CAPRI
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capri:gui:gui [2013/02/19 15:08] – external edit 127.0.0.1capri:gui:gui [2014/02/21 11:08] – external edit 127.0.0.1
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       <H1>Graphical User Interface</H1>       <H1>Graphical User Interface</H1>
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       <H3>Overview</H3>       <H3>Overview</H3>
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       <P><a href="../docs/Gui2013.pdf">CAPRI user manual (pdf, 6 MB, 146 pages)</a></P>       <P><a href="../docs/Gui2013.pdf">CAPRI user manual (pdf, 6 MB, 146 pages)</a></P>
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       <TABLE>       <TABLE>
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       <P>The aim of the Graphical User Interface (GUI) is threefold. Firstly, it serves as a tool       <P>The aim of the Graphical User Interface (GUI) is threefold. Firstly, it serves as a tool
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       to support the user in <B>controlling</B> the different work steps in CAPRI:</P>       to support the user in <B>controlling</B> the different work steps in CAPRI:</P>
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       <UL>       <UL>
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          <P>Data base generation, from global to regional, and to 1x1 km grid scale</P>          <P>Data base generation, from global to regional, and to 1x1 km grid scale</P>
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          <P>Generation of the <A HREF="/dokuwiki/doku.php?id=capri:concept:refrun">baseline</A></P>          <P>Generation of the <A HREF="/dokuwiki/doku.php?id=capri:concept:refrun">baseline</A></P>
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          <P>Defining and running scenarios</P>          <P>Defining and running scenarios</P>
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       </UL>       </UL>
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       <P>That task is eased by the storing <A HREF="../docs/meta.pdf">meta-data information</A> along with the quantitative results       <P>That task is eased by the storing <A HREF="../docs/meta.pdf">meta-data information</A> along with the quantitative results
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       of the different work steps.</P>       of the different work steps.</P>
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       <P>Secondly, it allows to <B>exploit</B> the results via tables, graphs and maps.</P>       <P>Secondly, it allows to <B>exploit</B> the results via tables, graphs and maps.</P>
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       <P>And thirdly, it offers <B>certain services</B> as <A HREF="../docs/batch.pdf">batch execution</A>, checking meta data, viewing GDX files,       <P>And thirdly, it offers <B>certain services</B> as <A HREF="../docs/batch.pdf">batch execution</A>, checking meta data, viewing GDX files,
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       <A HREF="../docs/javadoc.pdf">generation of HTML base documentation for the GAMS code</A> or integrating GIS geometries into the exploitation tools.</P>       <A HREF="../docs/javadoc.pdf">generation of HTML base documentation for the GAMS code</A> or integrating GIS geometries into the exploitation tools.</P>
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       <P>Technically, in order to steer the different working steps,       <P>Technically, in order to steer the different working steps,
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       the GUI generates small snippets of GAMS code which are specific for a specific       the GUI generates small snippets of GAMS code which are specific for a specific
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       run such as the Member States included, or the base year chosen, and then starts GAMS. That       run such as the Member States included, or the base year chosen, and then starts GAMS. That
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       concept allows to run CAPRI completely outside the GUI, e.g. in <A HREF="../docs/batch.pdf">batch mode</A>.</P>       concept allows to run CAPRI completely outside the GUI, e.g. in <A HREF="../docs/batch.pdf">batch mode</A>.</P>
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       <P>The different tasks are defined as objects with specific properties (base year, simulation year, scenario ..)       <P>The different tasks are defined as objects with specific properties (base year, simulation year, scenario ..)
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       which can be modified by the user. Methods allow to retrieve the quantitative results generated by the task as well       which can be modified by the user. Methods allow to retrieve the quantitative results generated by the task as well
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       as meta information.<A HREF="../docs/refactoringGUI.pdf"> Read more ..</P>       as meta information.<A HREF="../docs/refactoringGUI.pdf"> Read more ..</P>
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-      <A HREF="/dokuwiki/doku.php?id=capri:gui:regView">Try the exploitation tools out (loads 3 MByte data and java code, may take a minute) ...</A> 
  
  
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       </TD>       </TD>
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       <TD>       <TD>
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       <P aligtn="CENTER"><a href="images\gui.jpg"><img style="text-decoration: none;border: none;" src="images\gui.jpg" width="600"/></a></P>       <P aligtn="CENTER"><a href="images\gui.jpg"><img style="text-decoration: none;border: none;" src="images\gui.jpg" width="600"/></a></P>
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       </TD>       </TD>
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       </TR>       </TR>
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       </TABLE>       </TABLE>
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       <H3>Exploitation tools</H3>       <H3>Exploitation tools</H3>
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       <P>The GUI comprises a generic and powerful tool for exploitation of results. Results from       <P>The GUI comprises a generic and powerful tool for exploitation of results. Results from
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       the different work steps of CAPRI generated by GAMS are stored in GDX format (see also next section)       the different work steps of CAPRI generated by GAMS are stored in GDX format (see also next section)
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       as multi-dimensional sparse data cubes. A single scenario run at the NUTS 2 level will generate       as multi-dimensional sparse data cubes. A single scenario run at the NUTS 2 level will generate
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       close to 5 Mio non-zero data cells, a run at farm type level around 16 Mio non-zero.       close to 5 Mio non-zero data cells, a run at farm type level around 16 Mio non-zero.
