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28 lines
943 B
Fortran
28 lines
943 B
Fortran
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subroutine to_contest_msg(msg0,msg)
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! If the message has "R grid4" istead of "grid4", remove the "R "
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! and substitute the diametrically opposite grid.
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character*6 g1,g2
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character*22 msg0,msg
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logical isgrid
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isgrid(g1)=g1(1:1).ge.'A' .and. g1(1:1).le.'R' .and. g1(2:2).ge.'A' .and. &
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g1(2:2).le.'R' .and. g1(3:3).ge.'0' .and. g1(3:3).le.'9' .and. &
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g1(4:4).ge.'0' .and. g1(4:4).le.'9' .and. g1(1:4).ne.'RR73'
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i0=index(msg0,' R ') + 3 !Check for ' R ' in message
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g1=msg0(i0:i0+3)//' '
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if(isgrid(g1)) then !Check for ' R grid'
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call grid2deg(g1,dlong,dlat)
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dlong=dlong+180.0
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if(dlong.gt.180.0) dlong=dlong-360.0
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dlat=-dlat
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call deg2grid(dlong,dlat,g2) !g2=antipodes grid
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msg=msg0(1:i0-3)//g2(1:4) !Send message with g2
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else
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msg=msg0
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endif
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return
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end subroutine to_contest_msg
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