public ExplodingMesh(MeshGeometry3D inputMesh, Point3D hitpos)
{
var mesh = MeshGeometryHelper.NoSharedVertices(inputMesh);
double cx, cy, cz;
cx = cy = cz = 0;
for (int i = 0; i < mesh.Positions.Count; i++)
{
cx += mesh.Positions[i].X;
cy += mesh.Positions[i].Y;
cz += mesh.Positions[i].Z;
}
int n = mesh.Positions.Count;
var center = new Point3D(cx / n, cy / n, cz / n);
integrator = new VerletIntegrator();
integrator.Resize(mesh.Positions.Count);
var r = new Random();
for (int i = 0; i < mesh.Positions.Count; i++)
{
var delta = mesh.Positions[i] - center;
delta.Normalize();
integrator.Positions[i] = mesh.Positions[i] + delta * (1 + r.NextDouble() * 2);
integrator.Positions0[i] = mesh.Positions[i];
integrator.Accelerations[i] = new Vector3D(0, 0, -1000);
integrator.InverseMass[i] = 0.01;
}
integrator.CreateConstraintsByMesh(mesh, 0.7);
integrator.AddFloor(0.3);
this.Mesh = mesh;
watch.Start();
}
public ExplodingMesh(MeshGeometry3D inputMesh, Point3D hitpos)
{
var mesh = MeshGeometryHelper.NoSharedVertices(inputMesh);
double cx, cy, cz;
cx = cy = cz = 0;
for (int i = 0; i < mesh.Positions.Count; i++)
{
cx += mesh.Positions[i].X;
cy += mesh.Positions[i].Y;
cz += mesh.Positions[i].Z;
}
int n = mesh.Positions.Count;
var center = new Point3D(cx / n, cy / n, cz / n);
integrator = new VerletIntegrator();
integrator.Resize(mesh.Positions.Count);
var r = new Random();
for (int i = 0; i < mesh.Positions.Count; i++)
{
var delta = mesh.Positions[i] - center;
delta.Normalize();
integrator.Positions[i] = mesh.Positions[i] + delta * (1 + r.NextDouble() * 2);
integrator.Positions0[i] = mesh.Positions[i];
integrator.Accelerations[i] = new Vector3D(0, 0, -1000);
integrator.InverseMass[i] = 0.01;
}
integrator.CreateConstraintsByMesh(mesh, 0.7);
integrator.AddFloor(0.3);
this.Mesh = mesh;
watch.Start();
}
public Flag(string image)
{
Mesh = new MeshGeometry3D();
Material = MaterialHelper.CreateImageMaterial(image);
Damping = 0.98;
integrator = new VerletIntegrator() { Iterations = 4, Damping = this.Damping };
WindSpeed = 6;
WindDirection = 180;
PoleHeight = 12;
Height = 3;
Length = 4;
Mass = 0.8;
}
public Flag(string image)
{
Mesh = new MeshGeometry3D();
Material = MaterialHelper.CreateImageMaterial(image);
Damping = 0.98;
integrator = new VerletIntegrator()
{
Iterations = 4, Damping = this.Damping
};
WindSpeed = 6;
WindDirection = 180;
PoleHeight = 12;
Height = 3;
Length = 4;
Mass = 0.8;
}
public MainViewModel(MainWindow mainWindow)
{
// TODO: Complete member initialization
this.mainWindow = mainWindow;
Model3DGroup modelGroup = new Model3DGroup();
TubeVisual3D tube1 = GenerateTube();
RectangleVisual3D rectangle = GenerateRectangle();
SphereVisual3D sphere = new SphereVisual3D()
{
Center = new Point3D(1.5, 2.5, -0.7), Radius = 2
};
//modelGroup.Children.Add(tube1.Model);
//modelGroup.Children.Add(rectangle.Model);
//modelGroup.Children.Add(sphere.Model);
/*
*
* Point3D point;
* Point3D point2;
* Point3D point3;
* Point3D point4;
* AddElementsPart2(modelGroup, out point, out point2, out point3, out point4);
*
*
* TubeVisual3D path = new TubeVisual3D()
* {
* Path = new Point3DCollection(new List<Point3D>(){
* point + new Vector3D(0, 0, 20),
* point2 + new Vector3D(0, 0, 19),
* point3 + new Vector3D(0, 0, 18),
* point4 + new Vector3D(0, 0, 17)
* }),
* Diameter = 0.5,
* ThetaDiv = 20,
* IsPathClosed = false,
* Fill = Brushes.Green
* //Fill = new Brush() { Colors.Blue}
* };
*
* modelGroup.Children.Add(path.Content);
*
*/
//AddSolidBox(modelGroup);
//AddRevolved(modelGroup);
HelixVisual3D helixItem = new HelixVisual3D();
helixItem.Fill = new SolidColorBrush(Colors.Violet);
helixItem.Origin = new Point3D(0, 0, -0.45);
helixItem.Diameter = 0.1;
helixItem.Turns = 2;
