public object Deserialize(object o, Altaxo.Serialization.Xml.IXmlDeserializationInfo info, object parent)
{
RectangleD3D s = null != o ? (RectangleD3D)o : new RectangleD3D();
s._x = info.GetDouble("X");
s._y = info.GetDouble("Y");
s._z = info.GetDouble("Z");
s._sizeX = info.GetDouble("SizeX");
s._sizeY = info.GetDouble("SizeY");
s._sizeZ = info.GetDouble("SizeZ");
return(s);
}
/// <summary>
/// Creates a new rectangle that includes all the provided points.
/// </summary>
/// <param name="points">The points that the rectangle should include.</param>
/// <returns>The rectangle that includes all the provided points.</returns>
/// <exception cref="System.ArgumentException">Enumeration is empty!</exception>
public static RectangleD3D NewRectangleIncludingAllPoints(IEnumerable <PointD3D> points)
{
var en = points.GetEnumerator();
if (!en.MoveNext())
{
throw new ArgumentException("Enumeration is empty!", nameof(points));
}
var result = new RectangleD3D(en.Current, VectorD3D.Empty);
while (en.MoveNext())
{
result.ExpandToInclude(en.Current);
}
return(result);
}
/// <summary>
/// Determines whether the grip is hit by the current mouse position.
/// </summary>
/// <param name="mousePosition">The mouse position (hit ray).</param>
/// <returns></returns>
public bool IsGripHit(HitTestPointData mousePosition)
{
var vec = new VectorD3D(_gripRadius, _gripRadius, _gripRadius);
var rect = new RectangleD3D(_gripCenter - vec, 2 * vec);
double z;
return mousePosition.IsHit(rect, out z);
}
/// <summary>
/// Gets the rectangle for the background to draw. Used both by <see cref="Measure"/> as well as <see cref="Draw"/>.
/// </summary>
/// <param name="itemRectangle">The item rectangle.</param>
/// <returns></returns>
private RectangleD3D GetRectangleToDraw(RectangleD3D itemRectangle)
{
return new RectangleD3D(
itemRectangle.X - _padding.Left,
itemRectangle.Y - _padding.Bottom,
itemRectangle.Z - _resultingDistance - itemRectangle.SizeZ,
itemRectangle.SizeX + _padding.Left + _padding.Right,
itemRectangle.SizeY + _padding.Top + _padding.Bottom,
_resultingThickness
);
}
internal LineShapeObjectOutline(Matrix4x3 transformation, RectangleD3D bounds)
{
_transformation = transformation;
_bounds = bounds;
}
protected override IGripManipulationHandle[] GetGrips(IHitTestObject hitTest, GripKind gripKind)
{
var list = new List<IGripManipulationHandle>();
/*
const double gripNominalSize = 10; // 10 Points nominal size on the screen
if ((GripKind.Resize & gripKind) != 0)
{
double gripSize = gripNominalSize / pageScale; // 10 Points, but we have to consider the current pageScale
for (int i = 1; i < _gripRelPositions.Length; i++)
{
PointD2D outVec, pos;
if (1 == i % 2)
GetCornerOutVector(_gripRelPositions[i], hitTest, out outVec, out pos);
else
GetMiddleRayOutVector(_gripRelPositions[i], hitTest, out outVec, out pos);
outVec *= (gripSize / outVec.VectorLength);
PointD2D altVec = outVec.Get90DegreeRotated();
PointD2D ptStart = pos;
list.Add(new ResizeGripHandle(hitTest, _gripRelPositions[i], new MatrixD2D(outVec.X, outVec.Y, altVec.X, altVec.Y, ptStart.X, ptStart.Y)));
}
}
*/
/*
if ((GripKind.Rotate & gripKind) != 0)
{
double gripSize = 10 / pageScale;
// Rotation grips
for (int i = 1; i < _gripRelPositions.Length; i += 2)
{
PointD2D outVec, pos;
GetCornerOutVector(_gripRelPositions[i], hitTest, out outVec, out pos);
outVec *= (gripSize / outVec.VectorLength);
PointD2D altVec = outVec.Get90DegreeRotated();
PointD2D ptStart = pos;
list.Add(new RotationGripHandle(hitTest, _gripRelPositions[i], new MatrixD2D(outVec.X, outVec.Y, altVec.X, altVec.Y, ptStart.X, ptStart.Y)));
}
}
*/
/*
if ((GripKind.Rescale & gripKind) != 0)
{
double gripSize = 10 / pageScale; // 10 Points, but we have to consider the current pageScale
for (int i = 1; i < _gripRelPositions.Length; i++)
{
PointD2D outVec, pos;
if (1 == i % 2)
GetCornerOutVector(_gripRelPositions[i], hitTest, out outVec, out pos);
else
GetMiddleRayOutVector(_gripRelPositions[i], hitTest, out outVec, out pos);
outVec *= (gripSize / outVec.VectorLength);
PointD2D altVec = outVec.Get90DegreeRotated();
PointD2D ptStart = pos;
