'判断点在区域内函数 L~0B
Function point_in(p1x As Single, p1y As Single, p2x As Single, p2y As Single, p3x As Single, p3y As Single, p4x As Single, p4y As Single, ppx As Single, ppy As Single) As Boolean Fh?q;oEj
Dim aob, boc, cod, doa, sum As Single
Ng-3|N
If ppx = p1x And ppy = p1y Then Z#Zk)
point_in = True ml3]CcKn
Exit Function O^IpfS\/
End If @|cas|U.r
If ppx = p2x And ppy = p2y Then =nY*,Xu<
point_in = True s+(8KYTs`
Exit Function -bs~{
End If U,+=>ns>
If ppx = p3x And ppy = p3y Then \?GMtM,
point_in = True oR5`-
Exit Function UCq+F96j
End If RQh4RUm
QiZThAe
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) gx9H=c>/
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) lJK U^?4S8
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) gGZ$}vX
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) nNL9B~d
sum = aob + boc + cod + doa &1VC0"YJWy
If 360.01 > sum And sum > 359.99 Then jmAWto}.
point_in = True D&]SPhX
Else M/#<=XhA
point_in = False gN(8T_r
End If #|gt(p]C
End Function