'判断点在区域内函数 b?VByJl
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 Cbl>eKw
Dim aob, boc, cod, doa, sum As Single bv7xh*/
If ppx = p1x And ppy = p1y Then 'tcve2Tt
point_in = True @<X[,Mj
Exit Function o|c&$)m
End If .IVKgQ
B
If ppx = p2x And ppy = p2y Then !q$>6P
point_in = True !'IZr{Y>
Exit Function Uovna:"
End If UH;bg}=8
If ppx = p3x And ppy = p3y Then qJO6m-
point_in = True Ktvs*.?
Exit Function ,\#j6R,{I
End If V pzjh,r-j
q[}r e2
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) u,}>I%21
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) 2PUB@B'
+
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) m=v.< +>
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) Pth4_]US
sum = aob + boc + cod + doa ~E_irzOFP
If 360.01 > sum And sum > 359.99 Then p_e x
point_in = True e%4vvPp
Else ~X %cbFom=
point_in = False g>' 6"p;
End If 7;C~>WlU
End Function
