private void SetupFlowTrackball()
{
// Major arrow along x
ModelVisual3D visual = new ModelVisual3D();
visual.Content = TrackballGrabber.GetMajorArrow(Axis.X, false, _colors.TrackballAxisMajor, _colors.TrackballAxisSpecular);
_viewportFlowRotate.Children.Add(visual);
_flowOrientationVisuals.Add(visual);
// Create the trackball
_flowOrientationTrackball = new TrackballGrabber(grdFlowRotateViewport, _viewportFlowRotate, 1d, _colors.TrackballGrabberHoverLight);
_flowOrientationTrackball.SyncedLights.Add(_lightFlow1);
_flowOrientationTrackball.RotationChanged += new EventHandler(FlowOrientationTrackball_RotationChanged);
// Faint lines
_flowOrientationTrackball.HoverVisuals.Add(TrackballGrabber.GetGuideLine(Axis.X, true, _colors.TrackballAxisLine));
_flowOrientationTrackball.HoverVisuals.Add(TrackballGrabber.GetGuideLineDouble(Axis.Y, _colors.TrackballAxisLine));
_flowOrientationTrackball.HoverVisuals.Add(TrackballGrabber.GetGuideLineDouble(Axis.Z, _colors.TrackballAxisLine));
}
private void SetupModelTrackball()
{
Model3DGroup model = new Model3DGroup();
// major arrow along x
model.Children.Add(TrackballGrabber.GetMajorArrow(Axis.X, true, _colors.TrackballAxisMajor, _colors.TrackballAxisSpecular));
// Minor arrow along z
model.Children.Add(TrackballGrabber.GetMinorArrow(Axis.Z, true, _colors.TrackballAxisMinor, _colors.TrackballAxisSpecular));
ModelVisual3D visual = new ModelVisual3D();
visual.Content = model;
_viewportModelRotate.Children.Add(visual);
_modelOrientationVisuals.Add(visual);
// Create the trackball
_modelOrientationTrackball = new TrackballGrabber(grdModelRotateViewport, _viewportModelRotate, 1d, _colors.TrackballGrabberHoverLight);
_modelOrientationTrackball.SyncedLights.Add(_lightModel1);
_modelOrientationTrackball.RotationChanged += new EventHandler(ModelOrientationTrackball_RotationChanged);
// Faint lines
_modelOrientationTrackball.HoverVisuals.Add(TrackballGrabber.GetGuideLine(Axis.X, false, _colors.TrackballAxisLine));
_modelOrientationTrackball.HoverVisuals.Add(TrackballGrabber.GetGuideLineDouble(Axis.Y, _colors.TrackballAxisLine));
_modelOrientationTrackball.HoverVisuals.Add(TrackballGrabber.GetGuideLine(Axis.Z, false, _colors.TrackballAxisLine));
}
private void SetupToTrackball()
{
Model3DGroup model = new Model3DGroup();
// Major arrow along x
model.Children.Add(TrackballGrabber.GetMajorArrow(Axis.X, true, _colors.TrackballAxisMajor_To, _colors.TrackballAxisSpecular));
// Minor arrow along z
model.Children.Add(TrackballGrabber.GetMinorArrow(Axis.Z, true, _colors.TrackballAxisMinor_To, _colors.TrackballAxisSpecular));
ModelVisual3D visual = new ModelVisual3D();
visual.Content = model;
_viewportTo.Children.Add(visual);
_orientationVisualsTo.Add(visual);
// Create the trackball
_orientationTrackballTo = new TrackballGrabber(grdTo, _viewportTo, 1d, _colors.TrackballGrabberHoverLight);
_orientationTrackballTo.SyncedLights.Add(_cameraToLight);
_orientationTrackballTo.RotationChanged += new EventHandler(OrientationTrackballTo_RotationChanged);
// Faint lines
_orientationTrackballTo.HoverVisuals.Add(TrackballGrabber.GetGuideLine(Axis.X, false, _colors.TrackballAxisLine_To));
_orientationTrackballTo.HoverVisuals.Add(TrackballGrabber.GetGuideLineDouble(Axis.Y, _colors.TrackballAxisLine_To));
_orientationTrackballTo.HoverVisuals.Add(TrackballGrabber.GetGuideLine(Axis.Z, false, _colors.TrackballAxisLine_To));
}
private void SetupGravityTrackball()
{
// major arrow along x
ModelVisual3D visual = new ModelVisual3D();
visual.Content = TrackballGrabber.GetMajorArrow(Axis.X, true, _colors.TrackballAxisMajor, _colors.TrackballAxisSpecular);
_viewportGravityRotate.Children.Add(visual);
_gravityOrientationVisuals.Add(visual);
// Create the trackball
_gravityOrientationTrackball = new TrackballGrabber(grdGravityRotateViewport, _viewportGravityRotate, 1d, _colors.TrackballGrabberHoverLight);
_gravityOrientationTrackball.SyncedLights.Add(_lightGravity1);
_gravityOrientationTrackball.RotationChanged += new EventHandler(GravityOrientationTrackball_RotationChanged);
// Faint lines
_gravityOrientationTrackball.HoverVisuals.Add(TrackballGrabber.GetGuideLine(Axis.X, false, _colors.TrackballAxisLine));
_gravityOrientationTrackball.HoverVisuals.Add(TrackballGrabber.GetGuideLineDouble(Axis.Y, _colors.TrackballAxisLine));
_gravityOrientationTrackball.HoverVisuals.Add(TrackballGrabber.GetGuideLineDouble(Axis.Z, _colors.TrackballAxisLine));
// The trackball's axis that is showing is X, but I want gravity to start out down
_gravityOrientationTrackball.Transform = new RotateTransform3D(new AxisAngleRotation3D(new Vector3D(0, 0, 1), -90));
}
private static void EnsureSnapped45(TrackballGrabber trackball)
{
//TODO: I think this is invalid thinking. Instead?:
// Use the quaternion to project a vector
// Snap that projected vector to the nearest aligned vector
// Get a new quaternion that describes how to rotate to that snapped vector
//TODO: When the trackball's transform is set, the lights get screwed up
Quaternion currentOrientation = trackball.Transform.ToQuaternion();
// Snap the axis to nearest 45
Vector3D snappedAxis = currentOrientation.Axis;
// Snap the angle to nearest 45
double snappedAngle = GetSnappedAngle(currentOrientation.Angle, 45d);
trackball.Transform = new RotateTransform3D(new AxisAngleRotation3D(snappedAxis, snappedAngle));
}