list.Add(new RescaleGripHandle(hitTest, _gripRelPositions[i], new MatrixD2D(outVec.X, outVec.Y, altVec.X, altVec.Y, ptStart.X, ptStart.Y)));
}
}
*/
/*
if ((GripKind.Shear & gripKind) != 0)
{
double gripSize = 10 / pageScale; // 10 Points, but we have to consider the current pageScale
for (int i = 2; i < _gripRelPositions.Length; i += 2)
{
PointD2D outVec, pos;
GetEdgeOutVector(_gripRelPositions[i], hitTest, out outVec, out pos);
outVec *= (gripSize / outVec.VectorLength);
PointD2D altVec = outVec.Get90DegreeRotated();
PointD2D ptStart = pos;
list.Add(new ShearGripHandle(hitTest, _gripRelPositions[i], new MatrixD2D(outVec.X, outVec.Y, altVec.X, altVec.Y, ptStart.X, ptStart.Y)));
}
}
*/
if ((GripKind.Move & gripKind) != 0)
{
var bounds = this.Bounds;
var wn = PolylineMath3D.GetWestNorthVectors(bounds.Size);
var transformation = Matrix4x3.NewFromBasisVectorsAndLocation(wn.Item1, wn.Item2, bounds.Size.Normalized, PointD3D.Empty);
transformation.AppendTransform(_transformation);
transformation.AppendTransform(hitTest.Transformation);
double t1 = 0.55 * _linePen.Thickness1;
double t2 = 0.55 * _linePen.Thickness2;
var rect = new RectangleD3D(-t1, -t2, 0, 2 * t1, 2 * t2, bounds.Size.Length);
var objectOutline = new RectangularObjectOutline(rect, transformation);
list.Add(new MovementGripHandle(hitTest, objectOutline, null));
}
return list.ToArray();
}
protected void MeasureBackground(IGraphicsContext3D g, double itemSizeX, double itemSizeY, double itemSizeZ)
{
var fontInfo = FontManager3D.Instance.GetFontInformation(_font);
double widthOfOne_n = Glyph.MeasureString("n", _font).X;
double widthOfThree_M = Glyph.MeasureString("MMM", _font).X;
if (this._background != null)
{
_cachedTextPadding = new Margin2D(
0.25 * widthOfOne_n,
fontInfo.cyDescent,
0.25 * widthOfOne_n,
fontInfo.cyDescent
);
}
else
{
_cachedTextPadding = new Margin2D(0, 0, 0, 0);
}
var paddedTextSize = new VectorD3D((itemSizeX + _cachedTextPadding.Left + _cachedTextPadding.Right), (itemSizeY + _cachedTextPadding.Bottom + _cachedTextPadding.Top), itemSizeZ);
var textRectangle = new RectangleD3D(PointD3D.Empty, paddedTextSize); // the origin of the padded text rectangle is always 0
if (this._background != null)
{
var backgroundRect = this._background.Measure(textRectangle);
_cachedExtendedTextBounds = backgroundRect.WithRectangleIncluded(textRectangle); // _cachedExtendedTextBounds.WithOffset(textRectangle.X - backgroundRect.X, textRectangle.Y - backgroundRect.Y, 0);
((ItemLocationDirectAutoSize)_location).SetSizeInAutoSizeMode(_cachedExtendedTextBounds.Size, false);
this._cachedTextOffset = new PointD3D(textRectangle.X - backgroundRect.X + _cachedTextPadding.Left, textRectangle.Y - backgroundRect.Y + _cachedTextPadding.Bottom, 0);
}
else
{
((ItemLocationDirectAutoSize)_location).SetSizeInAutoSizeMode(paddedTextSize, false);
_cachedExtendedTextBounds = textRectangle;
_cachedTextOffset = PointD3D.Empty;
}
}
public void Paint(IGraphicsContext3D g, IPlotArea layer, CSPlaneID plane, int axisnumber)
{
if (!_showGrid)
return;
Scale axis = layer.Scales[axisnumber];
TickSpacing ticking = layer.Scales[axisnumber].TickSpacing;
RectangleD3D layerRect = new RectangleD3D(PointD3D.Empty, layer.Size);
if (_showZeroOnly)
{
Altaxo.Data.AltaxoVariant var = new Altaxo.Data.AltaxoVariant(0.0);
double rel = axis.PhysicalVariantToNormal(var);
//_majorPen.SetEnvironment(layerRect, BrushX.GetEffectiveMaximumResolution(g, 1));
if (rel >= 0 && rel <= 1)
{
Logical3D logV = new Logical3D();
logV.SetR(plane.PerpendicularAxisNumber, plane.LogicalValue);
logV.SetR(axisnumber, rel);
var thirdAxisNumber = Logical3D.GetPerpendicularAxisNumber(plane.PerpendicularAxisNumber, axisnumber);
var line = layer.CoordinateSystem.GetIsoline(logV.WithR(thirdAxisNumber, 0), logV.WithR(thirdAxisNumber, 1));
g.DrawLine(MajorPen, line);
}
}
else
{
double[] ticks;
if (_showMinor)
{
//_minorPen.SetEnvironment(layerRect, BrushX.GetEffectiveMaximumResolution(g, 1));
ticks = ticking.GetMinorTicksNormal(axis);
for (int i = 0; i < ticks.Length; ++i)
{
Logical3D logV = new Logical3D();
logV.SetR(plane.PerpendicularAxisNumber, plane.LogicalValue);
logV.SetR(axisnumber, ticks[i]);
var thirdAxisNumber = Logical3D.GetPerpendicularAxisNumber(plane.PerpendicularAxisNumber, axisnumber);
var line = layer.CoordinateSystem.GetIsoline(logV.WithR(thirdAxisNumber, 0), logV.WithR(thirdAxisNumber, 1));
g.DrawLine(MinorPen, line);
}
}
//MajorPen.SetEnvironment(layerRect, BrushX.GetEffectiveMaximumResolution(g, 1));
ticks = ticking.GetMajorTicksNormal(axis);
for (int i = 0; i < ticks.Length; ++i)
{
Logical3D logV = new Logical3D();
logV.SetR(plane.PerpendicularAxisNumber, plane.LogicalValue);
logV.SetR(axisnumber, ticks[i]);
var thirdAxisNumber = Logical3D.GetPerpendicularAxisNumber(plane.PerpendicularAxisNumber, axisnumber);
var line = layer.CoordinateSystem.GetIsoline(logV.WithR(thirdAxisNumber, 0), logV.WithR(thirdAxisNumber, 1));
g.DrawLine(MajorPen, line);
}
}
}
public RectangularObjectOutline(RectangleD3D rectangle, Matrix4x3 transformation)
{
_rectangle = rectangle;
_transformation = transformation;
}
/// <summary>
/// Gets the principal coordinate system that results of the camera facing a layer. The plane of the layer that best faced the camera is used for the calculations.
/// The normal of that layer is returned as z-axis, the vector that best matches the up-vector of the camera is becoming the y-axis,
/// and the x-axis results from the z-axis and the y-axis.
/// </summary>
/// <param name="camera">The camera.</param>
/// <param name="activeLayer">The active layer of the graph document.</param>
/// <param name="transformation">Matrix that contains the principal axes as described above. The axes coordinates are in the coordinates of the layer provided in the argument <paramref name="activeLayer"/>.</param>
/// <exception cref="InvalidProgramException">There should always be a plane of a rectangle that can be hit!</exception>
public static void GetCoordinateSystemBasedOnLayerPlaneFacingTheCamera(CameraBase camera, HostLayer activeLayer, out Matrix3x3 transformation)
{
PointD3D hitposition = new PointD3D(0.5, 0.5, 1); // this hit position is arbitrary, every other position should work similarly
var activeLayerTransformation = activeLayer.TransformationFromRootToHere();
var hitData = new HitTestPointData(camera.GetHitRayMatrix(hitposition));
hitData = hitData.NewFromAdditionalTransformation(activeLayerTransformation); // now hitdata are in layer cos
var targetToEye = hitData.WorldTransformation.Transform(camera.TargetToEyeVectorNormalized); // targetToEye in layer coordinates
var upEye = hitData.WorldTransformation.Transform(camera.UpVectorPerpendicularToEyeVectorNormalized); // camera up vector in layer coordinates
// get the face which has the best dot product between the eye vector of the camera and the plane's normal
var layerRect = new RectangleD3D(PointD3D.Empty, activeLayer.Size);
double maxval = double.MinValue;
PlaneD3D maxPlane = PlaneD3D.Empty;
foreach (var plane in layerRect.Planes)
{
double val = VectorD3D.DotProduct(plane.Normal, targetToEye);
if (val > maxval)
{
maxval = val;
maxPlane = plane;
}
}
// bool isHit = hitData.IsPlaneHitByRay(maxPlane, out hitPointOnPlaneInActiveLayerCoordinates); // hitPointOnPlane is in layer coordinates too
// if (!isHit)
// throw new InvalidProgramException("There should always be a plane of a rectangle that can be hit!");
VectorD3D zaxis = maxPlane.Normal;
VectorD3D yaxis = upEye;
// Find y axis perpendicular to zaxis
maxval = double.MinValue;
foreach (var plane in layerRect.Planes)
{
double val = VectorD3D.DotProduct(plane.Normal, upEye);
if (val > maxval && 0 == VectorD3D.DotProduct(plane.Normal, zaxis))
{
maxval = val;
yaxis = plane.Normal;
}
}
var xaxis = VectorD3D.CrossProduct(yaxis, zaxis);
// now we have all information about the spatial position and orientation of the text:
// hitPointOnPlane is the position of the text
// maxPlane.Normal is the face orientation of the text
// maxUpVector is the up orientation of the text
xaxis = xaxis.Normalized;
yaxis = yaxis.Normalized;
zaxis = zaxis.Normalized;
transformation = new Matrix3x3(
xaxis.X, yaxis.X, zaxis.X,
xaxis.Y, yaxis.Y, zaxis.Y,
xaxis.Z, yaxis.Z, zaxis.Z
);
}
/// <summary>
/// Make the views to look at the root layer center. The scale is choosen so that the size of the plot will be maximal.
