public CameraModel3D()
{
var b1 = new MeshBuilder();
b1.AddBox(new Vector3(), 1f, 1f, 1.2f, BoxFaces.All);
var body = new MeshGeometryModel3D()
{
CullMode = CullMode.Back
};
body.Geometry = b1.ToMeshGeometry3D();
body.Material = PhongMaterials.Gray;
body.SceneNode.OnSetRenderTechnique = (h) => { return(h.EffectsManager[DefaultRenderTechniqueNames.Diffuse]); };
this.Children.Add(body);
b1 = new MeshBuilder();
b1.AddCone(new Vector3(0, 0, -1.2f), new Vector3(0, 0f, 0), 0.4f, true, 12);
var lens = new MeshGeometryModel3D()
{
CullMode = CullMode.Back
};
lens.Geometry = b1.ToMeshGeometry3D();
lens.Material = PhongMaterials.Yellow;
lens.SceneNode.OnSetRenderTechnique = (h) => { return(h.EffectsManager[DefaultRenderTechniqueNames.Diffuse]); };
this.Children.Add(lens);
var builder = new LineBuilder();
builder.AddLine(Vector3.Zero, new Vector3(2, 0, 0));
builder.AddLine(Vector3.Zero, new Vector3(0, 2, 0));
builder.AddLine(Vector3.Zero, new Vector3(0, 0, -2));
var mesh = builder.ToLineGeometry3D();
var arrowMeshModel = new LineGeometryModel3D();
arrowMeshModel.Geometry = mesh;
arrowMeshModel.Color = System.Windows.Media.Colors.White;
arrowMeshModel.IsHitTestVisible = false;
int segment = mesh.Positions.Count / 3;
var colors = new Core.Color4Collection(Enumerable.Repeat <Color4>(Color.Black, mesh.Positions.Count));
int i = 0;
for (; i < segment; ++i)
{
colors[i] = Color.Red;
}
for (; i < segment * 2; ++i)
{
colors[i] = Color.Green;
}
for (; i < segment * 3; ++i)
{
colors[i] = Color.Blue;
}
mesh.Colors = colors;
this.Children.Add(arrowMeshModel);
SceneNode.OnTransformChanged += SceneNode_OnTransformChanged;
}
/// <summary>
/// Generates a square grid with a step of 1.0
/// </summary>
/// <returns></returns>
public static LineGeometry3D GenerateGrid(Vector3 plane, int min = 0, int max = 10)
{
var grid = new LineBuilder();
//int width = max - min;
if (plane == Vector3.UnitX)
{
for (int i = min; i <= max; i++)
{
grid.AddLine(new Vector3(0, i, min), new Vector3(0, i, max));
grid.AddLine(new Vector3(0, min, i), new Vector3(0, max, i));
}
}
else if (plane == Vector3.UnitY)
{
for (int i = min; i <= max; i++)
{
grid.AddLine(new Vector3(i, 0, min), new Vector3(i, 0, max));
grid.AddLine(new Vector3(min, 0, i), new Vector3(max, 0, i));
}
}
else
{
for (int i = min; i <= max; i++)
{
grid.AddLine(new Vector3(i, min, 0), new Vector3(i, max, 0));
grid.AddLine(new Vector3(min, i, 0), new Vector3(max, i, 0));
}
}
return(grid.ToLineGeometry3D());
}
public LineGeometryModel3D GetGrid()
{
var lineBilder = new LineBuilder();
for (int x = -1000; x < 1000; x += 100)
{
lineBilder.AddLine(new Vector3(x, 0, -1000), new Vector3(x, 0, 1000));
}
for (int z = -1000; z < 1000; z += 100)
{
lineBilder.AddLine(new Vector3(-1000, 0, z), new Vector3(1000, 0, z));
}
LineGeometryModel3D m = new LineGeometryModel3D();
m.Geometry = lineBilder.ToLineGeometry3D();
