'判断点在区域内函数 0T#z"l<L
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 NV?XZ[<*<
Dim aob, boc, cod, doa, sum As Single .d$Q5Qae
If ppx = p1x And ppy = p1y Then y;4g>ma0
point_in = True v*.iNA;&i
Exit Function .0gfP4{1{
End If 7bRfkKD
If ppx = p2x And ppy = p2y Then kTT%<
e
point_in = True u*uHdV5
Exit Function nnE'zk<"
End If LjW32>B
If ppx = p3x And ppy = p3y Then [q_62[- X
point_in = True qdKqc,R1{
Exit Function Ie=gI+2
End If x%goyXK
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) vdB2T2F
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) x>BFK@#
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) OT=1doDp
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) Rbr:Q]zGN
sum = aob + boc + cod + doa Y"KJ`Rx
If 360.01 > sum And sum > 359.99 Then ^-n^IR}J
point_in = True q
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Else w L>*WLfR
point_in = False B"#pvJN
End If ,)J>8e V
End Function
