c
c ==========================================================
subroutine in2eu(qi,mxi,myi,lbi,ubi,q,mx,my,lb,ub,
& lbr,ubr,shaper,meqn,nc,t)
c ==========================================================
c
c # Computes conserved quantities from primitives for
c # Euler equations. The inverse to flgout2eu.f.
c
c # Copyright (C) 2003-2007 California Institute of Technology
c # Ralf Deiterding, ralf@amroc.net
c
implicit double precision(a-h,o-z)
common /param/ gamma,gamma1
common /PhysData/ Wk, RU, PA
c
integer meqn, mx, my, mxi, myi
dimension q(meqn,mx,my), qi(mxi,myi)
c
integer lb(2), ub(2), lbi(2), ubi(2), lbr(2), ubr(2), shaper(2),
& mresult, stride, imin(2), imax(2), i, getindx, d
c
stride = (ub(1) - lb(1))/(mx-1)
do 5 d = 1, 2
imin(d) = max(lb(d), lbr(d))
imax(d) = min(ub(d), ubr(d))
if (mod(imin(d)-lb(d),stride) .ne. 0) then
imin(d) = imin(d) + stride - mod(imin(d)-lb(d),stride)
endif
imin(d) = getindx(imin(d), lb(d), stride)
if (mod(imax(d)-lb(d),stride) .ne. 0) then
imax(d) = imax(d) - mod(imax(d)-lb(d),stride)
endif
imax(d) = getindx(imax(d), lb(d), stride)
5 continue
do 10 i = imin(1), imax(1)
do 10 j = imin(2), imax(2)
c # Density
if (nc.eq.1) q(1,i,j) = qi(i,j)
c # Velocity u
if (nc.eq.2) q(2,i,j) = q(1,i,j)*qi(i,j)
c # Velocity v
if (nc.eq.3) q(3,i,j) = q(1,i,j)*qi(i,j)
c # Total energy density
if (nc.eq.4) q(4,i,j) = qi(i,j)
c # Temperature
if (nc.eq.5) q(4,i,j) = (qi(i,j)*RU*q(1,i,j))/
& (Wk*gamma1) + 0.5d0*
& (q(2,i,j)**2+q(3,i,j)**2)/q(1,i,j)
c # Pressure
if (nc.eq.6) q(4,i,j) = qi(i,j)/gamma1 + 0.5d0*
& (q(2,i,j)**2+q(3,i,j)**2)/q(1,i,j)
10 continue
return
end