m.Color = Color.Black;
m.Transform = new TranslateTransform3D(new Vector3D(0, 0, 0));
m.Attach(Viewport.RenderHost);
return m;
}
public static LineGeometry3D GenerateGrid(Vector3 plane, int min0 = 0, int max0 = 10, int min1 = 0, int max1 = 10, int sizew = 1, int sizeh = 1)
{
var grid = new LineBuilder();
//int width = max - min;
if (plane == Vector3.UnitX)
{
for (int i = min0; i <= max0; i += sizew)
{
grid.AddLine(new Vector3(0, i, min1), new Vector3(0, i, max1));
}
for (int i = min1; i <= max1; i += sizeh)
{
grid.AddLine(new Vector3(0, min0, i), new Vector3(0, max0, i));
}
}
else if (plane == Vector3.UnitY)
{
for (int i = min0; i <= max0; i += sizew)
{
grid.AddLine(new Vector3(i, 0, min1), new Vector3(i, 0, max1));
}
for (int i = min1; i <= max1; i += sizeh)
{
grid.AddLine(new Vector3(min0, 0, i), new Vector3(max0, 0, i));
}
}
else
{
for (int i = min0; i <= max0; i += sizew)
{
grid.AddLine(new Vector3(i, min1, 0), new Vector3(i, max1, 0));
}
for (int i = min1; i <= max1; i += sizeh)
{
grid.AddLine(new Vector3(min0, i, 0), new Vector3(max0, i, 0));
}
}
return(grid.ToLineGeometry3D());
}
/// <summary>
///
/// </summary>
/// <param name="plane"></param>
/// <param name="radius"></param>
/// <param name="segments"></param>
/// <returns></returns>
public static LineGeometry3D GenerateCircle(Vector3 plane, float radius, int segments)
{
if (segments < 3)
{
throw new ArgumentNullException("too few segments, at least 3");
}
var circle = new LineBuilder();
float sectionAngle = (float)(2.0 * Math.PI / segments);
if (plane == Vector3.UnitX)
{
Point3D start = new Point3D(0.0f, 0.0f, radius);
Point3D current = new Point3D(0.0f, 0.0f, radius);
Point3D next = new Point3D(0.0f, 0.0f, 0.0f);
for (int i = 1; i < segments; i++)
{
next.Z = radius * (float)Math.Cos(i * sectionAngle);
next.Y = radius * (float)Math.Sin(i * sectionAngle);
circle.AddLine(current, next);
current = next;
}
circle.AddLine(current, start);
}
else if (plane == Vector3.UnitY)
{
Point3D start = new Point3D(radius, 0.0f, 0.0f);
Point3D current = new Point3D(radius, 0.0f, 0.0f);
Point3D next = new Point3D(0.0f, 0.0f, 0.0f);
for (int i = 1; i < segments; i++)
{
next.X = radius * (float)Math.Cos(i * sectionAngle);
next.Z = radius * (float)Math.Sin(i * sectionAngle);
circle.AddLine(current, next);
current = next;
}
circle.AddLine(current, start);
}
else
{
Point3D start = new Point3D(0.0f, radius, 0.0f);
Point3D current = new Point3D(0.0f, radius, 0.0f);
Point3D next = new Point3D(0.0f, 0.0f, 0.0f);
for (int i = 1; i < segments; i++)
{
next.Y = radius * (float)Math.Cos(i * sectionAngle);
next.X = radius * (float)Math.Sin(i * sectionAngle);
circle.AddLine(current, next);
current = next;
}
circle.AddLine(current, start);
}
return(circle.ToLineGeometry3D());
}
/// <summary>
/// Returns a line geometry of the axis-aligned bounding-box of the given mesh.
