Skip to content

Instantly share code, notes, and snippets.

@molliemarie
Last active January 27, 2020 22:11
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save molliemarie/707286c35b44a3896db349781664fb2a to your computer and use it in GitHub Desktop.
Save molliemarie/707286c35b44a3896db349781664fb2a to your computer and use it in GitHub Desktop.
FirstScatterComplete
license: mit
<!DOCTYPE html>
<meta charset="utf-8">
<script src="https://d3js.org/d3.v5.min.js"></script>
<style type="text/css">
svg {
border:1px solid #f0f;
}
.axis line {
stroke-width:1px;
stroke: #ccc;
stroke-dasharray: 2px 2px;
}
.axis text {
font-size: 12px;
fill: #777;
}
.axis path {
display: none;
}
.ufoGroup text {
fill: #aaa; /*grey out text*/
font-size: 11px;
}
.ufoCircle {
fill: limegreen;
}
</style>
<body>
<div id='titleDiv'>
<text>UFO Sightings in 2018</text>
</div>
</body>
<script>
//***** defining variables *****
const parseTime = d3.timeParse("%m/%Y");
const margin = {top: 20, right: 30, bottom: 20, left: 30};
const outerWidth = 700;
const outerHeight = 300;
const innerWidth = outerWidth - margin.left - margin.right
const innerHeight = outerHeight - margin.top - margin.bottom
//***** Defining svgs *****
const SVG = d3.select("body").append("svg")
.attr("width", outerWidth)
.attr("height", outerHeight);
const svg = SVG.append('g')
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
//***** Defining scales and axes *****
const xScale = d3.scaleTime()
.range([0, innerWidth]);
const xAxis = d3.axisBottom(xScale)
.tickSize(-innerHeight);
const yScale = d3.scaleLinear()
.range([innerHeight, 0])
const yAxis = d3.axisLeft(yScale)
.tickSize(-innerWidth);
//***** reading in data *****
d3.csv("https://raw.githubusercontent.com/molliemarie/MSIA-D3Course-2019/master/Projects%26Exercises/FirstCompleteScatter/data/ufo.csv", function(d) {
return {
date: d.date,
count: +d.count,
month: +d.date.split('/')[0],
parsedDate: parseTime(d.date),
year: parseTime(d.date).getYear() + 1900
};
}).then(ready);
//***** once data is ready, pass into ready function *****
function ready(fullData) {
//***** filtering to get startData *****
const startData = fullData.filter(function(d) { return d.year == 2018; })
console.log(startData)
//***** updating scales with data *****
xScale.domain(d3.extent(startData, function(d) { return d.parsedDate; }))
yScale.domain([0, d3.max(startData, function(d) { return d.count})])
//***** defining ufoGroup *****
const ufoGroup = svg.selectAll('.ufoGroup')
.data(startData).enter().append('g')
.attr('class', 'ufoGroup')
.attr('transform', function(d) { return 'translate(' + xScale(d.parsedDate) + ',' + yScale(d.count) + ')'})
//***** Create axis groups *****
const xAxisGroup = svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + innerHeight + ")")
.call(xAxis);
const yAxisGroup = svg.append("g")
.attr("class", "y axis") //gives group the classes 'y' and 'axis'
.call(yAxis);
//***** appending circles *****
ufoGroup.append('circle')
.attr('class', 'ufoCircle')
.attr('r', 10)
//***** appending text *****
ufoGroup.append('text')
.attr('class', 'ufoText')
.attr('dx', 10)
.attr('dy', -10)
.text(function(d) { return d.count})
}
</script>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment