// moving camera
private void Window_MouseMove(object sender, MouseEventArgs e)
{
if (SelectedTab != null && e.LeftButton == MouseButtonState.Pressed)
{
if (SelectedViewport3D.IsDescendantOf(this))
{
Point currentMousePosition = e.GetPosition(SelectedViewport3D);
if (currentMousePosition.X > 0 &&
currentMousePosition.Y > 0 &&
currentMousePosition.X < SelectedViewport3D.ActualWidth &&
currentMousePosition.Y < SelectedViewport3D.ActualHeight &&
!SelectedRadiusSlider.IsMouseCaptureWithin && !SelectedAngleSlider.IsMouseCaptureWithin)
{
PerspectiveCamera camera = SelectedViewport3D.Camera as PerspectiveCamera;
Vector delta = currentMousePosition - MouseInitialPosition;
if (delta.Length < 50)
{
camera.RotateWithMouse(delta);
}
}
MouseInitialPosition = currentMousePosition;
}
}
}
