'判断点在区域内函数 - 5-SlQu
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 \%4+mgiD
Dim aob, boc, cod, doa, sum As Single YT 03>!B
If ppx = p1x And ppy = p1y Then fPk9(X;G!p
point_in = True aab4c^Ms=
Exit Function Kp=3\) &
End If +KwF
U
If ppx = p2x And ppy = p2y Then PJ11LE
point_in = True v8fZ?dx
Exit Function u%IKM \
End If 0R^(rE"2#
If ppx = p3x And ppy = p3y Then 4z 3$
point_in = True 7!yF5 +_d
Exit Function Nxs%~ wZ
End If w-Q 6
-
kA :;c } p
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) yI|?iBc7nC
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) [\M?8R$)
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) m"m;(T{ v
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) R\Ynn^w
sum = aob + boc + cod + doa 2'^OtM,
If 360.01 > sum And sum > 359.99 Then bg3j o1J
point_in = True (lck6v?h
Else #&8pp8wd,}
point_in = False ]A<u eM
End If _.8]7f`*Gc
End Function
