'判断点在区域内函数 USfpCRj9
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 *0zdI<Oe
Dim aob, boc, cod, doa, sum As Single $;NxO0$
If ppx = p1x And ppy = p1y Then #<df!)
point_in = True Yqz(@( %
Exit Function KdU!wsKfG
End If I>ks H
If ppx = p2x And ppy = p2y Then ;;rEv5 /
point_in = True z%cq%P8g
Exit Function $"&0
End If Eukj2a
If ppx = p3x And ppy = p3y Then ol]"r5#Q_H
point_in = True 's]I:06A
Exit Function 5BKga1Q
End If *,qW9z
`Wq4k>J}*
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) 4i0~t~vDpr
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) >zcR ?PPs
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) iu!j#VO
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) !f5I.r~
sum = aob + boc + cod + doa !K a!f1
If 360.01 > sum And sum > 359.99 Then #\9sCnb
point_in = True ,b;eU[!]
Else w@&g9e6E
point_in = False 5dc24GB>_
End If :m*r(i3
End Function