'判断点在区域内函数 UqFO|r"M
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 53;}Nt# R
Dim aob, boc, cod, doa, sum As Single xaq-.IQAM$
If ppx = p1x And ppy = p1y Then Fh?gNSWq6
point_in = True ld|5TN1
Exit Function Zw
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End If I T E{@1
If ppx = p2x And ppy = p2y Then M)J5;^["
point_in = True qOIyub
Exit Function )0. kv2o.
End If '%s.^k n
If ppx = p3x And ppy = p3y Then ="1Ind@w!
point_in = True ~RW+ GTe
Exit Function )#0O>F~
End If Go`vfm"S
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) d\&U*=
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) O40?{v'
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) :T ^a&)aL%
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) Avge eJi
sum = aob + boc + cod + doa n*R])=F@c
If 360.01 > sum And sum > 359.99 Then [SjqOTon{
point_in = True aq>kTaz
Else xeg/ A}yE
point_in = False A9KET$i@v
End If / H[=5
End Function
