/// <summary>
/// Adds the specified model to the rear of the 3D scene.
/// </summary>
/// <param name="model">The rear item in the scene.</param>
internal void AddToBack(Viewport2DVisual3D model)
{
if (AllowTransparency)
Children.Insert(1, model);
else
Children.Add(model);
}
internal GeneralTransform2DTo3D(GeneralTransform transform2D,
Viewport2DVisual3D containingVisual3D,
GeneralTransform3D transform3D)
{
Visual child = containingVisual3D.Visual;
Debug.Assert(child != null, "Going from 2D to 3D containingVisual3D.Visual should not be null");
_transform3D = (GeneralTransform3D)transform3D.GetCurrentValueAsFrozen();
// we also need to go one more level up to handle a transform being placed
// on the Viewport2DVisual3D's child
GeneralTransformGroup transformGroup = new GeneralTransformGroup();
transformGroup.Children.Add((GeneralTransform)transform2D.GetCurrentValueAsFrozen());
transformGroup.Children.Add((GeneralTransform)child.TransformToOuterSpace().GetCurrentValueAsFrozen());
transformGroup.Freeze();
_transform2D = transformGroup;
_positions = containingVisual3D.InternalPositionsCache;
_textureCoords = containingVisual3D.InternalTextureCoordinatesCache;
_triIndices = containingVisual3D.InternalTriangleIndicesCache;
_childBounds = child.CalculateSubgraphRenderBoundsOuterSpace();
}
/// <summary>
/// Transform a point
/// </summary>
/// <param name="inPoint">Input point</param>
/// <param name="result">Output point</param>
/// <returns>True if the point was transformed successfuly, false otherwise</returns>
public bool TryTransform(Point inPoint, out Point3D result)
{
Point final2DPoint;
// assign this now so that we can return false if needed
result = new Point3D();
if (!_transform2D.TryTransform(inPoint, out final2DPoint))
{
return(false);
}
Point texCoord = Viewport2DVisual3D.VisualCoordsToTextureCoords(final2DPoint, _childBounds);
// need to walk the texture coordinates on the Viewport2DVisual3D
// and look for where this point intersects one of them
Point3D coordPoint;
if (!Viewport2DVisual3D.Get3DPointFor2DCoordinate(texCoord,
out coordPoint,
_positions,
_textureCoords,
_triIndices))
{
return(false);
}
if (!_transform3D.TryTransform(coordPoint, out result))
{
return(false);
}
return(true);
}
/// <summary>
/// Adds the specified model to the front of the 3D scene.
/// </summary>
/// <param name="model">The front item in the scene.</param>
internal void AddToFront(Viewport2DVisual3D model)
{
if (this.AllowTransparency)
base.Children.Add(model);
else
base.Children.Insert(1, model);
}
internal static void OnGeometryChanged(Object sender, DependencyPropertyChangedEventArgs e)
{
Viewport2DVisual3D viewport2DVisual3D = ((Viewport2DVisual3D)sender);
viewport2DVisual3D.InvalidateAllCachedValues();
if (!e.IsASubPropertyChange)
{
((GeometryModel3D)viewport2DVisual3D.Visual3DModel).Geometry = viewport2DVisual3D.Geometry;
}
}
void System.Windows.Markup.IComponentConnector.Connect(int connectionId, object target)
{
switch (connectionId)
{
case 1:
this.PerspectiveCamera = ((System.Windows.Media.Media3D.PerspectiveCamera)(target));
return;
case 2:
this.containerUIElement3D = ((System.Windows.Media.Media3D.ContainerUIElement3D)(target));
return;
case 3:
this.FrontViewport2DVisual3D = ((System.Windows.Media.Media3D.Viewport2DVisual3D)(target));
return;
case 4:
this.newS = ((System.Windows.Controls.Button)(target));
#line 169 "..\..\..\Transform\Viewport3DTransform.xaml"
this.newS.Click += new System.Windows.RoutedEventHandler(this.newS_Click);
#line default
#line hidden
return;
case 5:
this.BackViewport2DVisual3D = ((System.Windows.Media.Media3D.Viewport2DVisual3D)(target));
return;
case 6:
this.setS = ((System.Windows.Controls.Button)(target));
#line 215 "..\..\..\Transform\Viewport3DTransform.xaml"
this.setS.Click += new System.Windows.RoutedEventHandler(this.setS_Click);
#line default
#line hidden
return;
case 7:
this.ViewLight = ((System.Windows.Media.Media3D.AmbientLight)(target));
return;
case 8:
this.DisplayGrid = ((System.Windows.Controls.Grid)(target));
return;
case 9:
this.DisPlayControl = ((System.Windows.Controls.UserControl)(target));
return;
}
this._contentLoaded = true;
}
private void AddUIP3DPlane()
{
var rectangle = SimpleGeometry3D.CreateRectangle(2, 3);
var viewport2D = new Viewport2DVisual3D();
viewport2D.Geometry = rectangle;
viewport2D.Visual = _soundVisualizer;
var material = new DiffuseMaterial { Brush = Brushes.Black };
Viewport2DVisual3D.SetIsVisualHostMaterial(material, true);
viewport2D.Material = material;
viewport2D.Transform = new TranslateTransform3D(0, -0.5, 0);
_scene.Add2DUI(viewport2D);
}
internal HitTestResultBehavior RaiseCallback(HitTestResultCallback resultCallback,
HitTestFilterCallback filterCallback,
HitTestResultBehavior lastResult,
double distanceAdjustment)
{
results.Sort(RayHitTestResult.CompareByDistanceToRayOrigin);
for (int i = 0, count = results.Count; i < count; i++)
{
RayHitTestResult result = results[i];
result.SetDistanceToRayOrigin(result.DistanceToRayOrigin + distanceAdjustment);
Viewport2DVisual3D viewport2DVisual3D = result.VisualHit as Viewport2DVisual3D;
if (viewport2DVisual3D != null)
{
Point intersectionPoint;
Visual viewport2DVisual3DChild = viewport2DVisual3D.Visual;
if (viewport2DVisual3DChild != null)
{
if (Viewport2DVisual3D.GetIntersectionInfo(result, out intersectionPoint))
{
// convert the resulting point to visual coordinates
Point visualPoint = Viewport2DVisual3D.TextureCoordsToVisualCoords(intersectionPoint, viewport2DVisual3DChild);
GeneralTransform gt = viewport2DVisual3DChild.TransformToOuterSpace().Inverse;
Point pointOnChild;
if (gt != null && gt.TryTransform(visualPoint, out pointOnChild))
{
HitTestResultBehavior behavior2D = viewport2DVisual3DChild.HitTestPoint(filterCallback,
resultCallback,
new PointHitTestParameters(pointOnChild));
