<s>
NASA	B-Language
WorldWind	I-Language
is	O
an	O
open-source	B-Application
(	O
released	O
under	O
the	O
NOSA	B-License
license	O
and	O
the	O
Apache	O
2.0	O
license	O
)	O
virtual	B-Application
globe	I-Application
.	O
</s>
<s>
According	O
to	O
the	O
website	O
(	O
)	O
,	O
"	O
WorldWind	B-Language
is	O
an	O
open	O
source	O
virtual	B-Application
globe	I-Application
API	B-General_Concept
.	O
</s>
<s>
WorldWind	B-Language
allows	O
developers	B-Application
to	O
quickly	O
and	O
easily	O
create	O
interactive	O
visualizations	O
of	O
3D	O
globe	O
,	O
map	O
and	O
geographical	B-General_Concept
information	I-General_Concept
.	O
</s>
<s>
Organizations	O
around	O
the	O
world	O
use	O
WorldWind	B-Language
to	O
monitor	O
weather	O
patterns	O
,	O
visualize	O
cities	O
and	O
terrain	O
,	O
track	O
vehicle	O
movement	O
,	O
analyze	O
geospatial	B-General_Concept
data	I-General_Concept
and	O
educate	O
humanity	O
about	O
the	O
Earth.	O
"	O
</s>
<s>
It	O
was	O
first	O
developed	O
by	O
NASA	O
in	O
2003	O
for	O
use	O
on	O
personal	B-Device
computers	I-Device
and	O
then	O
further	O
developed	O
in	O
concert	O
with	O
the	O
open	O
source	O
community	O
since	O
2004	O
.	O
</s>
<s>
As	O
of	O
2017	O
,	O
a	O
web-based	B-Application
version	O
of	O
WorldWind	B-Language
is	O
available	O
online	O
.	O
</s>
<s>
An	O
Android	B-Application
version	O
is	O
also	O
available	O
.	O
</s>
<s>
The	O
original	O
version	O
relied	O
on	O
.NET	B-Application
Framework	I-Application
,	O
which	O
ran	O
only	O
on	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
The	O
more	O
recent	O
Java	B-Device
version	O
,	O
WorldWind	B-Language
Java	B-Device
,	O
is	O
cross	B-Operating_System
platform	I-Operating_System
,	O
a	O
software	B-Application
development	I-Application
kit	I-Application
(	O
SDK	B-Application
)	O
aimed	O
at	O
developers	B-Application
and	O
,	O
unlike	O
the	O
old	O
.NET	B-Application
version	O
,	O
not	O
a	O
standalone	O
virtual	B-Application
globe	I-Application
application	B-Application
in	O
the	O
style	O
of	O
Google	B-Application
Earth	I-Application
.	O
</s>
<s>
The	O
WorldWind	B-Language
Java	B-Device
version	O
was	O
awarded	O
NASA	O
Software	O
of	O
the	O
Year	O
in	O
November	O
2009	O
.	O
</s>
<s>
The	O
program	O
overlays	O
NASA	O
and	O
USGS	O
satellite	O
imagery	O
,	O
aerial	O
photography	O
,	O
topographic	O
maps	O
,	O
Keyhole	B-Application
Markup	I-Application
Language	I-Application
(	O
KML	B-Application
)	O
and	O
Collada	O
files	O
.	O
</s>
<s>
Though	O
widely	O
available	O
since	O
2003	O
,	O
WorldWind	B-Language
was	O
released	O
with	O
the	O
NASA	B-License
Open	I-License
Source	I-License
Agreement	I-License
license	O
in	O
2004	O
.	O
</s>
<s>
The	O
latest	O
Java-based	O
version	O
(	O
2.1.0	O
)	O
,	O
was	O
released	O
in	O
December	O
2016	O
.	O
</s>
<s>
As	O
of	O
2015	O
a	O
web	B-Application
based	I-Application
version	O
of	O
WorldWind	B-Language
is	O
under	O
development	O
and	O
available	O
online	O
.	O
</s>
<s>
An	O
Android	B-Application
version	O
