'判断点在区域内函数 &<C&(g{Z
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 u#Uc6? E
Dim aob, boc, cod, doa, sum As Single >*}m .'u
If ppx = p1x And ppy = p1y Then ur
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point_in = True 9(BB>o54r
Exit Function IZ]L.0,
End If %5 <t3 H"
If ppx = p2x And ppy = p2y Then nm<S#i*
point_in = True ^ X<ytOd5
Exit Function opCQ=G1
End If !i=k =l =
If ppx = p3x And ppy = p3y Then ||4++84{
point_in = True Zr;(a;QKs
Exit Function cp+eh
End If n\YWWW[wf
xCm`g {
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) uC1v^!D
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) e#4 iue7U
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) `Y7&}/OM
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) 1;+(HB
sum = aob + boc + cod + doa {>#4{D00
If 360.01 > sum And sum > 359.99 Then ;[-y>qU0
point_in = True B 6,X)
Else hfQ^C6yR
point_in = False O[&G6+
End If [0n&?<<
End Function
