'判断点在区域内函数 I%VV4,I&pK
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 9e :d2
Dim aob, boc, cod, doa, sum As Single Q
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If ppx = p1x And ppy = p1y Then T^f&58{ 7
point_in = True YA/H;707l
Exit Function DI"dY
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End If R, (+NT$
If ppx = p2x And ppy = p2y Then :">~(Rd ZH
point_in = True e2VL/>y`
Exit Function Fr E/K _L
End If l zQ&)7 `
If ppx = p3x And ppy = p3y Then ":ws~Zep
point_in = True sov62wuqU
Exit Function HjE Tinm"
End If
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) aV92.Z_Ku
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) @% 5F^Vbd
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) 7u&H*e7
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) F0o18k_"
sum = aob + boc + cod + doa YRT}fd>R&
If 360.01 > sum And sum > 359.99 Then (vYf?+Kb
point_in = True "p_[A
Else 5Dh&ez`oR'
point_in = False qkyX *_}
End If k+>p!1
End Function
