'判断点在区域内函数 n|H8O3 @
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 cY!Pv
Dim aob, boc, cod, doa, sum As Single EFtn !T
If ppx = p1x And ppy = p1y Then mmjWLrhlu
point_in = True *7*cWO=
Exit Function X<Xiva85
End If 2H8\ P+
If ppx = p2x And ppy = p2y Then } @3q;u )
point_in = True G,WLca[
Exit Function *@@dO_%6
End If `N}V i6FG
If ppx = p3x And ppy = p3y Then H^o_B1
point_in = True vY4}vHH2
Exit Function LrdED[Z
End If ]T5\LNyN
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) v`Y{.>[ H[
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) :>ca).cjac
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) A[fTpS ~~%
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) nRX'J5Q
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sum = aob + boc + cod + doa 4;32 f`
If 360.01 > sum And sum > 359.99 Then WCqa[=v)t
point_in = True 7;.Iat9gMf
Else !w/fw Oo
point_in = False M| @@
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End If I%Z=O=
End Function
