'判断点在区域内函数 MxI*ml8z?
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 z_ '!?K{
Dim aob, boc, cod, doa, sum As Single [{ R>'~
If ppx = p1x And ppy = p1y Then 5} <OB-9
point_in = True =8TBkxG
Exit Function k%\y,b*
End If V @s93kh
If ppx = p2x And ppy = p2y Then P*>?/I `G
point_in = True r#_0_I1[
Exit Function lj8ficANo
End If nT2b"wkTT
If ppx = p3x And ppy = p3y Then %K8YZc(&
point_in = True T-GvPl9ZJw
Exit Function %C #Ps
End If 7fzH(H
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) :?= 1aiS
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) )c1Pj#|
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) hR:i!
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) t2.jg?`k
sum = aob + boc + cod + doa 6(t'B!x
If 360.01 > sum And sum > 359.99 Then \}9)`1D
point_in = True F
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Else ^&y*= 6C
point_in = False uHbbPtk
End If f\=,_AQ
End Function
