private void Viewport_MouseDown(object sender, MouseButtonEventArgs e)
{
if (e.ChangedButton == MouseButton.Middle && e.ButtonState == MouseButtonState.Pressed)
{
Viewport.CaptureMouse();
start = e.GetPosition(this);
startAngleX = XRotation.Angle;
startAngleY = YRotation.Angle;
}
}
private void Viewport_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
// capture the mouse to keep grabing MouseMove events if the user drags the
// mouse outside of the _viewport bounds
if (!Viewport.IsMouseCaptured)
{
Viewport.CaptureMouse();
}
// update the target position
var viewportPos = e.GetPosition(Viewport);
TargetPosX = ViewportToLogicalX(viewportPos.X);
TargetPosY = ViewportToLogicalY(viewportPos.Y);
}
private void Viewport_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
Viewport.CaptureMouse();
start = e.GetPosition(this);
diffOffset.X = Translation.OffsetX;
diffOffset.Y = Translation.OffsetY;
Point mouseposition = e.GetPosition(Viewport);
Point3D testpoint3D = new Point3D(mouseposition.X, mouseposition.Y, 0);
Vector3D testdirection = new Vector3D(mouseposition.X, mouseposition.Y, 10);
PointHitTestParameters pointparams =
new PointHitTestParameters(mouseposition);
RayHitTestParameters rayparams =
new RayHitTestParameters(testpoint3D, testdirection);
hitGeo = null;
VisualTreeHelper.HitTest(Viewport, null, HTResult, pointparams);
}