/// </summary>
/// <param name="toEyeVector">The To-Eye vector (vector from the target to the camera position).</param>
/// <param name="cameraUpVector">The camera up vector.</param>
/// <exception cref="System.NotImplementedException"></exception>
public void ViewToRootLayerCenter(VectorD3D toEyeVector, VectorD3D cameraUpVector)
{
double aspectRatio = 1;
if (null != _view)
{
var viewportSize = _view.ViewportSizeInPoints;
aspectRatio = viewportSize.Y / viewportSize.X;
}
if ((VectorD3D.CrossProduct(toEyeVector, cameraUpVector).IsEmpty))
throw new ArgumentOutOfRangeException(nameof(cameraUpVector) + " is either empty or is parallel to the eyeVector");
var upVector = Math3D.GetNormalizedVectorOrthogonalToVector(cameraUpVector, toEyeVector);
var targetPosition = (PointD3D)(0.5 * Doc.RootLayer.Size);
var cameraDistance = 10 * Doc.RootLayer.Size.Length;
var eyePosition = cameraDistance * toEyeVector.Normalized + targetPosition;
var newCamera = Doc.Camera.WithUpEyeTarget(upVector, eyePosition, targetPosition);
if (newCamera is OrthographicCamera)
{
var orthoCamera = (OrthographicCamera)newCamera.WithWidthAtZNear(1);
var mx = orthoCamera.GetViewProjectionMatrix(aspectRatio);
// to get the resulting scale, we transform all vertices of the root layer (the destination range would be -1..1, but now is not in range -1..1)
// then we search for the maximum of the absulute value of x and y. This is our scale.
double absmax = 0;
foreach (var p in new RectangleD3D(Doc.RootLayer.Position, Doc.RootLayer.Size).Vertices)
{
var ps = mx.Transform(p);
absmax = Math.Max(absmax, Math.Abs(ps.X));
absmax = Math.Max(absmax, Math.Abs(ps.Y));
}
newCamera = orthoCamera.WithWidthAtZNear(absmax);
}
else if (newCamera is PerspectiveCamera)
{
var perspCamera = (PerspectiveCamera)newCamera;
// use worst case
var diameter = Doc.RootLayer.Size.Length; // diagonal of the root layer = radius of sphere in the worst case
double minWidthHeight = Math.Min(perspCamera.WidthAtZNear, perspCamera.WidthAtZNear * aspectRatio);
var distanceWorstCase = diameter * perspCamera.ZNear / minWidthHeight;
if (distanceWorstCase > perspCamera.Distance)
perspCamera = (PerspectiveCamera)perspCamera.WithDistanceByChangingEyePosition(distanceWorstCase);
var rootRect = new RectangleD3D(PointD3D.Empty, Doc.RootLayer.Size);
for (int i = 0; i < 5; ++i) // 5 iterations to get the right distance
{
var viewProj = perspCamera.GetViewProjectionMatrix(aspectRatio);
var screenRect = RectangleD2D.NewRectangleIncludingAllPoints(rootRect.Vertices.Select(v => viewProj.Transform(v).PointD2DWithoutZ));
double maxScreen = 0;
foreach (var v in screenRect.Vertices)
{
maxScreen = Math.Max(maxScreen, Math.Abs(v.X));
maxScreen = Math.Max(maxScreen, Math.Abs(v.Y));
}
// now we could decrease the camera distance by maxScreen, but this is only an estimation
perspCamera = (PerspectiveCamera)perspCamera.WithDistanceByChangingEyePosition(perspCamera.Distance * maxScreen);
}
newCamera = perspCamera;
}
else
{
throw new NotImplementedException("Unknown camera type");
}
Doc.Camera = AdjustZNearZFar(newCamera);
}
public void DrawRootLayerMarkers(IOverlayContext3D gc)
{
var buf = gc.PositionColorIndexedTriangleBuffers;
VectorD3D size = Doc.RootLayer.Size;
double markerLen = Math.Max(size.X, Math.Max(size.Y, size.Z)) / 20.0;
double markerLenBy2 = markerLen / 2;
double markerThicknessBy2 = markerLenBy2 / 5.0;
RectangleD3D rect = new RectangleD3D(PointD3D.Empty, size);
if (_cachedResultingRootLayerMarkersVisibility.HasFlag(RootLayerMarkersVisibility.Arrows))
{
foreach (var pos in rect.Vertices)
{
var posX = pos.WithXPlus(pos.X == 0 ? markerLenBy2 : -markerLenBy2);
DrawMarkerX(buf, posX, markerLenBy2, markerThicknessBy2);
var posY = pos.WithYPlus(pos.Y == 0 ? markerLenBy2 : -markerLenBy2);
DrawMarkerY(buf, posY, markerLenBy2, markerThicknessBy2);
var posZ = pos.WithZPlus(pos.Z == 0 ? markerLenBy2 : -markerLenBy2);
DrawMarkerZ(buf, posZ, markerLenBy2, markerThicknessBy2);
}
}
if (_cachedResultingRootLayerMarkersVisibility.HasFlag(RootLayerMarkersVisibility.Lines))
{
var lineBuffer = gc.PositionColorLineListBuffer;
foreach (var line in rect.Edges)
{
lineBuffer.AddLine(line.P0.X, line.P0.Y, line.P0.Z, line.P1.X, line.P1.Y, line.P1.Z, 1, 0, 0, 1);
}
}
}
/// <summary>
/// Draws the specified background
/// </summary>
/// <param name="g">The drawing context.</param>
/// <param name="itemRectangle">Position and size of the item for which this background is intended. For text, this is the position and size of the text rectangle, already with a margin around.
