'判断点在区域内函数 C]3^:b+
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 "DRiJ.|APs
Dim aob, boc, cod, doa, sum As Single J ~N!. i
If ppx = p1x And ppy = p1y Then +Edq4QYwR
point_in = True _#
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Exit Function 7b R[.|T
End If )W1[{?
If ppx = p2x And ppy = p2y Then uY3?(f#
point_in = True +77j2W_0
Exit Function C
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End If +;q` A 1
If ppx = p3x And ppy = p3y Then v}@Uc-(
point_in = True K)eyFc
Exit Function [9y y<Z5
End If ^vI`#}?
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) b >' c
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) w4RtIDW:
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) (62Sc]
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) w(Q{;RNM;
sum = aob + boc + cod + doa ;r XZ?"
If 360.01 > sum And sum > 359.99 Then c2PBYFCyC
point_in = True ]oKHS $W9
Else V} h)e3X
point_in = False l_ LH!Tu
End If 6dRvx;d
End Function