helixItem.Length = 0.9;
helixItem.Radius = 0.35;
//modelGroup.Children.Add(helixItem.Content);
//modelGroup.Children.Add(box.Content);
//<helix:HelixVisual3D
//Origin="0 0 -0.45"
//Diameter="0.1"
//Turns="2"
//Length="0.9"
//Radius="0.35"
//Fill="Violet"
//Visible="{Binding IsChecked, ElementName=HelixVisible}"/>
numberOfPoints = 100;
// wireLines = new WireLines { Color = Colors.Black, Thickness = 3, };
Points = new Point3DCollection(GeneratePoints(numberOfPoints, 7000 * 0.001));
//wireLines.Lines = Points;
//modelGroup.Children.Add(wireLines.Content);
var y0 = 0d;
var theta = Math.PI / 180 * 30;
var roofBuilder = new MeshBuilder(false, false);
var y1 = y0 + Math.Tan(theta) * 5 / 2;
var p0 = new Point(0, y1);
var p1 = new Point(5 / 2 + 0.2 * Math.Cos(theta), y0 - 0.2 * Math.Sin(theta));
var p2 = new Point(p1.X + 0.1 * Math.Sin(theta), p1.Y + 0.1 * Math.Cos(theta));
var p3 = new Point(0, y1 + 0.1 / Math.Cos(theta));
var p4 = new Point(-p2.X, p2.Y);
var p5 = new Point(-p1.X, p1.Y);
IList <Point> roofSection = new List <Point>()
{
p0, p1, p1, p2, p2, p3, p3, p4, p4, p5, p5, p0
};
var roofAxisX = new Vector3D(0, -1, 0);
var roofAxisY = new Vector3D(0, 0, 1);
var roofOrigin = new Point3D(1, 1, 1);
//roofBuilder.AddPolygon(roofSection, roofAxisX, roofAxisY, roofOrigin);
Point3DCollection simplePoly = new System.Windows.Media.Media3D.Point3DCollection(
new List <Point3D>()
{
new Point3D(1, 0, 1),
new Point3D(1, 1, 1),
new Point3D(0, 1, 1),
new Point3D(0, 0, 1),
/*
* //new Point3D(1,0, 1),
* new Point3D(0,0, -1),
* new Point3D(1,0, -1),
* new Point3D(1,1, -1),
* new Point3D(0,1, -1),
* //new Point3D(1,0, 1),
* new Point3D(0,0, -1),
* new Point3D(0,0, 1),
*/
}
);
roofBuilder.AddPolygon(simplePoly);
//roofBuilder.AddRectangularMesh()
GeometryModel3D roofGeometry = new GeometryModel3D();
//var material = MaterialHelper.CreateMaterial(Brushes.LightBlue, ambient: 77, freeze: false);
var material = MaterialHelper.CreateMaterial(Colors.LawnGreen, 0.25);
roofGeometry.Material = material;
roofGeometry.BackMaterial = material;
roofGeometry.Geometry = roofBuilder.ToMesh(true);
modelGroup.Children.Add(roofGeometry);
//ScreenSpaceLines3D Wireframe = new ScreenSpaceLines3D();
//Wireframe.Thickness = 2;
//Wireframe.Color = Colors.Black;
//Wireframe.Points = simplePoly;
////Wireframe.MakeWireframe(roofGeometry);
//modelGroup.Children.Add(Wireframe.Content);
var Mesh = new MeshGeometry3D();
//var Material = MaterialHelper.CreateImageMaterial(image);
var Damping = 0.98;
var integrator = new VerletIntegrator()
{
Iterations = 4, Damping = 0.98
};
var WindSpeed = 6;
var WindDirection = 180;
var PoleHeight = 12;
var Height = 3;
var Length = 4;
var Mass = 0.8;
var m = 48;
var n = 32;
var pts = new Point3D[n, m];
for (int i = 0; i < n; i++)
{
for (int j = 0; j < m; j++)
{
pts[i, j] = new Point3D(-Length * j / (m - 1), 0, PoleHeight - Height * i / (n - 1));
}
}
var pts2 = new Point3D[2, 4];
for (int i = 0; i < 2; i++)
{
for (int j = 0; j < 4; j++)
{
double x = 0, z = 0;
if (i == 0)
{
x = 0; z = 0;
}
if (i == 1)
{
x = 1; z = 0;
}
if (i == 2)
{
x = 1; z = 1;
}
if (i == 3)
{
x = 0; z = 1;
}
pts[i, j] = new Point3D(x, i, PoleHeight - z);
}
}
var mb = new MeshBuilder(false, true);
//mb.AddRectangularMesh(pts, null, false, false);
mb.AddRectangularMesh(pts, null, false, false);
Mesh = mb.ToMesh();
var gradientMaterial = CreateGradientBrushMaterial();
gradientMaterial = MaterialHelper.CreateMaterial(Colors.LightBlue, 0.25);
GeometryModel3D meshGeometry = new GeometryModel3D();
meshGeometry.Geometry = Mesh;
meshGeometry.Material = gradientMaterial;
meshGeometry.BackMaterial = gradientMaterial;
modelGroup.Children.Add(meshGeometry);
this.Model = modelGroup;
}
