/[thuban]/branches/WIP-pyshapelib-bramz/Doc/manual/thuban-manual.xml
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revision 2311 by jan, Sat Jul 31 11:12:20 2004 UTC revision 2482 by bernhard, Sat Dec 18 02:36:59 2004 UTC
# Line 484  rpm -bb thuban.spec Line 484  rpm -bb thuban.spec
484          If a session is already loaded and has been modified without          If a session is already loaded and has been modified without
485          being saved a prompt will ask if the current session should          being saved a prompt will ask if the current session should
486          be saved. A new session consists of an empty map with no          be saved. A new session consists of an empty map with no
487          layers and no tables.          layers, no tables and no projection.
488          </para>          </para>
489          </section>          </section>
490    
# Line 498  rpm -bb thuban.spec Line 498  rpm -bb thuban.spec
498          for a Thuban Session file. Thuban session files end with          for a Thuban Session file. Thuban session files end with
499          <varname>.thuban</varname>. Selecting a file a clicking          <varname>.thuban</varname>. Selecting a file a clicking
500          <guibutton>OK</guibutton> will load the session into Thuban.          <guibutton>OK</guibutton> will load the session into Thuban.
501                    </para>
502    
503                    <para>
504          If a session is already loaded and has been modified without          If a session is already loaded and has been modified without
505          being saved a prompt will ask if the current session should          being saved a prompt will ask if the current session should
506          be saved.          be saved.
507          </para>          </para>
508                    
509                    <para>
510                    Thuban provides a path recovery feature: If a (shape) file referenced
511                    in a Thuban session cannot be found at the specified location, the user
512                    is prompted a file dialog. Here a new location can be selected for the
513                    currents layer data source. Cancelling the dialog removes the layer
514                    from the session. If a new location has been selected, Thuban checks
515                    this again, if further layers data sources are missing. The user is
516                    informed about this and can accept or cancel the suggestion.
517            </para>
518          </section>          </section>
519    
520          <section><title>Saving a Session</title>          <section><title>Saving a Session</title>
# Line 511  rpm -bb thuban.spec Line 523  rpm -bb thuban.spec
523          <menuchoice>          <menuchoice>
524          <guimenu>File</guimenu>          <guimenu>File</guimenu>
525          <guimenuitem>Save Session</guimenuitem>          <guimenuitem>Save Session</guimenuitem>
526          </menuchoice>. A dialog box will open allowing the user to browse          </menuchoice>.
527                    In the case the session is not a new and unsaved one,
528                    the corresponding file is updated with the current session
529                    data.
530                    In the case the current session is a new one and yet unsaved
531                    a dialog box will open allowing the user to browse
532          the file system and select a place to save the session. Thuban          the file system and select a place to save the session. Thuban
533          sessions should be saved under a name ending in          sessions should be saved under a name ending in
534          <varname>.thuban</varname>. If the file already exists the user          <varname>.thuban</varname>. If the file already exists the user
# Line 1656  rpm -bb thuban.spec Line 1673  rpm -bb thuban.spec
1673                  </para>                  </para>
1674    
1675                  <section><title>Stable extensions</title>                  <section><title>Stable extensions</title>
1676                          <para>                      <para>
1677                          These extensions provide extra-functionality to Thuban                      These extensions provide extra-functionality to Thuban
1678                          that has not (yet) been integrated in the main application.                      that has not (yet) been integrated in the main application.
1679                          They are considered to be free of bugs, but may be                      They are considered to be free of bugs, but may be
1680                          further polished with helpful user interactions.                      further polished with helpful user interactions.
1681                          </para>                      </para>
1682                          <section><title>gns2shp</title>                      <section><title>gns2shp</title>
1683                                  <para>                                  <para>
1684                                  This tool converts data of the Geospatial Names Server                                  This tool converts data of the Geospatial Names Server
1685                                  (GNS, see <ulink url="http://www.nima.mil/gns"/>)                                  (GNS, see <ulink url="http://www.nima.mil/gns"/>)
# Line 1689  rpm -bb thuban.spec Line 1706  rpm -bb thuban.spec
1706                                  is included in the directory                                  is included in the directory
1707                                  <literal>Extensions/gns2shp/test</literal>.                                  <literal>Extensions/gns2shp/test</literal>.
1708                                  </para>                                  </para>
1709                          </section>                      </section>
1710                        <section><title>SVG Export</title>
1711                            <para>
1712                            Map and legend can be exported separately in the
1713                            Thuban-Map-SVG format.
1714                            You get files that comply with
1715                            the Scalable Vector Graphics (SVG) 1.1 Specification
1716                            and can be read by many vector drawing applications.
1717                            </para>
1718                            <para>
1719                            Goal of svgexport is to provide
1720                            the start of a printing pipeline for Thuban.
1721                            For this purpose the written Thuban-Map-SVG files
1722                            contain information that can be used in postprocessing.
1723                            Typically a general vector drawing application is
1724                            more powerful then a geographic information viewer;
1725                            e.g. having much fancier symbols and fonts.
1726                            Also users benefit much more when learning to use a
1727                            more general application they can also use for other
1728                            tasks.  So the charming idea is to enable
1729                            the drawing application to postprocess a Thuban maps.
1730                            So thee xtra information in the format will make it
1731                            possible to export from Thuban and if a few geoobjects
1732                            change, and keep the general layout and style
1733                            of the full map in the vector drawing appplication.
1734                            </para>
1735                            <para>
1736                            Markus Rechtien has developed a prototype of this
1737                            printing pipline as his Diplom thetis, showing
1738                            the feasability of Bernhard Reiter's concept.
1739                            Scripts exist for the drawing application Skencil
1740                            (<ulink url="http://www.skencil.org"/>).
1741                            </para>
1742                            <para>
1743                            Technical notes: the names of the layers are used
1744                            as base for ids within the SVG format.
1745                            If you try to export with two layers having
1746                            the same name, you will get a name clash error.
1747                            Just change one of the layer names and try again.
1748                            </para>
1749                        </section>
1750                  </section>                  </section>
1751                  <section><title>Experimental extensions</title>                  <section><title>Experimental extensions</title>
1752                          <para>                          <para>
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