'判断点在区域内函数 7vPGb:y
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 [=cbzmX[
Dim aob, boc, cod, doa, sum As Single 7W4m&+
If ppx = p1x And ppy = p1y Then dVLrA`'P*
point_in = True k??CXW
Exit Function d<OdQvW.
End If K`X'Hg#_P2
If ppx = p2x And ppy = p2y Then @zw&-b:qI
point_in = True h|'|n/F
Exit Function @ kv~2m
End If 9CwtBil<#g
If ppx = p3x And ppy = p3y Then /03Wst
point_in = True j<Pw0?~s6
Exit Function QRl+7V
End If U_aI!`WXd
;QG8@ms|
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) oIj/V|ByK
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) /u]#dX5
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) Kt]vTn7!9
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) P$h) Y
sum = aob + boc + cod + doa L*6<h
If 360.01 > sum And sum > 359.99 Then CUC]-]8
point_in = True c@]G;> o
Else xo
^|d3
point_in = False }>,%El/
End If 5\JV }
End Function