本文整理匯總了C#中System.Point.SquareDistance方法的典型用法代碼示例。如果您正苦於以下問題：C# Point.SquareDistance方法的具體用法？C# Point.SquareDistance怎麽用？C# Point.SquareDistance使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Point的用法示例。
在下文中一共展示了Point.SquareDistance方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: CheckXYInBoxBounds
internal bool CheckXYInBoxBounds(int boxnum, Point p)
{
// Since this method is called by many other methods that take params
// from e.g. script opcodes, but do not validate the boxnum, we
// make a check here to filter out invalid boxes.
// See also bug #1599113.
if (boxnum < 0 || boxnum == InvalidBox)
return false;
var box = GetBoxCoordinates(boxnum);
// Quick check: If the x (resp. y) coordinate of the point is
// strictly smaller (bigger) than the x (y) coordinates of all
// corners of the quadrangle, then it certainly is *not* contained
// inside the quadrangle.
if (p.X < box.UpperLeft.X && p.X < box.UpperRight.X && p.X < box.LowerRight.X && p.X < box.LowerLeft.X)
return false;
if (p.X > box.UpperLeft.X && p.X > box.UpperRight.X && p.X > box.LowerRight.X && p.X > box.LowerLeft.X)
return false;
if (p.Y < box.UpperLeft.Y && p.Y < box.UpperRight.Y && p.Y < box.LowerRight.Y && p.Y < box.LowerLeft.Y)
return false;
if (p.Y > box.UpperLeft.Y && p.Y > box.UpperRight.Y && p.Y > box.LowerRight.Y && p.Y > box.LowerLeft.Y)
return false;
// Corner case: If the box is a simple line segment, we consider the
// point to be contained "in" (or rather, lying on) the line if it
// is very close to its projection to the line segment.
if ((box.UpperLeft == box.UpperRight && box.LowerRight == box.LowerLeft) ||
(box.UpperLeft == box.LowerLeft && box.UpperRight == box.LowerRight))
{
Point tmp;
tmp = ScummMath.ClosestPtOnLine(box.UpperLeft, box.LowerRight, p);
if (p.SquareDistance(tmp) <= 4)
return true;
}
// Finally, fall back to the classic algorithm to compute containment
// in a convex polygon: For each (oriented) side of the polygon
// (quadrangle in this case), compute whether p is "left" or "right"
// from it.
if (!ScummMath.CompareSlope(box.UpperLeft, box.UpperRight, p))
return false;
if (!ScummMath.CompareSlope(box.UpperRight, box.LowerRight, p))
return false;
if (!ScummMath.CompareSlope(box.LowerRight, box.LowerLeft, p))
return false;
if (!ScummMath.CompareSlope(box.LowerLeft, box.UpperLeft, p))
return false;
return true;
}示例2: GetClosestPtOnBox
public static uint GetClosestPtOnBox(BoxCoords box, Point pIn, out Point pOut)
{
Point tmp;
uint dist;
uint bestdist = 0xFFFFFF;
pOut = new Point();
tmp = ScummMath.ClosestPtOnLine(box.UpperLeft, box.UpperRight, pIn);
dist = pIn.SquareDistance(tmp);
if (dist < bestdist)
{
bestdist = dist;
pOut = tmp;
}
tmp = ScummMath.ClosestPtOnLine(box.UpperRight, box.LowerRight, pIn);
dist = pIn.SquareDistance(tmp);
if (dist < bestdist)
{
bestdist = dist;
pOut = tmp;
}
tmp = ScummMath.ClosestPtOnLine(box.LowerRight, box.LowerLeft, pIn);
dist = pIn.SquareDistance(tmp);
if (dist < bestdist)
{
bestdist = dist;
pOut = tmp;
}
tmp = ScummMath.ClosestPtOnLine(box.LowerLeft, box.UpperLeft, pIn);
dist = pIn.SquareDistance(tmp);
if (dist < bestdist)
{
bestdist = dist;
pOut = tmp;
}
return bestdist;
}