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  tooltip showing data not from the dataset
Posted by Stephen on Mar-07-2012 12:08
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Hi Peter,
I am drawing a line chart of price performance in term of % against Date, so the x-axis is the date, y-axis is the percentage up/down in daily basis.

Since the getHTMLImageMap is showing the dataset from the data of % and date, Other than the showing the % and date in the imagemap, How can the ImapeMap also able to show the fund price as well?

Regards,
Stephen

  Re: tooltip showing data not from the dataset
Posted by Peter Kwan on Mar-08-2012 00:54
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Hi Stephen,

You can supply the fund prices as an extra array to the line layer using Layer.addExtraField. Then in the image map, you can use {field0} to represent the fund price.

For example, in PHP, it is like:

$myLineLayer->addExtraField($myArrayOfFundPrices);

.....


$imageMap = $c->getHTMLImageMap("...". "...", "title='{field0} ({value}%)'");

Hope this can help.

Regards
Peter Kwan