internal static Point Point3DInViewport3D(Viewport3D viewport, Matrix3D viewportToWorld, Point3D point)
{
Camera camera = viewport.Camera;
Point3D point1 = viewportToWorld.Transform(point);
Point3D point3D = Helper3D.CameraRotationTranslationMatrix(camera).Transform(point1);
Point4D point2 = new Point4D(point3D.X, point3D.Y, point3D.Z, 1.0);
Point4D point4D = AdornedToolBehavior3D.ProjectionMatrix(viewport.ActualWidth, viewport.ActualHeight, camera).Transform(point2);
Point point3 = Math.Abs(point4D.W) >= 0.0 / 1.0 ? new Point(point4D.X / point4D.W, point4D.Y / point4D.W) : new Point(0.0, 0.0);
return new Point((point3.X + 1.0) * viewport.ActualWidth / 2.0, viewport.ActualHeight * ((1.0 - point3.Y) / 2.0));
}
internal static Point3D ProjectionPoint3DTranslatedToMatchingOrthographicPosition(Viewport3D viewport, Matrix3D pointToWorldTransform, OrthographicCamera ortho, Point3D point)
{
Camera camera = viewport.Camera;
Point3D point1 = pointToWorldTransform.Transform(point);
Point3D point3D = Helper3D.CameraRotationTranslationMatrix(camera).Transform(point1);
Point4D point2 = new Point4D(point3D.X, point3D.Y, point3D.Z, 1.0);
Point4D point4D1 = AdornedToolBehavior3D.ProjectionMatrix(viewport.ActualWidth, viewport.ActualHeight, camera).Transform(point2);
Point4D point3 = new Point4D(point4D1.X / point4D1.W, point4D1.Y / point4D1.W, 0.0, 1.0);
Matrix3D matrix3D1 = AdornedToolBehavior3D.ProjectionMatrix(viewport.ActualWidth, viewport.ActualHeight, (Camera) ortho);
if (Math.Abs(matrix3D1.Determinant) > 1E-16)
matrix3D1.Invert();
Point4D point4D2 = matrix3D1.Transform(point3);
Point3D point4 = new Point3D(point4D2.X / point4D2.W, point4D2.Y / point4D2.W, point3D.Z);
Matrix3D matrix3D2 = Helper3D.CameraRotationTranslationMatrix((Camera) ortho);
matrix3D2.Invert();
return matrix3D2.Transform(point4);
}
public static void DrawCube(DrawingContext drawingContext, Matrix matrix, Base3DElement element, Pen pen)
{
Viewport3DElement viewport1 = element.Viewport;
if (viewport1 == null)
{
return;
}
Viewport3D viewport2 = viewport1.ViewObject.PlatformSpecificObject as Viewport3D;
Rect3D localSpaceBounds = element.LocalSpaceBounds;
Matrix3D viewport3DtoElement = element.GetComputedTransformFromViewport3DToElement();
Matrix3D matrix3D = Helper3D.CameraRotationTranslationMatrix(viewport2.Camera);
Matrix3D cameraToObject = viewport3DtoElement * matrix3D;
KeyValuePair <Point, bool> keyValuePair1 = HighlightAdorner3D.Calculate2DPoint(viewport2, cameraToObject, viewport3DtoElement, matrix, localSpaceBounds.Location);
KeyValuePair <Point, bool> keyValuePair2 = HighlightAdorner3D.Calculate2DPoint(viewport2, cameraToObject, viewport3DtoElement, matrix, localSpaceBounds.Location + new Vector3D(localSpaceBounds.SizeX, 0.0, 0.0));
KeyValuePair <Point, bool> keyValuePair3 = HighlightAdorner3D.Calculate2DPoint(viewport2, cameraToObject, viewport3DtoElement, matrix, localSpaceBounds.Location + new Vector3D(localSpaceBounds.SizeX, localSpaceBounds.SizeY, 0.0));
KeyValuePair <Point, bool> keyValuePair4 = HighlightAdorner3D.Calculate2DPoint(viewport2, cameraToObject, viewport3DtoElement, matrix, localSpaceBounds.Location + new Vector3D(0.0, localSpaceBounds.SizeY, 0.0));
KeyValuePair <Point, bool> keyValuePair5 = HighlightAdorner3D.Calculate2DPoint(viewport2, cameraToObject, viewport3DtoElement, matrix, localSpaceBounds.Location + new Vector3D(0.0, 0.0, localSpaceBounds.SizeZ));
KeyValuePair <Point, bool> keyValuePair6 = HighlightAdorner3D.Calculate2DPoint(viewport2, cameraToObject, viewport3DtoElement, matrix, localSpaceBounds.Location + new Vector3D(localSpaceBounds.SizeX, 0.0, localSpaceBounds.SizeZ));
KeyValuePair <Point, bool> keyValuePair7 = HighlightAdorner3D.Calculate2DPoint(viewport2, cameraToObject, viewport3DtoElement, matrix, localSpaceBounds.Location + new Vector3D(localSpaceBounds.SizeX, localSpaceBounds.SizeY, localSpaceBounds.SizeZ));
KeyValuePair <Point, bool> keyValuePair8 = HighlightAdorner3D.Calculate2DPoint(viewport2, cameraToObject, viewport3DtoElement, matrix, localSpaceBounds.Location + new Vector3D(0.0, localSpaceBounds.SizeY, localSpaceBounds.SizeZ));
StreamGeometry streamGeometry = new StreamGeometry();
StreamGeometryContext context = streamGeometry.Open();
HighlightAdorner3D.DrawLine(context, keyValuePair1, keyValuePair2);
HighlightAdorner3D.DrawLine(context, keyValuePair2, keyValuePair3);
HighlightAdorner3D.DrawLine(context, keyValuePair3, keyValuePair4);
HighlightAdorner3D.DrawLine(context, keyValuePair4, keyValuePair1);
HighlightAdorner3D.DrawLine(context, keyValuePair5, keyValuePair6);
HighlightAdorner3D.DrawLine(context, keyValuePair6, keyValuePair7);
HighlightAdorner3D.DrawLine(context, keyValuePair7, keyValuePair8);
HighlightAdorner3D.DrawLine(context, keyValuePair8, keyValuePair5);
HighlightAdorner3D.DrawLine(context, keyValuePair6, keyValuePair2);
HighlightAdorner3D.DrawLine(context, keyValuePair7, keyValuePair3);
HighlightAdorner3D.DrawLine(context, keyValuePair5, keyValuePair1);
HighlightAdorner3D.DrawLine(context, keyValuePair8, keyValuePair4);
context.Close();
streamGeometry.Freeze();
drawingContext.DrawGeometry((Brush)null, pen, (System.Windows.Media.Geometry)streamGeometry);
}