surfsmovie: Generate movie for SURFS particles

In obreschkow/simstar: Reading, processing and visualising astrophysical N-body simulation data

Description

Turns evolving particle data produced by surfsuite into an mp4 movie. Surfsuite is a fortran tool available at https://github.com/obreschkow/surfsuite. Function requires ffmpeg to be available via the terminal.

Usage

surfsmovie(
  file.track,
  radius = NULL,
  aspect = 16/9,
  mp4file,
  fps = 60,
  H0 = 70,
  OmegaM = 0.3,
  OmegaL = 0.7,
  velocity.conversion = 0.00102269032 * (H0/100),
  dt = 0.05,
  keep.frames = TRUE,
  rotation = 1,
  show.time = TRUE,
  text.size = 1,
  ...
)

Arguments

file.track	filename of the particle tracking file produced by calling "surfsuite trackhalo ..." (see README file of surfsuite).
radius	optional value specifying the radius (in simulation units) of the image. For square-movies, this radius is equal to half the horizontal and vertical diameter of the image. Otherwise, it is the geometric mean between these two half-diameters.
aspect	aspect ratio of the movie
mp4file	filename of mp4-movie
fps	frames per second
H0	Hubble constant of the simulation in units of km/s/Mpc
OmegaM	matter density of the universe at z=0
OmegaL	dark energy density of the universe at z=0
velocity.conversion	conversion factor from velocity units in the simulation to length units/Gyr (at z=0). The default corresponds to the standard of Gadget-2.
dt	time interval between frames in Gyr
keep.frames	logical flag specifying whether the individual frame images are to be kept in a temporary folder within the directory specified by paths.
rotation	either an integer (1-6) or a 3-vector, specifying a rotation of the 3D particle positions. In case of an integer: 1=(x,y)-plane, 2=(y,z)-plane, 3=(x,y)-plane, 4=(qmax,qmin)-plane, 5=(qmax,qmid)-plane, 6=(qmid,qmin)-plane, where qmax/qmid/qmin are the eigenvectors of the particle-quadrupole, associated with the maximum/middle/minimum eigenvalues, respectively. If rotation is a vector, its direction specifies the rotation axis and its norm the rotation angle in radians in the positive geometric sense.
show.time	logical flag specifying whether the lookback time is displayed
text.size	scaling factor for the text size used for the lookback time
...	additional arguments to passed to sphview.

Author(s)

Danail Obreschkow

See Also

sphview and surfsview

obreschkow/simstar documentation built on Jan. 29, 2022, 2:16 p.m.