Data files
The following data directories include examples and a little
information about various file formats I have encountered.
-
3ds,
a data directory which
contains examples of 3DS (3D-Studio) files.
-
amiramesh,
a data directory which
contains examples of Amira Mesh files, the general purpose
file format for the Amira graphics package.
-
ascii_art_grayscale,
a data directory which
contains examples of grayscale ASCII Art files,
in which images are created using printable characters.
-
ase,
a data directory which
contains examples of ASE files.
-
avi,
a data directory which
contains examples of AVI files. "AVI" stands for the
"Audio/Visual Interleaved" format, and is a common animation format.
-
bamg,
a data directory which
contains examples of the geometry files that can be input to
the BAMG meshing program.
-
bezier_surface,
a data directory which
contains examples of bezier_surface files,
a simple format comprising two files,
suitable for storing the definition of a Bezier surface
used in 3D graphics;
-
bmp,
a data directory which
contains examples of BMP files. The BMP file is a bitmap
image format developed by Microsoft and commonly used in the Windows
operating system for storing icons.
-
byu,
a data directory which
contains some examples of BYU files. More specifically, we
are interested in Movie.BYU surface geometry files.
-
cc,
a data directory which
contains examples of sparse matrices stored as
Compressed Column (CC) files,
a three-file format;
-
cdl,
a data directory which
contains examples of CDL files,
a text version of NETCDF files created by the NCDUMP program;
-
ccgmb,
a data directory which
contains examples of binary CGM files,
a 2D image file format
created using the binary Computer Graphics Metafile format.
-
cnf,
a data directory which
contains examples of CNF files,
the DIMACS CNF file format, used to define examples
for the satisfiability problem in conjunctive normal form;
-
cc,
a data directory which
contains examples of sparse matrices stored as
Compressed Row (CR) files,
a three-file format;
-
csv,
a data directory which
contains examples of CSV files,
a flat file format of Comma Separated Values.
-
dlap,
a data directory which
contains examples of DLAP files,
a sparse matrix file format used by DLAP;
-
dolfin_xml
a data directory which
contains examples of XML files, which
describe 3D finite element meshes
as used by DOLFIN and FENICS.
-
dot,
a data directory which
contains examples of DOT files.
-
dsp,
a data directory which
contains examples of DSP files,
a sparse matrix file format, storing just
(I,J,A(I,J)), and using one-based indexing.
-
dxf,
a data directory which
contains examples of DXF files.
-
eps,
a data directory which
contains examples of EPS files,
Encapsulated PostScript file format for 2D graphics;
-
fd1d,
a data directory which
contains examples of 1D FD files, two text files that can be used to
describe many finite difference models;
-
fd2d,
a data directory which
contains examples of 2D FD files, two text files that can be used to describe
many finite difference models;
-
fd3d,
a data directory which
contains examples of 3D FD files, two text files that can be used to
describe many finite difference models;
-
fem1d,
a data directory of examples of 1D FEM files,
a set of three text files that can be used to describe
many finite element models;
-
fem2d,
a data directory of examples of 2D FEM files,
a set of three text files that can be used to describe
many finite element models;
-
fem3d,
a data directory of examples of 3D FEM files,
a set of three text files that can be used to describe
many finite element models;
-
fig,
a data directory which
contains examples of FIG files;
-
fit,
a data directory which
contains examples of FIT files, which
are commonly used by NASA to store and transfer astronomical and
weather images.
-
freefem++_mesh,
a data directory which
contains examples of the mesh files created by the FreeFem++ program,
which use the extension ".msh".
