'判断点在区域内函数 fui4@
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 i<B:
Dim aob, boc, cod, doa, sum As Single V"w`!
If ppx = p1x And ppy = p1y Then $&ex\_W
point_in = True IOSuaLH^
Exit Function LvSP #$f
End If aQl?d<|+lk
If ppx = p2x And ppy = p2y Then (45NZBs
point_in = True b*btkaVue
Exit Function +vSCR(n
End If 5%2ef{T[
If ppx = p3x And ppy = p3y Then HXD*zv@ *6
point_in = True t-.2+6"\
Exit Function R4&|t
End If Qw3a"k-
V}vl2o
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) d9`3EP)n
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) 3~cS}N T
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) [$hptQv
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) ,:0Q1~8
sum = aob + boc + cod + doa u@GRN`yn
If 360.01 > sum And sum > 359.99 Then p2pTs&}S
point_in = True A8_\2'b
Else NmH}"ndv+
point_in = False ZcUh[5:|
End If c%q}"Y0oh
End Function