'判断点在区域内函数 )d`$2D&iY
Function point_in(p1x As Single, p1y As Single, p2x As Single, p2y As Single, p3x As Single, p3y As Single, p4x As Single, p4y As Single, ppx As Single, ppy As Single) As Boolean iH0c1}<k$
Dim aob, boc, cod, doa, sum As Single c?",kzo
If ppx = p1x And ppy = p1y Then I
GtH<0Du
point_in = True !{lb#
Exit Function V%=t2+
End If H4Ek,m|c
If ppx = p2x And ppy = p2y Then _Z2)e*(
point_in = True {HnOUc\4
Exit Function ev
>9P
End If O9)8a]
If ppx = p3x And ppy = p3y Then _Y {g5t
point_in = True @7'gr>_E
Exit Function L 3@wdC~0
End If ?,C,q5
T\
4*X$Jle|
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) =x>k:l~s
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) JN)t'm[kyE
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) 8
K!a:{
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) DYK|"@
sum = aob + boc + cod + doa oZtz"B
If 360.01 > sum And sum > 359.99 Then .*"IJD9
point_in = True 6I0MJpLW
Else ;@hP*7Lm
point_in = False xd<68%Cn
End If -bF+uCfba
End Function