'判断点在区域内函数 ~ d/Doi
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 dZ9[w kn
Dim aob, boc, cod, doa, sum As Single ([_ls8
If ppx = p1x And ppy = p1y Then zc'!a"
point_in = True *oY59Yf
Exit Function 2[[pd&MJZ
End If Z7JI4"
If ppx = p2x And ppy = p2y Then f6PXcV
point_in = True q!7z4Cn
Exit Function 5Jp@n .
End If 8~ .r/!wfy
If ppx = p3x And ppy = p3y Then IxYuJpi
point_in = True R5X<8(4p
Exit Function r,2x?Qi
End If sw' 20I
Nj %!N
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) nFzhj%Pt;
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) y,DK@X
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) LZ|G" 5X[
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) .Ig`v
sum = aob + boc + cod + doa U.crRrN
If 360.01 > sum And sum > 359.99 Then Fq&@dxN3
point_in = True 4M i*bN,
Else o83HR[
point_in = False @0A0\2
End If rxI?|}4
End Function