if (behavior2D == HitTestResultBehavior.Stop)
{
return(HitTestResultBehavior.Stop);
}
}
}
}
}
HitTestResultBehavior behavior = resultCallback(results[i]);
if (behavior == HitTestResultBehavior.Stop)
{
return(HitTestResultBehavior.Stop);
}
}
return(lastResult);
}
public void CreateVisual3D(Model model)
{
UI ui = new UI(UITemplate);
Viewport2DVisual3D visual = new Viewport2DVisual3D();
visual.Geometry = Geometry;
visual.Visual = ui.Visual;
EmissiveMaterial material = new EmissiveMaterial(Brushes.White);
Viewport2DVisual3D.SetIsVisualHostMaterial(material, true);
visual.Material = material;
model.Children.Add(visual);
}
internal static void OnVisualChanged(Object sender, DependencyPropertyChangedEventArgs e)
{
Viewport2DVisual3D viewport2DVisual3D = ((Viewport2DVisual3D)sender);
// remove the old parent, add on a new one
Visual oldValue = (Visual)e.OldValue;
Visual newValue = (Visual)e.NewValue;
if (oldValue != newValue)
{
//
// The following code deals with properly setting up the new child to have its inheritance context
// only point towards this Viewport2DVisual3D.
//
// When we add the new visual as a child, if that visual is an FE (which most will be) we expect it to
// clear the inheritance context (IC) since it has a visual parent. In the case of a non-FE they don't
// deal with ICs anyway, so they should have a null IC. The Assert that follows then guards against
// the child not having a null inheritance context.
//
// We then set the target Visual on the internal brush to be this new visual. Since when we created
// the brush we set it to not be an inheritance context, the InheritanceContext should still be null.
//
// We become the IC after returning from this function, since the function that calls this change handler
// will set us as the IC.
//
if (viewport2DVisual3D.CacheMode as BitmapCache != null)
{
viewport2DVisual3D.InternalBitmapCacheBrush.Target = newValue;
Debug.Assert((newValue == null || newValue.InheritanceContext == null),
"Expected BitmapCacheBrush to remove the InheritanceContext on newValue");
}
else
{
// Add ourselves as the parent of the object
viewport2DVisual3D.RemoveVisualChild(oldValue);
viewport2DVisual3D.AddVisualChild(newValue);
Debug.Assert((newValue == null || newValue.InheritanceContext == null),
"Expected AddVisualChild to remove the InheritanceContext on newValue");
// Change the brush's target
viewport2DVisual3D.InternalVisualBrush.Visual = newValue;
// setting the visual brush to use this new child should not invalidate our previous condition
Debug.Assert((newValue == null || newValue.InheritanceContext == null),
"Expected the InternalVisualBrush not to set the InheritanceContext");
}
}
}
private CubeNavigator()
{
cubeNavViewport = mainWindow.CubeNavViewport;
//cubeNavModel = mainWindow.CubeNavModel;
cubeFront = mainWindow.CubeFront;
cubeBack = mainWindow.CubeBack;
cubeLeft = mainWindow.CubeLeft;
cubeRight = mainWindow.CubeRight;
cubeUp = mainWindow.CubeUp;
cubeDown = mainWindow.CubeDown;
cubeNavViewport.PreviewMouseDown += cubeNavViewport_ButtonDown;
mainWindow.PreviewMouseMove += cubeNavViewport_MouseMove;
mainWindow.PreviewMouseUp += cubeNavViewport_ButtonUp;
}
public Cube3D()
{
Canvas.SetLeft(this,0);
Canvas.SetTop(this,0);
this.Width=733;
this.Height = 400;
this.ClipToBounds = true;
//add camera
PerspectiveCamera myPCamera = new PerspectiveCamera();
myPCamera.Position = new Point3D(0, 30, 90);
myPCamera.LookDirection = new Vector3D(0, -20, -90);
myPCamera.FieldOfView = 80;
this.Camera = myPCamera;
//add light
ModelVisual3D mv3dLight = new ModelVisual3D();
DirectionalLight myDirLight = new DirectionalLight();
myDirLight.Color = Colors.White;
myDirLight.Direction = new Vector3D(-2, -3, -1);
mv3dLight.Content = myDirLight;
this.Children.Add(mv3dLight);
//add material and mesh geometry
Viewport2DVisual3D vpMaterial = new Viewport2DVisual3D();
DiffuseMaterial dm = new DiffuseMaterial();
dm.Brush = Brushes.Transparent;
vpMaterial.Material = dm;
MeshGeometry3D vpg = new MeshGeometry3D();
vpg.Positions.Add(new Point3D(-55,0,-30));
vpg.Positions.Add(new Point3D(-55,0,30));
vpg.Positions.Add(new Point3D(55,0,30));
vpg.Positions.Add(new Point3D(55,0,-30));
vpg.TextureCoordinates.Add(new Point(0,0));
vpg.TextureCoordinates.Add(new Point(0,1));
vpg.TextureCoordinates.Add(new Point(1,1));
vpg.TextureCoordinates.Add(new Point(1,0));
vpg.TriangleIndices.Add(0);
vpg.TriangleIndices.Add(1);
vpg.TriangleIndices.Add(2);
vpg.TriangleIndices.Add(2);
vpg.TriangleIndices.Add(3);
vpg.TriangleIndices.Add(0);
vpMaterial.Geometry = vpg;
this.Children.Add(vpMaterial);
this.Loaded += new RoutedEventHandler(OnLoad);
}
internal GeneralTransform2DTo3D(GeneralTransform transform2D,
Viewport2DVisual3D containingVisual3D,
GeneralTransform3D transform3D)
{
Visual child = containingVisual3D.Visual;
Debug.Assert(child != null, "Going from 2D to 3D containingVisual3D.Visual should not be null");
_transform3D = (GeneralTransform3D)transform3D.GetCurrentValueAsFrozen();
// we also need to go one more level up to handle a transform being placed
// on the Viewport2DVisual3D's child
GeneralTransformGroup transformGroup = new GeneralTransformGroup();
transformGroup.Children.Add((GeneralTransform)transform2D.GetCurrentValueAsFrozen());
transformGroup.Children.Add((GeneralTransform)child.TransformToOuterSpace().GetCurrentValueAsFrozen());
transformGroup.Freeze();
_transform2D = transformGroup;
_positions = containingVisual3D.InternalPositionsCache;
_textureCoords = containingVisual3D.InternalTextureCoordinatesCache;
_triIndices = containingVisual3D.InternalTriangleIndicesCache;
_childBounds = child.CalculateSubgraphRenderBoundsOuterSpace();
}
/// <summary>
/// When overridden in a derived class, is invoked whenever application code or internal processes call <see cref="M:System.Windows.FrameworkElement.ApplyTemplate"/>.
