protected override void OnContentRendered(EventArgs e)
{
// adjusts viewport grid size and step
model1.GetGrid().Min = new Point3D(-5, -5);
model1.GetGrid().Max = new Point3D(+5, +5);
model1.GetGrid().Step = .5;
// declare the function to be used to evaluate the 3D scalar field
ScalarField3D func = new ScalarField3D(myScalarField);
// initialize marching cube algorithm
mc = new MarchingCubes(new Point3D(0, -2.5, 0), 50, .1f, 25, .1f, 25, .1f, func);
mc.IsoLevel = trackBar1.Value;
mc.DoWork();
// iso surface generation
Mesh isoSurf = mc.Result;
// adds the surface to the entities collection with Magenta color
model1.Entities.Add(isoSurf, System.Drawing.Color.Magenta);
// updates the iso level label
isoLevelLabel.Content = "Iso level = " + mc.IsoLevel;
// sets trimetric view
model1.SetView(viewType.Trimetric);
// fits the model in the viewport
model1.ZoomFit();
// refresh the viewport
model1.Invalidate();
base.OnContentRendered(e);
}
private void TestMC()
{
eyeshot.GetGrid().Visible = true;
eyeshot.GetGrid().Min = new Point3D(-5, -5);
eyeshot.GetGrid().Max = new Point3D(+5, +5);
eyeshot.GetGrid().Step = .5;
ScalarField3D func = new ScalarField3D(ScalarFieldFunc);
double resolution = 0.5;
int span = 100;
MarchingCubes mc = new MarchingCubes(new Point3D(-5, -5, -5), span, resolution, span, resolution, span, resolution, func);
mc.IsoLevel = 4;
eyeshot.DoWork(mc);
Mesh res = mc.Result;
res.FlipNormal();
Mesh sphere = Mesh.CreateSphere(Math.Sqrt(mc.IsoLevel), 16, 32);
// eyeshot.Entities.Add(sphere, 0, Color.FromArgb(170, Color.Blue));
eyeshot.Entities.Add(res, 0, Color.FromArgb(170, Color.Red));
eyeshot.Invalidate();
eyeshot.ZoomFit();
}
