# Changeset 4662

Ignore:
Timestamp:
Aug 7, 2007, 10:41:35 AM (11 years ago)
Message:

remove xya file format references. xya removed.

File:
1 edited

### Legend:

Unmodified
 r4646 \code{.tms} & NetCDF format for storing time series \code{f(t)}\\ \code{.csv/.txt} & ASCII format for storing arbitrary points and associated attributes\\ \code{.xya} & Depreciated ASCII format for storing arbitrary points and associated attributes\\ \code{.csv/.txt} & ASCII format called points csv for storing arbitrary points and associated attributes\\ \code{.pts} & NetCDF format for storing arbitrary points and be x, y coordinates. An XYA file is a depreciated format used to store data representing arbitrary numerical attributes associated with a set of points. The attribute values must be numeric. The format for an XYA file is:\\ %\begin{verbatim} first line:     \code{[attribute names]}\\ other lines:  \code{x y [attributes]}\\ for example:\\ \code{elevation, friction}\\ \code{0.6, 0.7, 4.9, 0.3}\\ \code{1.9, 2.8, 5, 0.3}\\ \code{2.7, 2.4, 5.2, 0.3} The first two columns are always implicitly assumed to be $x$, $y$ coordinates. Use the same delimiter for the attribute names and the data. An XYA file can optionally end with a description of the georeference: \code{\#geo reference}\\ \code{56}\\ \code{466600.0}\\ \code{8644444.0} Here the first number specifies the UTM zone (in this case zone 56)  and other numbers specify the easting and northing coordinates (in this case (466600.0, 8644444.0)) of the lower left corner. A PTS file is a NetCDF representation of the data held in an XYA A PTS file is a NetCDF representation of the data held in an points CSV file. If the data is associated with a set of $N$ points, then the data is stored using an $N \times 2$ Numeric array of float The data points are specified either by reading them from a NetCDF or XYA file, identified through the parameter \code{file\_name}, or or CSV file, identified through the parameter \code{file\_name}, or by providing their \code{x}- and \code{y}-coordinates in metres, either as a sequence of 2-tuples of floats or as an $M \times 2$ Mercator) coordinate. & \\ \indexedbold{points file} & A PTS or XYA file & \\  \hline \indexedbold{points file} & A PTS or CSV file & \\  \hline \end{tabular}