'判断点在区域内函数 RjG=RfB'V
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 ZTi KU)
Dim aob, boc, cod, doa, sum As Single :stA]JB#
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If ppx = p1x And ppy = p1y Then axiP~t2
point_in = True T |h'"3'
Exit Function [kPF J f
End If `&o>7a;
If ppx = p2x And ppy = p2y Then s!j vBy
point_in = True - f%J_`
Exit Function 3rVWehCv
End If E>x,$w<?
If ppx = p3x And ppy = p3y Then 4k=LVu]Kcr
point_in = True d?1[xv;
Exit Function sKGR28e
End If $or8z2d1
FDIOST !
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) +Uf+`
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) S1d{! ` 3
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) pq<2:F:Kl
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) 6^hCW`jG
sum = aob + boc + cod + doa Q`(.Blgm;
If 360.01 > sum And sum > 359.99 Then oD7^9=#
point_in = True t,R4q*
Else 2)+ddel<Z
point_in = False &s_)|K
End If kZH IzU
End Function