is	O
also	O
available	O
.	O
</s>
<s>
The	O
previous	O
.NET-based	O
version	O
was	O
an	O
application	B-Application
with	O
an	O
extensive	O
suite	O
of	O
plugins	O
.	O
</s>
<s>
Apart	O
from	O
the	O
Earth	O
there	O
are	O
several	O
worlds	O
:	O
Moon	O
,	O
Mars	B-Application
,	O
Venus	B-Application
,	O
Jupiter	O
(	O
with	O
the	O
four	O
Galilean	O
moons	O
of	O
Io	O
,	O
Ganymede	O
,	O
Europa	O
and	O
Callisto	O
)	O
and	O
SDSS	O
(	O
imagery	O
of	O
stars	O
and	O
galaxies	O
)	O
.	O
</s>
<s>
WorldWind.NET	O
provided	O
the	O
ability	O
to	O
browse	O
maps	O
and	O
geospatial	B-General_Concept
data	I-General_Concept
on	O
the	O
internet	O
using	O
the	O
OGC	O
's	O
WMS	B-Application
servers	O
(	O
version	O
1.4	O
also	O
uses	O
WFS	O
for	O
downloading	B-Application
place	O
names	O
)	O
,	O
import	O
ESRI	O
shapefiles	O
and	O
kml/kmz	B-Application
files	O
.	O
</s>
<s>
This	O
is	O
an	O
example	O
of	O
how	O
WorldWind	B-Language
allows	O
anyone	O
to	O
deliver	O
their	O
data	O
.	O
</s>
<s>
Other	O
features	O
of	O
WorldWind.NET	O
included	O
support	O
for	O
.X	O
(	O
DirectX	B-Application
3D	O
polygon	B-General_Concept
mesh	O
)	O
models	O
and	O
advanced	O
visual	O
effects	O
such	O
as	O
atmospheric	O
scattering	O
or	O
sun	O
shading	O
.	O
</s>
<s>
Microsoft	O
has	O
allowed	O
WorldWind	B-Language
to	O
incorporate	O
Virtual	B-Application
Earth	I-Application
high	O
resolution	O
data	O
for	O
non-commercial	O
use	O
.	O
</s>
<s>
WorldWind	B-Language
uses	O
digital	B-Application
elevation	I-Application
model	I-Application
(	O
DEM	O
)	O
data	O
collected	O
by	O
NASA	O
's	O
Shuttle	B-Algorithm
Radar	I-Algorithm
Topography	I-Algorithm
Mission	I-Algorithm
(	O
SRTM	B-Algorithm
)	O
,	O
National	O
Elevation	O
Dataset	O
(	O
NED	O
)	O
and	O
Advanced	O
Spaceborne	O
Thermal	O
Emission	O
and	O
Reflection	O
Radiometer	O
(	O
ASTER	O
)	O
.	O
</s>
<s>
Many	O
people	O
using	O
the	O
applications	O
are	O
adding	O
their	O
own	O
data	O
and	O
are	O
making	O
them	O
available	O
through	O
various	O
sources	O
,	O
such	O
as	O
the	O
WorldWind	B-Language
Central	O
or	O
blogs	O
mentioned	O
in	O
the	O
link	O
section	O
below	O
.	O
</s>
<s>
All	O
images	O
and	O
movies	O
created	O
with	O
WorldWind	B-Language
using	O
Blue	O
Marble	B-Application
,	O
Landsat	O
,	O
or	O
USGS	O
public	O
domain	O
data	O
can	O
be	O
freely	O
modified	O
,	O
re-distributed	O
,	O
and	O
used	O
on	O
web	O
sites	O
,	O
even	O
for	O
commercial	O
purposes	O
.	O
</s>
<s>
WorldWind	B-Language
can	O
be	O
expanded	O
by	O
using	O
one	O
of	O
many	O
add-ons	O
-	O
small	O
extensions	O
that	O
add	O
new	O
functionality	O
to	O
the	O
program	O
.	O
</s>
<s>
Plugins	O
are	O
small	O
programs	O
written	O
in	O
C#	B-Application
,	O
VB	B-Language
or	O
J#	B-Language
which	O
are	O
loaded	O
and	O
compiled	O
by	O
WorldWind	B-Language
at	O
startup	O
.	O
</s>
<s>
Plug-in	O
developers	B-Application
can	O
add	O
features	O
to	O
WorldWind	B-Language
without	O
changing	O
the	O
program	O
's	O
source	O
code	O
.	O
</s>
<s>
The	O