/// This parameter should have the same size as was used in the previous call to <see cref="Measure(RectangleD3D)" /></param>
/// <param name="material">The material to use for this background.</param>
/// <exception cref="NotImplementedException"></exception>
public void Draw(IGraphicsContext3D g, RectangleD3D itemRectangle, IMaterial material)
{
var rectangleToDraw = GetRectangleToDraw(itemRectangle);
var buffers = g.GetPositionNormalIndexedTriangleBuffer(material);
if (null != buffers.PositionNormalColorIndexedTriangleBuffer)
{
var c = material.Color.Color;
var voffs = buffers.PositionNormalColorIndexedTriangleBuffer.VertexCount;
Altaxo.Drawing.D3D.SolidCube.Add(
rectangleToDraw.X, rectangleToDraw.Y, rectangleToDraw.Z, rectangleToDraw.SizeX, rectangleToDraw.SizeY, rectangleToDraw.SizeZ,
(point, normal) => buffers.PositionNormalColorIndexedTriangleBuffer.AddTriangleVertex(point.X, point.Y, point.Z, normal.X, normal.Y, normal.Z, c.ScR, c.ScG, c.ScB, c.ScA),
(i1, i2, i3) => buffers.IndexedTriangleBuffer.AddTriangleIndices(i1 + voffs, i2 + voffs, i3 + voffs),
ref voffs);
}
else if (null != buffers.PositionNormalIndexedTriangleBuffer)
{
var voffs = buffers.PositionNormalIndexedTriangleBuffer.VertexCount;
Altaxo.Drawing.D3D.SolidCube.Add(
rectangleToDraw.X, rectangleToDraw.Y, rectangleToDraw.Z, rectangleToDraw.SizeX, rectangleToDraw.SizeY, rectangleToDraw.SizeZ,
(point, normal) => buffers.PositionNormalIndexedTriangleBuffer.AddTriangleVertex(point.X, point.Y, point.Z, normal.X, normal.Y, normal.Z),
(i1, i2, i3) => buffers.IndexedTriangleBuffer.AddTriangleIndices(i1 + voffs, i2 + voffs, i3 + voffs),
ref voffs);
}
else
{
throw new NotImplementedException();
}
}
/// <summary>
/// Draws the specified background
/// </summary>
/// <param name="g">The drawing context.</param>
/// <param name="itemRectangle">Position and size of the item for which this background is intended. For text, this is the position and size of the text rectangle, already with a margin around.
/// This parameter should have the same size as was used in the previous call to <see cref="Measure(RectangleD3D)" /></param>
/// <exception cref="NotImplementedException"></exception>
public void Draw(IGraphicsContext3D g, RectangleD3D itemRectangle)
{
Draw(g, itemRectangle, _material);
}
/// <summary>
/// Saves the project item as image to the provided stream.
