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Erroneous lines draw on Scene with polylines

DavidHope

My code is drawing country and state borders on a Globe using Polylines

This was working fine in 100.1, I upgraded to 100.2 today and now I'm seeing this...

Any thoughts?

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SomeGISGuy

Problem identified and fix incoming. Expected* to be available in an soon to be released patch update..

Thank you for reporting this!

*pending the usual caveats that it's still in testing, release plans can change etc.

PengfeiLi

Thank you for the bug report.

SomeGISGuy

Thank you! I've reproduced the issue and forwarded it to the 3D rendering team

DavidHope

Pretty simple, add virtually any complex polyline with absolute and dynamic settings (problems also occur with draped vs. absolute, but not as extreme)....

An example:

 GraphicsOverlay mapOL = new GraphicsOverlay();
 mapOL.SceneProperties.SurfacePlacement = SurfacePlacement.Absolute;
 mapOL.RenderingMode = GraphicsRenderingMode.Dynamic;
 Random rnd = new Random();
 for(int i = 0; i<100; i++)
 {
    var lineSymbol = new SimpleLineSymbol() { Color = Colors.White };
    var polyLine1 = new PolylineBuilder(SpatialReferences.Wgs84);
    double lat = 30 + (rnd.NextDouble() * 20);
    double lon = -125 + (rnd.NextDouble() * 60);
    for (int j = 0; j<100; j++)
    {
       lat += 0.5 - (rnd.NextDouble());
       lon += 0.5 - (rnd.NextDouble());
       polyLine1.AddPoint(lon, lat, 1000);
    }
    mapOL.Graphics.Add(new Graphic() 
      { 
         Geometry = polyLine1.ToGeometry(), 
         Symbol = lineSymbol, 
         ZIndex=5
      });
 }

SomeGISGuy

Yikes. Are you able to share a repro. so we can see if we can fix it (and possible give you a workaround)

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