'判断点在区域内函数 }`xdWY
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 {uU 2)5i2-
Dim aob, boc, cod, doa, sum As Single ~i ,"87$[
If ppx = p1x And ppy = p1y Then gAt~?HvW6
point_in = True tdep|sD
Exit Function zI^]esX!2_
End If )I`if(fG
If ppx = p2x And ppy = p2y Then [:h5}
point_in = True O0T/#<Cn!
Exit Function h7]EB!D\A
End If %'bJ:
If ppx = p3x And ppy = p3y Then `&!k!FZY*
point_in = True +m)q% I>
Exit Function 5G[x }4U
End If |mhKI is U
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) qnChM;)
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) R_ ZK 0ar
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) u.,Q4u|!
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) Zd!U')5/
sum = aob + boc + cod + doa !E2W\chi
If 360.01 > sum And sum > 359.99 Then kJ{+M] pW
point_in = True vDFGd-S
Else tF7hFL5f
point_in = False xwi\
End If :>+\17tx
End Function