'判断点在区域内函数 IjDT'p_
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 1n`1o-&l-
Dim aob, boc, cod, doa, sum As Single 5{ FM#@
If ppx = p1x And ppy = p1y Then uPFHlT
point_in = True .b#9q6F-/
Exit Function PNJe&q0*
End If -H4+ur JJ
If ppx = p2x And ppy = p2y Then XW?ybH6
point_in = True :G`L3E&1s
Exit Function >I d!I
End If MKe^_uF
If ppx = p3x And ppy = p3y Then k%l_N)38
point_in = True e$Bf[F#;-
Exit Function 2>$F0
M
End If Dr6s ^}}~n
F:;!) H*
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) L%WME8PB
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) z9M.e.
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) Vm~qk
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) w#xeua|*I#
sum = aob + boc + cod + doa f]ue#O
If 360.01 > sum And sum > 359.99 Then !{Q :(B#ec
point_in = True zkh hN"bX
Else &"[)s[m+t
point_in = False U=kx`j>
End If 3^\? >C7
End Function