-
gif,
a data directory of examples of GIF files,
a 2D graphics file format;
-
gif_animation,
a data directory which
contains examples of GIF_ANIMATION files,
a 2D graphics animation format;
-
gmod,
a data directory which
contains examples of GMOD files;
-
gpl,
a data directory which
contains examples of GPL files, which
use a graphics file format used by GNUPLOT;
-
graph_representation,
a data directory of examples of ways of representing abstract
mathematical graphs
-
grf,
a data directory which
contains examples of GRF files,
an abstract graph file format, 2D graphics;
-
grf1,
a data directory which
contains examples of GRF1 files;
-
grf2,
a data directory which
contains examples of GRF2 files;
-
grf2s,
a data directory which
contains examples of GRF2S files;
-
hb,
a data directory which
contains examples of HB files,
the Harwell Boeing sparse matrix file format;
-
hdf,
a data directory which
contains examples of HDF files,
a general scientific data file format;
-
hdf4,
a data directory which
contains examples of HDF4 files,
a general scientific data file format;
-
hdf,
a data directory which
contains examples of HDF5 files,
a general scientific data file format;
-
hex_mesh,
a data directory which
contains examples of HEX_MESH files, which
define a planar mesh of hexagons.
-
hrc,
a data directory which
contains examples of HRC files, which
are SoftImage HRC ("hierarchical)" files.
-
ice,
a data directory which
contains examples of ICE files, which
define a NETCDF file format for icesheet grids.
-
iges,
a data directory which
contains examples of IGES files.
-
iv,
a data directory which
contains examples of IV or INVENTOR files, which
are a 3D graphics file format.
-
jpg,
a data directory which
contains examples of JPG or JPEG files, which
is a file format for high quality 2D graphics;
-
mat,
a data directory which
contains examples of MAT files,
a data storage format used by MATLAB.
-
medit,
a data directory which
contains examples of MEDIT files, which
can be used by the MEDIT program
to define a 2D or 3D mesh for use by the finite element method (FEM),
using triangles, quadrilaterals, tetrahedrons or hexahedrons.
-
mesh,
a data directory which
contains examples of MESH files, which
define a finite element mesh.
-
meshlab,
a data directory of examples of files
that can be used by the MESHLAB program.
-
met,
a data directory of examples of MET files,
a graphics file format used by the DISLIN plotting package
of Helmut Michels.
-
metis_graph,
a data directory of examples of METIS GRAPH files,
the format for graphs to be read by
METIS,
which can partition a graph;
-
metis_mesh,
a data directory of examples of METIS MESH files,
the format for finite element meshes to be read by
METIS,
which can partition the elements of such a mesh;
-
mm,
a data directory of examples of MM files,
the Matrix Market Sparse Matrix File Format;
-
mov,
a data directory which
contains examples of MOV files,
a graphics animation format;
-
mp4,
a data directory which
contains examples of MP4 files,
a video file format.
-
mpg,
a data directory which
contains examples of MPG files,
a video file format.
-
msh,
a data directory of examples of MSH files,
the native 3D mesh format used by gmsh.
-
mtl,
a data directory which
contains examples of MTL files,
a format used to describe materials used in graphics textures.
-
mtv
a data directory which
contains examples of MTV files,
a graphics format used by PLOTMTV.
-
netcdf
a data directory which
contains examples of netCDF files,
a format for the interchange of scientific data.
-
netcdf_gis
a data directory which
contains examples of GIS files, stored using the NETCDF format.
-
netcdf_glimmer
a data directory which
contains examples of GLIMMER data files, stored using the NETCDF format.
-
netcdf_mpas
a data directory which
contains examples of MPAS grid files, stored using the NETCDF format.
-
obj,
a data directory of examples of OBJ files,
a Wavefront file format for 3D graphics;
-
off,
a data directory of examples of OFF files,
a file format for 3D graphics;
-
oogl,
a data directory of examples of OOGL files,
a file format for 3D graphics;
-
p3d,
a data directory of examples of P3D files,
the Pittsburgh 3D graphics file format.
-
pam,
a data directory of examples of PAM files,
the Portable Any Map file format.
-
pbma,
a data directory of examples of ASCII PBM files,
ASCII Portable Bit Map 2D graphics, black and white;
-
pbmb,
a data directory which
contains examples of binary PBM files, which
are binary Portable Bit Map 2D graphics, black and white;
-
pcd,
a data directory which
contains examples of PCD files, which
is the Point Cloud Data format, developed in particular
for the Point Cloud Library (PCL).
