| safeng1122 |
2013-04-08 13:21 |
'判断点在区域内函数 $ vBFs]h
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 {%D4%X<
Dim aob, boc, cod, doa, sum As Single blKF78
If ppx = p1x And ppy = p1y Then `PtfPt<{
point_in = True ATF>"Ux
Exit Function .k"unclT0
End If J(5#fo{Q.g
If ppx = p2x And ppy = p2y Then qK)T# sh
point_in = True f<;eNN
Exit Function f_z]kA
+H
End If }2''}-Nc
If ppx = p3x And ppy = p3y Then 48)D%867.;
point_in = True VQI[ J
Exit Function .naSK`J,`
End If ! JauMR
O$7r)B6Cs
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) Q"QZ^!zRl
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) BU O8 Z]
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) l^2m7 7)
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) M Al4g+es
sum = aob + boc + cod + doa W.l#@p
If 360.01 > sum And sum > 359.99 Then E/2_@&U:}
point_in = True -
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Else d^Rea8
point_in = False pB0 SCS*
End If MxqIB(5k
End Function
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