'判断点在区域内函数 3 k py3z[%
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 %| }obiV)
Dim aob, boc, cod, doa, sum As Single ;t{Ew+s
If ppx = p1x And ppy = p1y Then ^6bU4bA
point_in = True Q"n*`#Yt'
Exit Function Jp= eh
End If m{
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If ppx = p2x And ppy = p2y Then -@X?~4Idz
point_in = True ,
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Exit Function Q3vC^}Dmr
End If <[ />M
If ppx = p3x And ppy = p3y Then +!6aB |-
point_in = True [x
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Exit Function 0W<:3+|n4
End If S# Tc{@e
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) y Q-&+16^
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) Mo\LFxx>4{
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) ZdJwy%
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) ;,![Lar5L
sum = aob + boc + cod + doa ~CgKU 8
If 360.01 > sum And sum > 359.99 Then !qsk;Vk7Z
point_in = True D0 Yl?LU3
Else 0)`{]&
point_in = False w?)v#]<-
End If o^hI\9
End Function
