User:KaKiLa

Personal Data

Juan Pablo Carbajal

Sketchpad

test syntax highlight

Code: Loading the file as polygon compatible with geometry package

function y = deserializeInt (data) y = bitpack ( cell2mat( arrayfun( @(x)bitget(x,1:8), data, "UniformOutput", false ) )', "uint16"); y = double (y); endfunction

getting help

1. know the function --> help function_name or help function_name.
2. Know what to do but not the function name --> lookfor what_to_do.
3. Can't remember the fullname of a function (or have a guess) --> partial_name_of_function then press <TAB-key> twice
4. Did it once but can't remeber --> <Ctrl>+<R> to search the history.

TODO list

• Write description of packages Geometry package,Mechanics package,Robotics package.
• Start the API for RSB.

Add remove option to autoload

reverse autoload

make output format a valid input format

An output format that prints valid input commands, so one can copy and re-execute the code. From IRC

(04:57:05 PM) jwe: It might not be too hard to implement what you want. There is a flag in the pr-output functions for pr_as_read_format and many (but probably not all) of the types that are printed there do something with that. And it is not hooked in to the format function, so you can't enable it.

(04:57:31 PM) jwe: pr-output.cc and pr_as_read_syntax

extend sub2ind and ind2sub

We are extending sub2ind and ind2sub to work with triangular matrices. Currently private functions of mechanics. A string argument triggers the behavior. The string argument can be "triu" or "tril". After this str argument we accept an extra scalar value indicating that the triangular matrix is off diagonal (as in tril and triu). So, the first modification to the C++ code will be

1. Check if any of the argument is a str.
2. Check what kind of triangular matrix (up or low).
3. If the argument after the str argument is a scalar, it indicates off diagonal triangular matrix (we do not have algo for that yet, though).

updating pkg.m

Commands used with pkg

   pkg install image-*

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   pkg load image

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   pkg unload image

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   pkg uninstall image

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   pkg install -forge image

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   pkg install -verbose -forge -nodeps signal

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   pkg install struct-old.tar.gz

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   pkg update struct

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   pkg update

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   pkg load all

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   pkg unload all

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   pkg list

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   installed_packages = pkg ("list")

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   [user_packages, system_packages] = pkg ("list")

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   oct_forge_pkgs = pkg ("list", "-forge")

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   pkg describe image

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   pkg describe -verbose image 

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   pkg describe -verbose all 

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   desc = pkg ("describe", "signal", "image")

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   [desc, flag] = pkg ("describe", "signal", "image")

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   pkg prefix

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   pkg prefix /tmp

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   pfx = pkg ("prefix")

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   pkg prefix /tmp /tmp

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   pfx = pkg ("prefix")

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   pkg build -verbose /tmp image-*

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   pkg rebuild signal

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   pkg local_db /tmp/.octave_packages.db

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   pkg local_db

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   pkg global_db /tmp/.octave_packages.db

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   pkg global_db

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   pkg whereis rgbplot

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   pkg whereis -forge rgbplot

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   pkg install -url "http://users.elis.ugent.be/~jcarbaja/DRD/DRD_files/" drd-1.1.0.tar.gz

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Octave - Forge

• quaternion mpower.m

Non-negative matrix factorization

• Add nmf_bpas and nmf-pg to linear-algebra ✔

• Get nmf_toolbox from DTU under free license. ✔
  • Add it to linear-algebra and create nnmf.m compatible with MATLAB calling all the methods.

Biomechanics

• Ask Stewart Heitmann to release under GPLv3.
• Ask Andrea d'Avella to release under GPLv3 or equivalent. Waiting for answer. KaKiLa 03:54, 9 March 2012 (PST)

Contents

• Muscle models
  • Hill model.
  • Voight model.

• Locomotion
  • SLIP model, multiple generalized variables.

• Reaching
  • Tendulum, tendon driven pendulum.

Robotics Toolbox

Robotics_package

• Port Robotics Toolbox. Started: Google group. Peter released an old version for Octave under GPLv3.
• Complete quaternion_oo wrapper.
• Ask Emanuel Todorov to release under GPLv3 or equivalent.
• MPK apparently is non-Free. Discussing.

Matgeom

Geometry_package

Working on graphs:

• Porting. ✔
• Write demos.

Finish the port:

• polygons2d
• meshes
• polygons3d

Development:

• iscw and isccw
• cw2ccw and ccw2cw

Mechanics

Mechanics_package

• Consider multiple makefiles. Look how it was done in instrument-control
• DMOC code generation.
• Improve verlet integrator. A odepkg compatible version?

TISEAN

• Start port of TISEAN.

Gaussian Processes

• Asked for a GPLv3 version of GPML. They answer but license is FreeBSD. A new version is comming out in June 2012, so I will wait to start the port.

real2rgb

Porting the package. May be good to port SC as well