'判断点在区域内函数 u8 -)LOf(
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 Ww)qBsi8
Dim aob, boc, cod, doa, sum As Single 2{@:
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If ppx = p1x And ppy = p1y Then - DL/Hk_r
point_in = True {_ewc/~
Exit Function @36^4E>h
End If %"+FN2nbm
If ppx = p2x And ppy = p2y Then s)xfTr_$
point_in = True 63-`3R?;
Exit Function {7B$%G '
End If ]O&TU X@)
If ppx = p3x And ppy = p3y Then =2->1<!x6<
point_in = True B\Rq0N]' M
Exit Function T5W r;a
End If /$I&D}uR`
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) -D{~7&
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) B3XVhUP
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) e J2[=L'
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) M*aE) D '
sum = aob + boc + cod + doa <NT /+>:2
If 360.01 > sum And sum > 359.99 Then < ~x5{p
point_in = True (VwS 9:`
Else . eq-i>
point_in = False *R1x^t+)
End If r")=Z1y
End Function
