'判断点在区域内函数 y:TLGQ0
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
'g<0MOq{
Dim aob, boc, cod, doa, sum As Single obUX7N
If ppx = p1x And ppy = p1y Then B^W0Ik`m
point_in = True 9(.P2yO
Exit Function < *
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End If &|t*9D
If ppx = p2x And ppy = p2y Then -p|@En n
point_in = True l56D?E8
Exit Function 9UD~$_<\
End If -]1F]d
If ppx = p3x And ppy = p3y Then ?eUhHKS5
point_in = True ~(2G7x)
Exit Function 2jQ|4$9j
End If *,w9#?2x
/IDfGAE
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) J%ym1A9
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) k _)H$*
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) ;x.xj/7
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) HtWuZq;w
sum = aob + boc + cod + doa (h NSzG\
If 360.01 > sum And sum > 359.99 Then q4)8]Y2
point_in = True y993uP
Else a~b^`ykcWP
point_in = False 6 /T_+K.k
End If ocwh*t)<k
End Function