Book Image

ActionScript Graphing Cookbook

Book Image

ActionScript Graphing Cookbook

Overview of this book

"A picture is worth a thousand words" has never been more true than when representing large sets of data. Bar charts, heat maps, cartograms, and many more have become important tools in applications and presentations to quickly give insight into complicated issues.The "ActionScript Graphing Cookbook" shows you how to add your own charts to any ActionScript program. The recipes give step-by-step instructions on how to process the input data, how to create various types of charts and how to make them interactive for even more user engagement.Starting with basic ActionScript knowledge, you will learn how to develop many different types of charts.First learn how to import your data, from Excel, web services and more. Next process the data and make it ready for graphical display. Pick one of the many graph options available as the book guides you through ActionScript's drawing functions. And when you're ready for it, branch out into 3D display.The recipes in the "ActionScript Graphing Cookbook" will gradually introduce you into the world of visualization.
Table of Contents (17 chapters)
ActionScript Graphing Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Linking graphs


If zooming and panning is not enough to give a clear insight into the data, another option is to link graphs. When a user selects a data point he wants to inspect, a new graph opens, giving a detailed look at the information.

This recipe will work with two datasets and show the basics of interacting in graphs. You can adapt this to suit your specific situation.

Getting ready

This recipe will start, once again, from the initial graph. Although the end result is the same, we have restructured the code a little to help us keep everything organized when we start adding the recipe's code. We've also added a second graph and dataset that will represent our zoomed in data.

package com.graphing.link
{
    import com.graphing.PointGraphPoint;
    import flash.display.Sprite;
    import com.graphing.PointGraph;
    import flash.events.MouseEvent;

    public class Recipe7 extends Sprite
    {
        private var _graph:PointGraph;
        private var _data:Array = [[0, 20], [50, 70], [100...