public void LoadStl(string path)
{
var reader = new StLReader();
var objCol = reader.Read(path);
AttachModelList(objCol);
}
public void Read_Bottle_ValidModel()
{
var r = new StLReader();
var model = r.Read(@"Models\stl\bottle.stl");
Assert.AreEqual("FLIRIS", r.Header);
Assert.AreEqual(1, model.Children.Count);
var m0 = (MeshGeometry3D)((GeometryModel3D)model.Children[0]).Geometry;
Assert.AreEqual(1240, m0.TriangleIndices.Count / 3);
}
public override void Calculate()
{
if (InputPorts[0].Data == null)
{
return;
}
if (InputPorts[0].Data is string)
{
var extension = Path.GetExtension(InputPorts[0].Data as string);
var flag = false;
switch (extension)
{
case ".obj":
var currentHelixObjReader = new ObjReader();
try
{
var objModel = currentHelixObjReader.Read((string)InputPorts[0].Data);
var modelGroup = new GroupModel3D();
var modelGeometry = new Element3DCollection();
modelGeometry.AddRange(
objModel.Select(
x =>
new MeshGeometryModel3D
{
Geometry = x.Geometry as MeshGeometry3D,
Material = x.Material
}));
modelGroup.Children = modelGeometry;
Dispatcher.BeginInvoke((Action) delegate { _control.ViewPort3D.Items.Add(modelGroup); });
}
catch (Exception)
{
// ignore
}
break;
case ".stl":
var currentHelixStlReader = new StLReader();
try
{
var myModel = currentHelixStlReader.Read((string)InputPorts[0].Data);
// _control.ViewPort3D.Items.Add(myModel);
}
catch (Exception)
{
// ignore
}
break;
}
}
}
public void Read_BinaryBottle_ValidModel()
{
// ASCII format converted to BINARY by MeshLab
var r = new StLReader();
var model = r.Read(@"Models\stl\binary\bottle.stl");
Assert.AreEqual("VCG", r.Header);
Assert.AreEqual(1, model.Children.Count);
var m0 = (MeshGeometry3D)((GeometryModel3D)model.Children[0]).Geometry;
Assert.AreEqual(1240, m0.TriangleIndices.Count / 3);
}
public void Read_Sphere_ValidModel()
{
var r = new StLReader();
var model = r.Read(@"Models\stl\sphere.stl");
Assert.AreEqual(1, model.Children.Count);
var m0 = (MeshGeometry3D)((GeometryModel3D)model.Children[0]).Geometry;
Assert.AreEqual(228, m0.TriangleIndices.Count / 3);
}
public void Read_Bottle_DefaultMaterialChanged()
{
var r = new StLReader();
r.DefaultMaterial = MaterialHelper.CreateMaterial(Colors.Aqua);
var model = r.Read(@"Models\stl\bottle.stl");
Assert.AreEqual(1, model.Children.Count);
var gm0 = (GeometryModel3D)model.Children[0];
var m0 = (MaterialGroup)gm0.Material;
var dm = (DiffuseMaterial)m0.Children[0];
Assert.AreEqual(Colors.Aqua, ((SolidColorBrush)dm.Brush).Color);
}
public void Read_Cube_ValidModel()
{
// reader does not yet support quads
var r = new StLReader();
var model = r.Read(@"Models\stl\cube.stl");
Assert.AreEqual(1, model.Children.Count);
var m0 = (MeshGeometry3D)((GeometryModel3D)model.Children[0]).Geometry;
// Expects 6 quad faces => 12 triangles
Assert.AreEqual(12, m0.TriangleIndices.Count / 3);
}
public void Read_Bottle_ValidModel()
{
var r = new StLReader();
var model = r.Read(@"Models\stl\bottle.stl");
Assert.AreEqual("FLIRIS", r.Header);
Assert.AreEqual(1, model.Children.Count);
var m0 = (MeshGeometry3D)((GeometryModel3D)model.Children[0]).Geometry;
Assert.AreEqual(1240, m0.TriangleIndices.Count / 3);
}
public void Read_Cube_ValidModel()
{
// reader does not yet support quads
var r = new StLReader();
var model = r.Read(@"Models\stl\cube.stl");
Assert.AreEqual(1, model.Children.Count);
var m0 = (MeshGeometry3D)((GeometryModel3D)model.Children[0]).Geometry;
// Expects 6 quad faces => 12 triangles
Assert.AreEqual(12, m0.TriangleIndices.Count / 3);
}
public void Read_BinaryBottle_ValidModel()
{
// ASCII format converted to BINARY by MeshLab
var r = new StLReader();
var model = r.Read(@"Models\stl\binary\bottle.stl");
Assert.AreEqual("VCG", r.Header);
Assert.AreEqual(1, model.Children.Count);
var m0 = (MeshGeometry3D)((GeometryModel3D)model.Children[0]).Geometry;
Assert.AreEqual(1240, m0.TriangleIndices.Count / 3);
}
public void Read_BottleFromStream_ValidModel()
