<s>
ParaView	B-Language
is	O
an	O
open-source	B-Application
multiple-platform	O
application	B-Application
for	O
interactive	B-General_Concept
,	O
scientific	B-Application
visualization	I-Application
.	O
</s>
<s>
It	O
has	O
a	O
client	B-Operating_System
–	I-Operating_System
server	I-Operating_System
architecture	I-Operating_System
to	O
facilitate	O
remote	O
visualization	O
of	O
datasets	O
,	O
and	O
generates	O
level	O
of	O
detail	O
(	O
LOD	O
)	O
models	O
to	O
maintain	O
interactive	B-General_Concept
frame	O
rates	O
for	O
large	O
datasets	O
.	O
</s>
<s>
It	O
is	O
an	O
application	B-Application
built	O
on	O
top	O
of	O
the	O
Visualization	O
Toolkit	O
(	O
VTK	B-Language
)	O
libraries	O
.	O
</s>
<s>
ParaView	B-Language
is	O
an	O
application	B-Application
designed	O
for	O
data	O
parallelism	O
on	O
shared-memory	B-Operating_System
or	O
distributed-memory	O
multicomputers	O
and	O
clusters	O
.	O
</s>
<s>
ParaView	B-Language
is	O
an	O
open-source	B-Application
,	O
multi-platform	O
data	O
analysis	O
and	O
visualization	O
application	B-Application
.	O
</s>
<s>
ParaView	B-Language
is	O
known	O
and	O
used	O
in	O
many	O
different	O
communities	O
to	O
analyze	O
and	O
visualize	O
scientific	O
data	O
sets	O
.	O
</s>
<s>
The	O
data	O
exploration	O
can	O
be	O
done	O
interactively	O
in	O
3D	O
or	O
programmatically	O
using	O
ParaView	B-Language
's	O
batch	O
processing	O
capabilities	O
.	O
</s>
<s>
ParaView	B-Language
was	O
developed	O
to	O
analyze	O
extremely	O
large	O
datasets	O
using	O
distributed	O
memory	O
computing	O
resources	O
.	O
</s>
<s>
It	O
can	O
be	O
run	O
on	O
supercomputers	O
to	O
analyze	O
datasets	O
of	O
terascale	B-General_Concept
as	O
well	O
as	O
on	O
laptops	O
for	O
smaller	O
data	O
.	O
</s>
<s>
ParaView	B-Language
is	O
an	O
application	B-Application
framework	O
as	O
well	O
as	O
a	O
turn-key	O
application	B-Application
.	O
</s>
<s>
The	O
ParaView	B-Language
code	O
base	O
is	O
designed	O
in	O
such	O
a	O
way	O
that	O
all	O
of	O
its	O
components	O
can	O
be	O
reused	O
to	O
quickly	O
develop	O
vertical	O
applications	O
.	O
</s>
<s>
This	O
flexibility	O
allows	O
ParaView	B-Language
developers	O
to	O
quickly	O
develop	O
applications	O
that	O
have	O
specific	O
functionality	O
for	O
a	O
specific	O
problem	O
domain	O
.	O
</s>
<s>
ParaView	B-Language
runs	O
on	O
distributed	O
and	O
shared	B-Operating_System
memory	I-Operating_System
parallel	O
and	O
single	O
processor	O
systems	O
.	O
</s>
<s>
It	O
has	O
been	O
successfully	O
tested	O
on	O
Windows	O
,	O
macOS	B-Application
,	O
Linux	B-Application
,	O
IBM	O
Blue	O
Gene	O
,	O
Cray	O
Xt3	O
and	O
various	O
Unix	B-Device
workstations	I-Device
,	O
clusters	O
and	O
supercomputers	O
.	O
</s>
<s>
Under	O
the	O
hood	O
,	O
ParaView	B-Language
uses	O
Visualization	O
Toolkit	O
(	O
VTK	B-Language
)	O
as	O
the	O
data	O
processing	O
and	O
rendering	O
engine	O
and	O
has	O
a	O
user	O
interface	O
written	O
using	O
Qt	O
.	O
</s>
<s>
The	O
goals	O
of	O
the	O
ParaView	B-Language
team	O
include	O
the	O
following	O
:	O
</s>
<s>
Develop	O
an	O
open-source	B-Application
,	O
multi-platform	O
visualization	O
application	B-Application
.	O
</s>
<s>
The	O
ParaView	B-Language
project	O
