Home Manual Packages Global Index Keywords Quick Reference | # functions in hydra.i - h
hydra |
                 hydra.i

       defines several functions useful for examining and extracting
       data from hydra-generated Silo/PDB dump files:
       openh       -- use instead of openb for hydra files
       hydra_xyz   -- extracts xyz and boundary arrays
       hydra_data  -- extracts data nodal or zonal arrays
       hydra_mix   -- extracts zonal data for mixed zones
       hydra_iparm -- extracts integer parameter values
       hydra_gblk  -- extracts information relating hblks to
                      user blocks
       The function hydra_old sets the variable naming as it was for
       dump files generated with codes built before about December 1998.
       You may also set _hy_auto_enable to autodetect file version.

    keyword,  defined at i/hydra.i   line 6
SEE ALSO: | openh, hydra_xyz, hydra_data, hydra_mix, hydra_iparm, hydra_gblk, hydra_old
hydra_array |
                 name_array = hydra_array(f, ublk, name)

              or pname_arrays = hydra_array(f, ublk, [name1,name2,...,nameN])
                   eq_nocopy, name_array1, *pname_arrays(1)
                   ...
                   eq_nocopy, name_arrayN, *pname_arrays(N)

         reads variable array NAME for user block UBLK from the hydra file F.
         If NAME=="matlist", you get the "Materials_matlist" array.
         Coordinates can be obtained using the names x, y or z.
         Ublk numbering starts at 0.
         Note that here zone centered arrays are given using the hydra convention
         so that i=imax, j=jmax, k=kmax are missing.  Thus in order to use the
         Yorick plc and plf functions correctly you should index the plotted
         variable i.e. for a 2D array.
         plf, den(1:-1,1:-1), y, x

    interpreted function, defined at i/hydra.i   line 868
SEE ALSO: | hydra_xyz, hydra_mix
hydra_blocks |
                 gnblk= hydra_blocks(f, mdims, mlens)

         returns number of blocks GNBLK, block dimensions MDIMS, and
         block lengths MLENS for the hydra mesh in file F.
         MDIMS is 3-by-NBLK, MLENS is GNBLK elements.

    interpreted function, defined at i/hydra.i   line 690
SEE ALSO: | hydra_xyz, hydra_iparm
hydra_data |
                 name_array = hydra_data(f, name)
              or pname_arrays = hydra_data(f, [name1,name2,...,nameN])
                   eq_nocopy, name_array1, *pname_arrays(1)
                   ...
                   eq_nocopy, name_arrayN, *pname_arrays(N)

         reads variable NAME from the hydra file F.  If F is a multiblock
         file, NAME_ARRAY will be 1-D; for single block problems it will
         be 3-D.  If NAME=="matlist", you get the "Materials_matlist"
         array.  Coordinates can be obtained using the names x, y or z.
         In the second form, NAME1, ..., NAMEN are retrieved simultaneously,
         which is useful when F is a large family of files.
         Note that zone centered arrays are adjusted to the hex convention
         that cells with i=1, j=1, k=1 are missing, rather than the hydra
         convention that i=imax, j=jmax, k=kmax are missing.

    interpreted function, defined at i/hydra.i   line 348
SEE ALSO: | hydra_xyz, hydra_mix, hydra_array
hydra_fparm |
                 value= hydra_fparm(f, name)
              or names= hydra_fparm(f)

         returns value of hydra parameter NAME from file F,
         or a list of all names in NAME is not supplied.
         If NAME is not a string, returns that parameter
         or parameters (NAME is index in the returned list of names),
         for example hydra_fparm(f,1:0) returns all parameters.

    interpreted function, defined at i/hydra.i   line 650
SEE ALSO: | hydra_xyz, hydra_iparm
hydra_gblk |
                 gblk= hydra_gblk(f)

         return global block information from the hydra PDB/Silo file F.
         Each hblk in the mesh corresponds to a particular imin:imax,
         jmin:jmax, kmin:kmax in a particular gblk.  The return value is
         a 2D long array 7-by-numberof(h blocks):
         gblk(1,)=   user block number for this hblk
         gblk(2:3,)= gblk [imin,imax] of this hblk
         gblk(4:5,)= gblk [jmin,jmax] of this hblk
         gblk(6:7,)= gblk [kmin,kmax] of this hblk

    interpreted function, defined at i/hydra.i   line 781
SEE ALSO: | hydra_xyz, hydra_data, openh
hydra_iparm |
                 value= hydra_iparm(f, name)
              or names= hydra_iparm(f)

         returns value of hydra parameter NAME from file F,
         or a list of all names in NAME is not supplied.
         If NAME is not a string, returns that parameter
         or parameters (NAME is index in the returned list of names),
         for example hydra_iparm(f,1:0) returns all parameters.

    interpreted function, defined at i/hydra.i   line 610
SEE ALSO: | hydra_xyz, hydra_fparm
hydra_mix |
                 mixdat = hydra_mix(f, matlist)
                   eq_nocopy, mixn, *mixdat(1)
                   eq_nocopy, mixcell, *mixdat(2)
                   eq_nocopy, mixnmat, *mixdat(3)
                   eq_nocopy, mixhist, *mixdat(4)
              or mix_array = hydra_mix(f, mixdat, name)

              or pmix_array = hydra_mix(f, matlist, [name1,...,nameN], mixdat)
                   eq_nocopy, mix_array1, *pmix_array(1)
                   ...
                   eq_nocopy, mix_arrayN, *pmix_array(N)

