'判断点在区域内函数 Ai18]QD-
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 =osw3"ng
Dim aob, boc, cod, doa, sum As Single {1|7N
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If ppx = p1x And ppy = p1y Then T(^8ki
point_in = True 5Suc#0y
Exit Function (t$/G3E
End If :w%bw\}
If ppx = p2x And ppy = p2y Then l0if#?4\r
point_in = True P'9io!Z-s
Exit Function 98'XSL|
End If W%K8HAP "
If ppx = p3x And ppy = p3y Then 8T
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point_in = True %W;Gf9.w
Exit Function
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End If `+c9m^
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) g8A{aHb1}
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) >[4|6k|\x
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) l>Ja[`X@
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) 4^_Au^8R(
sum = aob + boc + cod + doa eh4"_t
If 360.01 > sum And sum > 359.99 Then WV"QY/e3
point_in = True VQMd[/
Else .BDRD~kB
point_in = False <|Eby!KXR
End If k+GnF00N^8
End Function