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You're reading from  Sencha Charts Essentials

Product typeBook
Published inMay 2015
Reading LevelBeginner
Publisher
ISBN-139781785289767
Edition1st Edition
Languages
JavaScript
Tools
Sencha Touch
Concepts
Data Visualization
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Author (1)
Ajit Kumar
Ajit Kumar
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Ajit Kumar

Ajit Kumar has over 16 years of experience in technology areas ranging from embedded systems to large enterprise applications. He worked with various multinational corporations such as Honeywell, Hughes, Virtusa, and Convergys, before starting his own companyWalking Treewhich specializes in Sencha frameworks. Ajit has authored books on open source frameworks, including Sencha Touch Cookbook, Sencha Touch Cookbook Second Edition, Sencha MVC Architecture, and ADempiere 3.6 Cookbook, all by Packt Publishing, which he considers his way of thanking the awesome open source community!
Read more about Ajit Kumar

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Engaging users with gestures

Now, we are able to create some great looking charts and style them with our Awesome theme. However, it would be great if we could enable our users to interact with the chart, so they can get more information out of the presentation. For example, to figure out the sales amount for Q2, the user would have to look at the x axis and y axis labels to get the Q2 sales figure. However, if we can intercept the mouseover event on the bar and show the information in a tooltip, getting the same information is quicker.

Sencha Charts provides interactions to build interactivity in your chart. This is implemented by the base abstract class, Ext.chart.interactions.Abstract.

There are various built-in interactions implemented by the framework that we can leverage, such as Crosshair, CrossZoom, ItemHighlight, ItemInfo, PanZoom, Rotate, and RotatePie3D. While Crosshair, CrossZoom, and PanZoom interactions apply to cartesian charts, Rotate applies to polar charts, ItemHighlight...

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Sencha Charts Essentials
Published in: May 2015Publisher: ISBN-13: 9781785289767
© 2015 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Ajit Kumar

Ajit Kumar has over 16 years of experience in technology areas ranging from embedded systems to large enterprise applications. He worked with various multinational corporations such as Honeywell, Hughes, Virtusa, and Convergys, before starting his own companyWalking Treewhich specializes in Sencha frameworks. Ajit has authored books on open source frameworks, including Sencha Touch Cookbook, Sencha Touch Cookbook Second Edition, Sencha MVC Architecture, and ADempiere 3.6 Cookbook, all by Packt Publishing, which he considers his way of thanking the awesome open source community!
Read more about Ajit Kumar

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