/// </summary>
/// <param name="item">The item to export, for instance an item of type <see cref="Altaxo.Graph.Gdi.GraphDocument"/> or <see cref="Altaxo.Graph.Graph3D.GraphDocument"/>.</param>
/// <param name="options">The export options.</param>
/// <param name="toStream">The stream to save the image to.</param>
public void ExportAsImageToStream(Altaxo.Main.IProjectItem item, Altaxo.Graph.Gdi.GraphExportOptions options, System.IO.Stream toStream)
{
if (item == null)
throw new ArgumentNullException(nameof(item));
if (!(item is Altaxo.Graph.Graph3D.GraphDocument))
throw new ArgumentException(string.Format("Expected item of type {0}, but it is of type {1}", typeof(Altaxo.Graph.Graph3D.GraphDocument), item.GetType()));
var doc = (Altaxo.Graph.Graph3D.GraphDocument)item;
double sourceDpi = options.SourceDpiResolution;
var exporter = new D3D10BitmapExporter();
var scene = new Viewing.D3D10Scene();
var g = new D3D10GraphicsContext();
doc.Paint(g);
var matrix = doc.Camera.LookAtRHMatrix;
var rect = new RectangleD3D(PointD3D.Empty, doc.RootLayer.Size);
var bounds = RectangleD3D.NewRectangleIncludingAllPoints(rect.Vertices.Select(x => matrix.Transform(x)));
int pixelsX = (int)Math.Ceiling(sourceDpi * bounds.SizeX / 72.0);
pixelsX = (int)(4 * Math.Ceiling((pixelsX + 3) / 4.0));
int pixelsY = (int)(sourceDpi * bounds.SizeY / 72.0);
double aspectRatio = pixelsY / (double)pixelsX;
var sceneCamera = doc.Camera;
if (sceneCamera is OrthographicCamera)
{
var orthoCamera = (OrthographicCamera)sceneCamera;
orthoCamera = (OrthographicCamera)orthoCamera.WithWidthAtZNear(bounds.SizeX);
double offsX = -(1 + 2 * bounds.X / bounds.SizeX);
double offsY = -(1 + 2 * bounds.Y / bounds.SizeY);
sceneCamera = orthoCamera.WithScreenOffset(new PointD2D(offsX, offsY));
}
else if (sceneCamera is PerspectiveCamera)
{
var viewProj = sceneCamera.GetViewProjectionMatrix(1); // here we transform the points with AspectRatio=1, in order to get the AspectRatio of the ScreenBounds
var screenBounds = RectangleD3D.NewRectangleIncludingAllPoints(rect.Vertices.Select(x => viewProj.Transform(x)));
aspectRatio = screenBounds.SizeY / screenBounds.SizeX; // this is the aspectRatio of our image
viewProj = sceneCamera.GetViewProjectionMatrix(aspectRatio); // now we get the transform with our aspectRatio determined above
screenBounds = RectangleD3D.NewRectangleIncludingAllPoints(rect.Vertices.Select(x => viewProj.Transform(x))); // this are our actual screenBounds, of course in relative screen coordinates, thus the ratio of sizeX and sizeY should now be 1
double scaleFactor = 2 / screenBounds.SizeX; // since SizeX and SizeY should now be the same, we could have used SizeY alternatively
double offsX = -(1 + scaleFactor * screenBounds.X);
double offsY = -(1 + scaleFactor * screenBounds.Y);
pixelsY = (int)(4 * Math.Ceiling((aspectRatio * pixelsX + 3) / 4.0)); // now calculate the size of the image in y direction from the aspectRatio
var perspCamera = (PerspectiveCamera)sceneCamera;
sceneCamera = perspCamera.WithWidthAtZNear(perspCamera.WidthAtZNear / scaleFactor);
sceneCamera = sceneCamera.WithScreenOffset(new PointD2D(offsX, offsY));
}
else
{
throw new NotImplementedException();
}
scene.SetCamera(sceneCamera);
scene.SetLighting(doc.Lighting);
scene.SetDrawing(g);
exporter.Export(pixelsX, pixelsY, scene, options, toStream);
}
/// <summary>
/// Creates a new rectangle that includes all the provided points.
/// </summary>
/// <param name="points">The points that the rectangle should include.</param>
/// <returns>The rectangle that includes all the provided points.</returns>
/// <exception cref="System.ArgumentException">Enumeration is empty!</exception>
public static RectangleD3D NewRectangleIncludingAllPoints(IEnumerable<PointD3D> points)
{
var en = points.GetEnumerator();
if (!en.MoveNext())
throw new ArgumentException("Enumeration is empty!", nameof(points));
var result = new RectangleD3D(en.Current, VectorD3D.Empty);
while (en.MoveNext())
{
result.ExpandToInclude(en.Current);
}
return result;
}
/// <summary>
/// Gets the hit point on that plane of the active layer rectangle, that is facing the camera.
/// </summary>
/// <param name="doc">The graph document containing the active layer.</param>
/// <param name="activeLayer">The active layer of the graph document.</param>
/// <param name="hitposition">Hit point in relative screen coordinates. The z-component is the aspect ratio of the screen (y/x).</param>
/// <param name="hitPointOnPlaneInActiveLayerCoordinates">Output: The hit point on the plane of the active layer that faces the camera. The hit point is returned in active layer coordinates.</param>
/// <param name="rotationsRadian">The rotation angles that can be used e.g. to orient text so that the text is most readable from the current camera setting. Rotation angle around x is the x-component of the returned vector, and so on.</param>
/// <exception cref="InvalidProgramException">There should always be a plane of a rectangle that can be hit!</exception>
