FirstScatterPlot_UFOSightings_ClassWork

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forked from molliemarie's block: FirstScatterPlot_UFOSightings_Starter

<!DOCTYPE html>
<meta charset="utf-8">

<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;
    font-size: 11px
  }
  
  .ufoCircle {
    fill: limegreen
  }

/*NEW CSS GOES HERE*/

</style>

<body>
  <div id='titleDiv'></div>
</body>

<script>

//*****defining variables*****
  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
  const radius = 10;
  const parseTime = d3.timeParse("%m/%Y");
  
  d3.select('#titleDiv')
  	.append('h1')
  	.attr('id', 'titleText')
  	.text('UFO Sightings in 2018')
  
  //***** loading data using d3-fetch *****
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);
  
  //***** After data loaded, calls ready function *****
  function ready(fullData) {
    
    //***** filter data to look at just 2018 *****
    const startData = fullData.filter(function(d) { return d.year == 2018})
    
    //***** Define inner and outer SVGs *****
    //***** reference: https://bl.ocks.org/mbostock/3019563 *****
     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 + ")");

//***** set scales and axes *****
    const xScale = d3.scaleTime()
      .domain(d3.extent(startData, function(d) { return d.parsedDate}))
      .range([0, innerWidth])

const yScale = d3.scaleLinear()
      .domain([0,500])
      .range([innerHeight, 0]);

const xAxis = d3.axisBottom(xScale)
    	.tickSize(-innerHeight);

const yAxis = d3.axisLeft(yScale)
    	.tickSize(-innerWidth);

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')
      .call(yAxis)

//***** Define 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) + ')'})

//***** append circles to ufoGroup *****
    ufoGroup.append('circle')
      .attr('class', 'ufoCircle')
      .attr('r', radius)
//     	.style('fill', 'limegreen')

//***** append text to ufoGroup *****
    ufoGroup.append('text')
      .attr('class', 'ufoText')
      .attr('dx', radius)
      .attr('dy', -radius)
      .text(function(d) { return d.count;})
      }

</script>

https://d3js.org/d3.v5.min.js