'判断点在区域内函数 DfNX@gbo
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 fq"<=
Dim aob, boc, cod, doa, sum As Single rz@;Zn
If ppx = p1x And ppy = p1y Then 0rtP :Nj$
point_in = True ;P{HePs=)
Exit Function KF#,Q
End If c9
UJ=
If ppx = p2x And ppy = p2y Then >,Zf3M
point_in = True ^mu?V-4
Exit Function J,bE[52
End If SbLx`]rI
If ppx = p3x And ppy = p3y Then *Hnk,?kPq
point_in = True Y0||>LX
Exit Function !\0UEC
End If +H7lkbW
7;UUS1
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) -2dk8]KB]
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) CqRG !J
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) L(yR"A{FsE
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) (>E70|T
sum = aob + boc + cod + doa 0pSqk/
If 360.01 > sum And sum > 359.99 Then @GB~rfB[
point_in = True =vv4;az
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Else #sOkD
point_in = False 0koC;(<n
End If YmS}*>oz
End Function