public static void GetHitPointOnActiveLayerPlaneFacingTheCamera(GraphDocument doc, HostLayer activeLayer, PointD3D hitposition, out PointD3D hitPointOnPlaneInActiveLayerCoordinates, out VectorD3D rotationsRadian)
{
var activeLayerTransformation = activeLayer.TransformationFromRootToHere();
var camera = doc.Camera;
var hitData = new HitTestPointData(camera.GetHitRayMatrix(hitposition));
hitData = hitData.NewFromAdditionalTransformation(activeLayerTransformation); // now hitdata are in layer cos
var targetToEye = hitData.WorldTransformation.Transform(camera.TargetToEyeVectorNormalized); // targetToEye in layer coordinates
var upEye = hitData.WorldTransformation.Transform(camera.UpVectorPerpendicularToEyeVectorNormalized); // camera up vector in layer coordinates
// get the face which has the best dot product between the eye vector of the camera and the plane's normal
var layerRect = new RectangleD3D(PointD3D.Empty, activeLayer.Size);
double maxval = double.MinValue;
PlaneD3D maxPlane = PlaneD3D.Empty;
foreach (var plane in layerRect.Planes)
{
double val = VectorD3D.DotProduct(plane.Normal, targetToEye);
if (val > maxval)
{
maxval = val;
maxPlane = plane;
}
}
bool isHit = hitData.IsPlaneHitByRay(maxPlane, out hitPointOnPlaneInActiveLayerCoordinates); // hitPointOnPlane is in layer coordinates too
if (!isHit)
throw new InvalidProgramException("There should always be a plane of a rectangle that can be hit!");
VectorD3D zaxis = maxPlane.Normal;
VectorD3D yaxis = upEye;
// Find y axis perpendicular to zaxis
maxval = double.MinValue;
foreach (var plane in layerRect.Planes)
{
double val = VectorD3D.DotProduct(plane.Normal, upEye);
if (val > maxval && 0 == VectorD3D.DotProduct(plane.Normal, zaxis))
{
maxval = val;
yaxis = plane.Normal;
}
}
var xaxis = VectorD3D.CrossProduct(yaxis, zaxis);
// now we have all information about the spatial position and orientation of the text:
// hitPointOnPlane is the position of the text
// maxPlane.Normal is the face orientation of the text
// maxUpVector is the up orientation of the text
double cx, sx, cy, sy, cz, sz;
sy = xaxis.Z;
if (1 != Math.Abs(sy))
{
cy = Math.Sqrt(1 - sy * sy);
cz = xaxis.X / cy;
sz = xaxis.Y / cy;
sx = yaxis.Z / cy;
cx = zaxis.Z / cy;
}
else // sy is +1, thus cy is zero
{
// we set x-rotation to zero, i.e. cx==1 and sx==0
cy = 0;
cx = 1;
sx = 0;
cz = yaxis.Y;
sz = -yaxis.X;
}
rotationsRadian = new VectorD3D(Math.Atan2(sx, cx), Math.Atan2(sy, cy), Math.Atan2(sz, cz));
}
/// <summary>
/// Returns a rectangle that is based on the current rectangle, but was expanded to include all vertex points of the provided rectangle <paramref name="r"/>.
/// </summary>
/// <param name="r">The rectangle, whose vertices have to be included.</param>
/// <returns>A rectangle that is based on the current rectangle, but was expanded to include all vertex points of the provided rectangle <paramref name="r"/>.</returns>
public RectangleD3D WithRectangleIncluded(RectangleD3D r)
{
return WithPointsIncluded(r.Vertices);
}
public RectangleTransformedD3D(RectangleD3D rectangle, Matrix4x3 transformation)
{
_rectangle = rectangle;
_transformation = transformation;
}
/// <summary>
/// Determines whether the specified 3D-rectangle r is hit by a ray given by x=0, y=0, z>0.
/// </summary>
/// <param name="r">The rectangle r.</param>
/// <param name="z">If there was a hit, this is the z coordinate of the hit.</param>
/// <returns>True if the rectangle is hit by a ray given by x=0, y=0, z>0.</returns>
public bool IsHit(RectangleD3D r, out double z)
{
return IsRectangleHitByRay(r, _hitTransformation, out z);
}
/// <summary>
/// Returns a rectangle that is based on the current rectangle, but was expanded to include all vertex points of the provided rectangle <paramref name="r"/>.
/// </summary>
/// <param name="r">The rectangle, whose vertices have to be included.</param>
/// <returns>A rectangle that is based on the current rectangle, but was expanded to include all vertex points of the provided rectangle <paramref name="r"/>.</returns>
public RectangleD3D WithRectangleIncluded(RectangleD3D r)
{
return(WithPointsIncluded(r.Vertices));
}
/// <summary>
/// Determines whether the specified 3D-rectangle r is hit by a ray given by x=0, y=0, z>0.
/// </summary>
/// <param name="r">The rectangle r.</param>
/// <param name="rectangleToWorldTransformation">An additional transformation that transformes the given rectangle into the same coordinates as the hit data.</param>
/// <param name="z">If there was a hit, this is the z coordinate of the hit.</param>
/// <returns>True if the rectangle is hit by a ray given by x=0, y=0, z>0.</returns>
public bool IsHit(RectangleD3D r, Matrix4x3 rectangleToWorldTransformation, out double z)
{
return IsRectangleHitByRay(r, _hitTransformation.WithPrependedTransformation(rectangleToWorldTransformation), out z);
}
/// <summary>
/// Gets the absolute enclosing rectangle, taking into account ScaleX, ScaleY, Rotation and Shear (SSRS).
