Building and Using Tools to See.
UVA Architecture + Data Science. IT Director. Instructor.
<svg width="1200" height="200" id="uva_bball">
<style>
line {stroke-width: 2;}
.home {stroke: blue;}
.away {stroke: orange;}
.uva, .opponent {fill: #aaa;stroke: none;}
.seasonText {font-family: "Helvetica, Arial, sans-serif"; font-size: 12px; fill: #aaa;}
</style>
</svg>
scores = FileAttachment("UVA_bball_allyears@3.csv").csv();
scores.forEach((d)=>{
d.UVA_score = Number(d.UVA_score);
d.Opponent_score = Number(d.Opponent_score);
});
Inputs.table(scores)
chart = {
let mySVG = d3.select(svg); // the svg object referenced here is the "name" of the cell above that defines the svg.
let midline = mySVG.attr("height")/2;
let startX = 5;
let spacing = 3;
let sparklines = mySVG.selectAll("line")
.data(scores)
.join("line")
.attr("x1", (d,i) => startX + i * spacing)
.attr("x2", (d,i) => startX + i * spacing)
.attr("y1", midline)
.attr("y2", d => midline - d.UVA_score + d.Opponent_score)
.attr("class", d => {
if (d.Location == "Charlottesville, Va.") {
return "home";
} else {
return "away";
}
});
// actual scores as dots
let uvaDots = mySVG.selectAll(".uva")
.data(scores)
.join("circle")
.attr("cx", (d,i) => startX + i * spacing)
.attr("cy", d => midline - d.UVA_score)
.attr("r", 1)
.attr("class", "uva");
let opponentDots = mySVG.selectAll(".opponent")
.data(scores)
.join("circle")
.attr("cx", (d,i) => startX + i * spacing)
.attr("cy", d => midline + d.Opponent_score)
.attr("r", 1)
.attr("class","opponent");
// add season labels
scores.forEach((d,i) => {
let thisGameMonth = +d.Date.split('/')[0];
let lastGameMonth;
let lastIndex = i-1;
if (typeof(scores[lastIndex]) != "undefined" && scores[lastIndex].Date != "") {lastGameMonth = +scores[lastIndex].Date.split('/')[0]} else {lastGameMonth = ""}
if (i == 0 || lastGameMonth == "" || thisGameMonth-lastGameMonth > 1) {
// it's a new season - draw the text
mySVG.append("text")
.attr("x", startX + i * spacing)
.attr("y", midline + 14)
.text(d.Date.split('/')[2] + "-" + (Number(d.Date.split('/')[2])+1))
.classed("seasonText", true);
}
})
}
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