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revision 1510 by jonathan, Tue Jul 29 14:48:41 2003 UTC revision 1544 by jan, Mon Aug 4 15:22:48 2003 UTC
# Line 24  Line 24 
24    
25    <chapter><title>Introduction</title>    <chapter><title>Introduction</title>
26      <para>      <para>
27      Thuban is a Free Software Geographic Information Systems (GIS) viewer.      Thuban is an interactive geographic data viewer.
28      It is being developed because there is currently no simple interactive      It has been developed because there was no simple interactive
29      viewer for geographic information available as Free Software. Thuban is      viewer for geographic information available as Free Software. Thuban is
30      written in Python and C++ and uses the wxWindows library allowing it to      written in Python and C++ and uses the wxWindows library allowing it to
31      run on many different platforms, including GNU/Linux and Windows.      run on many different platforms, including GNU/Linux and Windows.
32      </para>      </para>
33      <para>      <para>
34      GIS viewers are a necessary tool as they allow one to get a visual      Geographic data viewers are a necessary tool as they allow one to
35            get a visual
36      impression of the positional relationship of the information that may not      impression of the positional relationship of the information that may not
37      be apparent from simple inspection of the data values themselves.      be apparent from simple inspection of the data values themselves.
38      Thuban allows the user to create a session that displays      Thuban allows the user to create a session that displays
# Line 48  Line 49 
49          <section><title>Installation</title>          <section><title>Installation</title>
50          <para>          <para>
51          Thuban is actively supported under Debian Testing (sarge), RedHat 7.2,          Thuban is actively supported under Debian Testing (sarge), RedHat 7.2,
52          and Windows 2000. The following list of files that Thuban requires          and Windows 2000. Thuban depends on the following packages. These
53          can be found on the          packages can also be found on the
54          <ulink url="http://thuban.intevation.org/download.html">          <ulink url="http://thuban.intevation.org/download.html">
55          Thuban Download site          Thuban Download site
56          </ulink>.          </ulink>.
57          <variablelist>          <itemizedlist>
58          <varlistentry>              <listitem><para>Python 2.2.1 (<literal>http://www.python.org</literal>)</para></listitem>
59          <term>Debian Testing (sarge)</term>              <listitem><para>wxWindows 2.4 (<literal>http://www.wxwindows.org</literal>)</para></listitem>
60          <listitem>              <listitem><para>wxPython 2.4 (<literal>http://www.wxpython.org</literal>)</para></listitem>
61              <para>Thuban-0.8.1-1-debian.i386.rpm</para>              <listitem><para>proj 4.4.5 Projection Library (<literal>http://www.remotesensing.org/proj/</literal>)</para></listitem>
62              <para>GTK 1.2.3</para>              <listitem><para>GDAL 1.1.8 (<literal>http://www.remotesensing.org/gdal/</literal>)</para></listitem>
63              <para>Python 2.2.1</para>              <listitem><para>SQLite 2.8.3 (<literal>http://www.hwaci.com/sw/sqlite/</literal>)</para></listitem>
64              <para>Python 2.2 XML Base Tools</para>              <listitem><para>PySQLite 0.4.3 (<literal>http://pysqlite.sourceforge.net</literal>)</para></listitem>
65              <para>wxWindows 2.4</para>              </itemizedlist>
66              <para>wxWindows 2.4 Python Bindings</para>          </para>
67              <para>proj 4.4.5 Projection Library</para>                  <para>
68              <para>SQLite Python Bindings 0.4.3</para>                  Along with the source codes, the download page also offers
69              <para>GDAL 1.1.8</para>                  full installation packages for Debian, Windows and RPM-based systems
70          </listitem>                  (Mandrake, RedHat, SuSE, etc).