/// </summary>
/// <returns>The enclosing rectangle in absolute values.</returns>
public RectangleD3D GetAbsoluteEnclosingRectangle()
{
Matrix4x3 m = Matrix4x3.NewScalingShearingRotationDegreesTranslation(
ScaleX, ScaleY, ScaleZ,
ShearX, ShearY, ShearZ,
RotationX, RotationY, RotationZ,
AbsolutePivotPositionX, AbsolutePivotPositionY, AbsolutePivotPositionZ);
m.TranslatePrepend(AbsoluteVectorPivotToLeftUpper.X, AbsoluteVectorPivotToLeftUpper.Y, AbsoluteVectorPivotToLeftUpper.Z);
var r = new RectangleD3D(PointD3D.Empty, this.AbsoluteSize);
return RectangleD3D.NewRectangleIncludingAllPoints(r.Vertices.Select(p => m.Transform(p)));
}
/// <summary>
/// Determines whether the specified 3D-rectangle r is hit by a ray given by the provided transformation matrix that would transform
/// the hit ray in a ray at x=0, y=0, and z=-Infinity .. +Infinity.
/// </summary>
/// <param name="r">The rectangle r.</param>
/// <param name="rayTransformation">The hit ray transformation.</param>
/// <param name="z">If there was a hit, this is the z coordinate of the hit (otherwise, NaN is returned).</param>
/// <returns>True if the rectangle is hit by a ray given by the provided hit ray matrix.</returns>
public static bool IsRectangleHitByRay(RectangleD3D r, Matrix4x4 rayTransformation, out double z)
{
PointD3D[] vertices = new PointD3D[8];
int i = 0;
foreach (var v in r.Vertices)
vertices[i++] = rayTransformation.Transform(v);
foreach (var ti in r.TriangleIndices)
{
if (HitTestWithAlreadyTransformedPoints(vertices[ti.Item1], vertices[ti.Item2], vertices[ti.Item3], out z) && z >= 0)
return true;
}
z = double.NaN;
return false;
}
public override IGripManipulationHandle[] GetGrips(int gripLevel)
{
if (gripLevel <= 1)
{
LineShape ls = (LineShape)_hitobject;
PointD3D[] pts = new PointD3D[] { PointD3D.Empty, (PointD3D)ls.Size };
for (int i = 0; i < pts.Length; i++)
{
var pt = ls._transformation.Transform(pts[i]);
pt = this.Transformation.Transform(pt);
pts[i] = pt;
}
IGripManipulationHandle[] grips = new IGripManipulationHandle[gripLevel == 0 ? 1 : 3];
// Translation grips
var bounds = ls.Bounds;
var wn = PolylineMath3D.GetWestNorthVectors(bounds.Size);
var transformation = Matrix4x3.NewFromBasisVectorsAndLocation(wn.Item1, wn.Item2, bounds.Size.Normalized, PointD3D.Empty);
transformation.AppendTransform(ls._transformation);
transformation.AppendTransform(this.Transformation);
double t1 = 0.55 * ls._linePen.Thickness1;
double t2 = 0.55 * ls._linePen.Thickness2;
var rect = new RectangleD3D(-t1, -t2, 0, 2 * t1, 2 * t2, bounds.Size.Length);
var objectOutline = new RectangularObjectOutline(rect, transformation);
grips[0] = new MovementGripHandle(this, objectOutline, null);
// PathNode grips
if (gripLevel == 1)
{
grips[2] = grips[0]; // put the movement grip to the background, the two NodeGrips need more priority
var gripRadius = Math.Max(t1, t2);
grips[0] = new PathNodeGripHandle(this, new VectorD3D(0, 0, 0), pts[0], gripRadius);
grips[1] = new PathNodeGripHandle(this, new VectorD3D(1, 1, 1), pts[1], gripRadius);
}
return grips;
}
else
{
return base.GetGrips(gripLevel);
}
}
/// <summary>Draws the grip in the graphics context.</summary>
/// <param name="g">Graphics context.</param>
public void Show(IOverlayContext3D g)
{
var buf = g.PositionColorLineListBuffer;
var vec = new VectorD3D(_gripRadius, _gripRadius, _gripRadius);
var rect = new RectangleD3D(_gripCenter - vec, 2 * vec);
foreach (var line in rect.Edges)
buf.AddLine(line.P0.X, line.P0.Y, line.P0.Z, line.P1.X, line.P1.Y, line.P1.Z, 1, 0, 0, 1);
}
public RectangleTransformedD3D(RectangleD3D rectangle, Matrix4x3 transformation)
{
_rectangle = rectangle;
_transformation = transformation;
}
/// <summary>
/// Measures the background size and position.
/// </summary>
/// <param name="itemRectangle">Position and size of the item for which this background is intended. For text, this is the position and size of the text rectangle, already with a margin around.</param>
/// <returns>
/// The position and size of the rectangle that fully includes the background (but not the item).
/// </returns>
public RectangleD3D Measure(RectangleD3D itemRectangle)
{
_resultingDistance = _customDistance.HasValue ? _customDistance.Value : itemRectangle.SizeZ / 2;
_resultingThickness = _customThickness.HasValue ? _customThickness.Value : itemRectangle.SizeZ;
return GetRectangleToDraw(itemRectangle);
}