{
Model3DGroup model;
using (var s = File.OpenRead(@"Models\stl\bottle.stl"))
{
var r = new StLReader();
model = r.Read(s);
}
Assert.AreEqual(1, model.Children.Count);
var m0 = (MeshGeometry3D)((GeometryModel3D)model.Children[0]).Geometry;
Assert.AreEqual(1240, m0.TriangleIndices.Count / 3);
}
public static Geometry3D GetConeModel(string coneFile)
{
Geometry3D geometry = null;
var reader = new StLReader();
var objList = reader.Read(coneFile);
if (objList?.Count > 0)
{
geometry = objList[0].Geometry;
geometry.UpdateOctree();
}
return(geometry);
}
public void Read_Bottle_DefaultMaterialChanged()
{
var r = new StLReader();
r.DefaultMaterial = MaterialHelper.CreateMaterial(Colors.Aqua);
var model = r.Read(@"Models\stl\bottle.stl");
Assert.AreEqual(1, model.Children.Count);
var gm0 = (GeometryModel3D)model.Children[0];
var m0 = (MaterialGroup)gm0.Material;
var dm = (DiffuseMaterial)m0.Children[0];
Assert.AreEqual(Colors.Aqua, ((SolidColorBrush)dm.Brush).Color);
}
public void Read_BottleFromStream_ValidModel()
{
Model3DGroup model;
using (var s = File.OpenRead(@"Models\stl\bottle.stl"))
{
var r = new StLReader();
model = r.Read(s);
}
Assert.AreEqual(1, model.Children.Count);
var m0 = (MeshGeometry3D)((GeometryModel3D)model.Children[0]).Geometry;
Assert.AreEqual(1240, m0.TriangleIndices.Count / 3);
}
public MeshVisualizer()
{
InitializeComponent();
var reader = new StLReader();
reader.DefaultMaterial = Materials.Green;
var model = reader.Read(@"D:\Messe.stl");
model.Freeze();
viewport.Children.Add(new ModelVisual3D()
{
Content = model
});
}
private static Geometry3D LoadGeometry(string geometryFile)
{
Geometry3D geometry = null;
if (!string.IsNullOrEmpty(geometryFile))
{
var reader = new StLReader();
var objList = reader.Read(geometryFile);
if (objList?.Count > 0)
{
geometry = objList[0].Geometry;
geometry.UpdateOctree();
}
}
return(geometry);
}
/// <summary>
/// Display 3D Model
/// </summary>
/// <param name="model">Path to the Model file</param>
/// <returns>3D Model Content</returns>
private Model3DGroup Display3d(string filePath)
{
Model3DGroup device = null;
try
{
//Adding a gesture here
viewPort3d.RotateGesture = new MouseGesture(MouseAction.LeftClick);
//Import 3D model file
StLReader read = new StLReader();
//Load the 3D model file
device = read.Read(filePath);
}
catch (Exception e)
{
// Handle exception in case can not file 3D model
MessageBox.Show("Exception Error : " + e.StackTrace);
}
return(device);
}
protected override Bitmap GetThumbnailImage(uint width) // Implemented abstract function in the base class
{
string debug = (string)Registry.GetValue(@"HKEY_CURRENT_USER\Software\Marlin3DprinterTool", "Debug", "false");
Logger(debug, "Creating Memorystream", EventLogEntryType.Information, 100);
MemoryStream memStream = new MemoryStream();
Logger(debug, "Creating Thread", EventLogEntryType.Information, 200);
Thread thread = new Thread(() =>
{
Logger(debug, "Try Thread", EventLogEntryType.Information, 210);
try
{
Logger(debug, "Get Color", EventLogEntryType.Information, 220);
string color = (string)Registry.GetValue(@"HKEY_CURRENT_USER\Software\Marlin3DprinterTool", "Color", "Blue");
Logger(debug, $"Color: {color}", EventLogEntryType.Information, 222);
Logger(debug, "Start reader", EventLogEntryType.Information, 230);
var stlReader = new StLReader();
stlReader.DefaultMaterial = new DiffuseMaterial(
new SolidColorBrush((Color)ColorConverter.ConvertFromString(color)));
Logger(debug, "Reader configured", EventLogEntryType.Information, 240);
//stlReader.DefaultMaterial = new DiffuseMaterial(new SolidColorBrush(Colors.Blue));
Logger(debug, "Start reader the model", EventLogEntryType.Information, 250);
var model = stlReader.Read(SelectedItemStream);
Logger(debug, "Model ok", EventLogEntryType.Information, 260);
Logger(debug, "Create UI control", EventLogEntryType.Information, 300);
//...create UI controls...