71          </varlistentry>                  </para>
         <varlistentry>  
         <term>RedHat 7.2</term>  
         <listitem>  
             <para>Thuban-0.8.1-1.i386.rpm</para>  
             <para>Python 2.2.1</para>  
             <para>wxPython 2.4 for Python 2.2 with wxGTK</para>  
             <para>proj 4.4.5 Projection Library</para>  
             <para>SQLite 2.8.3</para>  
             <para>PySQLite 0.4.3</para>  
             <para>GDAL 1.1.8</para>  
         </listitem>  
         </varlistentry>  
         <varlistentry>  
         <term>Windows 2000</term>  
         <listitem>  
             <para>Thuban-0.8.1-0.exe</para>  
             <para>Python 2.2.1</para>  
             <para>wxWindows 2.4 for Python 2.2</para>  
             <para>SQLite Python Libraries</para>  
             <para>GDAL for Thuban</para>  
         </listitem>  
         </varlistentry>  
         </variablelist>  
         </para>  
72          </section>          </section>
73    
74          <section><title>The Main Window</title>          <section><title>The Main Window</title>
75          <para>          <para>
76          <screenshot>          <figure>
77          <screeninfo>The Main Window</screeninfo>          <title>The Main Window</title>
78          <mediaobject>          <mediaobject>
79          <imageobject> <imagedata fileref="../images/1_2_mainwindow.png" format="PNG" scale="&imgscale;"/> </imageobject>          <imageobject> <imagedata fileref="../images/1_2_mainwindow.png" format="PNG" scale="&imgscale;"/> </imageobject>
80          <imageobject> <imagedata fileref="./images/1_2_mainwindow.ps" format="EPS" scale="&imgscale;"/> </imageobject>          <imageobject> <imagedata fileref="./images/1_2_mainwindow.ps" format="EPS" scale="&imgscale;"/> </imageobject>
         <textobject><phrase>The Main Window</phrase></textobject>  
         <caption><para>The Main Window</para></caption>  
81          </mediaobject>          </mediaobject>
82          </screenshot>          </figure>
83          </para>          </para>
84    
85          <para>          <para>
# Line 198  Line 173 
173    
174          <section><title>The Session Info-Tree</title>          <section><title>The Session Info-Tree</title>
175          <para>          <para>
176          <screenshot>          <figure>
177          <screeninfo>Session Info Tree</screeninfo>          <title>Session Info Tree</title>
178          <mediaobject>          <mediaobject>
179          <imageobject><imagedata fileref="../images/2_4_session_tree.png" format="PNG" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="../images/2_4_session_tree.png" format="PNG" scale="&imgscale;"/></imageobject>
180          <imageobject><imagedata fileref="./images/2_4_session_tree.eps" format="EPS" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="./images/2_4_session_tree.eps" format="EPS" scale="&imgscale;"/></imageobject>
         <textobject><phrase>Session Info Tree</phrase></textobject>  
         <caption><para>Session Info Tree</para></caption>  
181          </mediaobject>          </mediaobject>
182          </screenshot>          </figure>
183          </para>          </para>
184          <para>          <para>
185          The session info-tree is primarily intended for developers working          The session info-tree is primarily intended for developers working
# Line 287  Line 260 
260          the tool bar or from the          the tool bar or from the
261          <menuchoice><guimenu>Map</guimenu></menuchoice> menu.          <menuchoice><guimenu>Map</guimenu></menuchoice> menu.
262          </para>          </para>
263            <itemizedlist>
264            <listitem>
265          <para>          <para>
266          The ZoomIn tool          The ZoomIn tool
267          <inlinemediaobject>          <inlinemediaobject>
# Line 303  Line 278 
278          was clicked. Clicking and dragging selects a region that will be          was clicked. Clicking and dragging selects a region that will be
279          enlarged to fit the window.          enlarged to fit the window.
280          </para>          </para>
281            </listitem>
282            <listitem>
283          <para>          <para>
284          The ZoomOut tool          The ZoomOut tool
285          <inlinemediaobject>          <inlinemediaobject>
# Line 319  Line 296 
296          selects a box such that the current contents of the window will be          selects a box such that the current contents of the window will be
297          scaled to fit into that box.          scaled to fit into that box.
298          </para>          </para>
299            </listitem>
300            <listitem>
301          <para>          <para>
302          The Pan tool          The Pan tool
303          <inlinemediaobject>          <inlinemediaobject>
# Line 332  Line 311 
311          </inlinemediaobject>          </inlinemediaobject>
312          allows the user to move the map around by clicking and dragging.          allows the user to move the map around by clicking and dragging.
313          </para>          </para>
314            </listitem>
315            <listitem>
316          <para>          <para>
317          The Full Extent tool          The Full Extent tool
318          <inlinemediaobject>          <inlinemediaobject>
# Line 345  Line 326 
326          </inlinemediaobject>          </inlinemediaobject>
327          rescales the viewable region so that the entire map is visible.          rescales the viewable region so that the entire map is visible.
328          </para>          </para>
329            </listitem>
330            <listitem>
331          <para>          <para>
332          The Full Layer Extent tool          The Full Layer Extent tool
333          <inlinemediaobject>          <inlinemediaobject>
# Line 360  Line 343 
343          layer fits within the window. If no layer is selected this button          layer fits within the window. If no layer is selected this button
344          will be disabled.          will be disabled.
