'判断点在区域内函数 1P]J3o
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 l@4pZkdq
Dim aob, boc, cod, doa, sum As Single '[r: pwE
If ppx = p1x And ppy = p1y Then _d!sSyk`
point_in = True U& GPede
Exit Function 8hV]t'/;
End If U/c+j{= ~
If ppx = p2x And ppy = p2y Then |@d(2f8
point_in = True ]n=z(2Z9lD
Exit Function Ioe.[&o6B
End If S5|7D[*
If ppx = p3x And ppy = p3y Then Y1o[|yt W
point_in = True Rd(8j+Q?ps
Exit Function |A4B4/!
End If 5ncW
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) =Vh]{ y~$
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) JP!e'oWxi
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) nA Nl9;G
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) hl[<o<`Q
sum = aob + boc + cod + doa u%L6@ M2
If 360.01 > sum And sum > 359.99 Then A._CCou
point_in = True )g=mv*9>
Else 6cg,L:j#
point_in = False x~'_;>]r_
End If Ob%iZ.D|3<
End Function
