private void UpdateModelFromMouse(Vector mousePositionDelta)
{
if (this.cameraElement == null || !(this.cameraElement is ProjectionCameraElement))
{
return;
}
if (this.mouseMovementMode == CameraOrbitToolBehavior.MovementMode.Rotate)
{
this.totalAzimuthDelta += -mousePositionDelta.X / 2.0;
this.totalElevationDelta += -mousePositionDelta.Y / 2.0;
double angle1 = this.totalAzimuthDelta;
if (this.IsShiftDown)
{
angle1 = CameraOrbitToolBehavior.shiftSnapAngle * Math.Round(angle1 / CameraOrbitToolBehavior.shiftSnapAngle);
}
RotateTransform3D rotateTransform3D1 = new RotateTransform3D(Vector3D.DotProduct((Vector3D)this.cameraElement.GetComputedValue(ProjectionCameraElement.UpDirectionProperty), this.cameraInitialUp) >= 0.0 ? (Rotation3D) new AxisAngleRotation3D(this.cameraInitialUp, angle1) : (Rotation3D) new AxisAngleRotation3D(-this.cameraInitialUp, angle1), this.cameraInitialLookAt);
Point3D point = rotateTransform3D1.Transform(this.cameraInitialPosition);
Vector3D vector3D1 = rotateTransform3D1.Transform(this.cameraInitialUp);
Vector3D axis = Vector3D.CrossProduct(this.cameraInitialLookAt - point, vector3D1);
double angle2 = this.totalElevationDelta;
if (this.IsShiftDown)
{
angle2 = CameraOrbitToolBehavior.shiftSnapAngle * Math.Round(angle2 / CameraOrbitToolBehavior.shiftSnapAngle);
}
if (axis.LengthSquared == 0.0)
{
return;
}
RotateTransform3D rotateTransform3D2 = new RotateTransform3D((Rotation3D) new AxisAngleRotation3D(axis, angle2), this.cameraInitialLookAt);
Point3D point3D1 = rotateTransform3D2.Transform(point);
Vector3D vector3D2 = rotateTransform3D2.Transform(vector3D1);
Point3D point3D2 = RoundingHelper.RoundPosition(point3D1);
Vector3D vector3D3 = RoundingHelper.RoundDirection(vector3D2);
Vector3D vector3D4 = RoundingHelper.RoundDirection(this.cameraInitialLookAt - point3D2);
this.cameraElement.SetValue(ProjectionCameraElement.PositionProperty, (object)point3D2);
this.cameraElement.SetValue(ProjectionCameraElement.UpDirectionProperty, (object)vector3D3);
this.cameraElement.SetValue(ProjectionCameraElement.LookDirectionProperty, (object)vector3D4);
}
else
{
Matrix3D matrix3D = Helper3D.CameraRotationMatrix((Camera)this.cameraElement.ViewObject.PlatformSpecificObject);
if (this.mouseMovementMode == CameraOrbitToolBehavior.MovementMode.TranslateXY)
{
Vector3D vector3D1 = new Vector3D(matrix3D.M11, matrix3D.M21, matrix3D.M31);
Vector3D vector3D2 = new Vector3D(matrix3D.M12, matrix3D.M22, matrix3D.M32);
this.cameraInitialPosition += this.scale * (-mousePositionDelta.X * vector3D1 + mousePositionDelta.Y * vector3D2);
}
else
{
Vector3D vector3D1 = new Vector3D(matrix3D.M13, matrix3D.M23, matrix3D.M33);
this.cameraInitialPosition += this.scale * mousePositionDelta.Y * vector3D1;
Vector3D vector3D2 = RoundingHelper.RoundDirection(this.cameraInitialLookAt - this.cameraInitialPosition);
this.cameraElement.SetValue(ProjectionCameraElement.LookDirectionProperty, (object)vector3D2);
}
this.cameraInitialPosition = RoundingHelper.RoundPosition(this.cameraInitialPosition);
this.cameraElement.SetValue(ProjectionCameraElement.PositionProperty, (object)this.cameraInitialPosition);
}
}
protected override void UpdateModelFromMouse(Base3DElement selected3DElement, Vector mousePositionDelta)
{
Camera camera = (Camera)selected3DElement.Viewport.Camera.ViewObject.PlatformSpecificObject;
Matrix3D matrix3D1 = Helper3D.CameraRotationMatrix(camera);
Matrix3D matrix3D2 = camera.Transform.Value;
if (matrix3D2.HasInverse)
{
matrix3D2.Invert();
matrix3D1 *= matrix3D2;
}
Vector3D vector1 = new Vector3D(matrix3D1.M11, matrix3D1.M21, matrix3D1.M31);
Vector3D vector2_1 = new Vector3D(matrix3D1.M12, matrix3D1.M22, matrix3D1.M32);
Vector3D vector2_2 = new Vector3D(matrix3D1.M13, matrix3D1.M23, matrix3D1.M33);
Base3DElement base3Delement = selected3DElement.Parent as Base3DElement;
Matrix3D matrix3D3 = Matrix3D.Identity;
if (base3Delement != null)
{
matrix3D3 = base3Delement.GetComputedTransformFromRoot3DElementToElement();
matrix3D3.Invert();
}
if (this.mouseMovementMode == ObjectRotateTranslateBehavior.MovementMode.Rotate)
{
mousePositionDelta /= 2.0;
Vector3D axisOfRotation = Vector3D.CrossProduct(new Vector3D(-mousePositionDelta.X, mousePositionDelta.Y, 0.0), vector2_2);
double length = axisOfRotation.Length;
if (length <= 0.0)
{
return;
}
Vector3D vector3D = Helper3D.EulerAnglesFromQuaternion(new Quaternion(axisOfRotation, length) * Helper3D.QuaternionFromEulerAngles(selected3DElement.CanonicalRotationAngles));
vector3D = new Vector3D(RoundingHelper.RoundAngle(vector3D.X), RoundingHelper.RoundAngle(vector3D.Y), RoundingHelper.RoundAngle(vector3D.Z));
selected3DElement.CanonicalRotationAngles = vector3D;
}
else
{
Vector3D vector3D1 = new Vector3D(selected3DElement.CanonicalTranslationX, selected3DElement.CanonicalTranslationY, selected3DElement.CanonicalTranslationZ);
Point lastMousePosition = this.LastMousePosition;
Point endPoint = lastMousePosition + mousePositionDelta;
Vector3D vector3D2;
if (this.mouseMovementMode == ObjectRotateTranslateBehavior.MovementMode.TranslateXY)
{
Plane3D plane = new Plane3D(Vector3D.CrossProduct(vector1, vector2_1), this.hitPoint);
Vector3D vector = Helper3D.VectorBetweenPointsOnPlane((Viewport3D)selected3DElement.Viewport.ViewObject.PlatformSpecificObject, plane, lastMousePosition, endPoint);
Vector3D vector3D3 = matrix3D3.Transform(vector);
vector3D2 = vector3D1 + vector3D3;
}
else
{
double scale = this.Scale;
vector3D2 = vector3D1 + scale * -mousePositionDelta.Y * vector2_2;
}
selected3DElement.CanonicalTranslationX = RoundingHelper.RoundLength(vector3D2.X);
selected3DElement.CanonicalTranslationY = RoundingHelper.RoundLength(vector3D2.Y);
selected3DElement.CanonicalTranslationZ = RoundingHelper.RoundLength(vector3D2.Z);
}
}