started	O
in	O
2000	O
as	O
a	O
collaborative	O
effort	O
between	O
Kitware	O
,	O
Inc	O
.	O
and	O
Los	O
Alamos	O
National	O
Laboratory	O
through	O
funding	O
provided	O
by	O
the	O
US	O
Department	O
of	O
Energy	O
ASCI	O
Views	O
program	O
.	O
</s>
<s>
Independent	O
of	O
ParaView	B-Language
,	O
Kitware	O
developed	O
a	O
web-based	O
visualization	O
system	O
in	O
December	O
2001	O
.	O
</s>
<s>
This	O
project	O
was	O
funded	O
by	O
Phase	O
I	O
and	O
II	O
SBIRs	O
from	O
the	O
US	O
Army	O
Research	O
Laboratory	O
and	O
eventually	O
became	O
the	O
ParaView	B-Language
Enterprise	O
Edition	O
.	O
</s>
<s>
PVEE	O
significantly	O
contributed	O
to	O
the	O
development	O
of	O
ParaView	B-Language
's	O
client/server	B-Operating_System
architecture	I-Operating_System
.	O
</s>
<s>
In	O
September	O
2005	O
,	O
Kitware	O
,	O
Sandia	O
National	O
Labs	O
and	O
CSimSoft	O
(	O
now	O
Coreform	O
LLC	O
)	O
started	O
the	O
development	O
of	O
ParaView	B-Language
3.0	O
.	O
</s>
<s>
ParaView	B-Language
3.0	O
was	O
released	O
in	O
May	O
2007	O
.	O
</s>
<s>
In	O
June	O
2013	O
,	O
ParaView	B-Language
4.0	O
was	O
released	O
,	O
this	O
version	O
was	O
based	O
on	O
VTK	B-Language
6.0	O
.	O
</s>
<s>
Advanced	O
data	O
processing	O
can	O
be	O
done	O
using	O
the	O
Python	B-Language
Programmable	O
filter	O
with	O
VTK	B-Language
,	O
NumPy	O
,	O
SciPy	O
and	O
other	O
Python	B-Language
modules	O
.	O
</s>
<s>
Data	O
can	O
be	O
inspected	O
quantitatively	O
using	O
the	O
powerful	O
selection	O
mechanism	O
and	O
the	O
spreadsheet	O
view	O
:	O
The	O
selection	O
mechanism	O
allows	O
the	O
user	O
to	O
focus	O
on	O
an	O
important	O
subset	O
of	O
a	O
dataset	O
using	O
either	O
interactive	B-General_Concept
selection	O
by	O
picking	O
a	O
point	O
or	O
selecting	O
a	O
rectangular	O
area	O
as	O
well	O
quantitative	O
selection	O
mechanisms	O
.	O
</s>
<s>
ParaView	B-Language
provides	O
many	O
other	O
data	O
sources	O
and	O
filters	O
by	O
default	O
.	O
</s>
<s>
Any	O
VTK	B-Language
source	O
or	O
filter	O
can	O
be	O
added	O
by	O
providing	O
a	O
simple	O
XML	B-Protocol
description	O
.	O
</s>
<s>
Supports	O
a	O
variety	O
of	O
file	O
formats	O
including	O
:	O
VTK	B-Language
(	O
new	O
and	O
legacy	O
,	O
all	O
types	O
including	O
parallel	O
,	O
ASCII	O
and	O
binary	O
,	O
can	O
be	O
read	O
and	O
written	O
)	O
.	O
</s>
<s>
CGNS	O
(	O
support	O
for	O
multiple	O
blocks	O
,	O
unsteady	O
solutions	O
and	O
mesh	O
deformation	O
,	O
based	O
on	O
HDF5	B-Application
low	O
level	O
format	O
)	O
(	O
read	O
only	O
)	O
.	O
</s>
<s>
Various	O
polygonal	O
file	O
formats	O
including	O
STL	O
and	O
BYU	O
(	O
by	O
default	O
,	O
read	O
only	O
,	O
other	O
VTK	B-Language
writers	O
can	O
be	O
added	O
by	O
writing	O
XML	B-Protocol
description	O
)	O
.	O
</s>
<s>
Any	O
VTK	B-Language
source	O
or	O
filter	O
can	O
be	O
added	O
by	O
providing	O
a	O
simple	O
XML	B-Protocol
description	O
(	O
VTK	B-Language
provides	O
many	O
readers	O
)	O
.	O
</s>
<s>
Since	O
ParaView	B-Language
is	O
open	O
source	O
,	O
the	O
user	O
can	O
provide	O
their	O
own	O
readers	O
and	O
writers	O
.	O
</s>
<s>
Intuitive	O
and	O
flexible	O
interface	O
based	O
on	O
the	O
Qt	O
application	B-Application
framework	O
.	O
</s>
<s>
