Provided by: splash_2.10.1-1_amd64 
NAME
splash -- A visualisation tool for SPH data (c)2004-2020 Daniel Price and contributors
SYNOPSIS
splash file1 file2 file3...
DESCRIPTION
SPLASH: A visualisation tool for SPH data (c)2004-2020 Daniel Price and contributors
v2.10.1 [24th June 2020]
Usage with flags: splash [-p fileprefix] [-d defaultsfile] [-l limitsfile] [-ev] [-lowmem]
[-o format] [-x col] [-y col] [-render col] [-cont col] file1 file2 ...
Command line options:
-p fileprefix
: change prefix to ALL settings files read/written by splash
-d defaultsfile
: change name of defaults file read/written by splash
-l limitsfile
: change name of limits file read/written by splash
-e, -ev
: use default options best suited for line plotting (.ev files)
-360 : set default options suited to 360 video
-lm, -lowmem
: use low memory mode [applies only to sphNG data read at present]
-o pixformat
: dump pixel map in specified format (use just -o for list of formats)
Command line plotting mode:
-x column
: specify x plot on command line (ie. do not prompt for x)
-y column
: specify y plot on command line (ie. do not prompt for y)
-r[ender] column
: specify rendered quantity on command line (ie. no render prompt) (will take
columns 1 and 2 as x and y if -x and/or -y not specified)
-vec[tor] column
: specify vector plot quantity on command line (ie. no vector prompt)
-c[ontour] column : specify contoured quantity on command line (ie. no contour prompt)
-dev device
: specify plotting device on command line (ie. do not prompt)
convert mode ("splash to X dumpfiles"): splash to ascii : convert SPH data to
ascii file dumpfile.ascii
to binary
: convert SPH data to simple unformatted binary dumpfile.binary:
write(1) time,np,ncols
do i=1,np
write(1) dat(1:ncols),itype
enddo
to stream
: convert SPH data to streamed binary format dumpfile.binarystream:
t,np,ncols,np*(dat(1:ncols),itype) [4,4,4,np*(ncols*4,4)] bytes
to phantom : convert SPH data to binary dump file for PHANTOM to gadget : convert
SPH data to default GADGET snapshot file format
Grid conversion mode ("splash to X dumpfiles"):
splash to grid
: interpolate basic SPH data (density, plus velocity if present in data)
to 2D or 3D grid, write grid data to file (using default output=ascii)
to gridascii
: as above, grid data written in ascii format
to gridascii2
: grid data written in ascii format, all in one file
to gridbinary
: as above, grid data in simple unformatted binary format:
write(unit) nx,ny,nz,ncolumns,time,xmin,xmax,ymin,ymax,zmin,zmax [ 4x4,7x8 bytes ]
write(unit) (((rho(i,j,k),i=1,nx),j=1,ny),k=1,nz) [ 8 bytes each ] write(unit)
(((vx(i,j,k), i=1,nx),j=1,ny),k=1,nz) [ 8 bytes each ] write(unit) (((vy(i,j,k),
i=1,nx),j=1,ny),k=1,nz) [ 8 bytes each ] write(unit)
(((...(i,j,k),i=1,nx),j=1,ny),k=1,nz) [ 8 bytes each ]
to gridstream
: grid data in byte-stream binary format (e.g. for python):
nx,ny,nz,ncolumns,time,xmin,xmax,ymin,ymax,zmin,zmax,rho [ 4,4,4,4,8*7,8*nx*ny*nz ]
allto grid
: as above, interpolating *all* columns to the grid (and output file)
allto gridascii
: as above, with ascii output
allto gridbinary
: as above, with binary output
Analysis mode ("splash calc X dumpfiles") on a sequence of dump files:
splash calc energies
: calculate KE,PE,total energy vs time
output to file called 'energy.out'
calc massaboverho : mass above a series of density thresholds vs time
output to file called 'massaboverho.out'
calc max
: maximum of each column vs. time
output to file called 'maxvals.out'
calc min
: minimum of each column vs. time
output to file called 'minvals.out'
calc diff
: (max - min) of each column vs. time
output to file called 'diffvals.out'
calc amp
: 0.5*(max - min) of each column vs. time
output to file called 'ampvals.out'
calc delta
: 0.5*(max - min)/mean of each column vs. time
output to file called 'deltavals.out'
calc mean
: mean of each column vs. time
output to file called 'meanvals.out'
calc rms
: (mass weighted) root mean square of each column vs. time
output to file called 'rmsvals.out'
calc tracks
: track particle data vs time for selected* particle,
output to file called 'tracks.out'
( * select "xy limits relative to particle" in l)imits menu", or
press "t" in interactive mode, and save settings to splash.defaults )
the above options all produce a small ascii file with one row per input file. the
following option produces a file equivalent in size to one input file (in ascii
format):
calc timeaverage
: time average of *all* entries for every particle
output to file called 'time_average.out'
calc ratio
: ratio of *all* entries in each file compared to first
output to file called 'ratio.out'
Basic splash usage is explained in the userguide,
located in the directory splash/docs/splash.pdf
v2.10.1 [24th June 2020]
Usage: splash file1 file2 file3...
