'判断点在区域内函数 DSRc4|L
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 W`9{RZ'
Dim aob, boc, cod, doa, sum As Single C;HEvq7
If ppx = p1x And ppy = p1y Then k{;?>=FH!
point_in = True *Ci&1Mu^Z
Exit Function kR
%,:
End If 2QbKh)
If ppx = p2x And ppy = p2y Then 9ns( F:
point_in = True TxK
v!-1
Exit Function qzxWv5UH
End If )uHat#
If ppx = p3x And ppy = p3y Then drjNK!XL@
point_in = True a. D cmy{
Exit Function @-S7)h>~
End If .jqil0#)Y"
W)r|9G8T
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) seK;TQ3/7
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) c!6v-2ykv
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) oQ]FyV
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) D.{vuftu
sum = aob + boc + cod + doa TDR|*Cs
If 360.01 > sum And sum > 359.99 Then w,j!%N
point_in = True N*Q*>q
Else >g!$H}\
point_in = False q[qX O5
End If 3Y)z{o>P
End Function