345          </para>          </para>
346            </listitem>
347            <listitem>
348          <para>          <para>
349          The Full Shape Extent tool          The Full Shape Extent tool
350          <inlinemediaobject>          <inlinemediaobject>
# Line 379  Line 364 
364          in a tableview (see below).          in a tableview (see below).
365    
366          </para>          </para>
367            </listitem>
368            </itemizedlist>
369          </section>          </section>
370    
371          <section><title>Object Identification</title>          <section><title>Object Identification</title>
# Line 447  Line 434 
434          <menuchoice><guimenu>Map</guimenu></menuchoice>.          <menuchoice><guimenu>Map</guimenu></menuchoice>.
435          </para>          </para>
436    
437            <itemizedlist>
438            <listitem>
439          <para>          <para>
440          The Move Layer to Top tool          The Move Layer to Top tool
441          <inlinemediaobject>          <inlinemediaobject>
# Line 459  Line 448 
448          <textobject> <phrase>Move Layer to Top</phrase> </textobject>          <textobject> <phrase>Move Layer to Top</phrase> </textobject>
449          </inlinemediaobject> raises the selected layer to the top of the map.          </inlinemediaobject> raises the selected layer to the top of the map.
450          </para>          </para>
451            </listitem>
452            <listitem>
453    
454          <para>          <para>
455          The Move Layer Up tool          The Move Layer Up tool
# Line 472  Line 463 
463          <textobject> <phrase>Move Layer Up</phrase> </textobject>          <textobject> <phrase>Move Layer Up</phrase> </textobject>
464          </inlinemediaobject> raises the selected layer one level.          </inlinemediaobject> raises the selected layer one level.
465          </para>          </para>
466            </listitem>
467            <listitem>
468    
469          <para>          <para>
470          The Move Layer Down tool          The Move Layer Down tool
# Line 486  Line 479 
479          </inlinemediaobject> lowers the selected layer one level.          </inlinemediaobject> lowers the selected layer one level.
480          </para>          </para>
481    
482            </listitem>
483            <listitem>
484          <para>          <para>
485          The Move Layer to Bottom tool          The Move Layer to Bottom tool
486          <inlinemediaobject>          <inlinemediaobject>
# Line 499  Line 494 
494          </inlinemediaobject> lowers the selected layer to the bottom of the map.          </inlinemediaobject> lowers the selected layer to the bottom of the map.
495          </para>          </para>
496    
497            </listitem>
498            <listitem>
499          <para>          <para>
500          The Visible tool          The Visible tool
501          <inlinemediaobject>          <inlinemediaobject>
# Line 513  Line 510 
510          hidden.          hidden.
511          </para>          </para>
512    
513            </listitem>
514            <listitem>
515          <para>          <para>
516          The Invisible tool          The Invisible tool
517          <inlinemediaobject>          <inlinemediaobject>
# Line 526  Line 525 
525          </inlinemediaobject> hides the selected layer in the map.          </inlinemediaobject> hides the selected layer in the map.
526          </para>          </para>
527    
528            </listitem>
529            <listitem>
530          <para>          <para>
531          The Properties tool          The Properties tool
532          <inlinemediaobject>          <inlinemediaobject>
# Line 540  Line 541 
541          Double-clicking on a layer or a group of a layer will open the          Double-clicking on a layer or a group of a layer will open the
542          properties dialog for that layer.          properties dialog for that layer.
543          </para>          </para>
544            </listitem>
545            </itemizedlist>
546          <para>          <para>
547          Along the bottom of the legend is the scalebar. The scalebar          Along the bottom of the legend is the scalebar. The scalebar
548          will be available if there are any layers and the  map has a          will be available if there are any layers and the  map has a
# Line 619  Line 621 
621          and type.          and type.
622          </para>          </para>
623          <para>          <para>
624          <screenshot>          <figure>
625          <screeninfo>Properties Window</screeninfo>          <title>Properties Window</title>
626          <mediaobject>          <mediaobject>
627          <imageobject><imagedata fileref="../images/4_2_layer_properties.png" format="PNG" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="../images/4_2_layer_properties.png" format="PNG" scale="&imgscale;"/></imageobject>
628          <imageobject><imagedata fileref="./images/4_2_layer_properties.eps" format="EPS" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="./images/4_2_layer_properties.eps" format="EPS" scale="&imgscale;"/></imageobject>
         <textobject><phrase>Properties Window</phrase></textobject>  
         <caption><para>The Properties Window for a Shape Layer</para></caption>  
629          </mediaobject>          </mediaobject>
630          </screenshot>          </figure>
631          </para>          </para>
632          <para>          <para>
633          <screenshot>          <figure>
634          <screeninfo>Properties Window</screeninfo>          <title>Properties Window</title>
635          <mediaobject>          <mediaobject>
636          <imageobject><imagedata fileref="../images/4_2_raster_layer_properties.png" format="PNG" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="../images/4_2_raster_layer_properties.png" format="PNG" scale="&imgscale;"/></imageobject>
637          <imageobject><imagedata fileref="./images/4_2_raster_layer_properties.eps" format="EPS" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="./images/4_2_raster_layer_properties.eps" format="EPS" scale="&imgscale;"/></imageobject>
         <textobject><phrase>Properties Window</phrase></textobject>  
         <caption><para>The Properties Window for an Image Layer</para></caption>  
638          </mediaobject>          </mediaobject>
639          </screenshot>          </figure>
640          </para>          </para>
641          </section>          </section>
642    
# Line 735  Line 733 
733          changes will not be applied to the map.          changes will not be applied to the map.