/// </summary>
public override void OnApplyTemplate()
{
_viewport = GetTemplateChild("PART_Viewport") as Viewport3D;
_camera = GetTemplateChild("PART_Camera") as PerspectiveCamera;
_frontContent = GetTemplateChild("PART_FrontContent") as Border;
_frontModel = GetTemplateChild("PART_FrontModel") as Viewport2DVisual3D;
_backContent = GetTemplateChild("PART_BackContent") as Border;
_backModel = GetTemplateChild("PART_BackModel") as Viewport2DVisual3D;
_scale = GetTemplateChild("PART_Scale") as ScaleTransform3D;
_rotate = GetTemplateChild("PART_Rotate") as RotateTransform3D;
_quaternion = GetTemplateChild("PART_Quaternion") as QuaternionRotation3D;
_fixedContainer = GetTemplateChild("PART_FixedContainer") as Border;
_fixedHiddenContainer = GetTemplateChild("PART_FixedHiddenContainer") as Border;
_fixedTransform = GetTemplateChild("PART_FixedTransform") as RotateTransform;
_directionalLights = GetTemplateChild("PART_DirectionalLights") as ModelVisual3D;
_ambientLights = GetTemplateChild("PART_AmbientLights") as ModelVisual3D;
SizeChanged += (sender, e) => UpdateBounds();
_frontContent.SizeChanged += (sender, e) => UpdateBounds();
_backContent.SizeChanged += (sender, e) => UpdateBounds();
UpdateBounds();
UpdateRotation();
UpdateLights();
UpdateCacheInvalidationThresholdMaximum();
UpdateCacheInvalidationThresholdMinimum();
base.OnApplyTemplate();
}
/// <summary>
/// Returns the index of the specified model where 0 is the front item.
/// If the model is not in the scene, returns -1.
/// </summary>
internal int GetVisualIndex(Viewport2DVisual3D model)
{
int modelIndex = Children.IndexOf(model);
if (modelIndex < 0)
return -1;
if (AllowTransparency)
return ModelCount - modelIndex;
return modelIndex - 1;
}
public void Add2DUI(Viewport2DVisual3D viewport2D)
{
Viewport.Children.Add(viewport2D);
}
private void BuildFront()
{
//构造图形
var geometry = new MeshGeometry3D();
double x = CubeLength / 2;
double y = CubeHeight / 2;
double z = CubeWidth / 2;
geometry.Positions = new Point3DCollection((new Point3D[]
{
new Point3D(-x, -y,z), //左下角
new Point3D(x,-y,z), //右下角
new Point3D(x,y,z), //右上角
new Point3D(-x,y,z) //左上角
}));
//三角形构造,影响呈现的正反面
geometry.TriangleIndices = new Int32Collection(new int[] { 0, 1, 2, 2, 3, 0 });
//纹理
geometry.TextureCoordinates = new PointCollection(new Point[] { new Point(0, 1), new Point(1, 1), new Point(1, 0), new Point() });
//如果已经有了，只更新图形
if (frontViewPort != null)
{
frontViewPort.Geometry = geometry;
return;
}
//正面
frontViewPort = new Viewport2DVisual3D();
frontViewPort.Geometry = geometry;
if (FrontContent != null)
{
frontViewPort.Visual = FrontContent;
}
else
{
var grid = new Grid();
grid.Children.Add(new TextBlock() { Text = "正面", Background = Brushes.BlueViolet });
frontViewPort.Visual = grid;
}
frontViewPort.Material = material;
Children.Add(frontViewPort);
}
/// <summary>
/// Returns the index of the specified model where 0 is the front item.
/// If the model is not in the scene, returns -1.
/// </summary>
internal int GetVisualIndex(Viewport2DVisual3D model)
{
int modelIndex = base.Children.IndexOf(model);
if (modelIndex < 0)
return -1;
if (this.AllowTransparency)
return this.ModelCount - modelIndex;
else
return modelIndex - 1;
}
private Visual3D EnsureChild(Visual3D currentChild, Shape3DMaterial material)
{
Visual3D newChild = null;
if (material != null)
{
if (material.HasElement)
{
// We need a Viewport2DVisual3D to display an element.
if(currentChild is Viewport2DVisual3D)
{
newChild = currentChild;
}
else
{
//Viewbox viewbox = new Viewbox();
//viewbox.StretchDirection = StretchDirection.Both;
//viewbox.Stretch = Stretch.Fill;
Border border = new Border();
border.UseLayoutRounding = true;
border.Background = Brushes.Green;
//border.Child = viewbox;
Viewport2DVisual3D viewport = new Viewport2DVisual3D();
viewport.Visual = border;
newChild = viewport;
}
// Set the appropriate caching strategy.
