'判断点在区域内函数 Ognq*[om
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 zyQEz#O
Dim aob, boc, cod, doa, sum As Single JdNPfkOF
If ppx = p1x And ppy = p1y Then ` vmk
point_in = True #i#.tc
Exit Function KVe'2Q<
End If BE@H~<E J
If ppx = p2x And ppy = p2y Then *gMP_I
point_in = True <:}AC{I
Exit Function {_gj>n (1
End If WiCM,wDi
If ppx = p3x And ppy = p3y Then ]R.Vq\A%S
point_in = True 2o7C2)YT$
Exit Function ^*~u4app
End If o2U J*4
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) _A0avMD}
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) Mv wJ(3
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) [#h!3d|?B
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) H
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sum = aob + boc + cod + doa 42[:s:
If 360.01 > sum And sum > 359.99 Then
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point_in = True &ZFAUE,[
Else @V
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point_in = False /
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End If X #C7r@H
End Function
