'判断点在区域内函数 rlP?Uh
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 u[+/WFH
Dim aob, boc, cod, doa, sum As Single 0.!!rq,
If ppx = p1x And ppy = p1y Then a@s@E
point_in = True M) Z3q
Exit Function D{G~7 P\.
End If @; 0t+
If ppx = p2x And ppy = p2y Then VB&`g<
point_in = True o8!uvl}:9
Exit Function
7>!Rg~M
End If -E,p[Sp
If ppx = p3x And ppy = p3y Then R~! md
point_in = True b5t:" >wC
Exit Function CCp&+LRvR
End If _h0hl]rf
Rr"D)|Y;C(
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) N5jJ,iz
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) G * '1[Bu
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) #{x4s?
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) vD3j (d
sum = aob + boc + cod + doa ,l7',@6Y
If 360.01 > sum And sum > 359.99 Then u7}C):@H
point_in = True / &#b*46
Else D+( '1E ?
point_in = False +p):
End If &T2qi'
End Function
