'判断点在区域内函数 #?Z>o16,u
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 }0Qex=vkO
Dim aob, boc, cod, doa, sum As Single 9""e*-;Mi
If ppx = p1x And ppy = p1y Then 0m^(|=N-
point_in = True ~e5hfZv|w
Exit Function [kIiKLX
End If Gvk)H$ni
If ppx = p2x And ppy = p2y Then 1o. O]>
point_in = True Fcc\hV;
Exit Function lU0'5!3R,
End If i"~J -{d}
If ppx = p3x And ppy = p3y Then |gW>D=rkj
point_in = True 0wCJNXm
Exit Function WKib$(%f6
End If /d*0+m8
)
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) gwj+~vSfi
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) eot]VO:
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) _H9.AI
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) v"VpE`z1#
sum = aob + boc + cod + doa ~.?,*q7
If 360.01 > sum And sum > 359.99 Then [eebIJs
point_in = True Z6eM~$Y
Else fD<9k
point_in = False ?8AchbK;N
End If u:Fa1 !4JR
End Function