'判断点在区域内函数 /B!Ik:c}
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 q[TGEgG
Dim aob, boc, cod, doa, sum As Single d3;Sy`.
If ppx = p1x And ppy = p1y Then ;q33t%j
point_in = True e_+SBN1`P&
Exit Function jZgCDA8Mr!
End If *@eZt*_
If ppx = p2x And ppy = p2y Then VQ7A"&hh
point_in = True Yln[ZmK9g
Exit Function P,<pG[^K
End If HSj=g}r
If ppx = p3x And ppy = p3y Then P$v9
point_in = True *J3Z.fq%:i
Exit Function EkpM'j=
End If PiJ>gDx
r7+Ytr
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) 9jI5bi)
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) CHckmCgf4
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) ih=O#f|
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) 3of0f{ZTj
sum = aob + boc + cod + doa +W+o~BE
If 360.01 > sum And sum > 359.99 Then y:YJv x6&4
point_in = True ~o27~R ]
Else B-oQjr-
point_in = False G2yQHTbl
End If M*Ri1
End Function