Changeset 4662


Ignore:
Timestamp:
Aug 7, 2007, 10:41:35 AM (10 years ago)
Author:
duncan
Message:

remove xya file format references. xya removed.

File:
1 edited

Legend:

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  • anuga_core/documentation/user_manual/anuga_user_manual.tex

    r4646 r4662  
    24782478\code{.tms} & NetCDF format for storing time series \code{f(t)}\\
    24792479
    2480 \code{.csv/.txt} & ASCII format for storing arbitrary points and
    2481 associated attributes\\
    2482 
    2483 \code{.xya} & Depreciated ASCII format for storing arbitrary points and
    2484 associated attributes\\
     2480\code{.csv/.txt} & ASCII format called points csv for storing
     2481arbitrary points and associated attributes\\
    24852482
    24862483\code{.pts} & NetCDF format for storing arbitrary points and
     
    26442641        be x, y coordinates.
    26452642       
    2646 An XYA file is a depreciated format used to store data representing
    2647 arbitrary numerical attributes associated with a set of points. The
    2648 attribute values must be numeric.
    2649 
    2650 The format for an XYA file is:\\
    2651 %\begin{verbatim}
    2652 
    2653             first line:     \code{[attribute names]}\\
    2654             other lines:  \code{x y [attributes]}\\
    2655 
    2656             for example:\\
    2657             \code{elevation, friction}\\
    2658             \code{0.6, 0.7, 4.9, 0.3}\\
    2659             \code{1.9, 2.8, 5, 0.3}\\
    2660             \code{2.7, 2.4, 5.2, 0.3}
    2661 
    2662         The first two columns are always implicitly assumed to be $x$, $y$ coordinates.
    2663         Use the same delimiter for the attribute names and the data.
    2664 
    2665         An XYA file can optionally end with a description of the georeference:
    2666 
    2667             \code{\#geo reference}\\
    2668             \code{56}\\
    2669             \code{466600.0}\\
    2670             \code{8644444.0}
    2671 
    2672         Here the first number specifies the UTM zone (in this case zone 56)  and other numbers specify the
    2673         easting and northing
    2674         coordinates (in this case (466600.0, 8644444.0)) of the lower left corner.
    2675 
    2676 A PTS file is a NetCDF representation of the data held in an XYA
     2643
     2644A PTS file is a NetCDF representation of the data held in an points CSV
    26772645file. If the data is associated with a set of $N$ points, then the
    26782646data is stored using an $N \times 2$ Numeric array of float
     
    34673435
    34683436The data points are specified either by reading them from a NetCDF
    3469 or XYA file, identified through the parameter \code{file\_name}, or
     3437or CSV file, identified through the parameter \code{file\_name}, or
    34703438by providing their \code{x}- and \code{y}-coordinates in metres,
    34713439either as a sequence of 2-tuples of floats or as an $M \times 2$
     
    39673935    Mercator) coordinate. & \\
    39683936
    3969     \indexedbold{points file} & A PTS or XYA file & \\  \hline
     3937    \indexedbold{points file} & A PTS or CSV file & \\  \hline
    39703938
    39713939    \end{tabular}
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