CacheScale cacheScale = CacheScale;
if (cacheScale == null)
{
// Remove any VisualBrush caching.
RenderOptions.SetCachingHint(newChild, CachingHint.Unspecified);
// Remove any BitmapCache.
((Viewport2DVisual3D)newChild).CacheMode = null;
}
else if (cacheScale.IsAuto)
{
// Remove any BitmapCache.
((Viewport2DVisual3D)newChild).CacheMode = null;
// Specify VisualBrush caching with 2x min and max
// thresholds.
RenderOptions.SetCachingHint(newChild, CachingHint.Cache);
RenderOptions.SetCacheInvalidationThresholdMinimum(newChild, 0.5);
RenderOptions.SetCacheInvalidationThresholdMaximum(newChild, 2.0);
}
else
{
// Remove any VisualBrush caching.
RenderOptions.SetCachingHint(newChild, CachingHint.Unspecified);
// Set a BitmapCache with the appropriate scale.
BitmapCache bitmapCache = ((Viewport2DVisual3D)newChild).CacheMode as BitmapCache;
if (bitmapCache == null)
{
((Viewport2DVisual3D)newChild).CacheMode = new BitmapCache(cacheScale.Scale);
}
else
{
bitmapCache.RenderAtScale = cacheScale.Scale;
}
}
}
else
{
Debug.Assert(material.HasMaterial);
// We need a ModelVisual3D to display the material.
if(currentChild is ModelVisual3D)
{
Debug.Assert(((ModelVisual3D)currentChild).Content is GeometryModel3D);
newChild = currentChild;
}
else
{
newChild = new ModelVisual3D();
((ModelVisual3D)newChild).Content = new GeometryModel3D();
}
}
}
return newChild;
}
private static void OnCachingHintChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
Viewport2DVisual3D viewport2D = (Viewport2DVisual3D)d;
RenderOptions.SetCachingHint(viewport2D._visualBrush, (CachingHint)e.NewValue);
}
private FrameworkElement CreateVisualChild()
{
MeshGeometry3D simpleQuad = new MeshGeometry3D()
{
Positions = new Point3DCollection(_mesh),
TextureCoordinates = new PointCollection(_texCoords),
TriangleIndices = new Int32Collection(_indices)
};
// Front material is interactive, back material is not.
Material frontMaterial = new DiffuseMaterial(Brushes.White);
frontMaterial.SetValue(Viewport2DVisual3D.IsVisualHostMaterialProperty, true);
VisualBrush vb = new VisualBrush(_logicalChild);
SetCachingForObject(vb); // big perf wins by caching!!
Material backMaterial = new DiffuseMaterial(vb);
_rotationTransform.Rotation = _quaternionRotation;
var xfGroup = new Transform3DGroup() { Children = { _scaleTransform, _rotationTransform } };
GeometryModel3D backModel = new GeometryModel3D() { Geometry = simpleQuad, Transform = xfGroup, BackMaterial = backMaterial };
Model3DGroup m3dGroup = new Model3DGroup()
{
Children = { new DirectionalLight(Colors.White, new Vector3D(0, 0, -1)),
new DirectionalLight(Colors.White, new Vector3D(0.1, -0.1, 1)),
backModel }
};
// Non-interactive Visual3D consisting of the backside, and two lights.
ModelVisual3D mv3d = new ModelVisual3D() { Content = m3dGroup };
// Interactive frontside Visual3D
Viewport2DVisual3D frontModel = new Viewport2DVisual3D() { Geometry = simpleQuad, Visual = _logicalChild, Material = frontMaterial, Transform = xfGroup };
// Cache the brush in the VP2V3 by setting caching on it. Big perf wins.
SetCachingForObject(frontModel);
// Scene consists of both the above Visual3D's.
_viewport3d = new Viewport3D() { ClipToBounds = false, Children = { mv3d, frontModel } };
UpdateRotation();
return _viewport3d;
}
private void SetupModel()
{
Visual front = null;
Visual back = null;
if (frontVisual3D != null)
{
front = frontVisual3D.Visual;
frontVisual3D.Visual = null;
}
if (backVisual3D != null)
{
back = backVisual3D.Visual;
backVisual3D.Visual = null;
}
frontVisual3D = new Viewport2DVisual3D
{
Geometry = mesh,
Material = visualHostMaterial,
};
backVisual3D = new Viewport2DVisual3D
{
Geometry = mesh,
Material = visualHostMaterial,
Transform = new RotateTransform3D(new AxisAngleRotation3D(SpinAxis == Orientation.Vertical ? AxisY : AxisX, 180))
};
rotation.Axis = SpinAxis == Orientation.Vertical ? AxisY : AxisX;
if (front != null)
frontVisual3D.Visual = front;
if (back != null)
backVisual3D.Visual = back;
model.Children.Clear();
model.Children.Add(frontVisual3D);
model.Children.Add(backVisual3D);
InvalidateMeasure();
}
void System.Windows.Markup.IComponentConnector.Connect(int connectionId, object target) {
switch (connectionId)
{
case 1:
this.Side1 = ((System.Windows.Media.Media3D.Viewport2DVisual3D)(target));
return;
case 2:
this.rot = ((System.Windows.Media.Media3D.AxisAngleRotation3D)(target));
return;
case 3:
this.Side2 = ((System.Windows.Media.Media3D.Viewport2DVisual3D)(target));
return;
case 4:
this.rot2 = ((System.Windows.Media.Media3D.AxisAngleRotation3D)(target));
return;
}
this._contentLoaded = true;
}
/// <summary>
/// Adjusts a 3D model's location and opacity.
