Google Charts API

From Earlham CS Department
Revision as of 04:30, 3 February 2014 by Ghcrows13 (talk | contribs) (Charts)
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Under construction during Spring 2014.

Summary

Introduction

Google Charts are relatively easy to get running but have a lot of nuance to them.

Data

The [DataTable] class stores data to be used by charts.

  • Data can be imported via JSON or via arrays using [this syntax].

Charts

Chart options can be set in multiple ways:

  • at creation by passing JSON as the chart's options parameter
  • chart.setOptions(JSON) which is equivalent to setting options at creation
    • Example:

var options = {

 width: 400,
 height: 240,
 title: 'Toppings I Like On My Pizza',
 colors: ['#e0440e', '#e6693e', '#ec8f6e', '#f3b49f', '#f6c7b6']

};

chart.draw(data, options);

  • chart.setOption('key', value) where key is the option being changed
    • Example: chart.setOption('is3D', true);
  • chart.getOptions() is the read accessor

Views

The [DataView] class changes how a DataTable is represented.

Controls

Resources

Google

[Library Documentation]

[Code Playground]

  • The column chart, combo chart,

External

Snippets