'判断点在区域内函数 }US^GEs(
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 //W7$DYEG
Dim aob, boc, cod, doa, sum As Single L28DBj E)A
If ppx = p1x And ppy = p1y Then XzV:q!e-
point_in = True fO'"UI
Exit Function SuuLB6{u3
End If
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If ppx = p2x And ppy = p2y Then wr+r J
point_in = True L%sskV(
Exit Function XI"8d.VR
End If IA&NMf;{
If ppx = p3x And ppy = p3y Then qo^PS
point_in = True ^w1&A3=6
Exit Function zFpM\{`[g
End If gLGu#6YVu
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) Fu;\t 0
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) %hM8px4d
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) @UgZZ
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) dvLO #o{
sum = aob + boc + cod + doa h|Z%b_a
If 360.01 > sum And sum > 359.99 Then b IZuZF>*
point_in = True Jq8CII
Else Q^c)T>OAI
point_in = False -o`Eka!ELz
End If yR|Beno
End Function