/// </summary>
void ConfigureModel(Viewport2DVisual3D model, int index)
{
// We begin "null animations" to unapply any active animations.
var trans = model.Transform as TranslateTransform3D;
trans.BeginAnimation(TranslateTransform3D.OffsetXProperty, null);
trans.BeginAnimation(TranslateTransform3D.OffsetYProperty, null);
trans.BeginAnimation(TranslateTransform3D.OffsetZProperty, null);
var offsets = this.GetModelOffsets(index);
trans.OffsetX = offsets.X;
trans.OffsetY = offsets.Y;
trans.OffsetZ = offsets.Z;
var elem = model.Visual as UIElement;
elem.BeginAnimation(UIElement.OpacityProperty, null);
elem.Opacity = this.AutoAdjustOpacity ? this.GetElementOpacity(index) : 1.0;
}
/// <summary>
/// Tears down the current 3D scene and constructs a new one
/// where the specified model is the front object in view.
/// </summary>
void BuildScene(Viewport2DVisual3D frontModel)
{
_viewport.RemoveAllModels();
// Add in some 3D models, starting with the one in front.
var current = frontModel;
for (int i = 0; _viewport.ModelCount < this.MaxVisibleModels; ++i)
{
this.ConfigureModel(current, i);
_viewport.AddToBack(current);
current = this.GetNextModel(current);
if (_viewport.Children.Contains(current))
break;
}
}
/// <summary>
/// Construct a new display object.
/// </summary>
/// <param name="Key">The key it is stored at.</param>
/// <param name="pRenderer">The renderer which created it.</param>
internal Display(object Key, Renderer pRenderer)
{
// Store the renderer.
this.Renderer = pRenderer;
this.Key = Key;
// Identities.
HomographyTransform = new MatrixTransform3D();
// Create the model visual.
Viewport2DVisual3D = new Viewport2DVisual3D();
// Geom (create a texturemapped rectangle).
var pMeshGeometry3D = new MeshGeometry3D();
pMeshGeometry3D.Positions.Add(new Point3D(0, 0, 0));
pMeshGeometry3D.Positions.Add(new Point3D(0, 1, 0));
pMeshGeometry3D.Positions.Add(new Point3D(1, 0, 0));
pMeshGeometry3D.Positions.Add(new Point3D(1, 1, 0));
pMeshGeometry3D.TextureCoordinates.Add(new Point(0, 0));
pMeshGeometry3D.TextureCoordinates.Add(new Point(1, 0));
pMeshGeometry3D.TextureCoordinates.Add(new Point(0, 1));
pMeshGeometry3D.TextureCoordinates.Add(new Point(1, 1));
//pMeshGeometry3D.TextureCoordinates.Add(new Point(0, 1));
//pMeshGeometry3D.TextureCoordinates.Add(new Point(0, 0));
//pMeshGeometry3D.TextureCoordinates.Add(new Point(1, 1));
//pMeshGeometry3D.TextureCoordinates.Add(new Point(1, 0));
pMeshGeometry3D.TriangleIndices.Add(0);
pMeshGeometry3D.TriangleIndices.Add(2);
pMeshGeometry3D.TriangleIndices.Add(1);
pMeshGeometry3D.TriangleIndices.Add(2);
pMeshGeometry3D.TriangleIndices.Add(3);
pMeshGeometry3D.TriangleIndices.Add(1);
Viewport2DVisual3D.Geometry = pMeshGeometry3D;
// Create a visual brush which we apply to our material.
VisualBrush = new VisualBrush();
VisualBrush.Visual = Content;
// Create a material which wraps this brush.
var pDiffuse = new DiffuseMaterial();
pDiffuse.Brush = Brushes.White;
Viewport2DVisual3D.SetIsVisualHostMaterial(pDiffuse, true);
Viewport2DVisual3D.Material = new DiffuseMaterial(VisualBrush);
Viewport2DVisual3D.Visual = Content;
// Transform.
Viewport2DVisual3D.Transform = HomographyTransform;
}
/// <summary>
/// Get a display by looking up it's visual 3d model. This is useful for handling hit test results.
/// </summary>
/// <param name="pVisual3D">The 3D model.</param>
/// <returns>Null if not found or the display reference if found.</returns>
public Display GetDisplayByViewport(Viewport2DVisual3D pVisual3D)
{
// For each display, find a matching visual.
foreach (var d in dDisplays.Values)
{
if (d.Viewport2DVisual3D == pVisual3D)
return d;
}
return null;
}
internal static void OnMaterialPropertyChanged(Object sender, DependencyPropertyChangedEventArgs e)
{
Viewport2DVisual3D viewport2DVisual3D = ((Viewport2DVisual3D)sender);
viewport2DVisual3D.GenerateMaterial();
}
internal static void OnCacheModeChanged(Object sender, DependencyPropertyChangedEventArgs e)
{
Viewport2DVisual3D viewport2DVisual3D = ((Viewport2DVisual3D)sender);
BitmapCache oldValue = (CacheMode)e.OldValue as BitmapCache;
BitmapCache newValue = (CacheMode)e.NewValue as BitmapCache;
if (oldValue != newValue)
{
viewport2DVisual3D.InternalBitmapCacheBrush.BitmapCache = newValue;
//
// The BitmapCacheBrush doesn't point directly at the Visual like the VisualBrush does,
// since BitmapCacheBrush ignores most properties on a Visual by design. In order for
// those properties to be respected to match the internal VisualBrush's behavior, we insert
// a dummy Visual node between the V2DV3D and its 2D Visual. We then target the dummy
// node with the brush instead.
//
if (oldValue == null)
{
//
// If we are swapping from using the VisualBrush to using the BitmapCacheBrush...