Logger(debug, "Create Viewport", EventLogEntryType.Information, 310);
Viewport3D viewport = new Viewport3D();
Logger(debug, "Viewport done", EventLogEntryType.Information, 320);
Logger(debug, $"viewport.Measure: {width}", EventLogEntryType.Information, 330);
// viewport.Measure(new System.Windows.Size(320, 240));
viewport.Measure(new Size(width, width));
// viewport.Arrange(new Rect(0, 0, 320, 240));
Logger(debug, $"viewport.Arrange: {width}", EventLogEntryType.Information, 340);
viewport.Arrange(new Rect(0, 0, width, width));
Logger(debug, "ModelVisual3D", EventLogEntryType.Information, 350);
ModelVisual3D root = new ModelVisual3D();
Logger(debug, "viewport.Children.Add", EventLogEntryType.Information, 360);
viewport.Children.Add(root);
Logger(debug, "Camera", EventLogEntryType.Information, 400);
var camera = new PerspectiveCamera();
camera.Position = new Point3D(2, 16, 20);
camera.LookDirection = new Vector3D(-2, -16, -20);
camera.UpDirection = new Vector3D(0, 0, 1);
camera.FieldOfView = 45;
camera.NearPlaneDistance = 0.1;
camera.FarPlaneDistance = double.PositiveInfinity;
viewport.Camera = camera;
Logger(debug, "Camera Done", EventLogEntryType.Information, 410);
Logger(debug, "Add light", EventLogEntryType.Information, 420);
root.Children.Add(new DefaultLights());
Logger(debug, "Add model", EventLogEntryType.Information, 430);
root.Content = model;
Logger(debug, "Do camera.ZoomExtents", EventLogEntryType.Information, 440);
camera.ZoomExtents(viewport);
Logger(debug, "Do background", EventLogEntryType.Information, 450);
Brush background = new SolidColorBrush(Colors.Transparent);
Logger(debug, "Do a BitmapExporter", EventLogEntryType.Information, 460);
BitmapExporter exporter = new BitmapExporter
{
OversamplingMultiplier = 2,
Background = background
};
Logger(debug, "Fill the exporter", EventLogEntryType.Information, 470);
exporter.Export(viewport, memStream);
}
catch (Exception errorException)
{
Logger(debug, errorException.Message, EventLogEntryType.Error, errorException.HResult);
//TODO: Empty Catch
}
});
Logger(debug, "Thread STA", EventLogEntryType.Information, 500);
thread.SetApartmentState(ApartmentState.STA);
Logger(debug, "Thread Sstart", EventLogEntryType.Information, 510);
thread.Start();
Logger(debug, "Thread Join", EventLogEntryType.Information, 520);
thread.Join();
Logger(debug, "Create bitmap from memstream", EventLogEntryType.Information, 530);
Bitmap thumbnailBitmap = (Bitmap)Image.FromStream(memStream);
Logger(debug, "Return Bitmap!", EventLogEntryType.Information, 500);
return(thumbnailBitmap);
}
public void Read_Sphere_ValidModel()
{
var r = new StLReader();
var model = r.Read(@"Models\stl\sphere.stl");
Assert.AreEqual(1, model.Children.Count);
var m0 = (MeshGeometry3D)((GeometryModel3D)model.Children[0]).Geometry;
Assert.AreEqual(228, m0.TriangleIndices.Count / 3);
}
public static Model3DGroup Load(string path, Dispatcher dispatcher = null, bool freeze = false, bool ignoreErrors = false)
{
if (path == null)
{
return(null);
}
var defaultMaterial = Materials.Blue;
if (dispatcher == null)
{
dispatcher = Dispatcher.CurrentDispatcher;
}
Model3DGroup model;
var ext = Path.GetExtension(path).ToLower();
switch (ext)
{
case ".3ds":
{
var r = new StudioReader(dispatcher)
{
DefaultMaterial = defaultMaterial, Freeze = freeze
