public void TranslateSceneWithMouse(Vector mouseMovement)
{
ActiveRenderer.Scene.Camera.Move(new Vector3D(mouseMovement.X / 50, 0, -mouseMovement.Y / 50));
UpdateManipulatorInfo();
ActiveRenderer.ForceRedraw();
}
public void GrabUsingMouseRect(
Rect screenSpaceGrabRect,
bool allowMultigrab
)
{
var selectables = GetSceneSelectables();
if (selectables.Count == 0)
{
return;
}
foreach (var selectable in selectables)
{
var screenSpacePosition =
ActiveRenderer.GetStandardScreenSpacePosition(
selectable.WorldPosition
);
if (!screenSpacePosition.HasValue)
{
continue;
}
if (screenSpaceGrabRect.Contains(screenSpacePosition.Value))
{
_scene.GrabObject(selectable);
}
}
}
public void ScaleWithMouse(int delta)
{
ActiveRenderer.Scene.Camera.Zoom += delta * 0.002;
UpdateManipulatorInfo();
ActiveRenderer.ForceRedraw();
}
private void LoadScene()
{
var result = MessageBox.Show(
_ownerWindow,
"Loading a scene will clear this one. Are you sure?",
"New scene confirmation",
MessageBoxButton.YesNo,
MessageBoxImage.Question
);
if (result == MessageBoxResult.No)
{
return;
}
var ofd = new OpenFileDialog();
var fileResult = ofd.ShowDialog();
if (fileResult == false)
{
return;
}
CreateNewScene();
_scene.Import(ofd.FileName);
ActiveRenderer.ForceRedraw();
}
public void RotateSceneWithMouse(Vector mouseMovement)
{
var rotation = new Vector3D(-mouseMovement.Y / 50, -mouseMovement.X / 50, 0);
ActiveRenderer.Scene.Camera.Rotate(rotation);
UpdateManipulatorInfo();
ActiveRenderer.ForceRedraw();
}
private void UpdateManipulatorInfo()
{
var cursorScreenPos = ActiveRenderer.GetStandardScreenSpacePosition(_scene.Manipulator.Position);
var cursorViewPosInfo = cursorScreenPos.HasValue
? String.Format("Cursor screen position: ({0:0.##} ; {1:0.##})", cursorScreenPos.Value.X,
cursorScreenPos.Value.Y)
: "Cursor screen position: <Clipped>";
CursorReadableInfo = String.Format("Cursor world position: ({0:0.##} ; {1:0.##} ; {2:0.##}) {3}",
_scene.Manipulator.Position.X, _scene.Manipulator.Position.Y, _scene.Manipulator.Position.Z,
cursorViewPosInfo);
}
public void MoveManipulator(double dx, double dy, double dz)
{
var shift = new Vector3D(dx, dy, dz);
_scene.Manipulator.Translate(shift);
foreach (var obj in _scene.GrabbedObjects)
{
obj.Translate(shift);
}
UpdateManipulatorInfo();
ActiveRenderer.ForceRedraw();
}
public void GrabUsingMouse(
Point screenSpaceClick,
bool allowMultigrab,
double limit = 0.2
)
{
var selectables = GetSceneSelectables();
if (selectables.Count == 0)
{
return;
}
ISceneSelectable closestObject = null;
var closestDistance = double.MaxValue;
foreach (var selectable in selectables)
{
var screenSpacePosition = ActiveRenderer
.GetStandardScreenSpacePosition(selectable.WorldPosition);
if (!screenSpacePosition.HasValue)
{
continue;
}
var candidateLength =
(screenSpacePosition.Value - screenSpaceClick).Length;
if (candidateLength >= closestDistance)
{
continue;
}
closestObject = selectable;
closestDistance = candidateLength;
}
if (closestObject == null || closestDistance > limit)
{
return;
}
if (allowMultigrab)
{
_scene.ToggleObjectGrab(closestObject);
}
else
{
_scene.SetObjectGrab(closestObject);
}
}
private void SceneCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
ActiveRenderer.ForceRedraw();
}
private void SceneChanged(object sender, PropertyChangedEventArgs e)
{
ActiveRenderer.ForceRedraw();
}