//
// Remove the visual child from the V2DV3D and add the dummy child.
viewport2DVisual3D.RemoveVisualChild(viewport2DVisual3D.Visual);
viewport2DVisual3D.AddVisualChild(viewport2DVisual3D.InternalBitmapCacheBrush.InternalTarget);
Debug.Assert((viewport2DVisual3D.InternalBitmapCacheBrush.InternalTarget == null ||
viewport2DVisual3D.InternalBitmapCacheBrush.InternalTarget.InheritanceContext == null),
"Expected AddVisualChild to remove the InheritanceContext on InternalTarget");
// Swap the brush pointing to the visual. The cache brush will re-parent the visual to the dummy.
viewport2DVisual3D.InternalVisualBrush.Visual = null;
viewport2DVisual3D.InternalBitmapCacheBrush.Target = viewport2DVisual3D.Visual;
// setting the cache brush to use this new child should not invalidate our previous condition
Debug.Assert((viewport2DVisual3D.InternalBitmapCacheBrush.InternalTarget == null ||
viewport2DVisual3D.InternalBitmapCacheBrush.InternalTarget.InheritanceContext == null),
"Expected the InternalBitmapCacheBrush not to set the InheritanceContext");
}
if (newValue == null)
{
//
// If we are swapping from using the BitmapCacheBrush to using the VisualBrush...
//
// Swap the brush pointing to the visual. The cache brush will remove the dummy as the parent
// of the visual.
viewport2DVisual3D.InternalBitmapCacheBrush.Target = null;
viewport2DVisual3D.InternalVisualBrush.Visual = viewport2DVisual3D.Visual;
// Remove the dummy child and re-add the visual as the V2DV3D's child.
viewport2DVisual3D.RemoveVisualChild(viewport2DVisual3D.InternalBitmapCacheBrush.InternalTarget);
viewport2DVisual3D.AddVisualChild(viewport2DVisual3D.Visual);
Debug.Assert((viewport2DVisual3D.Visual == null || viewport2DVisual3D.Visual.InheritanceContext == null),
"Expected AddVisualChild to remove the InheritanceContext on Visual");
}
// If we changed from using one brush to the other we need to regenerate the Material.
if (oldValue == null || newValue == null)
{
viewport2DVisual3D.GenerateMaterial();
}
}
}
//
// CONSTRUCTOR
//
public MosaicFootprint(BitmapImage image, double xmin, double ymin, double xmax, double ymax, double height, ModelVisual3D highlightlines, ModelVisual3D selectedlines)
{
//
this.Attributes = new Dictionary<string, object>();
this.Image = image;
this.XMin = xmin;
this.YMin = ymin;
this.XMax = xmax;
this.YMax = ymax;
this.Height = height;
this.HighlightLines = highlightlines;
this.SelectedLines = selectedlines;
// Define normals
Vector3DCollection normals = new Vector3DCollection();
normals.Add(new Vector3D(0, 0, 1));
normals.Add(new Vector3D(0, 0, 1));
normals.Add(new Vector3D(0, 0, 1));
normals.Add(new Vector3D(0, 0, 1));
normals.Add(new Vector3D(0, 0, 1));
normals.Add(new Vector3D(0, 0, 1));
// Define vertex positions
Point3DCollection positions = new Point3DCollection();
positions.Add(new Point3D(this.XMin, this.YMin, this.Height));
positions.Add(new Point3D(this.XMin, this.YMax, this.Height));
positions.Add(new Point3D(this.XMax, this.YMax, this.Height));
positions.Add(new Point3D(this.XMax, this.YMin, this.Height));
// Define textures
PointCollection textureCoordinates = new PointCollection();
textureCoordinates.Add(new Point(0, 1));
textureCoordinates.Add(new Point(0, 0));
textureCoordinates.Add(new Point(1, 0));
textureCoordinates.Add(new Point(1, 1));
// Define triangles
Int32Collection triangleIndices = new Int32Collection();
triangleIndices.Add(0);
triangleIndices.Add(3);
triangleIndices.Add(2);
triangleIndices.Add(2);
triangleIndices.Add(1);
triangleIndices.Add(0);
// Create Border (up facing) with image texture
this.Element = new Border() {
Cursor = Cursors.Hand,
Height = 100,
Width = 100,
Background = new ImageBrush() {
ImageSource = this.Image,
Stretch = Stretch.Fill
}
};
this.Element.MouseEnter += (s, e) => {
this.IsMouseOver = true;
};
this.Element.MouseLeave += (s, e) => {
this.IsMouseOver = false;
};
// Create Viewport2DVisual3D from Border
Viewport2DVisual3D top = new Viewport2DVisual3D() {
Geometry = new MeshGeometry3D() {
Normals = normals,
Positions = positions,
TextureCoordinates = textureCoordinates,
TriangleIndices = triangleIndices
},
Material = new DiffuseMaterial() {
Brush = new SolidColorBrush() {
Color = Colors.White
},
AmbientColor = Colors.White
},
Visual = this.Element
};
Viewport2DVisual3D.SetIsVisualHostMaterial(top.Material, true);
// Create down facing texture
ModelUIElement3D bottom = new ModelUIElement3D() {
IsHitTestVisible = true,
Model = new GeometryModel3D() {
Geometry = new MeshGeometry3D() {
Normals = normals,
Positions = positions,
TextureCoordinates = textureCoordinates,
TriangleIndices = triangleIndices
},
BackMaterial = new DiffuseMaterial() {
Brush = new SolidColorBrush() {
Color = Colors.LightGray
}
}
}
};
// Create Model
ModelVisual3D model = new ModelVisual3D();
model.Children.Add(top);
model.Children.Add(bottom);
this.ModelVisual = model;
}
private static void OnCacheInvalidationThresholdMaximumChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
Viewport2DVisual3D viewport2D = (Viewport2DVisual3D)d;
RenderOptions.SetCacheInvalidationThresholdMaximum(viewport2D._visualBrush, (double)e.NewValue);
}
private void BuildBack()
{
var geometry = new MeshGeometry3D();
double x = CubeLength / 2;
double y = CubeHeight / 2;
double z = CubeWidth / 2;
geometry.Positions = new Point3DCollection((new Point3D[]
{
new Point3D(-x, -y,-z), //左下角
new Point3D(x,-y,-z), //右下角
new Point3D(x,y,-z), //右上角
new Point3D(-x,y,-z) //左上角
}));
//三角形构造,影响呈现的正反面
geometry.TriangleIndices = new Int32Collection(new int[] { 0, 2, 1, 0, 3, 2 });
//纹理
geometry.TextureCoordinates = new PointCollection(new Point[] { new Point(0, 0), new Point(1, 0), new Point(1, 1), new Point(0, 1) });
if (backViewPort != null)
{
backViewPort.Geometry = geometry;
return;
}
//背面
backViewPort = new Viewport2DVisual3D();
backViewPort.Geometry = geometry;
var grid = new Grid();
if (BackContent != null)
backViewPort.Visual = BackContent;
else
{
grid.Children.Add(new TextBlock() { Text = "背面", Background = Brushes.Blue });
backViewPort.Visual = grid;
}
backViewPort.Material = material;
Children.Add(backViewPort);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="visual3D">The Visual3D that contains the 2D visual</param>
/// <param name="fromVisual">The visual on the Visual3D</param>
internal GeneralTransform2DTo3DTo2D(Viewport2DVisual3D visual3D, Visual fromVisual)
{
IsInverse = false;
// get a copy of the geometry information - we store our own model to reuse hit
// test code on the GeometryModel3D
_geometry = new MeshGeometry3D();
_geometry.Positions = visual3D.InternalPositionsCache;
_geometry.TextureCoordinates = visual3D.InternalTextureCoordinatesCache;
_geometry.TriangleIndices = visual3D.InternalTriangleIndicesCache;
_geometry.Freeze();
Visual visual3Dchild = visual3D.Visual;
// Special case - Setting CacheMode on V2DV3D causes an internal switch from using a VisualBrush
// to using a BitmapCacheBrush. It also introduces an extra 2D Visual in the Visual tree above
// the V2DV3D.Visual, but this extra node has no effect on transforms and can safely be ignored.