Usage with flags: splash [-p fileprefix] [-d defaultsfile] [-l limitsfile] [-ev] [-lowmem]
[-o format] [-x col] [-y col] [-render col] [-cont col] file1 file2 ...
Command line options:
-p fileprefix
: change prefix to ALL settings files read/written by splash
-d defaultsfile
: change name of defaults file read/written by splash
-l limitsfile
: change name of limits file read/written by splash
-e, -ev
: use default options best suited for line plotting (.ev files)
-360 : set default options suited to 360 video
-lm, -lowmem
: use low memory mode [applies only to sphNG data read at present]
-o pixformat
: dump pixel map in specified format (use just -o for list of formats)
Command line plotting mode:
-x column
: specify x plot on command line (ie. do not prompt for x)
-y column
: specify y plot on command line (ie. do not prompt for y)
-r[ender] column
: specify rendered quantity on command line (ie. no render prompt) (will take
columns 1 and 2 as x and y if -x and/or -y not specified)
-vec[tor] column
: specify vector plot quantity on command line (ie. no vector prompt)
-c[ontour] column : specify contoured quantity on command line (ie. no contour prompt)
-dev device
: specify plotting device on command line (ie. do not prompt)
convert mode ("splash to X dumpfiles"): splash to ascii : convert SPH data to
ascii file dumpfile.ascii
to binary
: convert SPH data to simple unformatted binary dumpfile.binary:
write(1) time,np,ncols
do i=1,np
write(1) dat(1:ncols),itype
enddo
to stream
: convert SPH data to streamed binary format dumpfile.binarystream:
t,np,ncols,np*(dat(1:ncols),itype) [4,4,4,np*(ncols*4,4)] bytes
to phantom : convert SPH data to binary dump file for PHANTOM to gadget : convert
SPH data to default GADGET snapshot file format
Grid conversion mode ("splash to X dumpfiles"):
splash to grid
: interpolate basic SPH data (density, plus velocity if present in data)
to 2D or 3D grid, write grid data to file (using default output=ascii)
to gridascii
: as above, grid data written in ascii format
to gridascii2
: grid data written in ascii format, all in one file
to gridbinary
: as above, grid data in simple unformatted binary format:
write(unit) nx,ny,nz,ncolumns,time,xmin,xmax,ymin,ymax,zmin,zmax [ 4x4,7x8 bytes ]
write(unit) (((rho(i,j,k),i=1,nx),j=1,ny),k=1,nz) [ 8 bytes each ] write(unit)
(((vx(i,j,k), i=1,nx),j=1,ny),k=1,nz) [ 8 bytes each ] write(unit) (((vy(i,j,k),
i=1,nx),j=1,ny),k=1,nz) [ 8 bytes each ] write(unit)
(((...(i,j,k),i=1,nx),j=1,ny),k=1,nz) [ 8 bytes each ]
to gridstream
: grid data in byte-stream binary format (e.g. for python):
nx,ny,nz,ncolumns,time,xmin,xmax,ymin,ymax,zmin,zmax,rho [ 4,4,4,4,8*7,8*nx*ny*nz ]
allto grid
: as above, interpolating *all* columns to the grid (and output file)
allto gridascii
: as above, with ascii output
allto gridbinary
: as above, with binary output
Analysis mode ("splash calc X dumpfiles") on a sequence of dump files:
splash calc energies
: calculate KE,PE,total energy vs time
output to file called 'energy.out'
calc massaboverho : mass above a series of density thresholds vs time
output to file called 'massaboverho.out'
calc max
: maximum of each column vs. time
output to file called 'maxvals.out'
calc min
: minimum of each column vs. time
output to file called 'minvals.out'
calc diff
: (max - min) of each column vs. time
output to file called 'diffvals.out'
calc amp
: 0.5*(max - min) of each column vs. time
output to file called 'ampvals.out'
calc delta
: 0.5*(max - min)/mean of each column vs. time
output to file called 'deltavals.out'
calc mean
: mean of each column vs. time
output to file called 'meanvals.out'
calc rms
: (mass weighted) root mean square of each column vs. time
output to file called 'rmsvals.out'
calc tracks
: track particle data vs time for selected* particle,
output to file called 'tracks.out'
( * select "xy limits relative to particle" in l)imits menu", or
press "t" in interactive mode, and save settings to splash.defaults )
the above options all produce a small ascii file with one row per input file. the
following option produces a file equivalent in size to one input file (in ascii
format):
calc timeaverage
: time average of *all* entries for every particle
output to file called 'time_average.out'
calc ratio
: ratio of *all* entries in each file compared to first
output to file called 'ratio.out'
unknown command line argument '--version'
SEE ALSO
The full documentation for SPLASH: is maintained as a Texinfo manual. If the info and
SPLASH: programs are properly installed at your site, the command
info SPLASH:
should give you access to the complete manual.
SPLASH: A visualisation tool for SPH data (cJune420200 Daniel Price and contributors SPLASH:(1)