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858 bytes removed ,  16 September 2020
→‎Graphics: Strip finished items, update links.
(→‎Interpreter: Strip finished items.)
(→‎Graphics: Strip finished items, update links.)
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* Implement one-to-many (Broadcast, Scatter), many-to-one (Reduce, Gather), and many-to-many (All Reduce, Allgather) communication routines
* Implement one-to-many (Broadcast, Scatter), many-to-one (Reduce, Gather), and many-to-many (All Reduce, Allgather) communication routines


=Graphics=
= Graphics =


*Correctly handle case where DISPLAY is unset. Provide --no-window-system or --nodisplay (?) option. Provide --display=DISPLAY option? How will this work with gnuplot (i.e., how do we know whether gnuplot requires an X display to display graphics)?
* Correctly handle case where DISPLAY is unset. Provide --no-window-system or --nodisplay (?) option. Provide --display=DISPLAY option? How will this work with gnuplot (i.e., how do we know whether gnuplot requires an X display to display graphics)?
 
* <strike>Implement transparency and lighting in OpenGL backend(s). A basic implementation was available in [http://octave.svn.sourceforge.net/viewvc/octave/trunk/octave-forge/extra/jhandles/ JHandles]. This needs to be ported/re-implement/re-engineered/optimized in the C++ OpenGL renderer of octave</strike>.


* Implement a Cairo-based renderer for 2D-only graphics, with support for PS/PDF/SVG output (for printing).
* Implement a Cairo-based renderer for 2D-only graphics, with support for PS/PDF/SVG output (for printing).
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* On 'imagesc' plots, report the matrix values also based on the mouse position, updating on mouse moving.
* On 'imagesc' plots, report the matrix values also based on the mouse position, updating on mouse moving.


* Add map-creating capabilities similar to the Matlab [http://www.mathworks.com/help/map/functionlist.html Mapping toolbox] for inclusion in the Octave Forge [https://sourceforge.net/p/octave/mapping mapping package].
* Add map-creating capabilities similar to the Matlab [https://www.mathworks.com/help/map/functionlist.html Mapping toolbox] for inclusion in the Octave Forge [https://sourceforge.net/p/octave/mapping mapping package].


* Add data cursor to trace data values in figure.
* Add data cursor to trace data values in figure.
== Lighting ==
<strike>Implement transparency and lighting in OpenGL backend(s). A basic implementation is available in [http://octave.svn.sourceforge.net/viewvc/octave/trunk/octave-forge/extra/jhandles/ JHandles]. This needs to be ported/re-implement/re-engineered/optimized in the C++ OpenGL renderer of Octave.</strike>
== Object selection in OpenGL renderer ==
<strike>This project is about the implementation of a selection method of graphics elements within the OpenGL renderer [http://glprogramming.com/red/chapter13.html]</strike>


== Non-OpenGL renderer ==
== Non-OpenGL renderer ==
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Text objects in plots (like titles, labels, texts...) in the OpenGL renderer only support plain text and TeX. The latter consists of a very limited subset of the TeX language. On the other hand, the LaTeX formatting support is expected to provide full LaTeX capabilities. There are various approaches that can be used:
Text objects in plots (like titles, labels, texts...) in the OpenGL renderer only support plain text and TeX. The latter consists of a very limited subset of the TeX language. On the other hand, the LaTeX formatting support is expected to provide full LaTeX capabilities. There are various approaches that can be used:
* Use an external LaTeX engine: this is the most straightforward, but it requires users to install a LaTeX distribution and setup Octave to use it.
* Use an external LaTeX engine: this is the most straightforward, but it requires users to install a LaTeX distribution and setup Octave to use it.
* Use an external library that supports LaTeX syntax, e.g. [http://forge.scilab.org/index.php/p/jlatexmath/ JLaTeXMath] a Java API to display LaTeX code, [https://github.com/nathancarter/qtmathjax qtmathjax] a Qt based library that executes MathJax in a background web page.
* Use an external library that supports LaTeX syntax, e.g. [https://github.com/opencollab/jlatexmath JLaTeXMath] a Java API to display LaTeX code, [https://github.com/nathancarter/qtmathjax qtmathjax] a Qt based library that executes MathJax in a background web page.
* Implement our own LaTeX parser and renderer. The matplotlib project [http://matplotlib.sourceforge.net/users/usetex.html has already done this in Python] and might be used as an example of how to do this in Octave. There is also [https://github.com/jkriege2/JKQtPlotter JKQtPlotter], a Qt based plotting application which implements its own LaTeX parser/renderer in C++.
* Implement our own LaTeX parser and renderer. The matplotlib project [http://matplotlib.sourceforge.net/users/usetex.html has already done this in Python] and might be used as an example of how to do this in Octave. There is also [https://github.com/jkriege2/JKQtPlotter JKQtPlotter], a Qt based plotting application which implements its own LaTeX parser/renderer in C++.


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