private void HideModelRotator()
{
if (_modelRotator != null)
{
OverlayViewport.Children.Remove(_modelRotator);
_modelRotator = null;
}
RotateButton.IsChecked = false;
}
private void EnsureModelRotator()
{
if (_modelRotator != null)
{
return;
}
_modelRotator = new ModelRotatorVisual3D();
// Setup events on ModelRotatorVisual3D
_modelRotator.ModelRotateStarted += delegate(object sender, ModelRotatedEventArgs args)
{
if (_selectedVisual3D == null || _standardTransform3D == null)
{
return;
}
_startRotateX = _standardTransform3D.RotateX;
_startRotateY = _standardTransform3D.RotateY;
_startRotateZ = _standardTransform3D.RotateZ;
};
_modelRotator.ModelRotated += delegate(object sender, ModelRotatedEventArgs args)
{
if (_selectedVisual3D == null || _standardTransform3D == null)
{
return;
}
if (args.RotationAxis == ModelRotatorVisual3D.XRotationAxis)
{
_standardTransform3D.RotateX = _startRotateX + args.RotationAngle;
}
else if (args.RotationAxis == ModelRotatorVisual3D.YRotationAxis)
{
_standardTransform3D.RotateY = _startRotateY + args.RotationAngle;
}
else if (args.RotationAxis == ModelRotatorVisual3D.ZRotationAxis)
{
_standardTransform3D.RotateZ = _startRotateZ + args.RotationAngle;
}
};
_modelRotator.ModelRotateEnded += delegate(object sender, ModelRotatedEventArgs args)
{
// Nothing to do here in this sample
// The event handler is here only for description purposes
};
}
private void SetupModelRotator()
{
_modelRotator = new ModelRotatorVisual3D();
var selectedModelBounds = RootModelVisual3D.Content.Bounds;
// Calculate axis length from model size
double circleWidth = Math.Max(selectedModelBounds.Size.X, Math.Max(selectedModelBounds.Size.Y, selectedModelBounds.Size.Z));
_modelRotator.InnerRadius = circleWidth * 0.6;
_modelRotator.OuterRadius = _modelRotator.InnerRadius + 10;
// Setup events on ModelRotatorVisual3D
_modelRotator.ModelRotateStarted += delegate(object sender, ModelRotatedEventArgs args)
{
_selectedAxisAngleRotation3D = null;
if (args.RotationAxis == Ab3d.Common.Constants.XAxis)
{
_selectedAxisAngleRotation3D = _xAxisAngleRotation3D;
}
else if (args.RotationAxis == Ab3d.Common.Constants.YAxis)
{
_selectedAxisAngleRotation3D = _yAxisAngleRotation3D;
}
else if (args.RotationAxis == Ab3d.Common.Constants.ZAxis)
{
_selectedAxisAngleRotation3D = _zAxisAngleRotation3D;
}
if ((IsCumulativeRotationCheckBox.IsChecked ?? false) && _selectedAxisAngleRotation3D != null)
{
_selectedAxisAngleRotation3D = new AxisAngleRotation3D(_selectedAxisAngleRotation3D.Axis, 0);
var rotateTransform3D = new RotateTransform3D(_selectedAxisAngleRotation3D);
// Insert before TranslateTransform3D
_transform3DGroup.Children.Insert(_transform3DGroup.Children.Count - 2, rotateTransform3D);
_startRotationAngle = 0;
}
else
{
if (_selectedAxisAngleRotation3D != null)
{
_startRotationAngle = _selectedAxisAngleRotation3D.Angle;
}
}
};
_modelRotator.ModelRotated += delegate(object sender, ModelRotatedEventArgs args)
{
if (_selectedAxisAngleRotation3D == null)
{
return;
}
_selectedAxisAngleRotation3D.Angle = _startRotationAngle + args.RotationAngle;
};
_modelRotator.ModelRotateEnded += delegate(object sender, ModelRotatedEventArgs args)
{
_selectedAxisAngleRotation3D = null;
};
OverlayViewport.Children.Add(_modelRotator);
}