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  Problem with dataSetName variable
Posted by David on Jun-20-2012 03:45
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Hello -

I create two clickable line charts to display on the same web page.  The first one works perfectly.  The second one does not.  I pass in the correct dataSet each time, but the 'dataSetName' variable is stuck on what the dataSetName was for the first chart.  Why is that?  Below is the code I use to generate the image maps.

Thanks!

legendBox = self.c.addLegend(90, 20, 0, self.TitleFont, 9)
legendBox.setBackground(Transparent)

layer = self.c.addLineLayer2()

layer.setLineWidth(2)

for data in dataSet:
         dataSetLayer = layer.addDataSet(data[1], -1, data[0])

chartURL = self.c.makeTmpFile("/tmp/tmpcharts")

chartImageMap = self.c.getHTMLImageMap("createChart.py", "", "title='{dataSetName}:{value|0}; Click to drill down'")

legendImageMap = legendBox.getHTMLImageMap("createChart.py, "",title='{dataSetName}; Click to drill down'")

return (chartURL, chartImageMap , legendImageMap)

  Re: Problem with dataSetName variable
Posted by Peter Kwan on Jun-20-2012 23:33
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Hi David,

Would you mind to inform me the code you use to display the chart image and to associate the chart image with the image map? It should like:


<img src="....url of first chart..." border="0" usemap="#map1">
<map name="map1">
... image map of first chart ...
</map>

<img src="....url of second chart..." border="0" usemap="#map2">
<map name="map2">
... image map of second chart ...
</map>

Note that "usemap" attribute of the <img> tag and and the "name" attribute of the <map> tag. As according to the HTML standard, each <map> tag must have a unique "name" attribute. (In the above, one map is called "map1", and one map is called "map2".) The <img> tag must use the correct "usemap" attribute so that the browser knows which map is for which image. (In the above code, the <img> for chart 1 uses "#map1", while the <img> for chart 2 uses "#map2" to match with the actual "name" attribute of the <map>.)

Hope this can help.

Regards
Peter Kwan

  Re: Problem with dataSetName variable
Posted by David on Jun-21-2012 03:32
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Thank you, Peter.  This fixed my problem.  I was using the same name attribute for both.