public HelixRenderPackage()
{
points = InitPointGeometry();
lines = InitLineGeometry();
mesh = InitMeshGeometry();
lineStripVertexCounts = new List<int>();
}
/// <summary>
/// Checks if the ray hits the geometry of the model.
/// If there a more than one hit, result returns the hit which is nearest to the ray origin.
/// </summary>
/// <param name="rayWS">Hitring ray from the camera.</param>
/// <param name="hits">results of the hit.</param>
/// <returns>True if the ray hits one or more times.</returns>
protected override bool OnHitTest(IRenderMatrices context, Ray rayWS, ref List <HitTestResult> hits)
{
if (geometryInternal.Octree != null)
{
return(geometryInternal.Octree.HitTest(context, this, ModelMatrix, rayWS, ref hits));
}
else
{
PointGeometry3D pointGeometry3D = this.geometryInternal as PointGeometry3D;
var svpm = context.ScreenViewProjectionMatrix;
var smvpm = this.modelMatrix * svpm;
var clickPoint4 = new Vector4(rayWS.Position + rayWS.Direction, 1);
var pos4 = new Vector4(rayWS.Position, 1);
// var dir3 = new Vector3();
Vector4.Transform(ref clickPoint4, ref svpm, out clickPoint4);
Vector4.Transform(ref pos4, ref svpm, out pos4);
//Vector3.TransformNormal(ref rayWS.Direction, ref svpm, out dir3);
//dir3.Normalize();
var clickPoint = clickPoint4.ToVector3();
var result = new HitTestResult {
IsValid = false, Distance = double.MaxValue
};
var maxDist = this.HitTestThickness;
var lastDist = double.MaxValue;
var index = 0;
foreach (var point in pointGeometry3D.Positions)
{
var p0 = Vector3.TransformCoordinate(point, smvpm);
var pv = p0 - clickPoint;
var dist = pv.Length();
if (dist < lastDist && dist <= maxDist)
{
lastDist = dist;
Vector4 res;
var lp0 = point;
Vector3.Transform(ref lp0, ref this.modelMatrix, out res);
var pvv = res.ToVector3();
result.Distance = (rayWS.Position - res.ToVector3()).Length();
result.PointHit = pvv.ToPoint3D();
result.ModelHit = this;
result.IsValid = true;
result.Tag = index;
}
index++;
}
if (result.IsValid)
{
hits.Add(result);
}
return(result.IsValid);
}
}
public HelixRenderPackage()
{
points = InitPointGeometry();
lines = InitLineGeometry();
mesh = InitMeshGeometry();
lineStripVertexCounts = new List<int>();
Transform = System.Windows.Media.Media3D.Matrix3D.Identity.ToArray();
}
public static GeometryModel3D[] GetModels(PointGeometry3D pointcloud)
{
List<GeometryModel3D> models = new List<GeometryModel3D>();
PointGeometryModel3D model = new PointGeometryModel3D();
// This one is important, otherwise it will be just black
model.Color = Color.White;
model.Geometry = pointcloud;
models.Add(model);
return models.ToArray();
}
public void Clear()
{
points = null;
mesh = null;
lines = null;
points = InitPointGeometry();
mesh = InitMeshGeometry();
lines = InitLineGeometry();
lineStripVertexCounts.Clear();
IsSelected = false;
DisplayLabels = false;
}
private void LoadThreadFunction()
{
var pt = new Potree(new Uri(Filename));
var points = new PointGeometry3D();
var col = new Color4Collection();
var ptPos = new Vector3Collection();
var ptIdx = new IntCollection();
var j = 0;
foreach (var p in pt.Compilation.Points)
{
ptPos.Add(new Vector3(p.x, p.y, p.z));
ptIdx.Add(j);
col.Add(new Color4(p.r/255f, p.g / 255f, p.b / 255f, p.a / 255f));
j++;
}
var additionalTurns = 0;
if ((pt.Compilation.Points.Count / 3) * 3 != pt.Compilation.Points.Count)
{
additionalTurns = ((pt.Compilation.Points.Count / 3 + 1) * 3) - pt.Compilation.Points.Count;
