'判断点在区域内函数 c?*=|}N
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 7\[@m3s
Dim aob, boc, cod, doa, sum As Single
1;8UC;,
If ppx = p1x And ppy = p1y Then vjCu4+w($Z
point_in = True <C iSK!
Exit Function 8)3*6+D
End If HTS0s\R$
If ppx = p2x And ppy = p2y Then Hqx-~hQO
point_in = True P{jbl!UD7
Exit Function CL;}IBd a
End If ^_W#+>&--
If ppx = p3x And ppy = p3y Then "ycJ:Xv49
point_in = True D&
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Exit Function 4G0m\[Du
End If -p-ZzgQ
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) +oML&g-g_
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) ~?Pw& K2
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) RVmh6m
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) /NFj(+&g+
sum = aob + boc + cod + doa ,WYPU
If 360.01 > sum And sum > 359.99 Then LEf^cM=>
point_in = True GPudaF{
Else k FD;i
point_in = False IdYt\^@>
End If 1#2 I
End Function