734          </para>          </para>
735          <para>          <para>
736          <screenshot>          <figure>
737          <screeninfo>Properties Window</screeninfo>          <title>Properties Window</title>
738          <mediaobject>          <mediaobject>
739          <imageobject><imagedata fileref="../images/5_classification.png" format="PNG" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="../images/5_classification.png" format="PNG" scale="&imgscale;"/></imageobject>
740          <imageobject><imagedata fileref="./images/5_classification.eps" format="EPS" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="./images/5_classification.eps" format="EPS" scale="&imgscale;"/></imageobject>
         <textobject><phrase>Properties Window</phrase></textobject>  
         <caption><para>The Properties Window with Classifications</para></caption>  
741          </mediaobject>          </mediaobject>
742          </screenshot>          </figure>
743          </para>          </para>
744          <para>          <para>
745          The order of the groups in the classification is significant          The order of the groups in the classification is significant
# Line 809  Line 805 
805    
806          <section><title>Generating Classes</title>          <section><title>Generating Classes</title>
807          <para>          <para>
808          <screenshot>          <figure>
809          <screeninfo>Generate Class</screeninfo>          <title>Generate Class</title>
810          <mediaobject>          <mediaobject>
811          <imageobject><imagedata fileref="../images/5_3_genclass.png" format="PNG" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="../images/5_3_genclass.png" format="PNG" scale="&imgscale;"/></imageobject>
812          <imageobject><imagedata fileref="./images/5_3_genclass.eps" format="EPS" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="./images/5_3_genclass.eps" format="EPS" scale="&imgscale;"/></imageobject>
         <textobject><phrase>Generate Class</phrase></textobject>  
         <caption><para>The Generate Classifications Dialog</para></caption>  
813          </mediaobject>          </mediaobject>
814          </screenshot>          </figure>
815          </para>          </para>
816          <para>          <para>
817          Creating a classification by hand can be tedious.          Creating a classification by hand can be tedious.
# Line 836  Line 830 
830          For every way of generating a classification, a color scheme must          For every way of generating a classification, a color scheme must
831          be selected. Thuban provides several different color schemes that          be selected. Thuban provides several different color schemes that
832          affect how the group properties change over the classification.          affect how the group properties change over the classification.
833            It may be desirable that only certain properties change over the
834            classification. If the shape type is a polygon or a point then
835            the <guibutton>Fix Border Color</guibutton> option will be available.
836            This allows the user to select a border color for all classification
837            groups.
838          It is also possible to create a custom color scheme. Selecting          It is also possible to create a custom color scheme. Selecting
839          this option will display two symbols: the one of the left has the          this option will display two symbols: the one of the left has the
840          properties of the first group and the one on the right has the          properties of the first group and the one on the right has the
841          properties of the last group. Thuban will interpolate between these          properties of the last group. Thuban will interpolate between these
842          two properties to generate the other groups.          two properties to generate the other groups.
843          <screenshot>          <figure>
844          <screeninfo>Custom Color Scheme</screeninfo>          <title>Custom Color Scheme</title>
845          <mediaobject>          <mediaobject>
846          <imageobject><imagedata fileref="../images/5_2_custom_ramp.png" format="PNG" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="../images/5_2_custom_ramp.png" format="PNG" scale="&imgscale;"/></imageobject>
847          <imageobject><imagedata fileref="./images/5_2_custom_ramp.eps" format="EPS" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="./images/5_2_custom_ramp.eps" format="EPS" scale="&imgscale;"/></imageobject>
         <textobject><phrase>Custom Color Scheme</phrase></textobject>  
         <caption><para>Custom Color Scheme</para></caption>  
848          </mediaobject>          </mediaobject>
849          </screenshot>          </figure>
850          </para>          </para>
851          <para>          <para>
852          The Unique Values option lets the user select specific values that          The Unique Values option lets the user select specific values that
# Line 859  Line 856 
856          right. Each list can be sorted or reversed for easier searching.          right. Each list can be sorted or reversed for easier searching.
