'判断点在区域内函数 910Ym!\{:
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 T^h;T{H2
Dim aob, boc, cod, doa, sum As Single O@[c*3]e
If ppx = p1x And ppy = p1y Then :A35?9E?
point_in = True [.DSY[!8U
Exit Function `6V-a_8;[
End If uG2(NwOL
If ppx = p2x And ppy = p2y Then v)@EK6Nty
point_in = True 4,L(
Exit Function ~S}>|q$
End If <1[W Nj2[
If ppx = p3x And ppy = p3y Then q;3,}emg
point_in = True Gv[W)+3f
Exit Function :+ksmyW
End If 4?XX_=+F|
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) dw,Nlf~*0
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) pq[RH-{
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) p
D!IB`cA4
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) %C=^
h1t%
sum = aob + boc + cod + doa K7}EL|Kx
If 360.01 > sum And sum > 359.99 Then KNU/Kc#
point_in = True 24{!j[,q@
Else V-a/%_D
point_in = False .{D[!Dp#h
End If ?&Si P-G
End Function