Add Element

Aanand Bajaj

August 04, 2017 17:36

Hi is it possible to add an element in xml using Lua like if you have <xyPlot>

is it possible to actually ADD a series using scripting?

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Support Admin

August 08, 2017 09:58
It is not possible to add XML elements to a qdex module after the module has been published (for example, in scripting).

You can, however, achieve a similar effect by setting the series attribute in a plot to be larger than the number of series that are initially displayed.

In the below example, I have two series explicitly defined, but I have set the series attribute to 10. That means that the plot can hold a maximum of 10 series (including the 2 that are initially defined).

I have created a variable that holds the number of series that are currently plotted. When I press the "Add Series" button this variable increments, and a function is plotted in the next series. I can "add" 8 additional series to my plot in this way.
```
<xyPlot name="myPlot" series="10">
 <series name="firstSeries" />
 <series name="secondSeries" />
</xyPlot>

<script>
 local numSeries = 2;

 for x = -100, 100, 1 do
   y = 0.01*math.pow(x,3)
   myPlot.firstSeries:Add(x,y)
   myPlot.secondSeries:Add(x,-y)
 end
</script>

<button content="Add Series">
 <onClick>
   numSeries = numSeries + 1
   for x = -20, 20, 0.1 do
     y = numSeries*100*math.sin(x)
     myPlot.Series[numSeries]:Add(x,y)
   end
 </onClick>
</button>
```
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