本文整理汇总了C#中Ray.ClosestPoint方法的典型用法代码示例。如果您正苦于以下问题：C# Ray.ClosestPoint方法的具体用法？C# Ray.ClosestPoint怎么用？C# Ray.ClosestPoint使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Ray的用法示例。
在下文中一共展示了Ray.ClosestPoint方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: BackBufferControl_MouseMove
public void BackBufferControl_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
{
if (didCopy && (W32.Control.ModifierKeys & W32.Keys.Shift) != W32.Keys.Shift)
didCopy = false;
int lastSelection = selection;
dragging = false;
if (!enabledDragging) return;
if (e.Button != MB.Left || P.CurrNode == null)
{
selection = -1;
return;
}
Matrix m = P.CurrNode.Matrix;
Vector3 po = P.CurrNode.Position;
Quaternion q = P.CurrNode.Rotation;
if (P.CoordSystem == eECoordinateSystem.eECoordinateSystem_Independent)
{
m = Matrix.Translation(po);
q = Quaternion.Identity;
}
Vector3 d = ManagedWorld.NodeLibrary.Camera.Unproject(e.X, e.Y, ManagedSettings.FarDepth - 1, P.BackBuffer);
Ray r1 = new Ray(ManagedWorld.NodeLibrary.Camera.Position_ABS, Vector3.Normalize(d - ManagedWorld.NodeLibrary.Camera.Position_ABS));
if (selection == -1)
{
Vector3 axisx = Vector3.Transform(Vector3.UnitX * scale, q).ToVec3();
Vector3 axisy = Vector3.Transform(Vector3.UnitY * scale, q).ToVec3();
Vector3 axisz = Vector3.Transform(Vector3.UnitZ * scale, q).ToVec3();
Vector2 o = ManagedWorld.NodeLibrary.Camera.Project(Vector3.Transform(Vector3.Zero, m).ToVec3(), P.BackBuffer);
Vector2 p1 = ManagedWorld.NodeLibrary.Camera.Project(axisx + po, P.BackBuffer);
Vector2 p2 = ManagedWorld.NodeLibrary.Camera.Project(axisy + po, P.BackBuffer);
Vector2 p3 = ManagedWorld.NodeLibrary.Camera.Project(axisz + po, P.BackBuffer);
Vector2 p2_xz = ManagedWorld.NodeLibrary.Camera.Project(po + axisx * s + axisz * s, P.BackBuffer);
Vector2 p2_yz = ManagedWorld.NodeLibrary.Camera.Project(po + axisy * s + axisz * s, P.BackBuffer);
Vector2 p2_yx = ManagedWorld.NodeLibrary.Camera.Project(po + axisx * s + axisy * s, P.BackBuffer);
bool x = isNear(o, p1, e.X, e.Y);
bool y = isNear(o, p2, e.X, e.Y);
bool z = isNear(o, p3, e.X, e.Y);
bool[] bb = CheckAreas(Vector3.Transform(Vector3.Zero, m).ToVec3(), axisx, axisy, axisz, new Vector3(e.X, e.Y, 0), r1);
if (bb[0] || bb[1] || bb[2])
x = y = z = false;
int SAT = Convert.ToInt32(x) + Convert.ToInt32(y) + Convert.ToInt32(z) + Convert.ToInt32(bb[0]) + Convert.ToInt32(bb[1]) + Convert.ToInt32(bb[2]);
if(SAT == 0 || SAT > 1)
return;
if (x) selection = 0; if (y) selection = 1; if (z) selection = 2; if (bb[0]) selection = 3; if (bb[1]) selection = 4; if (bb[2]) selection = 5;
}
if (selection < 3)
{
Vector3 v = new Vector3();
if (selection == 0) v = Vector3.UnitX; if (selection == 1) v = Vector3.UnitY; if (selection == 2) v = Vector3.UnitZ;
v = Vector3.Transform(v, q).ToVec3();
Ray r2 = new Ray(po, v);
Vector3? hit = r2.ClosestPoint(r1);
float s0 = (hit.Value - P.CurrNode.Position).Length();
float fk = calcDist(P.CurrNode.Position, v);
if (!hit.HasValue || s0 > scale)
{
//selection = -1;
return;
}
if (lastSelection == -1 && s0 > fk)
{
dragging = true;
return;
}
float t = (hit.Value[selection] - r2.Position[selection]) / r2.Direction[selection];
if ((W32.Control.ModifierKeys & W32.Keys.Shift) == W32.Keys.Shift && !didCopy)
{
didCopy = true;
P.CurrNode = (ILrentObject)P.CurrNode.Clone(P.GetCopyFile(P.CurrNode.File), P.Device);
}
if (s0 < fk)
P.CurrNode.Position = hit.Value;
else P.CurrNode.Position += r2.Direction * fk * (float)Math.Sign(t);
dragging = true;
}
else
{
Vector3 n = new Vector3();
if (selection == 3) n = Vector3.UnitY; if (selection == 4) n = Vector3.UnitX; if (selection == 5) n = Vector3.UnitZ;
n = Vector3.Transform(n, q).ToVec3();
Plane p = new Plane(po, n);
float? fq = r1.Intersects(p);
if (!fq.HasValue)
return;
Vector3 hit = r1.Position + r1.Direction * fq.Value;
P.CurrNode.Position = hit;
dragging = true;
}
}