/// </summary>
/// <param name="mesh">Input mesh for the computation of the b-box</param>
/// <returns></returns>
public static LineGeometry3D GenerateBoundingBox(global::SharpDX.BoundingBox bb)
{
var cc = bb.GetCorners();
var ll = new LineBuilder();
ll.AddLine(cc[0], cc[1]);
ll.AddLine(cc[1], cc[2]);
ll.AddLine(cc[2], cc[3]);
ll.AddLine(cc[3], cc[0]);
ll.AddLine(cc[4], cc[5]);
ll.AddLine(cc[5], cc[6]);
ll.AddLine(cc[6], cc[7]);
ll.AddLine(cc[7], cc[4]);
ll.AddLine(cc[0], cc[4]);
ll.AddLine(cc[1], cc[5]);
ll.AddLine(cc[2], cc[6]);
ll.AddLine(cc[3], cc[7]);
return(ll.ToLineGeometry3D());
}
public CameraModel3D()
{
var b1 = new MeshBuilder();
b1.AddBox(new Vector3(), 1f, 1f, 1.2f, BoxFaces.All);
var body = new MeshGeometryModel3D()
{
CullMode = CullMode.Back
};
body.Geometry = b1.ToMeshGeometry3D();
body.Material = new DiffuseMaterial()
{
DiffuseColor = Color.Gray
};
this.Children.Add(body);
b1 = new MeshBuilder();
b1.AddCone(new Vector3(0, 0, -1.2f), new Vector3(0, 0f, 0), 0.4f, true, 12);
var lens = new MeshGeometryModel3D()
{
CullMode = CullMode.Back
};
lens.Geometry = b1.ToMeshGeometry3D();
lens.Material = new DiffuseMaterial()
{
DiffuseColor = Color.Yellow
};
this.Children.Add(lens);
var builder = new LineBuilder();
builder.AddLine(Vector3.Zero, new Vector3(2, 0, 0));
builder.AddLine(Vector3.Zero, new Vector3(0, 2, 0));
builder.AddLine(Vector3.Zero, new Vector3(0, 0, -2));
var mesh = builder.ToLineGeometry3D();
var arrowMeshModel = new LineGeometryModel3D
{
Geometry = mesh,
Color = System.Windows.Media.Colors.White,
IsHitTestVisible = false
};
int segment = mesh.Positions.Count / 3;
var colors = new Color4Collection(Enumerable.Repeat <Color4>(Color.Black, mesh.Positions.Count));
int i = 0;
for (; i < segment; ++i)
{
colors[i] = Color.Red;
}
for (; i < segment * 2; ++i)
{
colors[i] = Color.Green;
}
for (; i < segment * 3; ++i)
{
colors[i] = Color.Blue;
}
mesh.Colors = colors;
this.Children.Add(arrowMeshModel);
SceneNode.TransformChanged += SceneNode_OnTransformChanged;
}
/// <summary>
/// The on children changed.
/// </summary>
protected virtual void OnChildrenChanged()
{
this.translateXL.Length = 0.5;
this.translateYL.Length = 0.5;
this.translateZL.Length = 0.5;
this.translateXR.Length = 0.5;
this.translateYR.Length = 0.5;
this.translateZR.Length = 0.5;
this.Children.Clear();
if (this.CanTranslateX)
{
this.Children.Add(this.translateXL);
this.Children.Add(this.translateXR);
}
if (this.CanTranslateY)
{
this.Children.Add(this.translateYL);
this.Children.Add(this.translateYR);
}
if (this.CanTranslateZ)
{
this.Children.Add(this.translateZL);
this.Children.Add(this.translateZR);
}
{
var g = new LineBuilder();
g.AddLine(new Vector3(0, 0, 0), new Vector3(1, 0, 0));
g.AddLine(new Vector3(1, 0, 0), new Vector3(1, 1, 0));
g.AddLine(new Vector3(1, 1, 0), new Vector3(0, 1, 0));
g.AddLine(new Vector3(0, 1, 0), new Vector3(0, 0, 0));
this.selectionBounds = new LineGeometryModel3D()
{
Thickness = 3,
Smoothness = 2,
Color = Color.Red,
IsThrowingShadow = false,
Geometry = g.ToLineGeometry3D(),
};
this.Children.Add(this.selectionBounds);
}
}
/// <summary>
/// Generate a simple Polygon and then triangulate it.