// The transform returned will be identical to the one created for calling TransformTo* with
// the V2DV3D.Visual itself.
Visual descendentVisual = (fromVisual == visual3Dchild._parent) ? visual3Dchild : fromVisual;
// get a copy of the size of the visual brush and the rect on the
// visual that the transform is going to/from
_visualBrushBounds = visual3Dchild.CalculateSubgraphRenderBoundsOuterSpace();
_visualBounds = descendentVisual.CalculateSubgraphRenderBoundsInnerSpace();
// get the transform that will let us go from the fromVisual to its last 2D
// parent before it reaches the 3D part of the graph (i.e. visual3D.Child)
GeneralTransformGroup transformGroup = new GeneralTransformGroup();
transformGroup.Children.Add(descendentVisual.TransformToAncestor(visual3Dchild));
transformGroup.Children.Add(visual3Dchild.TransformToOuterSpace());
transformGroup.Freeze();
_transform2D = transformGroup;
// store the inverse as well
_transform2DInverse = (GeneralTransform)_transform2D.Inverse;
if (_transform2DInverse != null)
{
_transform2DInverse.Freeze();
}
// make a copy of the camera and other values on the Viewport3D
Viewport3DVisual viewport3D = (Viewport3DVisual)VisualTreeHelper.GetContainingVisual2D(visual3D);
_camera = viewport3D.Camera;
if (_camera != null)
{
_camera = (Camera)viewport3D.Camera.GetCurrentValueAsFrozen();
}
_viewSize = viewport3D.Viewport.Size;
_boundingRect = viewport3D.ComputeSubgraphBounds3D();
_objectToViewport = visual3D.TransformToAncestor(viewport3D);
// if the transform was not possible, it could be null - check before freezing
if (_objectToViewport != null)
{
_objectToViewport.Freeze();
}
// store the needed transformations for the various operations
_worldTransformation = M3DUtil.GetWorldTransformationMatrix(visual3D);
_validEdgesCache = null;
}
/// <summary>
/// Returns an interactive 3D model that hosts
/// the specified UIElement.
/// </summary>
Viewport2DVisual3D BuildModel(UIElement element)
{
var model = new Viewport2DVisual3D
{
Geometry = new MeshGeometry3D
{
TriangleIndices = new Int32Collection(
new int[] { 0, 1, 2, 2, 3, 0 }),
TextureCoordinates = new PointCollection(
new Point[]
{
new Point(0, 1),
new Point(1, 1),
new Point(1, 0),
new Point(0, 0)
}),
Positions = new Point3DCollection(
new Point3D[]
{
new Point3D(-1, -1, 0),
new Point3D(+1, -1, 0),
new Point3D(+1, +1, 0),
new Point3D(-1, +1, 0)
})
},
Material = new DiffuseMaterial() { },
Transform = new TranslateTransform3D(),
// Host the 2D element in the 3D model.
