[Solved] Scatter / Point with Logarithmic

[Ming]

Hi,

I needed to plot a Scatter / Point chart with with Y-Axis Logarithmic. It doesn;t work on my test. following is my test code.

            RadChart1.DefaultSeriesDefinition = new ScatterSeriesDefinition();
            RadChart1.DefaultView.ChartArea.AxisY.IsLogarithmic = true;

            RadChart1.ItemsSource = SeriesExtensions.GetUserScatterData();
































        public static List<List<UserDataPoint>> GetUserScatterData()
        {
            List<List<UserDataPoint>> data = new List<List<UserDataPoint>>();
            Random rand = new Random(DateTime.Now.Millisecond);
 
            List<UserDataPoint> seriesData = new List<UserDataPoint>();
            for (int i = 0; i < 199; i++)
            {
                seriesData.Add(new UserDataPoint(rand.Next(-100, 100), rand.Next(-990, 990)));
            }
            data.Add(seriesData);
 
            //List<UserDataPoint> seriesData3 = new List<UserDataPoint>();
            //for (int i = 0; i < 50; i++)
            //{
            //    seriesData3.Add(new UserDataPoint(rand.Next(-80, 10), rand.Next(10, 600)));
            //}
            //data.Add(seriesData3);
 
            List<UserDataPoint> seriesData3 = new List<UserDataPoint>();
            for (int i = 0; i < 50; i++)
            {
                seriesData3.Add(new UserDataPoint(rand.Next(-80, 10), rand.Next(189870, 60878770)));
            }
            data.Add(seriesData3);
 
 
            return data;
        }

[Nikolay]

Hello Jaiming Li,

Thank you for bringing this to our attention. Indeed, there seems to be a problem plotting Scatter chart with logarithmic Y axis. I have notified our developers and a fix will be provided in one of the future versions of the control.

Thank you for the valuable feedback.Your Telerik points have been updated.

Best wishes,
Nikolay
the Telerik team

[Ming]

Very cool, the 7/14 release fixed the Scatter / Point with Logarithmic bug!

[Pepito]

i have a cuestion, what library i should add to use UserDataPoint? 

[Evgenia]

Hi Pepito,

UserDataPoint is our custom class that we are using for convenience purposes in our examples. You can find it under your local installation path - for example C:\Program Files\Telerik\RadControls for Silverlight Q2 2011\Demos.

Kind regards,
Evgenia
the Telerik team