-
pcx,
a data directory which
contains examples of PCX files, which
is a format originally developed for images created by the
PC Paintbrush program.
-
pdb,
a data directory of examples of PDB files,
a file format used by the Protein Database;
-
pdf,
a data directory of examples of PDF files,
the Portable Document Format, 2D text and graphics;
-
pgh_mri,
a data directory of examples of PGH MRI files,
a format for storing brain scan data gathered by
magnetic resonance imaging;
-
pgma,
a data directory of examples of ASCII PGM files,
ASCII Portable Gray Map, 2D graphics;
-
pgmb,
a data directory of examples of binary PGM files,
binary Portable Gray Map, 2D graphics;
-
plc,
a data directory of examples of PLC files,
used to describe a piecewise linear complex, a surface that
bounds a 3D region that is to be meshed.
-
plot3d,
a data directory of examples of PLOT3D files,
a variety of formats used by the PLOT3D program;
-
ply,
a data directory of examples of PLY files,
a format for objects defined as a collection of
polygons, 3D graphics;
-
png,
a data directory of examples of PNG files,
Portable Network Graphics, 2D graphics;
-
pnm,
a data directory of examples of PNM files,
known as the "Portable Any-Map" format.
-
poly,
a data directory of examples of POLY files,
a 2D format used by triangle for Planar Straight Line Graphs;
-
poly_3d,
a data directory of examples of 3D POLY files,
a 3D format used by tetgen for a Piecewise Linear Complex;
-
polygonal_surface,
a data directory of examples of POLYGONAL SURFACE files,
a simple file format comprising two files,
suitable for storing the definition of a surface that is made
up of a set of polygons of a fixed order, 3D graphics;
-
pov,
a data directory of examples of POV files,
Persistence of Vision format, 3D graphics;
-
ppma,
a data directory of examples of ASCII PPM files,
ASCII Portable Pixel Map, 2D graphics, color;
-
ppmb,
a data directory of examples of binary PPM files,
binary Portable Pixel Map, 2D graphics, color;
-
ps,
a data directory of examples of PS files,
PostScript files, 2D graphics;
-
quad_mesh,
a data directory of examples of QUAD_MESH files,
a quadrilateral mesh in 2D.
-
quad_mesh_order1,
a data directory of examples of QUAD_MESH files,
a quadrilateral mesh in 2D, with an associated data value that is
constant over each element of the mesh;
-
quad_surface,
a data directory of examples of QUAD_SURFACE files,
a quadrilateral mesh in 3D, used to define a surface.
-
rb,
a data directory which
contains examples of RB files, which
use the Rutherford-Boeing sparse matrix file format.
-
rgb,
a data directory which
contains examples of RGB files, which
were used by Silicon Graphics Incorporated to store textures.
-
smf,
a data directory which
contains examples of SMF files, which
was used by Michael Garland as an input and output format for his
surface simplifying program QSLIM.
-
sparse_ellpack,
a data directory which
contains examples of SPARSE_ELLPACK files,
a format used by ELLPACK for sparse matrices.
-
st,
a data directory of examples of Sparse Triplet (ST) files,
a sparse matrix file format,
storing just (I,J,A(I,J)), and using zero-based indexing.
-
stla,
a data directory which
contains examples of ASCII STL files, which
are ASCII Stereolithography files for 3D graphics;
-
stlb,
a data directory of examples of binary STL files,
binary Stereolithography files, 3D graphics;
-
svg,
a data directory of examples of SVG files,
Scalable Vector Graphics, 2D graphics, that can be included in an HTML file;
-
table,
a data directory which
contains examples of TABLE files, which
store doubly indexed data.
