'判断点在区域内函数 wED~^[] f
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 L|S#(0
Dim aob, boc, cod, doa, sum As Single {~16j"
If ppx = p1x And ppy = p1y Then _.J{U0N
point_in = True (Z )
Exit Function eL^,-3JA(]
End If .,l ?z
If ppx = p2x And ppy = p2y Then Y1{6lhxgE
point_in = True f|?i6.N> f
Exit Function zdyS"H}
End If xex/L%!Rj
If ppx = p3x And ppy = p3y Then ^O#,%>1J
point_in = True J\_tigd
Exit Function #E5#{bra
End If q ]rsp0P2
N-3w)23*:
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) ]. 1[H~5N
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) KmEm
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) hc>hNC :a
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) p(Y'fd}
sum = aob + boc + cod + doa mY(~94{d
If 360.01 > sum And sum > 359.99 Then *`ji2+4Sjw
point_in = True [@#P3g\:>W
Else M=26@ n
point_in = False M^mS#<!y
End If R2x(8k"LPU
End Function
