'判断点在区域内函数 cq0-D d9^&
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 p""\uG'
Dim aob, boc, cod, doa, sum As Single ,@kLH"a0
If ppx = p1x And ppy = p1y Then zfw =U
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point_in = True <? F- v
Exit Function H<") )EJI
End If c] -
If ppx = p2x And ppy = p2y Then !bs5w_ @
point_in = True U"RA*|
Exit Function lK_T%1Gz
End If iPdS>e e
If ppx = p3x And ppy = p3y Then iU RSYR
point_in = True S!rVq ,| d
Exit Function M`n0
q y
End If 0t[ 1#!=k
.k$Yleg
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) *zQhTYY
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) V?)YQ B
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) *j( UAVp
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) :k-@w5(
sum = aob + boc + cod + doa +/
{lz8^,
If 360.01 > sum And sum > 359.99 Then =YIosmr
point_in = True c/^l2CJ0
Else >{l
b| Vx
point_in = False HQ wrb HS
End If y|=KrvMHJ
End Function
