<s>
Olex	O
and	O
Olex2	B-Application
are	O
versatile	O
software	B-Application
for	O
crystallographic	O
research	O
.	O
</s>
<s>
Olex	O
used	O
to	O
be	O
a	O
research	O
project	O
developed	O
during	O
PhD	O
to	O
implement	O
topological	B-Architecture
(	O
as	O
connectivity	O
)	O
analysis	O
of	O
polymeric	O
chemical	O
structures	O
and	O
still	O
is	O
widely	O
used	O
around	O
the	O
world	O
.	O
</s>
<s>
Olex2	B-Application
is	O
an	O
open	B-License
source	I-License
project	O
with	O
the	O
C++	B-Language
code	I-Language
portable	O
to	O
Windows	B-Application
,	O
Mac	B-Application
and	O
Linux	B-Application
.	O
</s>
<s>
It	O
only	O
runs	O
on	O
Windows	B-Application
systems	O
and	O
source	O
code	O
is	O
available	O
only	O
on	O
request	O
.	O
</s>
<s>
It	O
allows	O
packing	O
the	O
structure	O
,	O
constructing	O
the	O
topological	B-Architecture
network	O
and	O
the	O
evaluation	O
of	O
the	O
networks	O
Schläfli	O
and	O
vertex	O
symbols	O
and	O
to	O
produce	O
raster	B-Algorithm
pictures	O
of	O
the	O
model	O
visible	O
on	O
screen	O
.	O
</s>
<s>
This	O
kind	O
of	O
the	O
topological	B-Architecture
network	O
analysis	O
is	O
normally	O
done	O
to	O
find	O
relevance	O
of	O
considered	O
structures	O
and	O
possibly	O
to	O
predict	O
physical	O
properties	O
of	O
the	O
investigated	O
material	O
.	O
</s>
<s>
Olex2	B-Application
is	O
a	O
relatively	O
new	O
,	O
open	B-License
source	I-License
software	B-Application
with	O
a	O
BSD	B-Operating_System
licence	I-Operating_System
which	O
provides	O
tools	O
from	O
the	O
crystallographic	O
structure	O
solution	O
to	O
the	O
final	O
report	O
preparation	O
.	O
</s>
<s>
Olex2	B-Application
platform	O
independent	O
GUI	O
is	O
provided	O
by	O
wxWidgets	O
.	O
</s>
<s>
Olex2	B-Application
has	O
an	O
extended	O
HTML	B-Language
based	O
interface	O
,	O
enhanced	O
by	O
Pillow	O
and	O
OpenGL	B-Application
graphics	O
.	O
</s>
<s>
Olex2	B-Application
provides	O
numerous	O
tools	O
for	O
the	O
structure	O
analysis	O
and	O
publication	O
,	O
including	O
Fourier	B-Algorithm
maps	O
and	O
voids	O
calculation	O
and	O
visualisation	O
,	O
space	O
group	O
determination	O
,	O
calculation	O
of	O
esd	O
's	O
for	O
almost	O
any	O
possible	O
geometrical	O
parameters	O
,	O
CIF	B-Application
translation	O
to	O
HTML	B-Language
and	O
other	O
documents	O
,	O
hydrogen	O
atom	O
placement	O
and	O
many	O
others	O
.	O
</s>
<s>
Olex2	B-Application
provides	O
the	O
final	O
picture	O
output	O
as	O
raster	B-Algorithm
images	I-Algorithm
or	O
PostScript	B-Language
,	O
Ortep-like	O
or	O
POV-Ray	B-Application
output	O
.	O
</s>
<s>
The	B-Application
software	I-Application
is	O
provided	O
as	O
pre-build	O
binaries	O
for	O
Windows	B-Application
,	O
Mac	B-Application
and	O
Linux	B-Application
as	O
well	O
as	O
in	O
the	O
source	O
code	O
form	O
.	O
</s>
<s>
Several	O
build	O
scripts	O
(	O
SCons	B-Application
,	O
CMake	B-Language
and	O
make	B-Application
)	O
are	O
provided	O
to	O
help	O
with	O
the	O
Olex2	B-Application
development	O
-	O
but	O
only	O
SCons	B-Application
is	O
supported	O
throughout	O
and	O
used	O
for	O
each	O
release	O
update	O
and	O
any	O
problems	O
have	O
to	O
be	O
addressed	O
to	O
the	O
supporters	O
.	O
</s>
<s>
Olex2	B-Application
is	O
now	O
supported	O
by	O
OlexSys	O
Ltd	O
.	O
</s>
<s>
As	O
a	O
GUI	O
Olex2	B-Application
is	O
built	O
from	O
two	O
components	O
-	O
the	O
Olex2	B-Application
core	O
,	O
written	O
in	O
C++	B-Language
and	O
exposing	O
underlying	O
model	O
to	O
the	O
GUI	O
,	O
mostly	O
based	O
on	O
the	O
Python	O
code	O
.	O
</s>
<s>
This	O
segregation	O
allows	O
extending	O
Olex2	B-Application
with	O
custom	O
scripts	O
and	O
exploiting	O
its	O
functionality	O
by	O
the	O
user	O
at	O
various	O
levels	O
-	O
miller	O
index	O
operations	O
,	O
file	O
manipulations	O
and	O
many	O
others	O
.	O
</s>
<s>
Olex2	B-Application
provides	O
a	O
set	O
of	O
commercial	O
extensions	O
:	O
</s>