}
for (int i = 0; i < additionalTurns; i++)
{
ptIdx.Add(ptPos.Count);
ptPos.Add(ptPos[ptPos.Count - 1]);
col.Add(col[col.Count - 1]);
}
points.Positions = ptPos;
points.Indices = ptIdx;
points.Colors = col;
Data = points;
}
internal static PointGeometry3D InitPointGeometry()
{
var points = new PointGeometry3D()
{
Positions = new Vector3Collection(),
Indices = new IntCollection(),
Colors = new Color4Collection()
};
return points;
}
public MainViewModel()
{
// titles
this.Title = "Simple Demo";
this.SubTitle = "WPF & SharpDX";
// camera setup
this.Camera = new PerspectiveCamera {
Position = new Point3D(3, 3, 5),
LookDirection = new Vector3D(-3, -3, -5),
UpDirection = new Vector3D(0, 1, 0),
FarPlaneDistance = 5000000
};
// default render technique
this.RenderTechnique = Techniques.RenderBlinn;
// setup lighting
this.AmbientLightColor = new Color4(0.1f, 0.1f, 0.1f, 1.0f);
this.DirectionalLightColor = Color.White;
this.DirectionalLightDirection = new Vector3(-2, -5, -2);
// floor plane grid
this.Grid = LineBuilder.GenerateGrid();
this.GridColor = SharpDX.Color.Black;
this.GridTransform = new Media3D.TranslateTransform3D(-5, -1, -5);
// scene model3d
var b1 = new MeshBuilder();
b1.AddSphere(new Vector3(0, 0, 0), 0.5);
b1.AddBox(new Vector3(0, 0, 0), 1, 0.5, 2, BoxFaces.All);
var meshGeometry = b1.ToMeshGeometry3D();
meshGeometry.Colors = new Color4Collection(meshGeometry.TextureCoordinates.Select(x => x.ToColor4()));
this.Model = meshGeometry;
// lines model3d
var e1 = new LineBuilder();
e1.AddBox(new Vector3(0, 0, 0), 1, 0.5, 2);
this.Lines = e1.ToLineGeometry3D();
// model trafos
this.Model1Transform = new Media3D.TranslateTransform3D(0, 0, 0);
this.Model2Transform = new Media3D.TranslateTransform3D(-2, 0, 0);
this.Model3Transform = new Media3D.TranslateTransform3D(+2, 0, 0);
// model materials
this.RedMaterial = PhongMaterials.Red;
this.GreenMaterial = PhongMaterials.Green;
this.BlueMaterial = PhongMaterials.Blue;
//var diffColor = this.RedMaterial.DiffuseColor;
//diffColor.Alpha = 0.5f;
//this.RedMaterial.DiffuseColor = diffColor;
Points = new PointGeometry3D();
var ptPos = new Vector3Collection();
var ptIdx = new IntCollection();
for (int x = 0; x < 10; x++)
{
for (int y = 0; y < 10; y++)
{
for (int z = 0; z < 10; z++)
{
ptIdx.Add(ptPos.Count);
ptPos.Add(new Vector3(x, y, z));
}
}
}
Points.Positions = ptPos;
Points.Indices = ptIdx;
Text = new BillboardText3D();
for (var i = 0; i < 50; i++)
{
for (var j = 0; j < 50; j++)
{
Text.TextInfo.Add(new TextInfo("Hello World", new Vector3(i,j,0)));
}
}
}
public void Clear()
{
points = null;
mesh = null;
lines = null;
points = InitPointGeometry();
mesh = InitMeshGeometry();
lines = InitLineGeometry();
lineStripVertexCounts.Clear();
Transform = System.Windows.Media.Media3D.Matrix3D.Identity.ToArray();
IsSelected = false;
DisplayLabels = false;
colors = null;
}
public MainViewModel()
{
// titles
Title = "Simple Demo";
SubTitle = "WPF & SharpDX";
// camera setup
Camera = new PerspectiveCamera {
Position = new Point3D(3, 3, 5),
LookDirection = new Vector3D(-3, -3, -5),
UpDirection = new Vector3D(0, 1, 0),
FarPlaneDistance = 5000000
};
// Create a custom render techniques manager that
// only supports Phong and Blinn
RenderTechniquesManager = new CustomRenderTechniquesManager();
RenderTechnique = RenderTechniquesManager.RenderTechniques["RenderCustom"];
EffectsManager = new CustomEffectsManager(RenderTechniquesManager);
