'判断点在区域内函数 {ktwX\z
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 Z{
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Dim aob, boc, cod, doa, sum As Single aS>cXJ;=
If ppx = p1x And ppy = p1y Then >bmdu \j5R
point_in = True i;qij[W. z
Exit Function 1x##b [LC
End If KT(v'KE 1
If ppx = p2x And ppy = p2y Then dqgr98
point_in = True b
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Exit Function c% wztP;L
End If LV$Ko_9eA
If ppx = p3x And ppy = p3y Then XN \rq=
point_in = True rkdA4'66w
Exit Function I;?PDhDb
End If =l]
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) Fwvc+ a
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) >@a7Zzl0H
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y)
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doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) Wi\k&V.mE
sum = aob + boc + cod + doa \ j.l1O
If 360.01 > sum And sum > 359.99 Then >lJTS t5{
point_in = True K0I.3| 6C
Else &VCg`r-{~
point_in = False +l]> (k.2
End If @a =jSB#B
End Function
