79 lines
2.1 KiB
JavaScript
79 lines
2.1 KiB
JavaScript
/** Class implementing the bar chart view. */
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class BarChart {
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/**
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* Create a bar chart instance and pass the other views in.
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* @param worldMap
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* @param infoPanel
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* @param allData
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*/
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constructor(worldMap, infoPanel, allData) {
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this.worldMap = worldMap;
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this.infoPanel = infoPanel;
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this.allData = allData;
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}
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/**
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* Render and update the bar chart based on the selection of the data type in the drop-down box
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*/
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updateBarChart(selectedDimension) {
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// ******* TODO: PART I *******
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// Create the x and y scales; make
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// sure to leave room for the axes
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let data = this.chooseData(selectedDimension);
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let xaxisHeight = 20;
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let yaxisWidth = 20;
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let dataNum = [];
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data.forEach(x => dataNum.push(x.data));
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let datadate = [];
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data.forEach(x => datadate.push(x.date));
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// Create colorScale
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// Create the axes (hint: use #xAxis and #yAxis)
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// Create the bars (hint: use #bars)
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// ******* TODO: PART II *******
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// Implement how the bars respond to click events
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// Color the selected bar to indicate is has been selected.
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// Make sure only the selected bar has this new color.
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// Call the necessary update functions for when a user clicks on a bar.
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// Note: think about what you want to update when a different bar is selected.
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}
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/**
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* Check the drop-down box for the currently selected data type and update the bar chart accordingly.
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*
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* There are 4 attributes that can be selected:
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* goals, matches, attendance and teams.
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*/
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chooseData() {
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// ******* TODO: PART I *******
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//Changed the selected data when a user selects a different
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// menu item from the drop down.
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let currentDataType = d3.select('#dataset')
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.node().value;
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//.property("value");
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let selectedData = [];
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this.allData.forEach(x => {
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var item = [];
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item.date = x["year"];
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item.data = x[currentDataType];
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selectedData.push(item);
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});
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console.log(this.allData);
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console.log(selectedData);
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return selectedData;
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}
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}
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