'判断点在区域内函数 A6(/;+n
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 m!HJj>GEo
Dim aob, boc, cod, doa, sum As Single vUM4S26"NT
If ppx = p1x And ppy = p1y Then Wvf
^N(
point_in = True oYH-wQ j
Exit Function y?4BqgB
End If 1yu4emye4
If ppx = p2x And ppy = p2y Then
7hPY_W
y
point_in = True 3)ywX&4"L
Exit Function $-sHWYZ
End If +QJ#2~pE
If ppx = p3x And ppy = p3y Then H9e<v4c
point_in = True )\$|X}uny&
Exit Function Btcy)LRk
End If 8bld3p"^
rFL;'Cj@
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) pFjK}JOF
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) Er?&Y,o
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) gRcQt :
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) KPUV@eQ,
sum = aob + boc + cod + doa qlPT Ll
If 360.01 > sum And sum > 359.99 Then EXqE~afm2
point_in = True 3(80:@|
Else )lDD\J7
point_in = False {"KMs[M
End If Pe3o;mx
End Function