};
model = r.Read(path);
break;
}
case ".lwo":
{
var r = new LwoReader(dispatcher)
{
DefaultMaterial = defaultMaterial, Freeze = freeze
};
model = r.Read(path);
break;
}
case ".obj":
{
var r = new ObjReader(dispatcher)
{
DefaultMaterial = defaultMaterial, Freeze = freeze, IgnoreErrors = ignoreErrors
};
model = r.Read(path);
break;
}
case ".objx":
{
var r = new ObjReader(dispatcher)
{
DefaultMaterial = defaultMaterial, Freeze = freeze, IgnoreErrors = ignoreErrors
};
model = r.ReadZ(path);
break;
}
case ".stl":
{
var r = new StLReader(dispatcher)
{
DefaultMaterial = defaultMaterial, Freeze = freeze
};
model = r.Read(path);
break;
}
case ".off":
{
var r = new OffReader(dispatcher)
{
DefaultMaterial = defaultMaterial, Freeze = freeze
};
model = r.Read(path);
break;
}
default:
throw new InvalidOperationException("File format not supported.");
}
return(model);
}
protected Bitmap GetThumbnailImage(int width) // Implemented abstract function in the base class
{
bool everythingisOk = true;
MemoryStream memStream = new MemoryStream();
Thread thread = new Thread(() =>
{
//string tracefile = @"C:\temp\stlviewer.stl_log";
string tracefile = TargetFile.Replace(".stl", ".stl_log");
Logg("_______________________________________________________________________________");
FileInfo fileInfo = new FileInfo(TargetFile);
Logg($"Name: {fileInfo.Name}");
Logg($"Dir.: {fileInfo.Directory}");
Logg($"Size: {fileInfo.Length}");
Logg("1. Tread started");
object convertFromString = null;
Color color = new Color();
ModelVisual3D root = new ModelVisual3D();
Model3DGroup model = new Model3DGroup();
PerspectiveCamera camera = new PerspectiveCamera();
BitmapExporter exporter = new BitmapExporter();
if (everythingisOk)
{
try
{
string colorString = (string)Registry.GetValue(@"HKEY_CURRENT_USER\Software\Marlin3DprinterTool", "Color", "Blue");
convertFromString = ColorConverter.ConvertFromString(colorString);
Logg($"2. Color: {convertFromString}");
if (convertFromString != null)
{
color = (Color)convertFromString;
}
}
catch (Exception e)
{
Logg($"Something goes wrong in Color {e.Message}");
everythingisOk = false;
}
}
if (everythingisOk)
{
if (convertFromString != null)
{
Viewport3D viewport = new Viewport3D();
if (everythingisOk)
{
try
{
Logg($"3. STLreader");
StLReader stlReader = new StLReader();
stlReader.DefaultMaterial = new DiffuseMaterial(new SolidColorBrush(color));
Logg($"4. Read the Targetfile {TargetFile}");
model = stlReader.Read(TargetFile);
Logg($"5. Model read. New Viewport");
}
catch (Exception e)
{
Logg($"Something goes wrong in STLreader {e.Message}");
everythingisOk = false;
}
}
if (everythingisOk)
{
try
{
Logg($"6. Arrange with / height {width}/{width}");
viewport.Measure(new Size(width, width));
viewport.Arrange(new Rect(0, 0, width, width));
Logg($"7. Create root");
viewport.Children.Add(root);
Logg($"8. Create camera");
camera.Position = new Point3D(2, 16, 20);
camera.LookDirection = new Vector3D(-2, -16, -20);
camera.UpDirection = new Vector3D(0, 0, 1);
camera.FieldOfView = 45;
camera.NearPlaneDistance = 0.1;
camera.FarPlaneDistance = double.PositiveInfinity;
viewport.Camera = camera;
}
catch (Exception e)
{
Logg($"Something goes wrong in STLarrange {e.Message}");
everythingisOk = false;
}
}
if (everythingisOk)
{
try
{
Logg($"8.1. Create light");
