Radar chart rendering incorrectly on iOS with 18 items

[Ryan Harding]

Good day,

I am using your SfChart with RadarSeries graph to display some information.

I'm not doing anything special, just displaying 18 (string) items with values (double) of 1-7.

  <chart:SfChart>

                    <chart:SfChart.PrimaryAxis>

                        <chart:CategoryAxis />

                    </chart:SfChart.PrimaryAxis>

                    <chart:SfChart.SecondaryAxis>

                        <chart:NumericalAxis

                            Interval="1"

                            Maximum="7"

                            Minimum="0">

                        </chart:NumericalAxis>

                    </chart:SfChart.SecondaryAxis>

                    <chart:SfChart.Series>

                        <chart:RadarSeries

                            ItemsSource="{Binding ScoreData}"

                            Opacity="0.7"

                            StrokeColor="Black"

                            StrokeWidth="1"

                            XBindingPath="Category"

                            YBindingPath="Score"

                            Color="{Binding GraphFullColor}" />

</chart:SfChart.Series>

</chart:SfChart>

This displays correctly on Android and UWP.

However on iOS it draws incorrectly (see photo below)

I've tried changing properties, making labels shorter, reading through all your docs and checking forums.

I can't find anywhere that mentions a limitation on number items on iOS, or issues around rendering.

Any help would be appreciated.

[Ryan Harding]

Some additional info.

iOS Radar renderers correctly up 13 Items (Categories), as I push to 14, it starts overlapping/drawing incorrectly

[Yuvaraj Palanisamy]

Hi Ryan Harding, 

 

Greetings from Syncfusion. 

 

We have analyzed your query and we can reproduce the reported problem “Radar series rendered wrongly for above 14 datapoints with category axis” at our end. Also, currently we are validating this and we will update you with complete details on or before 15^th September 2021. We appreciate your patience until then. 

 

Regards, 

Yuvaraj.

[Ryan Harding]

Thanks Yuvaraj

Eagerly await the feedback.

Regards,

Ryan 

[Gayathri Manickam]

Hi Ryan, 

 

We have validated your query “Radar chart rendering incorrectly on iOS with 18 items” and we can be able to reproduce the reported problem at our end. You can resolve the issue by setting MaximumLabels property of primary axis based on the data count. Please refer below sample for your reference. Meanwhile we are validating the issue in the source level. We will share complete details by tomorrow 16^th September 2021 before EOD. 

 

For reference, please refer below UG link. 

https://help.syncfusion.com/xamarin/charts/axis#maximum-number-of-labels-per-100-pixels 

 

Sample : https://www.syncfusion.com/downloads/support/forum/168792/ze/RadarChartSample1653937031.zip 

 

Output  

 

 

 

Thanks  

Gayathri M. 

[Ryan Harding]

Thanks Gayathri,

Will try that suggestion and report my findings.

Will keep an eye out for the details.

Cheers,

Ryan

[Gayathri Manickam]

Hi Ryan, 

 

On further analysis we have confirmed that the reported problem “Radar chart rendering incorrectly on iOS with 18 items” as issue, and the fix for the reported issue will be included in our weekly NuGet release which is expected to be roll out on 28^th September 2021. We appreciate your patience until then. We will let you know once it gets rolled out.        

    

Feedback link: https://www.syncfusion.com/feedback/28720/ios-radar-chart-is-not-rendered-properly-in-categoryaxis-with-more-than-14-data   

     

Note: The provided feedback link is private, and you need to login to view this feedback.   

 

Thanks  

Gayathri M. 

[Gayathri Manickam]

  

Hi Ryan, 

 

Since our  Volume 3, 2021 release is scheduled by end of this month our weekly nuget release was not done. We will include the fix in our upcoming weekly nuget release after volume 3 release. We appreciate your patience until then. We will let you know once it gets rolled out.  

 

Regards, 

Gayathri M. 

[Gayathri Manickam]

Hi Ryan, 

 

We are glad to announce that our weekly NuGet was rolled out and fix for the reported issue was included in the weekly NuGet.

NuGet Version: 19.3.0.45  

We thank you for your support and appreciate your patience in waiting for this release. Please get in touch with us if you would require any further assistance.  

  

Regards, 

Gayathri M.