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  Zoom In and Zoom out is not working in liner scale
Posted by abhishek.mr on May-05-2018 00:45
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Hello,


I have created a chart using linear scale for y axis and x axis , problem with the Zoom In , Zoom out functionality is not working and also i need a input for reset functionality(reset x & y axis to initial minimum and maximum value when button click)

Hope you understand my problem

Thanks & Regards,
Abhishek

  Re: Zoom In and Zoom out is not working in liner scale
Posted by Peter Kwan on May-05-2018 03:19
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Hi abhishek.mr,

There is an example in ChartDirector for a chart using linear scale for y axis and x axis and can zoom in/out. See:

http://www.advsofteng.com/doc/cdnetdoc/xyzoomscroll.htm

To reset to the initial scale, just set the ViewPortLeft and ViewPortTop to 0, and ViewPortWidth and ViewPortHeight to 1, and then call updateViewPort to update the chart.

Regards
Peter Kwan