'判断点在区域内函数 B}7j20:Z
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 OTYkJEC8\N
Dim aob, boc, cod, doa, sum As Single oyiG04H&
If ppx = p1x And ppy = p1y Then 6EY\
point_in = True b0 }dy\dnQ
Exit Function %]F/!n
End If WReHep
If ppx = p2x And ppy = p2y Then ` { Ox=+]M
point_in = True 7jw+o*;
Exit Function I*3 >>VN
End If vAP1PQX;
If ppx = p3x And ppy = p3y Then %S%UMA.
point_in = True
qbc= kP
Exit Function {yNeZXA>
End If |7 K>`
/pRv
i>_(:
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) #+<YFm\i
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) n:a~=^IV
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) A#`$#CO
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) Swf%WuDj
sum = aob + boc + cod + doa `\## M=
If 360.01 > sum And sum > 359.99 Then I> 8_gp\1
point_in = True fNda&
Else pa^_ D~
point_in = False BJ_"FG
End If ;pL!cG@
End Function
