style("font-weight",20);
var valtext = svg.append("text")
.attr("x", 50)
.attr("y", 150)
.style("font-size","20px")
.style("font-weight",500)
.text("2868501");
const slider = d3.sliderBottom()
.min(d3.min(data.dates))
.max(d3.max(data.dates))
.marks(data.dates)
.width(300)
.tickFormat(d3.utcFormat("%b %d"))
.ticks(5)
.on("onchange", function(i) {
var index
for(var n = 0; n < data.dates.length; n++) {
//console.log(data.dates[n]);
if (data.dates[n] == i) {
index = n;
}
}
circles.transition().attr("r",function(d,i) {
var proportion = d.values[index]/30000;
return 20*proportion;
})
.attr("fill", function(d,i) {
return d3.interpolateMagma(d.values[index]/30000);
});
datetext.transition().text(d3.utcFormat("%A, %B %d")(i));
valtext.transition().text(function() {
console.log(index);
var total = 0;
for (var n = 0; n < data.series.length; n++) {
total += data.series[n].values[index]
}
return total;
});
});
svg.call(slider);
return svg.node()
}
proj = d3.geoConicConformal()
.parallels([33, 45])
.rotate([96, -39])
.fitSize([1000, 700], nyc2)
path = d3.geoPath()
.projection(d3.geoConicConformal()
.parallels([33, 45])
.rotate([96, -39])
.fitSize([1000, 700], nyc2))
nyc2 = {
var betterfeatures = nyc.features.filter(function(d) {
return d.properties.borough != "Staten Island";
})
return {
type: nyc.type,
features: betterfeatures
};
}
nyc = d3.json("https://gist.githubusercontent.com/pstuffa/928a2a31f352e59edef5ef56fa767e20/raw/7ba0230c627237c12cc1b3809f85d99486621756/nyc.json")
data = {
var dateRange = d3.timeDays(new Date(2020, 1, 16), new Date(2020, 3, 4));
var format = d3.timeFormat("%a %d")
return {
y: "Daily Station Entries",
series: data_raw,
dates: dateRange
};
}
data_raw.splice(0,1)
y = d3.scaleLinear()
.domain([0, d3.max(data.series, d => d3.max(d.values))]).nice()
//.domain([0, 12000])
.range([height - margin.bottom, margin.top])
x = d3.scaleUtc()
.domain(d3.extent(data.dates))
.range([margin.left, width - margin.right])
margin = ({top: 20, right: 20, bottom: 30, left: 30})
height = 600
d3 = require.alias({
"d3-array": "d3@5",
"d3-axis": "d3@5",
"d3-dispatch": "d3@5",
"d3-drag": "d3@5",
"d3-ease": "d3@5",
"d3-scale": "d3@5",
"d3-selection": "d3@5",
"d3-transition": "d3@5"
})("d3@5", "d3-simple-slider@1")
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