Visual = element
};
Viewport2DVisual3D.SetIsVisualHostMaterial(model.Material, true);
return model;
}
private void UserControl_Loaded(object sender, RoutedEventArgs e)
{
try
{
//_quick = new BackdropQuick();
//_quick.Show();
//_quick.ValueChanged += _quick_ValueChanged;
//NOTE: This MUST be set in loaded, or keyboard events get very flaky (even if the usercontrol has focus, something
//inside of it must also have focus)
lblFocusable.Focus();
// Setting these up now so that the order stays consistent (so that semitransparency will work)
#region Back visual
_backVisual = new ModelVisual3D();
if (_graphic == null)
{
_backVisual.Content = GetBlankModel();
}
else
{
_backVisual.Content = _graphic.Model;
}
_viewport.Children.Add(_backVisual);
#endregion
#region 2D panel
DiffuseMaterial diffuse = new DiffuseMaterial(Brushes.White);
Viewport2DVisual3D.SetIsVisualHostMaterial(diffuse, true);
grd3D = new Grid();
grd3D.ColumnDefinitions.Add(new ColumnDefinition() { Width = new GridLength(2, GridUnitType.Star) });
grd3D.ColumnDefinitions.Add(new ColumnDefinition() { Width = new GridLength(.5, GridUnitType.Star) });
grd3D.ColumnDefinitions.Add(new ColumnDefinition() { Width = new GridLength(1, GridUnitType.Star) });
Grid.SetColumn(pnlLeft, 0);
Grid.SetColumn(pnlDetail, 2);
grd3D.Children.Add(pnlLeft);
grd3D.Children.Add(pnlDetail);
_visual2D3D = new Viewport2DVisual3D();
_visual2D3D.Material = diffuse;
//_visual2D3D.Geometry = GetGeometry(_quick.CylinderNumSegments, _quick.CylinderThetaOffset, _quick.CylinderHeight, _quick.CylinderRadius, _quick.CylinderTranslate);
_visual2D3D.Geometry = GetGeometry(NUMSEGMENTS, THETA, HEIGHT, RADIUS, TRANSLATE);
_visual2D3D.Visual = grd3D;
_visual2D3D.Transform = new TranslateTransform3D(0, 0, _cameraLength * .3);
_viewport.IsHitTestVisible = true;
_viewport.Children.Add(_visual2D3D);
#endregion
#region Detail Visual
_detailVisual = new ModelVisual3D();
_detailVisual.Content = GetBlankModel();
Transform3DGroup transform = new Transform3DGroup();
_detailRotationInitial = new QuaternionRotation3D();
transform.Children.Add(new RotateTransform3D(_detailRotationInitial));
_detailRotationAnimate = new AxisAngleRotation3D(new Vector3D(0, 1, 0), 0);
transform.Children.Add(new RotateTransform3D(_detailRotationAnimate));
_detailTranslate = new TranslateTransform3D(0, 0, 0); // this one is so the model can be centered on zero
transform.Children.Add(_detailTranslate);
_detailScale = new ScaleTransform3D(1, 1, 1);
transform.Children.Add(_detailScale);
transform.Children.Add(new TranslateTransform3D(_cameraLength * .1, 0, 0)); // this one is so the visual is shifted into the final place on screen
_detailVisual.Transform = transform;
_viewport.Children.Add(_detailVisual);
UpdateDetailVisual();
#endregion
_detailAnimate = AnimateRotation.Create_Constant(_detailRotationAnimate, 30);
chkIs3D.IsChecked = _is3DPanel;
_isInitialized = true;
Update2D3DPanels();
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "BackdropPanel", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
void ConfigureModel(Viewport2DVisual3D model, int index)
{
if (index == selectedIndex)
{
var transformGroup = GetSelectedModelTransform(index);
model.Transform = transformGroup;
}
else
{
var transformGroup = GetModelTransforms(index);
model.Transform = transformGroup;
}
var elem = model.Visual as UIElement;
elem.BeginAnimation(UIElement.OpacityProperty, null);
elem.Opacity = this.GetElementOpacity(index);// this.AutoAdjustOpacity ? this.GetElementOpacity(index) : 1.0;
}
Viewport2DVisual3D GetNextModel(Viewport2DVisual3D current)
{
if (!_models.Contains(current))
throw new ArgumentException("current");
// Wrap to the start of the list if necessary.
int idx = _models.IndexOf(current) + 1;
if (idx == _models.Count)
idx = 0;
return _models[idx];
}
Viewport2DVisual3D GetPreviousModel(Viewport2DVisual3D current)
{
if (!_models.Contains(current))
throw new ArgumentException("current");
// Wrap to the end of the list if necessary.
int idx = _models.IndexOf(current) - 1;
if (idx == -1)
idx = _models.Count - 1;
return _models[idx];
}
public void BuildScene(Viewport2DVisual3D frontModel)
{
int oldViewRangeStartIndex = ViewRangeStartIndex;
int oldViewingRangeStopIndex = ViewingRangeStopIndex;
//Determine what items to build
SetViewRangeStartStopIndex();
//Ensure these values are within a range that wont error the GetRange() method call
ViewRangeStartIndex = ViewRangeStartIndex < 0 ? 0 : ViewRangeStartIndex;
ViewingRangeStopIndex = ViewingRangeStopIndex > _models.Count - 1 ? _models.Count : ViewingRangeStopIndex;
if (isMoveingPeiceIntoView == false)
{
if (oldViewRangeStartIndex != ViewRangeStartIndex || oldViewingRangeStopIndex != ViewingRangeStopIndex || needsUpdate == true)
{
methodFireCount++;
// Debug.WriteLine("Build Method Internal Has Fired :" + methodFireCount);
_viewport.RemoveAllModels();
var current = frontModel;
int modelCounter = ViewRangeStartIndex;
// Debug.WriteLine("Build Start and End Index :" + ViewRangeStartIndex + " " + (ViewingRangeStopIndex - ViewRangeStartIndex));
foreach (var item in _models.GetRange(ViewRangeStartIndex, (ViewingRangeStopIndex) - ViewRangeStartIndex))
{
this.ConfigureModel(item, modelCounter);
_viewport.AddToBack(item);
modelCounter++;
}
needsUpdate = false;
}
}
}
private void BuildUp()
{
var geometry = new MeshGeometry3D();
double x = CubeLength / 2;
double y = CubeHeight / 2;
double z = CubeWidth / 2;
geometry.Positions = new Point3DCollection((new Point3D[]
{
new Point3D(-x, y,z),
new Point3D(x,y,z),
new Point3D(x,y,-z),
new Point3D(-x,y,-z)
}));
//三角形构造,影响呈现的正反面
geometry.TriangleIndices = new Int32Collection(new int[] { 0, 1, 2, 2, 3, 0 });
//纹理
geometry.TextureCoordinates = new PointCollection(new Point[] { new Point(0, 1), new Point(1, 1), new Point(1, 0), new Point(0, 0) });
if (upViewPort != null)
{
upViewPort.Geometry = geometry;
return;
}
//顶层
upViewPort = new Viewport2DVisual3D();
upViewPort.Geometry = geometry;
var grid = new Grid();
if (UpContent != null)
upViewPort.Visual = UpContent;
else
{
grid.Children.Add(new TextBlock() { Text = "顶部", Background = Brushes.Blue });
upViewPort.Visual = grid;
}
upViewPort.Material = material;
Children.Add(upViewPort);
}
