'判断点在区域内函数 Z-:T')#Cf
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 |yS %
Dim aob, boc, cod, doa, sum As Single T[Lz4;TRk5
If ppx = p1x And ppy = p1y Then 'h R0JXy
point_in = True F_G .$a Cc
Exit Function (1 (~r"4I
End If Hsn'"
If ppx = p2x And ppy = p2y Then Wn2'uZ5If
point_in = True bb M^J
Exit Function sKCYGt$
End If ml@;ngmp.
If ppx = p3x And ppy = p3y Then L I*=T
point_in = True Qo32oT[DM
Exit Function D6-R>"}
End If ~[%_]/#&%z
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) F Y<Q|Ov
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) \HXq~Y
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) pT{is.RM
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) By waD?
sum = aob + boc + cod + doa EHN( K -
If 360.01 > sum And sum > 359.99 Then :_}xN!9LA
point_in = True Om^(CAp
Else Sl/]1[|mb
point_in = False )( 0if0D4
End If s_ t /
End Function