857          The classification that is generated will be in the same order as          The classification that is generated will be in the same order as
858          the list on the right.          the list on the right.
859          <screenshot>          <figure>
860          <screeninfo>Unique Values</screeninfo>          <title>Unique Values</title>
861          <mediaobject>          <mediaobject>
862          <imageobject><imagedata fileref="../images/5_2_unique_values.png" format="PNG" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="../images/5_2_unique_values.png" format="PNG" scale="&imgscale;"/></imageobject>
863          <imageobject><imagedata fileref="./images/5_2_unique_values.eps" format="EPS" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="./images/5_2_unique_values.eps" format="EPS" scale="&imgscale;"/></imageobject>
         <textobject><phrase>Unique Values</phrase></textobject>  
         <caption><para>Unique Values Classification</para></caption>  
864          </mediaobject>          </mediaobject>
865          </screenshot>          </figure>
866          </para>          </para>
867          <para>          <para>
868          The Uniform Distribution option creates a user specified number of          The Uniform Distribution option creates a user specified number of
# Line 876  Line 871 
871          table by clicking <guibutton>Retrieve From Table</guibutton>. The          table by clicking <guibutton>Retrieve From Table</guibutton>. The
872          stepping is how large each interval is. Adjusting this value will          stepping is how large each interval is. Adjusting this value will
873          automatically recalculate how many groups is appropriate.          automatically recalculate how many groups is appropriate.
874          <screenshot>          <figure>
875          <screeninfo>Uniform Distribution</screeninfo>          <title>Uniform Distribution</title>
876          <mediaobject>          <mediaobject>
877          <imageobject><imagedata fileref="../images/5_2_uniform_dist.png" format="PNG" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="../images/5_2_uniform_dist.png" format="PNG" scale="&imgscale;"/></imageobject>
878          <imageobject><imagedata fileref="./images/5_2_uniform_dist.eps" format="EPS" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="./images/5_2_uniform_dist.eps" format="EPS" scale="&imgscale;"/></imageobject>
         <textobject><phrase>Uniform Distribution</phrase></textobject>  
         <caption><para>Uniform Distribution Classification</para></caption>  
879          </mediaobject>          </mediaobject>
880          </screenshot>          </figure>
881          </para>          </para>
882          <para>          <para>
883          The Quantiles option generates ranges based on the number of items          The Quantiles option generates ranges based on the number of items
# Line 892  Line 885 
885          generate five groups with appropriate ranges such that 20% of the table          generate five groups with appropriate ranges such that 20% of the table
886          data is in each group. If it is impossible to generate exact          data is in each group. If it is impossible to generate exact
887          groupings, Thuban will issue a warning but allow the user to continue.          groupings, Thuban will issue a warning but allow the user to continue.
888          <screenshot>          <figure>
889          <screeninfo>Quantiles</screeninfo>          <title>Quantiles</title>
890          <mediaobject>          <mediaobject>
891          <imageobject><imagedata fileref="../images/5_2_quantiles.png" format="PNG" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="../images/5_2_quantiles.png" format="PNG" scale="&imgscale;"/></imageobject>
892          <imageobject><imagedata fileref="./images/5_2_quantiles.eps" format="EPS" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="./images/5_2_quantiles.eps" format="EPS" scale="&imgscale;"/></imageobject>
         <textobject><phrase>Quantiles</phrase></textobject>  
         <caption><para>Quantiles Classification</para></caption>  
893          </mediaobject>          </mediaobject>
894          </screenshot>          </figure>
895          </para>          </para>
896          </section>          </section>
897    </chapter>    </chapter>
# Line 922  Line 913 
913      <guimenu>Layer</guimenu>      <guimenu>Layer</guimenu>
914      <guimenuitem>Projection</guimenuitem>      <guimenuitem>Projection</guimenuitem>
915      </menuchoice>.      </menuchoice>.
