hello Petar,

thanks for your reply.

i am using FillSceneGraph to highlight low/high datapoint.

i am facing one problem in FillSceneGraph.

i have a composite chart which has two chart layers with line chart and area chart resp.

the below event highlights low/high point in both charts line as well as area.

i want to highlight only in line chart.

void ultraChart_FillSceneGraph(object sender, Infragistics.UltraChart.Shared.Events.FillSceneGraphEventArgs e)
        {
            UltraChart ultraChart = sender as UltraChart;
            if (ultraChart != null)
            {
                PrimitiveCollection symbols = new PrimitiveCollection();
                foreach (Primitive p in e.SceneGraph)
                {
                    
                    Polyline polyline = p as Polyline;
                    if (polyline != null)
                    {
                        foreach (DataPoint dataPoint in polyline.points)
                        {
                            NumericTimeDataPoint numericTimeDataPoint = dataPoint.DataPoint as NumericTimeDataPoint;
 
                            if (numericTimeDataPoint != null)
                            {
                                Symbol symbol;
                                
                                        if (numericTimeDataPoint.NumericValue == Maxvalue)
                                        {
                                            symbol = new Symbol
                                                         {
                                                             icon = SymbolIcon.Circle,
                                                             iconSize = (SymbolIconSize) 7,
                                                             PE = {Fill = Color.FromArgb(0, 50, 205, 50),
                                                                   StrokeWidth = 0,
                                                                   Stroke = Color.Transparent
                                                             },
                                                             point = dataPoint.point
                                                         };
                                            symbols.Add(symbol);
                                        }
 
                                        if (numericTimeDataPoint.NumericValue == Minvalue)
                                        {
                                            symbol = new Symbol
                                                         {
                                                             icon = SymbolIcon.Circle,
                                                             iconSize = (SymbolIconSize) 7,
                                                             PE = { Fill = Color.FromArgb(0, 255, 48, 48) ,
                                                                StrokeWidth = 0,
                                                                 Stroke = Color.Transparent
                                                             },
                                                             point = dataPoint.point
                                                         };
                                            symbols.Add(symbol);
                                        }
 
                                }
                            }
                        }
                        break; //since chart type cannot be known, it is assumed the 1st collection is of line chart
                    }
                }
                e.SceneGraph.AddRange(symbols.ToArray());
            }
        }

Hi utkarsh_bandekar,

Thank you for your reply.

Below is some sample code for accessing the layer id of a particular dataPoint:

((Infragistics.UltraChart.Core.Primitives.Primitive)(dataPoint)).Layer.LayerID

Please let me know if this helps.

Hi,

thanks for the reply.

your solution worked for me.

first i assigned the key property for the chartlayer apperence

chartLayerAppearance.Key = "LineChartLayer";

than in FillSceneGraph event i checked

if (dataPoint.Layer.LayerID.Equals("LineChartLayer"))
{......... 

Hi utkarsh_bandekar,

Thank you for your reply. Glad that you were able to implement your requirement.

Please feel free to contact me if you have any additional questions.

Hi Peter,

i am facing a strange problem in the  ultraChart_FillSceneGraph event of the chart.

there is problem with rounding in NumericTimeDataPoint

The Original value passed to the series data is :- 27.806478019718991

if i check the value in NumericTimeDataPoint.NumericValue in the ultraChart_FillSceneGraph event  it shows me 27.806478019719

i am not getting why it is rounding of the number.

This is creating problem in finding the low an high point in the chart because of this internal rounding by the chart.

I need help ASAP. have to solve this issue urgently

Thanks

utkarsh

Hi utkarsh,

Thank you for your reply.

Glad that your issue has been resolved.

Please feel free to contact me if I can be of further assistance.

Hi,

Thanks for the reply. Following worked for me

(Convert.ToDouble(_chartA3Max.ToString()).Equals(numericTimeDataPoint.NumericValue))


thanks
utkarsh