// setup lighting
AmbientLightColor = new Color4(0.1f, 0.1f, 0.1f, 1.0f);
DirectionalLightColor = Color.White;
DirectionalLightDirection = new Vector3(-2, -5, -2);
// floor plane grid
Grid = LineBuilder.GenerateGrid();
GridColor = Color.Black;
GridTransform = new Media3D.TranslateTransform3D(-5, -1, -5);
// scene model3d
var b1 = new MeshBuilder();
b1.AddSphere(new Vector3(0, 0, 0), 0.5);
b1.AddBox(new Vector3(0, 0, 0), 1, 0.5, 2, BoxFaces.All);
var meshGeometry = b1.ToMeshGeometry3D();
meshGeometry.Colors = new Color4Collection(meshGeometry.TextureCoordinates.Select(x => x.ToColor4()));
Model = meshGeometry;
// lines model3d
var e1 = new LineBuilder();
e1.AddBox(new Vector3(0, 0, 0), 1, 0.5, 2);
Lines = e1.ToLineGeometry3D();
// model transform
Model1Transform = new Media3D.TranslateTransform3D(0, 0, 0);
Model2Transform = new Media3D.TranslateTransform3D(-2, 0, 0);
Model3Transform = new Media3D.TranslateTransform3D(+2, 0, 0);
// model materials
RedMaterial = PhongMaterials.Red;
GreenMaterial = PhongMaterials.Green;
BlueMaterial = PhongMaterials.Blue;
Points = new PointGeometry3D();
var ptPos = new Vector3Collection();
var ptIdx = new IntCollection();
Text = new BillboardText3D();
for (int x = -5; x <= 5; x++)
{
for (int y = -5; y <= 5; y++)
{
ptIdx.Add(ptPos.Count);
ptPos.Add(new Vector3(x, -1, y));
Text.TextInfo.Add(new TextInfo(string.Format("{0}:{1}", x, y), new Vector3(x, -1, y)));
}
}
Points.Positions = ptPos;
Points.Indices = ptIdx;
}
public static PointGeometry3D ConvertToPointGeometry3D(Points[] points)
{
var geometry = new PointGeometry3D();
var col = new Color4Collection();
var ptPos = new Vector3Collection();
var ptIdx = new IntCollection();
var ptNormals = new Vector3Collection();
var additionalTurns = 0;
foreach (var point in points)
{
ptIdx.Add(ptPos.Count);
ptPos.Add(new Vector3(point.x, point.y, point.z));
col.Add(new Color4(new Color3(point.r / (float)255, point.g / (float)255, point.b / (float)255)));
ptNormals.Add(new Vector3(0, 1, 0));
}
if ((points.Length / 3) * 3 != points.Length)
{
additionalTurns = ((points.Length / 3 + 1) * 3) - points.Length;
}
for (int i = 0; i < additionalTurns; i++)
{
ptIdx.Add(ptPos.Count);
ptPos.Add(ptPos[ptPos.Count - 1]);
col.Add(col[col.Count - 1]);
ptNormals.Add(ptNormals[ptNormals.Count - 1]);
}
geometry.Positions = ptPos;
geometry.Indices = ptIdx;
geometry.Colors = col;
return geometry;
}
private void LoadThreadFunction()
{
PCD wrapper = new PCD();
Points[] rawPoints = wrapper.LoadPointcloud(Filename);
var points = new PointGeometry3D();
var col = new Color4Collection();
var ptPos = new Vector3Collection();
var ptIdx = new IntCollection();
var ptNormals = new Vector3Collection();
var numberOfElements = rawPoints.Length;
var additionalTurns = 0;
foreach (var point in rawPoints)
{
ptIdx.Add(ptPos.Count);
ptPos.Add(new Vector3(point.x, point.z, -point.y));
col.Add(new Color4(new Color3(point.r / (float)255, point.g / (float)255, point.b / (float)255)));
ptNormals.Add(new Vector3(0, 1, 0));
}
if ((rawPoints.Length / 3) * 3 != rawPoints.Length)
{
additionalTurns = ((rawPoints.Length / 3 + 1) * 3) - rawPoints.Length;
}
for (int i = 0; i < additionalTurns; i++)
{
ptIdx.Add(ptPos.Count);
ptPos.Add(ptPos[ptPos.Count-1]);
col.Add(col[col.Count - 1]);
ptNormals.Add(ptNormals[ptNormals.Count - 1]);
}
points.Positions = ptPos;
points.Indices = ptIdx;
points.Colors = col;
//points.Normals = ptNormals;
Data = points;
}