/// The Result is then Displayed.
/// </summary>
/// <param name="sender">The Sender (i.e. the Button)</param>
/// <param name="e">The routet Event Args</param>
private void generatePolygonButton_Click(object sender, RoutedEventArgs e)
{
// Generate random Polygon
var random = new Random();
var cnt = mViewModel.PointCount;
mPolygonPoints = new List<Vector2>();
var angle = 0f;
var angleDiff = 2f * (Single)Math.PI / cnt;
var radius = 4f;
// Random Radii for the Polygon
var radii = new List<float>();
var innerRadii = new List<float>();
for (int i = 0; i < cnt; i++)
{
radii.Add(random.NextFloat(radius * 0.9f, radius * 1.1f));
innerRadii.Add(random.NextFloat(radius * 0.2f, radius * 0.3f));
}
var hole1 = new List<Vector2>();
var hole2 = new List<Vector2>();
var holeDistance = 2f;
var holeAngle = random.NextFloat(0, (float)Math.PI * 2);
var cos = (float)Math.Cos(holeAngle);
var sin = (float)Math.Sin(holeAngle);
var offset1 = new Vector2(holeDistance * cos, holeDistance * sin);
var offset2 = new Vector2(-holeDistance * cos, -holeDistance * sin);
for (int i = 0; i < cnt; i++)
{
// Flatten a bit
var radiusUse = radii[i];
mPolygonPoints.Add(new Vector2(radii[i] * (Single)Math.Cos(angle), radii[i] * (Single)Math.Sin(angle)));
hole1.Add(offset1 + new Vector2(innerRadii[i] * (Single)Math.Cos(-angle), innerRadii[i] * (Single)Math.Sin(-angle)));
hole2.Add(offset2 + new Vector2(innerRadii[i] * (Single)Math.Cos(-angle), innerRadii[i] * (Single)Math.Sin(-angle)));
angle += angleDiff;
}
var holes = new List<List<Vector2>>() { hole1, hole2 };
// Triangulate and measure the Time needed for the Triangulation
var before = DateTime.Now;
var sLTI = SweepLinePolygonTriangulator.Triangulate(mPolygonPoints, holes);
var after = DateTime.Now;
// Generate the Output
var geometry = new HelixToolkit.Wpf.SharpDX.MeshGeometry3D();
geometry.Positions = new HelixToolkit.Wpf.SharpDX.Core.Vector3Collection();
geometry.Normals = new HelixToolkit.Wpf.SharpDX.Core.Vector3Collection();
foreach (var point in mPolygonPoints.Union(holes.SelectMany(h => h)))
{
geometry.Positions.Add(new Vector3(point.X, 0, point.Y + 5));
geometry.Normals.Add(new Vector3(0, 1, 0));
}
geometry.Indices = new HelixToolkit.Wpf.SharpDX.Core.IntCollection(sLTI);
triangulatedPolygon.Geometry = geometry;
var lb = new LineBuilder();
for (int i = 0; i < sLTI.Count; i += 3)
{
lb.AddLine(geometry.Positions[sLTI[i]], geometry.Positions[sLTI[i + 1]]);
lb.AddLine(geometry.Positions[sLTI[i + 1]], geometry.Positions[sLTI[i + 2]]);
lb.AddLine(geometry.Positions[sLTI[i + 2]], geometry.Positions[sLTI[i]]);
}
mViewModel.LineGeometry = lb.ToLineGeometry3D();
// Set the Lines if activated
if (mViewModel.ShowTriangleLines)
{
lineTriangulatedPolygon.Geometry = mViewModel.LineGeometry;
}
else
{
lineTriangulatedPolygon.Geometry = null;
}
// Set the InfoLabel Text
var timeNeeded = (after - before).TotalMilliseconds;
