'判断点在区域内函数 N]iu
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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 "JJEF2e@Z
Dim aob, boc, cod, doa, sum As Single L6E8A?>5rD
If ppx = p1x And ppy = p1y Then E"[h20`\/
point_in = True Mpu8/i
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Exit Function *oca
End If l1MVC@'pvP
If ppx = p2x And ppy = p2y Then Ln
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point_in = True di5>aAJ)D
Exit Function $bd2TVNV:
End If :d ,]BB
If ppx = p3x And ppy = p3y Then 4A@77#:J5
point_in = True oo{3-+ ?
Exit Function Z<^TO1xs9B
End If ]| PDsb"e
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) +M/1,&
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) 3sy|pa
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) y+g01z
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) ? j8S.d ~
sum = aob + boc + cod + doa ;LjTsF'
If 360.01 > sum And sum > 359.99 Then {} gr\
point_in = True Yl#|+xYA5[
Else (;.wsz &K
point_in = False MrGq{,6C
End If *dw6>G0U
End Function
