'判断点在区域内函数 "K$ Wh1<7
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 Jn@Mbl
Dim aob, boc, cod, doa, sum As Single MHr0CYyb.
If ppx = p1x And ppy = p1y Then `\4JwiPo
point_in = True 6=g]Y!o $
Exit Function #9hXZr/8
End If gQpD]p%k
If ppx = p2x And ppy = p2y Then <& Y}j&(
point_in = True e<O;pM:
Exit Function rb}wv16?
End If cH* /zNp
If ppx = p3x And ppy = p3y Then Xm^h5jAr
point_in = True $6&GAJe
Exit Function I bv_D$cT
End If ?m9UhLeaS=
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) D@r n@N
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) 8T.5Mhx0jS
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) {7![3`%7
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) o~.o^0Y
sum = aob + boc + cod + doa hNq8
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If 360.01 > sum And sum > 359.99 Then $ kD`$L@U
point_in = True c]aK
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Else z ^a!C# IX
point_in = False fBWJ%W
End If XC/]u%n8](
End Function