infoLabel.Content = String.Format("Last triangulation of {0} Points took {1:0.##} Milliseconds!", triangulatedPolygon.Geometry.Positions.Count, timeNeeded);
}
public static LineGeometry3D CreatePathLines(this IList <BoundingBox> path)
{
Vector3[] verts = new Vector3[8];
var builder = new LineBuilder();
foreach (var box in path)
{
verts[0] = box.Minimum;
verts[1] = new Vector3(box.Minimum.X, box.Minimum.Y, box.Maximum.Z); //Z
verts[2] = new Vector3(box.Minimum.X, box.Maximum.Y, box.Minimum.Z); //Y
verts[3] = new Vector3(box.Maximum.X, box.Minimum.Y, box.Minimum.Z); //X
verts[7] = box.Maximum;
verts[4] = new Vector3(box.Maximum.X, box.Maximum.Y, box.Minimum.Z); //Z
verts[5] = new Vector3(box.Maximum.X, box.Minimum.Y, box.Maximum.Z); //Y
verts[6] = new Vector3(box.Minimum.X, box.Maximum.Y, box.Maximum.Z); //X
builder.AddLine(verts[0], verts[1]);
builder.AddLine(verts[0], verts[2]);
builder.AddLine(verts[0], verts[3]);
builder.AddLine(verts[7], verts[4]);
builder.AddLine(verts[7], verts[5]);
builder.AddLine(verts[7], verts[6]);
builder.AddLine(verts[1], verts[6]);
builder.AddLine(verts[1], verts[5]);
builder.AddLine(verts[4], verts[2]);
builder.AddLine(verts[4], verts[3]);
builder.AddLine(verts[2], verts[6]);
builder.AddLine(verts[3], verts[5]);
}
return(builder.ToLineGeometry3D());
}
public static void CreateOctreeLineModel(this IOctree tree, LineBuilder builder)
{
if (tree == null)
{
return;
}
var box = tree.Bound;
Vector3[] verts = new Vector3[8];
verts[0] = box.Minimum;
verts[1] = new Vector3(box.Minimum.X, box.Minimum.Y, box.Maximum.Z); //Z
verts[2] = new Vector3(box.Minimum.X, box.Maximum.Y, box.Minimum.Z); //Y
verts[3] = new Vector3(box.Maximum.X, box.Minimum.Y, box.Minimum.Z); //X
verts[7] = box.Maximum;
verts[4] = new Vector3(box.Maximum.X, box.Maximum.Y, box.Minimum.Z); //Z
verts[5] = new Vector3(box.Maximum.X, box.Minimum.Y, box.Maximum.Z); //Y
verts[6] = new Vector3(box.Minimum.X, box.Maximum.Y, box.Maximum.Z); //X
builder.AddLine(verts[0], verts[1]);
builder.AddLine(verts[0], verts[2]);
builder.AddLine(verts[0], verts[3]);
builder.AddLine(verts[7], verts[4]);
builder.AddLine(verts[7], verts[5]);
builder.AddLine(verts[7], verts[6]);
builder.AddLine(verts[1], verts[6]);
builder.AddLine(verts[1], verts[5]);
builder.AddLine(verts[4], verts[2]);
builder.AddLine(verts[4], verts[3]);
builder.AddLine(verts[2], verts[6]);
builder.AddLine(verts[3], verts[5]);
if (tree.HasChildren)
{
foreach (IOctree child in tree.ChildNodes)
{
if (child != null)
{
CreateOctreeLineModel(child, builder);
}
}
}
}
/// <summary>
///
/// </summary>
/// <param name="plane"></param>
/// <param name="radius"></param>
/// <param name="segments"></param>
/// <returns></returns>
public static LineGeometry3D GenerateCircle(Vector3 plane, float radius, int segments)
{
if (segments < 3)
{
throw new ArgumentNullException("too few segments, at least 3");