Maintains	O
interactive	B-General_Concept
frame	O
rates	O
even	O
when	O
working	O
with	O
large	O
data	O
through	O
the	O
use	O
of	O
level-of-detail	O
(	O
LOD	O
)	O
models	O
.	O
</s>
<s>
Runs	O
parallel	O
on	O
distributed	O
and	O
shared	B-Operating_System
memory	I-Operating_System
systems	O
using	O
MPI	O
.	O
</s>
<s>
These	O
include	O
workstation	B-Device
clusters	O
,	O
visualization	O
systems	O
,	O
large	O
servers	O
,	O
supercomputers	O
,	O
etc	O
.	O
</s>
<s>
The	O
user	O
interface	O
is	O
run	O
on	O
separate	O
computer	O
using	O
the	O
client/server	B-Operating_System
mode	O
.	O
</s>
<s>
ParaView	B-Language
uses	O
the	O
data	O
parallel	O
model	O
in	O
which	O
the	O
data	O
is	O
broken	O
into	O
pieces	O
to	O
be	O
processed	O
by	O
different	O
processes	O
.	O
</s>
<s>
ParaView	B-Language
also	O
supports	O
ghost	O
levels	O
used	O
to	O
produce	O
piece	O
invariant	O
results	O
.	O
</s>
<s>
ParaView	B-Language
is	O
fully	O
scriptable	O
using	O
the	O
simple	O
but	O
powerful	O
Python	B-Language
language	I-Language
.	O
</s>
<s>
ParaView	B-Language
's	O
data	O
engine	O
,	O
called	O
server	O
manager	O
,	O
is	O
fully	O
accessible	O
through	O
the	O
Python	B-Language
interface	O
.	O
</s>
<s>
All	O
changes	O
made	O
to	O
the	O
engine	O
through	O
Python	B-Language
are	O
automatically	O
reflected	O
to	O
the	O
user	O
interface	O
.	O
</s>
<s>
ParaView	B-Language
can	O
be	O
run	O
as	O
a	O
batch	O
application	B-Application
using	O
the	O
Python	B-Language
interface	O
.	O
</s>
<s>
Distributed	O
data	O
processing	O
can	O
be	O
done	O
in	O
Python	B-Language
using	O
the	O
Python	B-Language
Programmable	O
Filter	O
.	O
</s>
<s>
Additional	O
modules	O
can	O
be	O
added	O
by	O
either	O
writing	O
an	O
XML	B-Protocol
description	O
of	O
the	O
interface	O
or	O
by	O
writing	O
C++	B-Language
classes	O
.	O
</s>
<s>
The	O
XML	B-Protocol
interface	O
allows	O
users/developers	O
to	O
add	O
their	O
own	O
VTK	B-Language
filters	O
to	O
ParaView	B-Language
without	O
writing	O
any	O
special	O
code	O
and/or	O
re-compiling	O
.	O
</s>
<s>
In	O
2005	O
Sandia	O
National	O
Laboratories	O
,	O
Nvidia	O
and	O
Kitware	O
had	O
multiple	O
press	O
releases	O
on	O
the	O
scalable	O
visualization	O
and	O
rendering	O
work	O
done	O
on	O
ParaView	B-Language
.	O
</s>
<s>
The	O
releases	O
announced	O
breakthroughs	O
in	O
scalable	O
performance	O
attaining	O
rendering	O
rates	O
of	O
over	O
8	O
billion	O
polygons	O
per	O
second	O
using	O
ParaView	B-Language
.	O
</s>
<s>
ParaView	B-Language
is	O
used	O
as	O
the	O
visualization	O
platform	O
for	O
the	O
Modeling	O
software	O
OpenFOAM	B-Application
.	O
</s>
<s>
The	O
at	O
Oak	O
Ridge	O
National	O
Laboratory	O
uses	O
ParaView	B-Language
for	O
visualizing	O
large	O
datasets	O
.	O
</s>
<s>
SimScale	B-Algorithm
uses	O
ParaView	B-Language
as	O
an	O
alternative	O
to	O
its	O
integrated	O
post-processing	O
environment	O
and	O
is	O
offering	O
several	O
tutorials	O
and	O
webinars	O
on	O
post-processing	O
with	O
ParaView	B-Language
.	O
</s>
<s>
The	O
FEATool	B-Algorithm
Multiphysics	I-Algorithm
simulation	O
toolbox	O
features	O
one-click	O
export	O
to	O
ParaView	B-Language
Glance	O
interactive	B-General_Concept
web	O
plots	O
.	O
</s>