         In first form, returns MIXDAT and MATLIST for the hydra file F.
         MIXDAT consists of two arrays: MIXN is a list of the number of
         mixed cells for each block, and MIXCELL is an index array
         into any hex global cell array (as returned by hydra_data),
         MIXNMAT is the number of mix "zones" within each cell,
         and MIXHIST is the list required in order to use the
         histogram function on a mix array.
         In the second form, reads the mix data for the variable NAME
         in the hydra file F; the MIXDAT argument must have been returned
         by a previous call to hydra_mix using the first form.
         In the third form, MATLIST and MIXDAT are both returned along
         with the set of variables NAME1, ..., NAMEN, so that a number of
         variables can be retrieved in one call (useful when F is a large
         family of files).
         For example, to compute the temperature in each cell, using
         a mass weighted average in mixed zones, you would do this:
           den = hydra_data(f,"den");
           tmat = hydra_data(f,"tmat");
           mixdat = hydra_mix(f, matlist);
           local mixcell, mixhist;
           eq_nocopy, mixcell, *mixdat(2);
           eq_nocopy, mixhist, *mixdat(4);
           denx = hydra_mix(f, mixdat, "den");
           tmatx = hydra_mix(f, mixdat, "tmat");
           vf = hydra_mix(f, mixdat, "vf");
           tavg = tmat;
           tavg(mixcell) = histogram(mixhist, tmatx*denx*vf)/den(mixcell);

    interpreted function, defined at i/hydra.i   line 423
SEE ALSO: | hydra_xyz, hydra_data
hydra_old |
                 hydra_old, 1
                 hydra_old, 0

         use old (1) or new (0) hydra dump file variable names.

    interpreted function, defined at i/hydra.i   line 27
SEE ALSO: | hydra
hydra_rootfile |
     hydra_rootfile

    interpreted function, defined at i/hydra.i   line 825
hydra_ublk |
                 ublk= hydra_ublk(f)

         return user block information from the hydra PDB/Silo file F.
         Each hblk in the mesh corresponds to a particular imin:imax,
         jmin:jmax, kmin:kmax in a particular ublk.  The return value is
         a 2D long array 7-by-numberof(h blocks):
         ublk(1,)=   user block number for this hblk
         ublk(2:3,)= ublk [imin,imax] of this hblk
         ublk(4:5,)= ublk [jmin,jmax] of this hblk
         ublk(6:7,)= ublk [kmin,kmax] of this hblk

    interpreted function, defined at i/hydra.i   line 741
SEE ALSO: | hydra_xyz, hydra_data, openh
hydra_varname |
     hydra_varname

    interpreted function, defined at i/hydra.i   line 409
hydra_xyz |
                 mesh= hydra_xyz(f)
              or mesh= hydra_xyz(f, ublk, i0, j0, k0, face)
              or mesh= hydra_xyz(f, ublk, i0, j0, k0)

         read a 3D mesh object from the hydra PDB/Silo file F.
         The returned mesh is _lst(xyz, bound, mbnds, blks, start).
         Note that the boundary arrays are adjusted to the hex convention
         that cells with i=1, j=1, k=1 are missing, rather than the hydra
         convention that i=imax, j=jmax, k=kmax are missing.
         In the first form, the ray entry search will start on the
         first open boundary face in the mesh.  If the actual problem
         boundary is not convex, you need to identify a surface of
         constant i, j, or k in the problem which is convex, and which
         all the rays you intend to trace intersect.
         UBLK is the user block number (starting from 0),
         I0, J0, K0 are the (1-origin) logical coordinates of a
           hydra *cell*.  Note that unlike hex cells, the hydra
           cell bounded by nodes (1,1,1) and (2,2,2) is numbered (1,1,1).
           (Hex numbers it (2,2,2).)
         FACE is the face number on cell (I0,J0,K0) which you want a
           ray to enter.  0 means the -I face, 1 the +I face, 2 the -J
           face, 3 the +J face, 4 the -K face, and 5 the +K face.
           As you step from this cell to its neighbors, then to their
           neighbors, and so on, this face must trace out a convex
           surface for the ray entry search.  Rays not intersecting
           this surface will not enter the problem; the ray trace
           will begin at this surface, not at -infinity.
         If FACE==-1 or is omitted (as in the third form), then the
         given points on the rays are assumed to lie inside the mesh,
         and a pseudo ray from the centroid of cell (I0, J0, K0) will be
         tracked to the given point on each ray; the ray will be launched
         into the cell containing that point.
         You can set a hydra_bnd_hook function before calling hydra_xyz
         if the boundary conditions for hex need to be different than
         for hydra.

    interpreted function, defined at i/hydra.i   line 104
SEE ALSO: | hydra_bnd_hook, hydra_data, openh
hydrap_getblk |
     hydrap_getblk

    interpreted function, defined at i/hydra.i   line 853
hydrap_root |
     hydrap_root

    interpreted function, defined at i/hydra.i   line 830