'判断点在区域内函数 ]IX6>p,
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 k jCXP
Dim aob, boc, cod, doa, sum As Single |>w>}w`~
If ppx = p1x And ppy = p1y Then hN0Y8Ia/5%
point_in = True c?@WNv
Exit Function ;Y/{q B!
End If syuW>Z8s
If ppx = p2x And ppy = p2y Then Xz/5 Wis4
point_in = True P''5A6#5
Exit Function OnD!*jy
End If $e(]L(o;
If ppx = p3x And ppy = p3y Then <d2?A}<
point_in = True %BdQ.\4DS
Exit Function m
2tw[6M
End If aQ@9(j>
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"J d!TLt\x
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) E
cS+/
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) /g|H?F0
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) #Az#dt]H
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) >[,ywRJ#_}
sum = aob + boc + cod + doa
%[1\d)
If 360.01 > sum And sum > 359.99 Then XUI9)Ne
point_in = True N)F&c!anh
Else pKSn
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point_in = False ;3 N0)
End If 4r'QP .h
End Function