root.Children.Add(new DefaultLights());
Logg($"8.2 Load model");
root.Content = model;
camera.ZoomExtents(viewport);
Logg($"9. Create Background");
Brush background = new SolidColorBrush(Colors.Transparent);
Logg($"10. Create Exporter");
exporter.Background = background;
exporter.OversamplingMultiplier = 1;
}
catch (Exception e)
{
Logg($"Something goes wrong in Background/Light {e.Message}");
everythingisOk = false;
}
}
if (everythingisOk)
{
try
{
Logg($"11. Export to memorystream");
exporter.Export(viewport, memStream);
//Logg($"11. Export to {tempBitmap}");
//FileStream fs = new FileStream(tempBitmap, FileMode.Create, FileAccess.ReadWrite);
//exporter.Export(viewport, fs);
//fs.Flush();
//fs.Close();
}
catch (Exception e)
{
Logg($"Something goes wrong in Export to memory Stream {e.Message}");
everythingisOk = false;
}
}
}
}
});
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
thread.Join();
if (everythingisOk)
{
try
{
Logg($"12. Create Bitmap from memorystream");
Bitmap thumbnailBitmap = (Bitmap)Image.FromStream(memStream);
return(thumbnailBitmap);
}
catch (Exception e)
{
Logg($"Something goes wrong in Bitmap from messageStream {e.Message}");
Logg("_______________________________________________________________________________");
return(null);
}
}
Logg("_______________________________________________________________________________");
return(null);
}
/// <summary>
/// Loads the Stl model into a Viewport3D and renders a bitmap of it.
/// </summary>
/// <param name="stream">The Stream instance for the Stl content.</param>
/// <param name="cx">The maximum thumbnail size, in pixels.</param>
/// <returns>A thumbnail rendered from the Stl model.</returns>
public static Bitmap GetThumbnail(Stream stream, uint cx)
{
if (cx > MaxThumbnailSize || stream == null || stream.Length == 0)
{
return(null);
}
Bitmap thumbnail = null;
var stlReader = new StLReader
{
DefaultMaterial = new DiffuseMaterial(new SolidColorBrush(Color.FromRgb(255, 201, 36))),
};
var model = stlReader.Read(stream);
if (model.Bounds == Rect3D.Empty)
{
return(null);
}
var viewport = new System.Windows.Controls.Viewport3D();
viewport.Measure(new Size(cx, cx));
viewport.Arrange(new Rect(0, 0, cx, cx));
var modelVisual = new ModelVisual3D()
{
Transform = new RotateTransform3D(new AxisAngleRotation3D(new Vector3D(0, 0, 1), 180)),
};
viewport.Children.Add(modelVisual);
viewport.Children.Add(new DefaultLights());
var perspectiveCamera = new PerspectiveCamera
{
Position = new Point3D(1, 2, 1),
LookDirection = new Vector3D(-1, -2, -1),
UpDirection = new Vector3D(0, 0, 1),
FieldOfView = 20,
NearPlaneDistance = 0.1,
FarPlaneDistance = double.PositiveInfinity,
};
viewport.Camera = perspectiveCamera;
modelVisual.Content = model;
perspectiveCamera.ZoomExtents(viewport);
var bitmapExporter = new BitmapExporter
{
Background = new SolidColorBrush(Colors.Transparent),
OversamplingMultiplier = 1,
};
var bitmapStream = new MemoryStream();
bitmapExporter.Export(viewport, bitmapStream);
bitmapStream.Position = 0;
thumbnail = new Bitmap(bitmapStream);
return(thumbnail);
}
public int LoadModel(String FilePath)
{
MeshGeometryModel3D m_model = new MeshGeometryModel3D();
//ModelGeometry已經有幾何模型存在內部 及 阻擋檔案不存在的情況
if (/*IsLoaded ||*/ !File.Exists(FilePath)) ///What the F**k is IsLoaded ??????
