Mercurial > dive4elements > gnv-client

annotate doc/config-manual/generating_charts.tex @ 1139:3a28fef65500

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author Thomas Arendsen Hein <thomas@intevation.de>
date Fri, 28 Sep 2012 12:15:16 +0200
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1 \subsection{Generating Charts -- Background Information and Configuration}
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2
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3 The artifact-server is able to render different types of charts like 1D
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4 (timeseries, vertical- and horizontalprofiles, horizontal-cross-section
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5 profiles (a special case of the horizontalprofiles) and histograms) and 2D-diagrams
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6 (vertical-cross section profiles). This section describes the
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7 possibilities to configure different aspects for interpolating of data and
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8 visualising them in charts.
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9
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10 \begin{lstlisting}
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11 artifact-database
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12 `-- gnv # charts, palettes, interpolation parameters
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13 |-- charttemplate
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14 |-- palettes
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15 |-- horizontal-cross-section-profile
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16 `-- vertical-cross-section
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17 \end{lstlisting}
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18
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19 \paragraph*{charttemplate}
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20 {\em Function}: The chart template is a global template for setting the
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21 visualization of charts globally like font styles, background, title,
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22 subtitle, etc. Further information can be found in the configuration
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23 file referenced via the attribute {\tt configuration}.
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24
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25 \begin{itemize}
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26 \item {\tt configuration}: path to the configuration XML-file.
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27 \end{itemize}
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28
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29
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30 \paragraph*{palettes}
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31 {\em Function}: This section lists the available palettes used for rendering
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32 vertical-cross-section charts (2D). Each {\tt palette}-element contains
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33 the following attributes:
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34
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35 \begin{itemize}
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36 \item {\tt name}: a descriptive name.
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37 \item {\tt parameter-ids}: identifier used as keys for matching
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38 between data (from the database) and palette. {\bf The {\tt
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39 parameter-ids} have to been in sync with the database parameters
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40 (normally in {\tt MEDIAN.Parameter})}
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41 \item {\tt description}: a description.
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42 \item {\tt file}: reference to the defintion of the palette.
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43 \end{itemize}
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44
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45 For defining ranges for a palette, a range is definied by:
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46
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47 \begin{itemize}
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48 \item {\tt index}: Index for accessing the explicit range from the
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49 program logic.
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50 \item {\tt from}: lower limit of a range.
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51 \item {\tt to}: upper limit of a range
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52 \item {\tt rgb}: Red-Green-Blue (RGB) value for rendering the range
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53 \item {\tt description}: description for rendering the legend. For
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54 special characters use HTML-encoded values like {\tt \&lt;} for $<$
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55 or {\tt \&gt;} for $>$.
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56 \end{itemize}
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57
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58
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59 \paragraph*{horizontal-cross-section-profile}
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60
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61 {\em Function}: Parameterization for the interpolation algorithm for
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62 horizontal-cross-section-profile calculating the interpolated value
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63 along the distance.
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64
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65 \begin{itemize}
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66 \item {\tt samples}: Number of samples calculated for a
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67 interpolation along the passed geometric line.
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68 \end{itemize}
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70
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71 \paragraph*{vertical-cross-section}
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72 {\em Function}: Parameterization for the interpolation algorithm for
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73 vertical-cross-sections (2D-charts).
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74
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75 \begin{itemize}
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76 \item {\tt samples}: Parameters for defining the interpolation grid.
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77 {\tt width} for horizontal distances; {\tt height} for the vertical
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78 distance.
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79 \item {\tt ground}: {\tt interpolation} method for calculating the
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80 interpolation from the last measured value against the seafloor.
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81 Available methods are {\tt nearest-neighbor | bilinear | bicubic}.\\
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82 {\tt fill-color}: setting the file color for the seafloor in the
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83 diagram.
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84 \end{itemize}
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