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=Coding period=
=Coding period=
===''Week 14''===
====Firm pencils down day: 20/08/2012====
* Adjusted the ''doc/docbook/system/mann/en/graph.xml'' according to the changes made on the subcommands and added a brief documentation for the '''igraph''' command.
===''Week 13''===
* Added two subcommands for the '''graph''' command: '''show''' and '''positions'''.
* Removed the previous ''graph_objects_positions'' and ''graph_structure'' commands.
* Renamed the previously named Tcl ''graph'' procedure into '''igraph''' - this command launches the interactive graph; along with this procedure, the ''src/tclscripts/graph'' was renamed into ''src/tclscripts/'''igraph''''', and the file ''src/tclscripts/graph/graph.tcl'' was renamed into ''src/tclscripts/'''igraph/igraph.tcl'''''.
* The '''igraph''' command works in MGED; when launched in Archer, an error message in outputted saying that the command is not available yet.
* Took care of some command error cases (C and Tcl).
* Again tried to integrate the previously mentioned command in Archer - Didn't find an example that would suit me. I found commands that would have procedures that use C wrapped commands but they were either working strictly for Archer or for MGED, not for both.
* Introduced a '''graph''' command and its '''show''' subcommand.
* Tried to get rid of an ''"invalid command name "graph" while executing "graph show""'' error but didn't find a solution - this appears when I run my procedure in Archer. When running this procedure in MGED, no such error appears and the graph is generated correctly.
* Enabled error message in MGED for the '''graph''' command in case the Adaptagrams library isn't available.
* Started reorganizing the '''graph''' command in subcommands.
* Added a basic brlman documentation for the '''graph''' command.
* Grouped top-level commands under a single '''graph''' command. Came up with an approach on how to tackle the following problem:  there would exist a C implemented "graph" command and also a Tcl procedure named "graph" and when ran in MGED the C one is ran instead of the Tcl one. Waiting for a response before committing the changes.
* Fixed a bug that appeared when launching Archer due to the '''graph_objects_positions''' command.
* Started work on integrating the '''graph''' command in Archer. Encountered some problems due to the fact that there isn't a corresponding ''ged_graph'' C routine that can be used. The procedure is simply defined in Tcl.
===''Week 12''===
===''Week 12''===
* Cleaned up the layout source code that was about to be committed.
* Replaced the connection lines that existed between two nodes with polylines and added arrows at the end of each connection line.
* Finished creating the routines that provide a decent layout for the graph.
* Added vertices between the nodes.
:Here is how the graph for the ''share/db/axis.g'' database looks like now:
:Commit will be made as soon as the source code is cleaned up.
* Continued working on the layout part.
* Started research and work for solving the layout issue of a graph.
* Added the '''decorate_object(struct _ged_dag_data *, char *, int)''' routine in ''src/libged/dag.cpp''. This creates a new entry into a hash table for each newly detected object and sets the entry's value depending on the type of object: ''primitive'', ''combination'', or ''something else''.
* Used these types to differently colour the rectangles in the graph editor.
* Introduced a text widget with the name of the object within each rectangle.
:Here is the window that the '''graph''' command launches for the ''share/db/axis.g'' database:
* Looked for a method to store object's colour and name related information within an Adaptagrams graph structure.
* Looked for a method to store object's color and name related information within an Adaptagrams graph structure.
:This is needed for implementing the decorative routines for each type of object. Couldn't find a method. Worked on an alternative method to store this information.
:This is needed for implementing the decorative routines for each type of object. Couldn't find a method. Worked on an alternative method to store this information.

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