{
return(1);
}
//利用helixtoolkit.wpf裡面提供的StlReader讀檔案，後續要轉成wpf.sharpdx可用的格式
StLReader reader = new StLReader();
Model3DGroup ModelContainer = reader.Read(FilePath);
Rect3D bound = ModelContainer.Bounds;
var ModelCenter = new Vector3(Convert.ToSingle(bound.X + bound.SizeX / 2.0),
Convert.ToSingle(bound.Y + bound.SizeY / 2.0),
Convert.ToSingle(bound.Z + bound.SizeZ / 2.0));
HelixToolkit.Wpf.SharpDX.MeshGeometry3D modelGeometry = new HelixToolkit.Wpf.SharpDX.MeshGeometry3D
{
Normals = new Vector3Collection(),
Positions = new Vector3Collection(),
Indices = new IntCollection()
};
foreach (System.Windows.Media.Media3D.Model3D model in ModelContainer.Children)
{
var geometryModel = model as System.Windows.Media.Media3D.GeometryModel3D;
System.Windows.Media.Media3D.MeshGeometry3D mesh = geometryModel?.Geometry as System.Windows.Media.Media3D.MeshGeometry3D;
if (mesh == null)
{
continue;
}
//將從stlreader讀到的資料轉入
foreach (Point3D position in mesh.Positions)
{
modelGeometry.Positions.Add(new Vector3(
Convert.ToSingle(position.X)
, Convert.ToSingle(position.Y)
, Convert.ToSingle(position.Z)));
}
int i = 0;
foreach (Vector3D normal in mesh.Normals)
{
//Vector3D v1 = new Vector3D((modelGeometry.Positions[i + 1].X - modelGeometry.Positions[i].X), (modelGeometry.Positions[i + 1].Y - modelGeometry.Positions[i].Y), (modelGeometry.Positions[i + 1].Z - modelGeometry.Positions[i].Z));
//Vector3D v2 = new Vector3D((modelGeometry.Positions[i + 2].X - modelGeometry.Positions[i].X), (modelGeometry.Positions[i + 2].Y - modelGeometry.Positions[i].Y), (modelGeometry.Positions[i + 2].Z - modelGeometry.Positions[i].Z));
//Vector3D n = Vector3D.CrossProduct(v1, v2);
//modelGeometry.Normals.Add(new Vector3(
// Convert.ToSingle(n.X)
// , Convert.ToSingle(n.Y)
// , Convert.ToSingle(n.Z)));
modelGeometry.Normals.Add(new Vector3(
Convert.ToSingle(normal.X)
, Convert.ToSingle(normal.Y)
, Convert.ToSingle(normal.Z)));
}
foreach (Int32 triangleindice in mesh.TriangleIndices)
{
modelGeometry.Indices.Add(triangleindice);
}
// MessageBox.Show(mesh.Normals.Count.ToString());
}
SetModelMaterial(m_model);
m_model.Geometry = modelGeometry;
ModelGroup.Children.Add(m_model);
m_group.Add(m_model);
ResetCameraPosition(bound);
return(0);
}
/// <summary>
/// Read FileData
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
public ContainerUIElement3D ReadFileData(string path)
{
var extension = Path.GetExtension(path);
// var visModel = new ModelVisual3D();
var container = new ContainerUIElement3D();
switch (extension)
{
case ".obj":
var currentHelixObjReader = new ObjReader();
try
{
var myModel = currentHelixObjReader.Read(path);
foreach (var model in myModel.Children)
{
if (model is GeometryModel3D)
{
var geom = model as GeometryModel3D;
var element = new ModelUIElement3D {
Model = geom
};
element.MouseDown += (sender1, e1) => OnElementMouseDown(sender1, e1, this);
container.Children.Add(element);
}
}
}
catch (Exception)
{
// ignore
}
break;
case ".stl":
var currentHelixStlReader = new StLReader();
try
{
var myModel = currentHelixStlReader.Read(path);
foreach (var model in myModel.Children)
{
if (model is GeometryModel3D)
{
var geom = model as GeometryModel3D;
var element = new ModelUIElement3D {
Model = geom
};
element.MouseDown += (sender1, e1) => OnElementMouseDown(sender1, e1, this);
container.Children.Add(element);
}
}
}
catch (Exception)
{
// ignore
}
break;
}
return(container);
}
protected override Bitmap GetThumbnailImage(uint width) // Implemented abstract function in the base class
{
MemoryStream memStream = new MemoryStream();
Thread thread = new Thread(() =>
{
try
{
string color = (string)Registry.GetValue(@"HKEY_CURRENT_USER\Software\Marlin3DprinterTool", "Color", "Blue");
var stlReader = new StLReader();
stlReader.DefaultMaterial = new DiffuseMaterial(
new SolidColorBrush((Color)ColorConverter.ConvertFromString(color)));
//stlReader.DefaultMaterial = new DiffuseMaterial(new SolidColorBrush(Colors.Blue));
var model = stlReader.Read(SelectedItemStream);
//...create UI controls...
