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Learning Highcharts 4

You're reading from   Learning Highcharts 4 Design eye-catching and interactive JavaScript charts for your web page with Highcharts, one of the leading tools in web charting

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Product type Paperback
Published in Jan 2015
Publisher Packt
ISBN-13 9781783287451
Length 478 pages
Edition 2nd Edition
Languages
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Author (1):
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Joe Kuan Joe Kuan
Author Profile Icon Joe Kuan
Joe Kuan
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Table of Contents (17) Chapters Close

Preface 1. Web Charts 2. Highcharts Configurations FREE CHAPTER 3. Line, Area, and Scatter Charts 4. Bar and Column Charts 5. Pie Charts 6. Gauge, Polar, and Range Charts 7. Bubble, Box Plot, and Error Bar Charts 8. Waterfall, Funnel, Pyramid, and Heatmap Charts 9. 3D Charts 10. Highcharts APIs 11. Highcharts Events 12. Highcharts and jQuery Mobile 13. Highcharts and Ext JS 14. Server-side Highcharts 15. Highcharts Online Services and Plugins Index

Sketching an area chart

In this section, we are going to use our very first example and turn it into a more stylish graph (based on the design of a wind energy poster by Kristin Clute): an area spline chart. An area spline chart is generated using the combined properties of area and spline charts. The main data line is plotted as a spline curve and the region underneath the line is filled in a similar color with a gradient and opaque style:

Sketching an area chart

First, we want to make the graph easier for viewers to look up the values for the current trend, so we move the y-axis values to the right side of the chart, where they will be closest to the most recent year:

            yAxis: {  ....
                opposite: true
            }

The next thing is to remove the interval lines and have a thin axis line along the y axis:

          yAxis: { ....
              gridLineWidth: 0,
              lineWidth: 1,
          }

Then, we simplify the y-axis title with a percentage sign and align to the top of the axis:

...
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