'判断点在区域内函数 KnaQhZ
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 WV]Si2pOZ
Dim aob, boc, cod, doa, sum As Single vSb$gl5H
If ppx = p1x And ppy = p1y Then F3HpDf y
point_in = True NldeD2~H
Exit Function f R$E*Jd
End If [y7BHikX)
If ppx = p2x And ppy = p2y Then 6FFQoE|n
point_in = True suC]
Exit Function mJ2>#j; 5f
End If *yN+Xm8o
If ppx = p3x And ppy = p3y Then k|(uIU* ]
point_in = True ,B_Nz}\8
Exit Function j7IX"O%f\
End If z@R: ~
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y)
] lE6:^V
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) b) "bX}
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) ^oDC F
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) a/A$
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sum = aob + boc + cod + doa ?W:YS82
If 360.01 > sum And sum > 359.99 Then _WO*N9Iz
point_in = True Km7HB!=<
Else &ejJf{id
point_in = False JKN0:/t7 Q
End If H`odQkZ!
End Function
