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view doc/config-manual/generating_charts.tex @ 1138:2c00570ab3bd
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author | Thomas Arendsen Hein <thomas@intevation.de> |
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date | Fri, 28 Sep 2012 12:14:02 +0200 |
parents | 9a28846dfb9c |
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\subsection{Generating Charts -- Background Information and Configuration} The artifact-server is able to render different types of charts like 1D (timeseries, vertical- and horizontalprofiles, horizontal-cross-section profiles (a special case of the horizontalprofiles) and histograms) and 2D-diagrams (vertical-cross section profiles). This section describes the possibilities to configure different aspects for interpolating of data and visualising them in charts. \begin{lstlisting} artifact-database `-- gnv # charts, palettes, interpolation parameters |-- charttemplate |-- palettes |-- horizontal-cross-section-profile `-- vertical-cross-section \end{lstlisting} \paragraph*{charttemplate} {\em Function}: The chart template is a global template for setting the visualization of charts globally like font styles, background, title, subtitle, etc. Further information can be found in the configuration file referenced via the attribute {\tt configuration}. \begin{itemize} \item {\tt configuration}: path to the configuration XML-file. \end{itemize} \paragraph*{palettes} {\em Function}: This section lists the available palettes used for rendering vertical-cross-section charts (2D). Each {\tt palette}-element contains the following attributes: \begin{itemize} \item {\tt name}: a descriptive name. \item {\tt parameter-ids}: identifier used as keys for matching between data (from the database) and palette. {\bf The {\tt parameter-ids} have to been in sync with the database parameters (normally in {\tt MEDIAN.Parameter})} \item {\tt description}: a description. \item {\tt file}: reference to the defintion of the palette. \end{itemize} For defining ranges for a palette, a range is definied by: \begin{itemize} \item {\tt index}: Index for accessing the explicit range from the program logic. \item {\tt from}: lower limit of a range. \item {\tt to}: upper limit of a range \item {\tt rgb}: Red-Green-Blue (RGB) value for rendering the range \item {\tt description}: description for rendering the legend. For special characters use HTML-encoded values like {\tt \<} for $<$ or {\tt \>} for $>$. \end{itemize} \paragraph*{horizontal-cross-section-profile} {\em Function}: Parameterization for the interpolation algorithm for horizontal-cross-section-profile calculating the interpolated value along the distance. \begin{itemize} \item {\tt samples}: Number of samples calculated for a interpolation along the passed geometric line. \end{itemize} \paragraph*{vertical-cross-section} {\em Function}: Parameterization for the interpolation algorithm for vertical-cross-sections (2D-charts). \begin{itemize} \item {\tt samples}: Parameters for defining the interpolation grid. {\tt width} for horizontal distances; {\tt height} for the vertical distance. \item {\tt ground}: {\tt interpolation} method for calculating the interpolation from the last measured value against the seafloor. Available methods are {\tt nearest-neighbor | bilinear | bicubic}.\\ {\tt fill-color}: setting the file color for the seafloor in the diagram. \end{itemize}