916      <screenshot>      <figure>
917      <screeninfo>Projection Window</screeninfo>      <title>Projection Window</title>
918      <mediaobject>      <mediaobject>
919      <imageobject><imagedata fileref="../images/6_projection.png" format="PNG" scale="&imgscale;"/></imageobject>      <imageobject><imagedata fileref="../images/6_projection.png" format="PNG" scale="&imgscale;"/></imageobject>
920      <imageobject><imagedata fileref="./images/6_projection.eps" format="EPS" scale="&imgscale;"/></imageobject>      <imageobject><imagedata fileref="./images/6_projection.eps" format="EPS" scale="&imgscale;"/></imageobject>
     <textobject><phrase>Projection Window</phrase></textobject>  
     <caption><para>The Projection Window</para></caption>  
921      </mediaobject>      </mediaobject>
922      </screenshot>      </figure>
923      </para>      </para>
924      <para>      <para>
925      Thuban is distributed with a sample collection of projections. The      Thuban is distributed with a sample collection of projections. The
# Line 1000  Line 989 
989    
990      <section><title>Table View</title>      <section><title>Table View</title>
991          <para>          <para>
992          <screenshot>          <figure>
993          <screeninfo>Table View</screeninfo>          <title>Table View</title>
994          <mediaobject>          <mediaobject>
995          <imageobject><imagedata fileref="../images/7_1_table_view.png" format="PNG" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="../images/7_1_table_view.png" format="PNG" scale="&imgscale;"/></imageobject>
996          <imageobject><imagedata fileref="./images/7_1_table_view.eps" format="EPS" scale="&imgscale;"/></imageobject>          <imageobject><imagedata fileref="./images/7_1_table_view.eps" format="EPS" scale="&imgscale;"/></imageobject>
         <textobject><phrase>Table View</phrase></textobject>  
         <caption><para>The Table View</para></caption>  
997          </mediaobject>          </mediaobject>
998          </screenshot>          </figure>
999          </para>          </para>
1000          <para>          <para>
1001          Thuban provides a standard dialog to display table contents, the          Thuban provides a standard dialog to display table contents, the
# Line 1129  Line 1116 
1116    
1117          <section><title>Join</title>          <section><title>Join</title>
1118              <para>              <para>
1119              <screenshot>              <figure>
1120              <screeninfo>Join Tables</screeninfo>              <title>Join Tables</title>
1121              <mediaobject>              <mediaobject>
1122              <imageobject><imagedata fileref="../images/7_2_5_join.png" format="PNG" scale="&imgscale;"/></imageobject>              <imageobject><imagedata fileref="../images/7_2_5_join.png" format="PNG" scale="&imgscale;"/></imageobject>
1123              <imageobject><imagedata fileref="./images/7_2_5_join.eps" format="EPS" scale="&imgscale;"/></imageobject>              <imageobject><imagedata fileref="./images/7_2_5_join.eps" format="EPS" scale="&imgscale;"/></imageobject>
             <textobject><phrase>Join Tables</phrase></textobject>  
             <caption><para>The Join Tables Dialog</para></caption>  
1124              </mediaobject>              </mediaobject>
1125              </screenshot>              </figure>
1126              </para>              </para>
1127              <para>              <para>
1128              The              The
# Line 1222  Line 1207 
1207      Here are a few problems that users have encountered when first using Thuban.      Here are a few problems that users have encountered when first using Thuban.
1208      </para>      </para>
1209      <para>      <para>
     <variablelist>  
1210    
1211      <varlistentry>      <itemizedlist>
     <term>After adding two or more layers nothing is drawn in the map window.  
     </term>  
1212      <listitem>      <listitem>
1213        <para>After adding two or more layers nothing is drawn in the map window.
1214        </para>
1215      <para>      <para>
1216      This is probably because the layers have different projections. Projections      This is probably because the layers have different projections. Projections
1217      must be set on all layers and on the map itself if the layers' projections      must be set on all layers and on the map itself if the layers' projections
1218      are different.      are different.
1219      </para>      </para>
1220      </listitem>      </listitem>
     </varlistentry>  
1221    
     <varlistentry>  
     <term>Thuban crashes on startup with the error  
         <literal>NameError: global name 'False' is not defined</literal>.  
     </term>  
1222      <listitem>      <listitem>
1223        <para>Thuban crashes on startup with the error
1224            <literal>NameError: global name 'False' is not defined</literal>.
1225        </para>
1226      <para>      <para>
1227      <varname>True</varname> and <varname>False</varname> were only introduced      <varname>True</varname> and <varname>False</varname> were only introduced
1228      in Python 2.2.1. Thuban depends on at least Python 2.2.1.      in Python 2.2.1. Thuban depends on at least Python 2.2.1.
