3D issues with TeeChart for .NET v2023

[David N.]

Hello,

I have recently upgraded my project from the 2016 library to the latest 2023 one. The problem is that i am experiencing an issue with the 3D graphic bars. When i amply a slight rotation to the graphic, the bars disappear. This issue was not present with the 2016 version. I have attached two images with my initial state and when i apply some rotation.

Initial state:


After rotation:


Thank you.

[Christopher]

Hello,

Using this code:

Code: Select all

        public Form1()
        {

            void TChart1_AfterDraw(object sender, Steema.TeeChart.Drawing.IGraphics3D g)
            {
                tChart1.Header.Text = $"Version: {Utils.Version} Rotation: {tChart1.Aspect.Rotation} Elevation: {tChart1.Aspect.Elevation}";
            }

            InitializeComponent();

            for (int i = 0; i < 4; i++)
            {
                var bar = new Bar(tChart1.Chart);
                bar.FillSampleValues(3);
                bar.MultiBar = MultiBars.None;
                bar.Marks.Visible = false;
            }

            tChart1.Walls.Visible = false;
            tChart1.Aspect.View3D = true;
            tChart1.Aspect.Orthogonal = false;
            tChart1.Aspect.Chart3DPercent = 50;
            tChart1.Aspect.Zoom = 75;
            tChart1.Aspect.Rotation = 290;
            tChart1.Aspect.Elevation = 340;

            tChart1.Tools.Add(typeof(Rotate));

            tChart1.AfterDraw += TChart1_AfterDraw;

            tChart1.Draw();
        }

Against NuGet v.4.2023.06.19, I obtain this for the .NET Framework 4.0 assembly:

Screenshot from 2023-06-22 11-09-34.png (36.73 KiB) Viewed 9855 times

And this for the .NET 6.0 assemblies:

Screenshot from 2023-06-22 11-15-32.png (98.48 KiB) Viewed 9855 times

When I move the Chart around using the Rotate tool I am unable to find a position in which bars disappear. Could you please modify this code so I can reproduce your issue in one (or both) of the .NET runtimes?