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       The regional time series data base of CAPRI covers almost 15 Mio non-zeros,       The regional time series data base of CAPRI covers almost 15 Mio non-zeros,
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       and downscaling the regional scenario results to the 1x1 km grid resolution       and downscaling the regional scenario results to the 1x1 km grid resolution
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       will generate close to 30 Mio non-zero values. In order to access these huge data quantities in       will generate close to 30 Mio non-zero values. In order to access these huge data quantities in
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       a user-friendly and efficient way, an XML file defines <I>views</I> in the data.</P>       a user-friendly and efficient way, an XML file defines <I>views</I> in the data.</P>
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       <P>Each <I>view</I> is firstly characterised by a selection or filter for the different       <P>Each <I>view</I> is firstly characterised by a selection or filter for the different
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       dimensions such as regions, activities, items or scenarios. Secondly, a pivot is defined which maps the       dimensions such as regions, activities, items or scenarios. Secondly, a pivot is defined which maps the
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       data base dimension to viewport dimensions, such as the columns or rows of a table, or the regions shown in       data base dimension to viewport dimensions, such as the columns or rows of a table, or the regions shown in
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       a map. And thirdly, it defines the view type: a table, different type of graphs or a map. Fourthly, views       a map. And thirdly, it defines the view type: a table, different type of graphs or a map. Fourthly, views
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       may comprise links to other views, similar to the concept of hyperlinks in WEB pages, which allows a "drill-down"       may comprise links to other views, similar to the concept of hyperlinks in WEB pages, which allows a "drill-down"
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       like exploitation from general to specific aspects, or vice versa. The hyperlinks can also be used to       like exploitation from general to specific aspects, or vice versa. The hyperlinks can also be used to
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       refer to tables with supporing information. And lastly, the view may       refer to tables with supporing information. And lastly, the view may
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       comprise supporting information as e.g. units used for specific elements or long text descriptions.</P>       comprise supporting information as e.g. units used for specific elements or long text descriptions.</P>
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       <P>But the user maintains his freedom: he may tune the view to his own needs, by adding his own selections,       <P>But the user maintains his freedom: he may tune the view to his own needs, by adding his own selections,
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       change the pivot or the view type. Equally, fonts, color, cell sizes or properties of the graphs may be       change the pivot or the view type. Equally, fonts, color, cell sizes or properties of the graphs may be
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       set by the user. His personal settings can be stored for future session. And finally, the mapping viewer       set by the user. His personal settings can be stored for future session. And finally, the mapping viewer
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       allows for rather flexible classifications and coloring options. The details with examples are discussed       allows for rather flexible classifications and coloring options. The details with examples are discussed
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       in a chapter of the <A HREF='../docs/capri_documentation.pdf#search="Exploitation"'>CAPRI documentation</A>.</P>       in a chapter of the <A HREF='../docs/capri_documentation.pdf#search="Exploitation"'>CAPRI documentation</A>.</P>
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       <H3>Data base concept</H3>       <H3>Data base concept</H3>
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       <P>For more then a decade, CAPRI used a Data Base Management System (DBMS) realized in FORTRAN,       <P>For more then a decade, CAPRI used a Data Base Management System (DBMS) realized in FORTRAN,
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       developed by the Institute for Food and Resource Economics specifically for agricultural sector       developed by the Institute for Food and Resource Economics specifically for agricultural sector
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       models. With the new GUI becoming operational, using a SQL based DBMS was discussed. However, as all data       models. With the new GUI becoming operational, using a SQL based DBMS was discussed. However, as all data
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       and results in CAPRI are processed and produced by GAMS programs, a SQL solution would require       and results in CAPRI are processed and produced by GAMS programs, a SQL solution would require
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       generation of intermediate temporary files to pass results back and forth between the DBMS and GAMS.</P>       generation of intermediate temporary files to pass results back and forth between the DBMS and GAMS.</P>
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       <P>Fortunately, GAMS offers with the GDX format an interface to quickly pass data in and out, along       <P>Fortunately, GAMS offers with the GDX format an interface to quickly pass data in and out, along
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       with a native interface definition to exchange data with applications. For a GAMS base system,       with a native interface definition to exchange data with applications. For a GAMS base system,
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       storing all data in GDX seemed therefore a good alternative. It allows using CAPRI solely       storing all data in GDX seemed therefore a good alternative. It allows using CAPRI solely
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       building on GAMS, which eases porting CAPRI to other Operation Systems. Equally, GDX files       building on GAMS, which eases porting CAPRI to other Operation Systems. Equally, GDX files
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       can be accessed by the GDX viewer shipped with GAMS, but also with external tools.</P>       can be accessed by the GDX viewer shipped with GAMS, but also with external tools.</P>
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       <P>The final concept hence let each working step in CAPRI produce GDX files. Consecutive       <P>The final concept hence let each working step in CAPRI produce GDX files. Consecutive
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       step read those results as input. The native interface of GDX is used in the JAVA based GUI       step read those results as input. The native interface of GDX is used in the JAVA based GUI
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       to read, and where appropriate, merge the content of several GDX files in memory, and pass       to read, and where appropriate, merge the content of several GDX files in memory, and pass
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       it to exploitation tools.</P>       it to exploitation tools.</P>
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 <font size=1>Last Updated:Tuesday, October 12, 2010 <font size=1>Last Updated:Tuesday, October 12, 2010
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 </font> </font>
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