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#LyX 1.5.1 created this file. For more info see http://www.lyx.org/
\lyxformat 276
\begin_document
\begin_header
\textclass beamer
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% Theme configuration.  I've basically built a custom theme out of 
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%%%%% HACK %%%%%
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%%%%% /HACK %%%%%
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\author "" 
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\end_header

\begin_body

\begin_layout Standard
\begin_inset Note Note
status open

\begin_layout Standard
Some things to fix in a future version:
\end_layout

\begin_layout Standard
- trim a bit of time
\end_layout

\begin_layout Standard
- add more about ipython and my own python work, reduce that of others
\end_layout

\begin_layout Standard
- add a final python pros/cons, esp.
 the cons part.
 It will make things more balanced.
\end_layout

\begin_layout Standard
- the PDE part repeats a bit the 'python benefits' which were already pounded
 on.
\end_layout

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\backslash
vspace*{-5mm}
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\end_layout

\begin_layout Title
PyDAP
\begin_inset OptArg
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\begin_layout Standard
PyDAP
\end_layout

\end_inset


\end_layout

\begin_layout Subtitle
OpenDAP client and server in Python
\end_layout

\begin_layout Author
Thanks and Credits:
\newline
Rob de Almeida
\newline

\family typewriter
\size scriptsize
<rob@pydap.org>
\family default
\size default

\newline

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RdA
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This is used by the 'split' footline theme on the left side of the page
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\backslash
vspace{5mm}
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\begin_layout Institute
INPE - Brazilian Space Agency
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\begin_layout Institute
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status open

\begin_layout Standard
- Use the 
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inst command only if there are several affiliations.
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\begin_layout Standard
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INPE
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optional, but mostly needed
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\backslash
vspace{5mm}
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\begin_layout Date
NCAR, Boulder
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Dec 7, 2007
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NCAR, 12/7/07
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If you have a file called "institution-logo-filename.xxx", where xxx is a
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The following causes the table of contents to be shown at the beginning
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frametitle{Outline}
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tableofcontents[currentsection]
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}
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}
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If you wish to uncover everything in a step-wise fashion, uncomment the
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%
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beamerdefaultoverlayspecification{<+->}
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\end_layout

\begin_layout BeginFrame
OpenDAP: The Data Access Protocol
\end_layout

\begin_layout Itemize
You all know OpenDAP better than me!
\end_layout

\begin_layout Itemize
OPeNDAP: Open-source Project for a Network Data Access Protocol
\end_layout

\begin_layout Itemize
Expose a dataset over the network, in a self-describing way:
\end_layout

\begin_deeper
\begin_layout Itemize
http://server/dataset: base URL
\end_layout

\begin_layout Itemize
http://server/dataset.dds: 
\color blue
structure
\end_layout

\begin_layout Itemize
http://server/dataset.das:
\color blue
 attributes
\end_layout

\begin_layout Itemize
http://server/dataset.dods: 
\color blue
actual data
\end_layout

\end_deeper
\begin_layout BeginFrame
PyDAP 2.x
\end_layout

\begin_layout Itemize
Pure Python, from scratch, written by Rob de Almeida based on DAP 2.0 spec
 draft.
\end_layout

\begin_layout Itemize
Developed as Google Summer of Code 2005 project.
\end_layout

\begin_layout Itemize
Contains its own XDR library.
\end_layout

\begin_layout Itemize
Server based on WSGI specification (common web services standard).
\end_layout

\begin_layout Itemize
Fully buffered server, handles infinite datasets.
\end_layout

\begin_layout Itemize
Approx.
 3k LOC for client and server.
\end_layout

\begin_layout BeginFrame
Our simple Yahoo CSV data from this morning
\end_layout

\begin_layout Standard

\color blue
http://127.0.0.1:8080/sample.csv.dds
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\begin_layout LyX-Code
Dataset {
\end_layout

\begin_layout LyX-Code
    Sequence {
\end_layout

\begin_layout LyX-Code
        String date;
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\begin_layout LyX-Code
        Int32 open;
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        Int32 volume;
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\begin_layout LyX-Code
        Float64 adj_close;
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\begin_layout LyX-Code
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\begin_layout LyX-Code
} sample%2Ecsv;
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\begin_layout BeginFrame
PyDAP Client and Server
\end_layout

\begin_layout Itemize
Pure Python implementation
\end_layout

\begin_layout Itemize
Can be used interactively to explore a dataset (demo later)
\end_layout

\begin_layout Itemize
Available via 
\family typewriter
\color blue
setuptools
\family default
\color inherit
:
\end_layout

\begin_deeper
\begin_layout Itemize

\family typewriter
\color blue
easy_install dap
\end_layout

\begin_layout Itemize

\family typewriter
\color blue
easy_install 
\begin_inset Quotes eld
\end_inset

dap[server]
\begin_inset Quotes erd
\end_inset


\end_layout

\begin_layout Itemize

\family typewriter
\color blue
easy_install dap.plugins.netcdf dap.responses.wms dap.responses.html
\end_layout

\end_deeper
\begin_layout BeginFrame
Plugins and responses: a modular architecture
\end_layout

\begin_layout Standard
\align center
\begin_inset Graphics
	filename pydap_arch.png
	width 80text%

\end_inset


\end_layout

\begin_layout BeginFrame
Plugins
\end_layout

\begin_layout FrameSubtitle
Convert data from any format to PyDAP types
\end_layout

\begin_layout Standard
Already available:
\end_layout

\begin_layout Itemize
netCDF
\end_layout

\begin_layout Itemize
CSV
\end_layout

\begin_layout Itemize
Matlab 4/5
\end_layout

\begin_layout Itemize
HDF5
\end_layout

\begin_layout Itemize
GrADS grib
\end_layout

\begin_layout Itemize
GDAL, 
\end_layout

\begin_layout Itemize
DB API 2 (SQL)
\end_layout

\begin_layout Itemize
grib2
\end_layout

\begin_layout Standard

\color blue
Can be written in pure python and added by the user for exposing local data
 types.
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Responses 
\end_layout

\begin_layout FrameSubtitle
Return views of the data according to the requests of the user.
\end_layout

\begin_layout Itemize

\family typewriter
\color blue
dds
\family default
\color inherit
, 
\family typewriter
\color blue
das
\family default
\color inherit
, 
\family typewriter
\color blue
dods
\family default
\color inherit
: `standard'
\end_layout

\begin_layout Itemize
ASCII for human consumption (
\family typewriter
\color blue
ascii
\family default
\color inherit
)
\end_layout

\begin_layout Itemize
HTML, with auto-generated forms (
\family typewriter
\color blue
html
\family default
\color inherit
)
\end_layout

\begin_layout Itemize
JSON (
\family typewriter
\color blue
json
\family default
\color inherit
): lightweight alternative to XML for data exchange
\end_layout

\begin_deeper
\begin_layout Itemize
JSON is valid Python code (dictionary)!
\end_layout

\end_deeper
\begin_layout Itemize
WMS/Google Earth (
\family typewriter
\color blue
kml
\family default
\color inherit
)
\end_layout

\begin_layout Itemize
EditGrid/Google Spreadsheets
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\begin_layout EndFrame

\end_layout

\end_body
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