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Hi, I’m using the trial version for Xamarin. We wish to develop a mobile app which will have charting capabilities similar to our existing desktop application. I’ll provide an example of what we do (3 screenshots attached), can you please tell me if SciChart can do the same?

In #1 you see an FFT chart.
We select a data point by touching the screen.
In #2 you see a vertical blue line over the selected data point, plus 5 equidistant markers to the right.
We click a button to move right.
In #3 you see the 5 markers have moved to the right, the distance between them has increased slightly.

Is this something that SciChart can handle? Easily? With difficulty?
We want to write all the code in the common Xamarin project only (i.e. no iOS or Android specific code).

Thanks very much,
Wayne

Version
latest Xamarin v3 trial
Images
Android
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Hi Wayne,

I think it should be possible to implement this behavior as custom ChartModifier which adds VerticalLineAnnotation and 5 BoxAnnotations, but there will be a problem with “we want to write all the code in the common Xamarin project only”. Currently this won’t be possible because we provide only Xamarin.Android and Xamarin.iOS bindings and they are platform specific. This means that if you’re using Xamarin.Forms then you’ll need to create some platform specific code which wraps native Android/iOS chart views.

Hope this will help you!

Best regards,
Yura

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Hi Yura,

My manager says platform-specific code will be okay, so no problem there.

Next on our wishlist: a 2D Realtime Polar Chart.
I see you have it for WPF, but we need it in Xamarin.
Will it be added to Xamarin in the near future?
If not, can we get it done with the existing software?

Thanks,
Wayne

  • Yura Khariton
    Unfortunately we didn’t port this type of chart for mobile, because there was no interest from customers. If you want us to port it please create feature request and vote for it ( https://www.scichart.com/feedback-policy/ ), then if it gets enough votes we’ll port it.
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Thanks for the prompt response.

I need to be clear on the second part of my question:
Given that a 2D Realtime Polar Chart is not “on the menu” in the existing software,
is it possible to produce it somehow with a different base chart plus extra coding?

Thanks,
Wayne

  • Yura Khariton
    No, if you take a look on WPF output you’ll see that polar chart looks differently than regular chart. It includes set of new axes types which placed differently, which means creation of custom axes and layout of chart. Also data needs to be additionally processed before drawing ( convert coordinates between cartesian and polar coordinates + adding additional points if it’s needed ) and extra code if you need annotations and modifiers. That’s what is required to port polar chart API from WPF.
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Hi again, I wonder if I can get your advice on that 2D Realtime Polar Chart?

We absolutely must have it for our Xamarin apps, even if we have to write it all ourselves from scratch in native code 3 times for Android, iOS and UWP. Is there any way that SciChart can make our job easier?

Thanks very much,
Wayne

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