1229      </para>      </para>
1230      </listitem>      </listitem>
     </varlistentry>  
1231    
1232      <varlistentry>      <listitem>
1233      <term>After compiling Thuban, Thuban crashes with an error similar to      <para>After compiling Thuban, Thuban crashes with an error similar to
1234          <literal>          <literal>
1235          ImportError: /usr/local//lib/thuban/Thuban/../Lib/wxproj.so: undefined symbol: __gxx_personality_v0          ImportError: /usr/local//lib/thuban/Thuban/../Lib/wxproj.so: undefined symbol: __gxx_personality_v0
1236          </literal>          </literal>
1237      </term>      </para>
     <listitem>  
1238      <para>      <para>
1239      Thuban depends on the wxWindows library. If Thuban is compiled with an      Thuban depends on the wxWindows library. If Thuban is compiled with an
1240      incompatible version of the compiler than wxWindows was compiled with      incompatible version of the compiler than wxWindows was compiled with
# Line 1262  Line 1242 
1242      compiler.      compiler.
1243      </para>      </para>
1244      </listitem>      </listitem>
1245      </varlistentry>      </itemizedlist>
     </variablelist>  
1246      </para>      </para>
1247      <para>      <para>
1248      If an error occurs Thuban will display a dialog indicating the error      If an error occurs Thuban will display a dialog indicating the error
# Line 1274  Line 1253 
1253      More information about the system is available from      More information about the system is available from
1254      <menuchoice><guimenu>Help</guimenu><guimenuitem>About</guimenuitem></menuchoice> box.      <menuchoice><guimenu>Help</guimenu><guimenuitem>About</guimenuitem></menuchoice> box.
1255      This should also be included in the bug report.      This should also be included in the bug report.
1256      <screenshot>      <figure>
1257      <screeninfo>Error Dialog</screeninfo>      <title>Error Dialog</title>
1258      <mediaobject>      <mediaobject>
1259      <imageobject><imagedata fileref="../images/8_int_error.png" format="PNG" scale="&imgscale;"/></imageobject>      <imageobject><imagedata fileref="../images/8_int_error.png" format="PNG" scale="&imgscale;"/></imageobject>
1260      <imageobject><imagedata fileref="./images/8_int_error.eps" format="EPS" scale="&imgscale;"/></imageobject>      <imageobject><imagedata fileref="./images/8_int_error.eps" format="EPS" scale="&imgscale;"/></imageobject>
     <textobject><phrase>Error Dialog</phrase></textobject>  
     <caption><para>Error Dialog</para></caption>  
1261      </mediaobject>      </mediaobject>
1262      </screenshot>      </figure>
1263      </para>      </para>
1264    
1265    </chapter>    </chapter>
# Line 1319  Line 1296 
1296      </listitem>      </listitem>
1297      </varlistentry>      </varlistentry>
1298    
1299        <varlistentry>
1300        <term>Raster files</term>
1301        <listitem>
1302            <para>
1303            Binding the GDAL library Thuban supports numerous raster file formats,
1304            see <ulink url="http://www.remotesensing.org/gdal/formats_list.html">
1305            GDAL format list</ulink> for details.</para>
1306    
1307            <para>Most commonly used is the <emphasis>TIFF/GeoTIFF</emphasis>
1308            format: Raster maps are provided as TIFF images, with an additional
1309            "world file" storing the geographic reference (usually with an
1310            extension ".tfw").
1311            </para>
1312        </listitem>
1313        </varlistentry>
1314    
1315      </variablelist>      </variablelist>
1316    </appendix>    </appendix>
1317    
# Line 1329  Line 1322 
1322      to create custom projections. Thuban comes with predefined      to create custom projections. Thuban comes with predefined
1323      projections which are available through the Projections dialog.      projections which are available through the Projections dialog.
