图像相交

Question

我如何知道我的两张图像何时交叉？

Answer 1

如果我找对你

function IsIntersertButNotContained(const R1, R2: TRect): Boolean;
var
  R: TRect;

begin
// R1 and R2 intersect
  Result:= IntersectRect(R, R1, R2)
//   R1 is not contained within R2
    and not EqualRect(R, R1)
//   R2 is not contained within R1
    and not EqualRect(R, R2);
end;