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Labels overlap each other in PieItems

#1

hi Support Team,

i have a problem with Zedgraph and pieitems, when the pieItems are small, the label of them overlap each other (Find Attached picture- Gas overlap the capacity building in this situation )




Is there a way to solve this problem?



in the other words,Is it possible to change their place



my code is:

                        ChangeLabelPosition(((ShapeFileFeatureLayer)((LayerOverlay)currentMap.CustomOverlays[“PaiOverlay”]).Layers[“Cities”]), 100);
                        ZedGraphControl zedGraph = new ZedGraphControl();
                        zedGraph.Size = new Size(400, 100);
                        zedGraph.GraphPane.Fill.Type = FillType.None;
                        zedGraph.GraphPane.Chart.Fill.Type = FillType.None;
                        zedGraph.BringToFront();
                        zedGraph.GraphPane.Border.IsVisible = false;
                        zedGraph.GraphPane.Chart.Border.IsVisible = false;
                        zedGraph.GraphPane.XAxis.IsVisible = false;
                        zedGraph.GraphPane.YAxis.IsVisible = false;
                        zedGraph.GraphPane.Legend.IsVisible = false;
                        zedGraph.GraphPane.Title.IsVisible = false;
                        int count = 0;
                        PieItem pieItem1;
                        FontSpec fs=new FontSpec(“Arial”,8,Color.Black,true,false,false);
                        foreach (var d in data)
                        {
                            if (!d.Nos.HasValue)
                            {
                                continue;
                            }
                            pieItem1 = null;
                            pieItem1 = zedGraph.GraphPane.AddPieSlice(Convert.ToDouble(d.Nos), GetColorFromGeoColor(GeoColor.FromHtml(TypeColorCollection[d.Type].ToString())), 0, d.Type + “(” + Math.Round(d.Nos.Value) + “)”);              
                            pieItem1.LabelDetail.IsVisible = true;
                            pieItem1.LabelDetail.FontSpec.Size = 50;
                            pieItem1.LabelDetail.FontSpec.Family = “Tahoma”;
                            pieItem1.LabelDetail.IsClippedToChartRect = true;



??? how to change the label position or prevent label overlap???/
                            pieItem1.Displacement = 0.1;
                            count++;
                        }
                        zedGraph.AxisChange();
                        e.Bitmap = zedGraph.GraphPane.GetImage();





LablePostion.png (15.5 KB)

#2

Hi Hassan, 
  
 Just like my reply in other topic, we don’t have more experience on the complex situation for the Zedgraph component. 
  
 Have you tried the 2 APIs I suggested before? Maybe you want to do more test to see which API can work for that. 
  
 And I think if anyone who have experience on this issue can reply here is welcome. 
  
 Regards, 
  
 Don