'判断点在区域内函数 bjS {(
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 j~QwV='S
Dim aob, boc, cod, doa, sum As Single :i7;w%B
If ppx = p1x And ppy = p1y Then +^<](z
point_in = True BPHW}F]X
Exit Function E!AE4B1bd
End If -%dCw6aX+
If ppx = p2x And ppy = p2y Then u-C)v*# L
point_in = True xwty<?dRW1
Exit Function 4`R(?
End If W'.m'3#z
If ppx = p3x And ppy = p3y Then l@:0e]8|o
point_in = True KG5>]_GH
Exit Function ]:\dPw`A
End If ?' je)F
b u"!jHPB
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) &"q=5e2
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) -!9G0h&i|
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) W}1
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doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) fxIf|9Qi`
sum = aob + boc + cod + doa 8x{'@WCG%
If 360.01 > sum And sum > 359.99 Then 2Hv+W-6v
point_in = True 2:=
Else <^uBoKB/f
point_in = False k$7Jj-+~
End If f
V( J|
End Function
