private static double GetRadius_Ball(Vector3D scale, DraggingModifier whichBall)
{
const double MINSIZE = 1.2d;
double largestScale;
switch (whichBall)
{
case DraggingModifier.BallX1:
case DraggingModifier.BallX2:
//largestScale = Math.Max(scale.Y, scale.Z);
largestScale = scale.X;
break;
case DraggingModifier.BallY1:
case DraggingModifier.BallY2:
//largestScale = Math.Max(scale.X, scale.Z);
largestScale = scale.Y;
break;
case DraggingModifier.BallZ1:
case DraggingModifier.BallZ2:
//largestScale = Math.Max(scale.X, scale.Y);
largestScale = scale.Z;
break;
default:
throw new ApplicationException("Unexpected DraggingModifier: " + whichBall.ToString());
}
double retVal = (Math.Sqrt(2d) * largestScale * .5d) + MINSIZE;
if (retVal < MINSIZE)
{
retVal = MINSIZE;
}
return retVal;
}
private static double GetRadius_Ring(Vector3D scale, DraggingModifier whichRing)
{
const double MINSIZE = .8d;
double largestScale;
switch (whichRing)
{
case DraggingModifier.RingX:
largestScale = Math.Max(scale.Y, scale.Z);
break;
case DraggingModifier.RingY:
largestScale = Math.Max(scale.X, scale.Z);
break;
case DraggingModifier.RingZ:
largestScale = Math.Max(scale.X, scale.Y);
break;
default:
throw new ApplicationException("Unexpected DraggingModifier: " + whichRing.ToString());
}
double retVal = (Math.Sqrt(2d) * largestScale * .5d) + MINSIZE;
if (retVal < MINSIZE)
{
retVal = MINSIZE;
}
return retVal;
}
private void GetNewBalls(out DraggableModifierSphere ball1, out DraggableModifierSphere ball2, DraggingModifier whichBall)
{
double radius = GetRadius_Ball(this.Scale, whichBall);
switch (whichBall)
{
case DraggingModifier.BallX1:
case DraggingModifier.BallX2:
ball1 = new DraggableModifierSphere(new Vector3D(radius, 0, 0), _options.EditorColors);
ball2 = new DraggableModifierSphere(new Vector3D(-radius, 0, 0), _options.EditorColors);
break;
case DraggingModifier.BallY1:
case DraggingModifier.BallY2:
ball1 = new DraggableModifierSphere(new Vector3D(0, radius, 0), _options.EditorColors);
ball2 = new DraggableModifierSphere(new Vector3D(0, -radius, 0), _options.EditorColors);
break;
case DraggingModifier.BallZ1:
case DraggingModifier.BallZ2:
ball1 = new DraggableModifierSphere(new Vector3D(0, 0, radius), _options.EditorColors);
ball2 = new DraggableModifierSphere(new Vector3D(0, 0, -radius), _options.EditorColors);
break;
default:
throw new ApplicationException("Unexpected DraggingModifier: " + whichBall.ToString());
}
_viewport.Children.Add(ball1.Model);
_viewport.Children.Add(ball2.Model);
}
private DraggableModifierRing GetNewRing(DraggingModifier whichRing)
{
DraggableModifierRing retVal;
double radius = GetRadius_Ring(this.Scale, whichRing);
switch (whichRing)
{
case DraggingModifier.RingX:
retVal = new DraggableModifierRing(new Quaternion(new Vector3D(0, 1, 0), 90), radius, _options.EditorColors);
break;
case DraggingModifier.RingY:
retVal = new DraggableModifierRing(new Quaternion(new Vector3D(1, 0, 0), 90), radius, _options.EditorColors);
break;
case DraggingModifier.RingZ:
retVal = new DraggableModifierRing(new Quaternion(new Vector3D(0, 0, 1), 0), radius, _options.EditorColors);
break;
default:
throw new ApplicationException("Unexpected DraggingModifier: " + whichRing.ToString());
}
_viewport.Children.Add(retVal.Model);
return retVal;
}
private void GetNewArrows(out DraggableModifierArrow arrow1, out DraggableModifierArrow arrow2, DraggingModifier whichArrow)
{
switch (whichArrow)
{
case DraggingModifier.ArrowX1:
case DraggingModifier.ArrowX2:
arrow1 = new DraggableModifierArrow(new Quaternion(new Vector3D(0, 1, 0), 90), _options.EditorColors);
arrow2 = new DraggableModifierArrow(new Quaternion(new Vector3D(0, 1, 0), -90), _options.EditorColors);
break;
case DraggingModifier.ArrowY1:
case DraggingModifier.ArrowY2:
arrow1 = new DraggableModifierArrow(new Quaternion(new Vector3D(1, 0, 0), -90), _options.EditorColors);
arrow2 = new DraggableModifierArrow(new Quaternion(new Vector3D(1, 0, 0), 90), _options.EditorColors);
break;
case DraggingModifier.ArrowZ1:
case DraggingModifier.ArrowZ2:
arrow1 = new DraggableModifierArrow(new Quaternion(new Vector3D(1, 0, 0), 0), _options.EditorColors);
arrow2 = new DraggableModifierArrow(new Quaternion(new Vector3D(1, 0, 0), 180), _options.EditorColors);
break;
default:
throw new ApplicationException("Unexpected DraggingModifier: " + whichArrow.ToString());
}
_viewport.Children.Add(arrow1.Model);
_viewport.Children.Add(arrow2.Model);
}
private RayHitTestParameters GetArrowRay(DraggingModifier whichArrow)
{
Vector3D origin = new Vector3D();
Vector3D direction = new Vector3D();
Vector3D position = this.Position.ToVector();
Vector3D scale = this.Scale;
RotateTransform3D rotateTransform = new RotateTransform3D(new QuaternionRotation3D(this.Orientation));
switch (whichArrow)
{
case DraggingModifier.ArrowX1:
origin = position + rotateTransform.Transform(new Vector3D(GetDistance_Arrow(scale.X), 0, 0));
direction = rotateTransform.Transform(new Vector3D(1, 0, 0));
break;
case DraggingModifier.ArrowX2:
origin = position - rotateTransform.Transform(new Vector3D(GetDistance_Arrow(scale.X), 0, 0));
direction = rotateTransform.Transform(new Vector3D(-1, 0, 0));
break;
case DraggingModifier.ArrowY1:
origin = position + rotateTransform.Transform(new Vector3D(0, GetDistance_Arrow(scale.Y), 0));
direction = rotateTransform.Transform(new Vector3D(0, 1, 0));
break;
case DraggingModifier.ArrowY2:
origin = position - rotateTransform.Transform(new Vector3D(0, GetDistance_Arrow(scale.Y), 0));
direction = rotateTransform.Transform(new Vector3D(0, -1, 0));
break;
case DraggingModifier.ArrowZ1:
origin = position + rotateTransform.Transform(new Vector3D(0, 0, GetDistance_Arrow(scale.Z)));
direction = rotateTransform.Transform(new Vector3D(0, 0, 1));
break;
case DraggingModifier.ArrowZ2:
origin = position - rotateTransform.Transform(new Vector3D(0, 0, GetDistance_Arrow(scale.Z)));
direction = rotateTransform.Transform(new Vector3D(0, 0, -1));
break;
default:
throw new ApplicationException("Unexpected DraggingModifier: " + whichArrow.ToString());
}
// Exit Function
return new RayHitTestParameters(origin.ToPoint(), direction);
}