}
var circle = new LineBuilder();
float sectionAngle = (float)(2.0 * Math.PI / segments);
if (plane == Vector3.UnitX)
{
Point3D start = new Point3D(0.0f, 0.0f, radius);
Point3D current = new Point3D(0.0f, 0.0f, radius);
Point3D next = new Point3D(0.0f, 0.0f, 0.0f);
for (int i = 1; i < segments; i++)
{
next.Z = radius * (float)Math.Cos(i * sectionAngle);
next.Y = radius * (float)Math.Sin(i * sectionAngle);
circle.AddLine(current, next);
current = next;
}
circle.AddLine(current, start);
}
else if (plane == Vector3.UnitY)
{
Point3D start = new Point3D(radius, 0.0f, 0.0f);
Point3D current = new Point3D(radius, 0.0f, 0.0f);
Point3D next = new Point3D(0.0f, 0.0f, 0.0f);
for (int i = 1; i < segments; i++)
{
next.X = radius * (float)Math.Cos(i * sectionAngle);
next.Z = radius * (float)Math.Sin(i * sectionAngle);
circle.AddLine(current, next);
current = next;
}
circle.AddLine(current, start);
}
else
{
Point3D start = new Point3D(0.0f, radius, 0.0f);
Point3D current = new Point3D(0.0f, radius, 0.0f);
Point3D next = new Point3D(0.0f, 0.0f, 0.0f);
for (int i = 1; i < segments; i++)
{
next.Y = radius * (float)Math.Cos(i * sectionAngle);
next.X = radius * (float)Math.Sin(i * sectionAngle);
circle.AddLine(current, next);
current = next;
}
circle.AddLine(current, start);
}
return circle.ToLineGeometry3D();
}
/// <summary>
/// Returns a line geometry of the axis-aligned bounding-box of the given mesh.
/// </summary>
/// <param name="mesh">Input mesh for the computation of the b-box</param>
/// <returns></returns>
public static LineGeometry3D GenerateBoundingBox(global::SharpDX.BoundingBox bb)
{
var cc = bb.GetCorners();
var ll = new LineBuilder();
ll.AddLine(cc[0], cc[1]);
ll.AddLine(cc[1], cc[2]);
ll.AddLine(cc[2], cc[3]);
ll.AddLine(cc[3], cc[0]);
ll.AddLine(cc[4], cc[5]);
ll.AddLine(cc[5], cc[6]);
ll.AddLine(cc[6], cc[7]);
ll.AddLine(cc[7], cc[4]);
ll.AddLine(cc[0], cc[4]);
ll.AddLine(cc[1], cc[5]);
ll.AddLine(cc[2], cc[6]);
ll.AddLine(cc[3], cc[7]);
return ll.ToLineGeometry3D();
}
/// <summary>
/// Generates a square grid with a step of 1.0
/// </summary>
/// <returns></returns>
public static LineGeometry3D GenerateGrid(Vector3 plane, int min = 0, int max = 10)
{
var grid = new LineBuilder();
//int width = max - min;
if (plane == Vector3.UnitX)
{
for (int i = min; i <= max; i++)
{
grid.AddLine(new Vector3(0, i, min), new Vector3(0, i, max));
grid.AddLine(new Vector3(0, min, i), new Vector3(0, max, i));
}
}
else if (plane == Vector3.UnitY)
{
for (int i = min; i <= max; i++)
{
grid.AddLine(new Vector3(i, 0, min), new Vector3(i, 0, max));
grid.AddLine(new Vector3(min, 0, i), new Vector3(max, 0, i));
}
}
else
{
for (int i = min; i <= max; i++)
{
grid.AddLine(new Vector3(i, min, 0), new Vector3(i, max, 0));
grid.AddLine(new Vector3(min, i, 0), new Vector3(max, i, 0));
}
}
return grid.ToLineGeometry3D();
}