'判断点在区域内函数 46XN3r
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 $kz!zjC'
Dim aob, boc, cod, doa, sum As Single <y=ovkM3
If ppx = p1x And ppy = p1y Then tYe:z:7l?<
point_in = True U}AX0*S
Exit Function 0i@:KYP
End If RQ'
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If ppx = p2x And ppy = p2y Then ?pwE0N^
point_in = True `E>vG-9
Exit Function <^><3U`
End If .[j%sGdKl
If ppx = p3x And ppy = p3y Then bhg}-dto
point_in = True b1^cD6sT+
Exit Function |4>:M\h
End If 8T5k-HwE
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) w~@[r4W
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) &8?`<
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) G$=-,6kZO
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) i0Pn Z
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sum = aob + boc + cod + doa Mg? L-C
If 360.01 > sum And sum > 359.99 Then aiux^V
point_in = True Sb"2Im >
Else L.)yXuo4
point_in = False x)viY5vjH
End If =ApY9`
End Function