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Lines along minimum or maximum values of axis are not visible

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Philip
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Philip asked on 24 Jun 2016, 03:27 PM

Hi, I have used a ScatterLineSeries inside a RadCartesianChart with both HorizontalAxis and VerticalAxis set to LinearAxis.

The y-value shows probability of something for an elapsed time, so the only meaningful range for y-axis is 0 to 1, thus i set Minimum=0 and Maximum=1

Multiple consecutive points have y=1, so there should be a horizontal line at the very top of the graph. But is seems it will be completely cut away and not visible. I guess it makes sense if thickness is based on (Maximum - y).

I've tried working around by setting those values to y=0.99 and that work. I've also tried setting Maximum=1.01 and that also work.

However the first workaround gives big problems if i want to display the actual data, and the second workaround does not work well with minimum value.

I could set minimum value to -0.01, but then the first label will show value -0.01, and second label will show 0.09, and then 0.19 etc.

Any idea how I can solve this?

 

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Peshito
Telerik team
answered on 28 Jun 2016, 11:14 AM
Hello Philip,

In order to have your series thickness fully visible, try using the series' ClipToPlotArea property set to False. For example:
<telerik:RadCartesianChart x:Name="chart" ClipToBounds="False">
           <telerik:RadCartesianChart.HorizontalAxis>
               <telerik:LinearAxis />
           </telerik:RadCartesianChart.HorizontalAxis>
           <telerik:RadCartesianChart.VerticalAxis>
               <telerik:LinearAxis Minimum="0" Maximum="1"/>
           </telerik:RadCartesianChart.VerticalAxis>
           <telerik:RadCartesianChart.Series>
               <telerik:ScatterLineSeries ClipToPlotArea="False">
                   <telerik:ScatterLineSeries.DataPoints>
                       <telerik:ScatterDataPoint XValue="1" YValue="0.5"/>
                       <telerik:ScatterDataPoint XValue="2" YValue="0.6"/>
                       <telerik:ScatterDataPoint XValue="3" YValue="0.7"/>
                       <telerik:ScatterDataPoint XValue="4" YValue="0.8"/>
                       <telerik:ScatterDataPoint XValue="5" YValue="0.9"/>
                       <telerik:ScatterDataPoint XValue="6" YValue="1.0"/>
                       <telerik:ScatterDataPoint XValue="7" YValue="1.0"/>
                       <telerik:ScatterDataPoint XValue="8" YValue="1.0"/>
                       <telerik:ScatterDataPoint XValue="9" YValue="1.0"/>
                   </telerik:ScatterLineSeries.DataPoints>
               </telerik:ScatterLineSeries>
           </telerik:RadCartesianChart.Series>
       </telerik:RadCartesianChart>
Hope this helps.

Regards,
Peshito
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Philip
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answered on 29 Jun 2016, 01:38 PM

Thank you, that worked :)

But I feel it's a bit strange that this is the default behaviour. My values are in the given range to the graph (of course including the boundary), so I think they should get displayed by default.

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Peshito
Telerik team
answered on 01 Jul 2016, 10:22 AM
Hi Philip,

I am glad this worked well.

This is the default behavior and the series is being clipped in order to be in the bounds of the plot area. Thank you for the feedback on the matter. I will forward it to our developers for further consideration.

Regards,
Peshito
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Philip
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answered on 01 Jul 2016, 10:33 AM

Yeah, but the data is in the range [Minimum, Maximum], so I don't think it should be clipped away.

Anyways, thanks for the good support :)

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