original	O
recipe	O
for	O
WorldWind	B-Language
was	O
restricted	O
to	O
Windows	O
,	O
relying	O
on	O
the	O
.NET	B-Application
libraries	O
and	O
DirectX	B-Application
.	O
</s>
<s>
A	O
new	O
SDK	B-Application
version	O
has	O
been	O
developed	O
in	O
Java	B-Device
with	O
JOGL	B-Language
referred	O
to	O
as	O
WorldWind	B-Language
Java	B-Device
.	O
</s>
<s>
This	O
new	O
version	O
has	O
an	O
API-centric	O
architecture	O
with	O
functionalities	O
'	O
off-loaded	O
'	O
to	O
modular	O
components	O
,	O
leaving	O
the	O
API	B-General_Concept
at	O
the	O
core	O
.	O
</s>
<s>
This	O
makes	O
WorldWind	B-Language
itself	O
a	O
plugin	O
,	O
so	O
that	O
it	O
can	O
be	O
used	O
as	O
interchangeably	O
as	O
possible	O
(	O
for	O
example	O
via	O
Python	B-Language
)	O
.	O
</s>
<s>
This	O
refactoring	O
exercise	O
allows	O
WorldWind	B-Language
to	O
be	O
accessed	O
via	O
a	O
browser	O
as	O
a	O
Java	B-Device
Applet	O
.	O
</s>
<s>
A	O
preview	O
of	O
the	O
WorldWind	B-Language
Java	B-Device
SDK	B-Application
was	O
released	O
on	O
May	O
11	O
,	O
2007	O
during	O
Sun	O
Microsystem	O
's	O
annual	O
JavaOne	O
conference	O
.	O
</s>
<s>
Since	O
WWj	O
is	O
an	O
SDK	B-Application
,	O
there	O
is	O
no	O
single	O
application	B-Application
;	O
instead	O
there	O
are	O
any	O
number	O
of	O
applications	O
using	O
WWj	O
,	O
each	O
with	O
different	O
functionalities	O
,	O
created	O
by	O
government	O
agencies	O
and	O
commercial	O
developers	B-Application
from	O
around	O
the	O
world	O
.	O
</s>
<s>
These	O
applications	O
include	O
simple	O
virtual	B-Application
globe	I-Application
viewers	O
,	O
satellite	O
tracker	O
,	O
GIS	B-Application
platforms	O
,	O
photo	O
editor	O
,	O
F-16	O
simulator	O
,	O
mission	O
planning	O
software	O
and	O
many	O
more	O
.	O
</s>
<s>
NASA	O
has	O
since	O
released	O
WorldWind	B-Language
Android	B-Application
and	O
Web	O
WorldWind	B-Language
,	O
two	O
SDKs	O
for	O
the	O
Android	B-Application
OS	I-Application
and	O
the	O
JavaScript-based	O
web	B-Application
apps	I-Application
.	O
</s>
<s>
Like	O
WWj	O
,	O
there	O
is	O
no	O
single	O
application	B-Application
for	O
the	O
versions	O
.	O
</s>
<s>
NASA	B-Language
WorldWind	I-Language
SDK	B-Application
Tutorial	O
:	O
This	O
Tutorial	O
was	O
developed	O
by	O
the	O
Institute	O
for	O
Geoinformatics	O
from	O
the	O
University	O
of	O
Münster	O
,	O
Germany	O
.	O
</s>
<s>
It	O
contains	O
tutorials	O
from	O
setting	O
up	O
an	O
Eclipse	O
environment	O
with	O
the	O
WorldWind	B-Language
API	B-General_Concept
to	O
building	O
polygons	B-General_Concept
from	O
Linked	O
Open	O
Data	O
geographic	O
datasets	O
.	O
</s>
<s>
It	O
contains	O
important	O
tips	O
from	O
beginners	O
to	O
advanced	O
developers	B-Application
.	O
</s>
<s>
WorldWind	B-Language
Earth	O
is	O
a	O
community	O
that	O
maintains	O
friendly	O
forks	B-Application
of	O
the	O
three	O
current	O
WorldWind	B-Language
SDK	B-Application
releases	O
.	O
</s>
<s>
They	O
fork	B-Application
provide	O
a	O
release	O
channel	O
for	O
builds	O
based	O
on	O
the	O
