Currently I'm working on generating 3D line graphs.
The line series are 160/255 transparent, my problem is that the intersections of successive lineSegments are visible which doesn't look very nice.

I've uploaded a picture of the mentioned issue:
http://stuff.manuel-ernst.de/chart120.png

Perhaps some of you know how to deal with it...

Thank you in advance!

Hello Hans,

The following code demonstrates this approach. It doesn't help for semi-transparent tubes, but for opaque ones the results are fine.

NCartesianChart chart = (NCartesianChart)nChartControl1.Charts[0];
chart.Enable3D = true;
chart.Projection.SetPredefinedProjection(PredefinedProjection.Perspective1);

NLineSeries line = new NLineSeries();
chart.Series.Add(line);
line.DataLabelStyle.Visible = false;
line.LineSegmentShape = LineSegmentShape.Tube;
line.BorderStyle.Width = new NLength(0);
line.LineSize = new NLength(20);
line.FillStyle = new NColorFillStyle(Color.DarkOrange);
line.InflateMargins = true;

line.MarkerStyle.Visible = true;
line.MarkerStyle.BorderStyle.Width = new NLength(0);
line.MarkerStyle.FillStyle = new NColorFillStyle(Color.DarkOrange);
line.MarkerStyle.PointShape = PointShape.Sphere;
line.MarkerStyle.AutoDepth = false;
line.MarkerStyle.Width = new NLength(20);
line.MarkerStyle.Height = new NLength(20);
line.MarkerStyle.Depth = new NLength(20);

for(int i = 0; i < 100; i++)
{
line.Values.Add(Math.Sin(i * 0.05) * Math.Sin(i * 0.1));
}

By the way, www.thomann.de is a great store and is very popular among musicians in Bulgaria.

Best Regards,
Milen Metodiev