Viewport3D viewport = new Viewport3D();
// viewport.Measure(new System.Windows.Size(320, 240));
viewport.Measure(new Size(width, width));
// viewport.Arrange(new Rect(0, 0, 320, 240));
viewport.Arrange(new Rect(0, 0, width, width));
ModelVisual3D root = new ModelVisual3D();
viewport.Children.Add(root);
var camera = new PerspectiveCamera();
camera.Position = new Point3D(2, 16, 20);
camera.LookDirection = new Vector3D(-2, -16, -20);
camera.UpDirection = new Vector3D(0, 0, 1);
camera.FieldOfView = 45;
camera.NearPlaneDistance = 0.1;
camera.FarPlaneDistance = double.PositiveInfinity;
viewport.Camera = camera;
root.Children.Add(new DefaultLights());
root.Content = model;
camera.ZoomExtents(viewport);
Brush background = new SolidColorBrush(Colors.Transparent);
BitmapExporter exporter = new BitmapExporter
{
OversamplingMultiplier = 2,
Background = background
};
exporter.Export(viewport, memStream);
}
catch (Exception treadException)
{
}
});
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
thread.Join();
Bitmap thumbnailBitmap = (Bitmap)Image.FromStream(memStream);
return(thumbnailBitmap);
}
/// <summary>
/// load進模型檔案
/// </summary>
public void LoadModel()
{
//ModelGeometry已經有幾何模型存在內部 及 阻擋檔案不存在的情況
if (IsLoaded || !File.Exists(FilePath))
{
return;
}
//利用helixtoolkit.wpf裡面提供的StlReader讀檔案，後續要轉成wpf.sharpdx可用的格式
StLReader reader = new StLReader();
ModelContainer = reader.Read(FilePath);
Rect3D bound = ModelContainer.Bounds;
ModelCenter = new Vector3(Convert.ToSingle(bound.X + bound.SizeX / 2.0),
Convert.ToSingle(bound.Y + bound.SizeY / 2.0),
Convert.ToSingle(bound.Z + bound.SizeZ / 2.0));
HelixToolkit.Wpf.SharpDX.MeshGeometry3D modelGeometry = new HelixToolkit.Wpf.SharpDX.MeshGeometry3D
{
Normals = new Vector3Collection(),
Positions = new Vector3Collection(),
Indices = new IntCollection()
};
foreach (Model3D model in ModelContainer.Children)
{
var geometryModel = model as GeometryModel3D;
MeshGeometry3D mesh = geometryModel?.Geometry as MeshGeometry3D;
if (mesh == null)
{
continue;
}
//將從stlreader讀到的資料轉入
foreach (Point3D position in mesh.Positions)
{
modelGeometry.Positions.Add(new Vector3(
Convert.ToSingle(position.X)
, Convert.ToSingle(position.Y)
, Convert.ToSingle(position.Z)));
}
foreach (Vector3D normal in mesh.Normals)
{
modelGeometry.Normals.Add(new Vector3(
Convert.ToSingle(normal.X)
, Convert.ToSingle(normal.Y)
, Convert.ToSingle(normal.Z)));
}
foreach (Int32 triangleindice in mesh.TriangleIndices)
{
modelGeometry.Indices.Add(triangleindice);
}
}
SetBoneMaterial();
Geometry = modelGeometry;
IsLoaded = true;
}