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  2 donuts graph can only drill down the outer donut
Posted by Vincent Chang on May-05-2018 05:22
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Attachments:
Hi,

I have a graph with inner pie and 2 rings(donuts) around the pie. I configure the graph as drill down, but I can only drill down the outer ring(donut). Even I position the mouse cursor on the inner ring or center pie, it still shows the info as thought it was over the outer ring.

I define the outer ring as -> c
inner ring as -> c2
center pie as -> c1

Please find the screenshot in attachment.

Thanks

Vincent
screenshot.docx
screenshot.docx
121.15 Kb

  Re: 2 donuts graph can only drill down the outer donut
Posted by Peter Kwan on May-06-2018 13:01
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Hi Vincent,

If you use the DrawArea.merge method to create the chart, then the $c->getHTMLImageMap just contains the image map for the outer ring "c". You need to create the image map for the 3 charts "c1", "c2", "c" and append them together in the proper order (from inside to outside in your case) , like:

$imageMap = $c1->getHTMLImageMap(.....)  .  $c2->getHTMLImageMap(.....) . $c->getHTMLImageMap(.....);

Regards
Peter Kwan

  Re: 2 donuts graph can only drill down the outer donut
Posted by Vincent Chang on May-08-2018 03:33
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Hi Peter,

Thank you for the reply, that works great.

Vincent

  Re: 2 donuts graph can only drill down the outer donut
Posted by Vincent Chang on May-08-2018 06:34
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Attachments:
Hi,

When I click on the DrawArea, I see lines enclosed the draw area briefly before going to the drill down new graph. Is there a way to prevent that from happening? Please see the attachment as an example.

Thanks

Vincent
screenshot1.docx
screenshot1.docx
120.84 Kb

  Re: 2 donuts graph can only drill down the outer donut
Posted by Peter Kwan on May-08-2018 21:47
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Hi Vincent,

Some browsers, such as Chrome, will display the outline of the image map when it is clicked. You may use CSS to disable the outline. It is like:

area { border:none; outline-style:none; -moz-outline-style:none; }

Hope this can help.

Regards
Peter Kwan

  Re: 2 donuts graph can only drill down the outer donut
Posted by Vincent Chang on May-11-2018 08:16
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Hi Peter,

Thank you, it fixed the problem.

Vincent