latest	O
fixes	O
and	O
features	O
from	O
WebWorldWind	O
's	O
develop	O
branch	O
plus	O
several	O
"	O
cherry-picked	O
"	O
enhancements	O
from	O
the	O
WorldWind	B-Language
community	O
.	O
</s>
<s>
The	O
WorldWindJS	O
project	O
is	O
available	O
on	O
GitHub	B-Application
and	O
releases	O
are	O
available	O
on	O
NPM	B-Language
.	O
</s>
<s>
Geoforge	O
project	O
contains	O
a	O
fork	B-Application
of	O
the	O
NASA	B-Language
WorldWind	I-Language
project	O
.	O
</s>
<s>
Geoforge	O
provides	O
open	B-Application
source	I-Application
software	I-Application
.	O
</s>
<s>
It	O
leads	O
in	O
a	O
platform	O
that	O
manages	O
geosciences	O
data	O
and	O
uses	O
WorldWind	B-Language
features	O
to	O
provide	O
a	O
display	O
of	O
geo-localised	O
geosciences	O
objects	O
.	O
</s>
<s>
Dapple	O
is	O
a	O
fork	B-Application
of	O
the	O
NASA	B-Language
WorldWind	I-Language
project	O
,	O
it	O
is	O
an	O
Open	O
Source	O
project	O
created	O
by	O
developers	B-Application
at	O
Geosoft	O
.	O
</s>
<s>
Dapple	O
is	O
aimed	O
at	O
geoscience	O
professionals	O
,	O
and	O
has	O
features	O
aimed	O
at	O
them	O
,	O
such	O
as	O
easy	O
addition	O
of	O
WMS	B-Application
servers	O
and	O
a	O
simpler	O
UI	B-Application
very	O
similar	O
to	O
Google	B-Application
Earth	I-Application
's	O
.	O
</s>
<s>
SERVIR-VIZ	O
is	O
a	O
customized	O
version	O
of	O
WorldWind	B-Language
developed	O
by	O
IAGT	O
for	O
the	O
SERVIR	O
project	O
.	O
</s>
<s>
WW2D	O
was	O
a	O
cross-platform	B-Operating_System
,	O
free	O
and	O
open-source	B-Application
application	I-Application
based	O
on	O
Java	B-Device
and	O
OpenGL	B-Application
technologies	O
and	O
can	O
be	O
run	O
on	O
Microsoft	B-Application
Windows	I-Application
,	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
Linux	B-Application
(	O
x86	B-Operating_System
and	O
x86-64	B-Device
)	O
and	O
Solaris	B-Application
on	O
SPARC	B-Architecture
.	O
</s>
<s>
WW2D	O
uses	O
images	O
from	O
WorldWind	B-Language
's	O
servers	O
.	O
</s>
<s>
Punt	O
was	O
a	O
fork	B-Application
of	O
the	O
.NET	B-Application
NASA	B-Language
WorldWind	I-Language
project	O
,	O
and	O
was	O
started	O
by	O
two	O
members	O
of	O
the	O
free	O
software	O
community	O
who	O
had	O
made	O
contributions	O
to	O
WorldWind	B-Language
.	O
</s>
<s>
Punt	O
was	O
based	O
on	O
the	O
code	O
in	O
WorldWind	B-Language
1.3.2	O
,	O
but	O
its	O
initial	O
release	O
has	O
features	O
not	O
found	O
in	O
WorldWind	B-Language
1.3.2	O
or	O
1.3.3	O
(	O
such	O
as	O
support	O
for	O
multiple	O
languages	O
)	O
.	O
</s>
<s>
Currently	O
,	O
Punt	O
is	O
only	O
available	O
for	O
Windows	O
,	O
but	O
long-term	O
goals	O
include	O
a	O
desire	O
to	O
move	O
to	O
a	O
cross-platform	B-Operating_System
solution	O
.	O
</s>
<s>
Low	O
resolution	O
Blue	O
Marble	B-Application
datasets	O
are	O
included	O
with	O
the	O
initial	O
download	B-Application
;	O
as	O
a	O
user	O
zooms	O
into	O
certain	O
areas	O
,	O
additional	O
high	O
resolution	O
data	O
is	O
downloaded	B-Application
from	O
the	O
NASA	O
servers	O
.	O
</s>
