'判断点在区域内函数 "'v+*H 3
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 ,JwX*L<:
Dim aob, boc, cod, doa, sum As Single Ey=2 zo^F
If ppx = p1x And ppy = p1y Then MLd; UHU
point_in = True rH7Cv/Y
Exit Function _lv{ 8vf1B
End If ;%n' k
If ppx = p2x And ppy = p2y Then qyRN0ZB"A^
point_in = True nah?V"
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Exit Function </25J((
End If ' 4'Z
If ppx = p3x And ppy = p3y Then 'h$1
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point_in = True 9lq5\ tL-
Exit Function yQhO-jT
End If cO5F=ZxR
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) !<];N0nt#
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) %6Gg&Y$j!
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) l #[Z$+!09
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) ys`-QlkB
sum = aob + boc + cod + doa XUP{]w`.Z
If 360.01 > sum And sum > 359.99 Then }c8nn
point_in = True do8[wej<:
Else $@Vn+|
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point_in = False V|YQhd0kv
End If [5&k{*}}
End Function