-
tec,
a data directory which
contains examples of TEC files, which
store 2D or 3D graphics with attributes;
-
tet_mesh_tet_neighbors,
a data directory which
contains examples of TET_MESH_TET_NEIGHBOR files,
description of a format for tetrahedron
adjacency information in a tetrahedral mesh of 3D points;
-
tga,
a data directory which
contains examples of TGA or TARGA files,
a bit map graphics file format.
-
tif,
a data directory which
contains examples of TIF or TIFF files,
a format for high resolution photographs and images.
-
tri_surface,
a data directory which
contains examples of TRI_SURFACE files,
a 3D surface defined by a collection of triangles.
-
tria,
a data directory which
contains examples of TRIA files, which
is an ASCII file format for the rendering of 3D surfaces
as a collection of triangles.
-
triangle_files,
a data directory of examples of files used by the
triangle and showme programs.
-
triangulation_order3,
a data directory of examples of TRIANGULATION_ORDER3 files,
description of a linear triangulation
of a set of 2D points, using a pair of files to list the node
coordinates and the 3 nodes that make up each triangle;
-
triangulation_order4,
a data directory of examples of TRIANGULATION_ORDER4 files,
description of a triangulation
of a set of 2D points, using a pair of files to list the node
coordinates and the 4 nodes that define each triangle
(3 vertices and the centroid);
-
triangulation_order6,
a data directory of examples of TRIANGULATION_ORDER6 files,
a description of a quadratic triangulation
of a set of 2D points, using a pair of files to list the node
coordinates and the 6 nodes that make up each triangle; Six-node
triangles are used when a higher degree approximation is desired;
they may also be used as isoparametric elements that model curved
boundaries;
-
trib,
a data directory which
contains examples of TRIB files,
a binary file format for the rendering of 3D surfaces
as a collection of triangles.
-
ts,
a data directory of examples of TS or THREESCRIPT files, which
is a 3D graphics file format once used by Mathematica.
-
txt,
a data directory which
contains examples of TXT files, which
are simple text files.
-
ucd,
a data directory which
contains examples of UCD files, which
are a graphics file format used by AVS;
-
vla,
a data directory which
contains examples of VLA files, which
are used by the Evans and Sutherland Digistar II Planetarium
projection system.
-
vtk,
a data directory which
contains examples of "legacy" (old style) VTK files,
a file format used by the Visualization Toolkit;
-
vts,
a data directory which
contains examples of VTS files, a file format used by the Visualization Toolkit,
which contains information associated with a curvilinear or structured grid,
which can be displayed by the paraview program;
-
vtu,
(archived),
a data directory which contains
examples of XML-based VTU files, which
are a file format used by the Visualization Toolkit for unstructured grid data;
-
vu,
a data directory which
contains examples of VU files, which
are a file format used by the VU program;
-
wav,
a data directory which
contains examples of WAV files, which
store audio information.
-
wrl_1,
a data directory which
contains examples of WRL_1 files, which
is version 1.0 of a format known as VRML
(Virtual Reality Modeling Language).
-
wrl_2,
a data directory which
contains examples of WRL_2 files, which
is version 2.0 of a format known as VRML
(Virtual Reality Modeling Language).
-
x3d,
a data directory of examples of X3D files.
-
xbm,
a data directory which
contains examples of XBM files, which
is a bitmap file format used by X Windows.
-
xgl,
a data directory which
contains examples of XGL files, which
use XML to store 3D graphics information as created by OpenGL.
-
xml,
a data directory which
contains examples of XML files, which
are a standard general datafile format.
-
xpm,
a data directory which
contains examples of XPM files, which
is a pixel format used by X Windows.
-
xwd,
a data directory which
contains examples of XWD files, which
are X Window Dump files.
-
xy,
a data directory which
contains examples of XY files, which
record points in 2D space.
-
xyf,
a data directory which
contains examples of XYF files, which
records points and faces in 2D space.
-
xyl,
a data directory which
contains examples of XYL files, which
records points and lines in 2D space.
-
xyz,
a data directory which
contains examples of XYZ files, which
record points in 3D space.
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Last revised on 17 April 2018.