1324      </para>      </para>
1325      <variablelist>      <itemizedlist>
1326      <varlistentry>      <listitem>
1327          <term>Geographic</term>          <para>Geographic</para>
1328          <listitem><para><literal>Ellipsoid</literal></para>          <itemizedlist>
1329          <para><literal>Source Data</literal>: either Degrees or Radians          <listitem><para><literal>Ellipsoid</literal></para></listitem>
1330            <listitem><para>
1331                    <literal>Source Data</literal>: either Degrees or Radians
1332                  </para></listitem>                  </para></listitem>
1333      </varlistentry>          </itemizedlist>
1334      <varlistentry>      </listitem>
1335          <term>Lambert Conic Conformal</term>      <listitem>
1336          <listitem><para><literal>Ellipsoid</literal></para>          <para>Lambert Conic Conformal</para>
1337          <para><literal>Latitude of 1st standard parallel</literal></para>      <itemizedlist>
1338          <para><literal>Latitude of 2nd standard parallel</literal></para>          <listitem><para><literal>Ellipsoid</literal></para></listitem>
1339          <para><literal>Central Meridian</literal></para>          <listitem><para><literal>Latitude of 1st standard parallel</literal></para></listitem>
1340          <para><literal>Latitude of Origin</literal></para>          <listitem><para><literal>Latitude of 2nd standard parallel</literal></para></listitem>
1341          <para><literal>False Easting</literal> (meters)</para>          <listitem><para><literal>Central Meridian</literal></para></listitem>
1342          <para><literal>False Northing</literal> (meters)</para></listitem>          <listitem><para><literal>Latitude of Origin</literal></para></listitem>
1343      </varlistentry>          <listitem><para><literal>False Easting</literal> (meters)</para></listitem>
1344      <varlistentry>          <listitem><para><literal>False Northing</literal> (meters)</para></listitem>
1345          <term>Transverse Mercator</term>      </itemizedlist>
1346          <listitem><para><literal>Ellipsoid</literal></para>      </listitem>
1347          <para><literal>Latitude</literal>of origin</para>      <listitem>
1348          <para><literal>Longitude</literal>at central meridian</para>          <para>Transverse Mercator</para>
1349          <para><literal>Scale Factor</literal>at central meridian</para>      <itemizedlist>
1350          <para><literal>False Easting</literal> (meters)</para>          <listitem><para><literal>Ellipsoid</literal></para></listitem>
1351          <para><literal>False Northing</literal> (meters)</para></listitem>          <listitem><para><literal>Latitude</literal>of origin</para></listitem>
1352      </varlistentry>          <listitem><para><literal>Longitude</literal>at central meridian</para></listitem>
1353      <varlistentry>          <listitem><para><literal>Scale Factor</literal>at central meridian</para></listitem>
1354          <term>Universal Transverse Mercator</term>          <listitem><para><literal>False Easting</literal> (meters)</para></listitem>
1355          <listitem><para><literal>Ellipsoid</literal></para>          <listitem><para><literal>False Northing</literal> (meters)</para></listitem>
1356          <para><literal>Zone</literal>      </itemizedlist>
1357                  (can be guessed appling the Propose button)</para>      </listitem>
1358          <para><literal>Southern Hemisphere</literal> flag</para></listitem>      <listitem>
1359      </varlistentry>          <para>Universal Transverse Mercator</para>
1360      </variablelist>      <itemizedlist>
1361            <listitem><para><literal>Ellipsoid</literal></para></listitem>
1362            <listitem><para><literal>Zone</literal>
1363                    (can be guessed appling the Propose button)</para></listitem>
1364            <listitem><para><literal>Southern Hemisphere</literal> flag</para></listitem>
1365        </itemizedlist>
1366        </listitem>
1367        </itemizedlist>
1368            
1369      <para>      <para>
1370      Thuban comes with a sample set of map projections for various      Thuban comes with a sample set of map projections for various
1371      European countries. Apart from the basic projection they differ      European countries. Apart from the basic projection they differ
1372      especially in their parameterization:      especially in their parameterization:
1373      </para>      </para>
1374      <variablelist>      <itemizedlist>
1375      <varlistentry><term>Belgium Datum 1972 (Lambert Conic Conformal)</term>      <listitem><para>Belgium Datum 1972 (Lambert Conic Conformal)</para>
1376          <listitem><para></para></listitem>      </listitem>
     </varlistentry>  
1377    
1378      <varlistentry><term>Gauss-Boaga Zone 1 (Italy, Transverse Mercartor)</term>      <listitem><para>Gauss-Boaga Zone 1 (Italy, Transverse Mercartor)</para>
1379          <listitem><para></para></listitem>      </listitem>
     </varlistentry>  
1380    
1381      <varlistentry><term>Gauss-Krueger Zone 2 (Germany, Transverse Mercartor)      <listitem><para>Gauss-Krueger Zone 2 (Germany, Transverse Mercartor)
1382      </term>      </para>
1383          <listitem><para></para></listitem>      </listitem>
     </varlistentry>  
1384    
1385      <varlistentry><term>Reseau Geodesique Francaise      <listitem><para>Reseau Geodesique Francaise
1386      (France, Lambert Conic Conformal)</term>      (France, Lambert Conic Conformal)</para>
1387          <listitem><para></para></listitem>      </listitem>
     </varlistentry>  
1388    
1389      <varlistentry><term>UK National Grid (United Kingdom, Transverse Mercartor)      <listitem><para>UK National Grid (United Kingdom, Transverse Mercartor)
1390      </term>      </para>
1391          <listitem><para></para></listitem>      </listitem>
1392      </varlistentry>      </itemizedlist>
     </variablelist>  
1393    
1394      <para>      <para>
1395      Thuban uses the comprehensive PROJ library for projections. PROJ provides      Thuban uses the comprehensive PROJ library for projections. PROJ provides
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  Added in v.1544
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