'判断点在区域内函数 wa" uFW
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 2
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Dim aob, boc, cod, doa, sum As Single &} ,*\Oj
If ppx = p1x And ppy = p1y Then 5^>n5u/
point_in = True 9SY(EL
Exit Function k_!+V`Ro#
End If tev QW
If ppx = p2x And ppy = p2y Then ^\:yf.k
point_in = True Y~az!8j;Z
Exit Function &Cq{
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End If ^;zWWg/d
If ppx = p3x And ppy = p3y Then y?>#t^
point_in = True sAVefL?
Exit Function ,>u=gA&}
End If ob'n{T+lZ
PRD_!VOW
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) +3Y!xD?=
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) +e'X;
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) !h>D;k6 e
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) 1~'_K9eE
sum = aob + boc + cod + doa %fv)7 CRM
If 360.01 > sum And sum > 359.99 Then {rC~P
point_in = True -u|l}}bh
Else %,|ztH/ Q
point_in = False !qA8Zky_
End If X2gz6|WJ
End Function