C++ code visualizer

Resources:
[1] http://pythontutor.com/cpp.html, example https://goo.gl/JhKhnq

3D Models & tools

1) Open .obj 3D format

view3dscene
$sudo apt-get install view3dscene

meshlab - System for processing and editing triangular meshes
$sudo apt-get install meshlab

g3dviewer
$sudo apt-get install  g3dviewer

Other tools

1. glc_player which is said to read-and-show '.3ds', '.obj', '.stl', '.off', '.3dxml', and Collada ('.dae') files
2. g3dviewer which is said to read-and-show '.3ds', '.lwo', '.obj', '.dxf', '.md2', '.md3', '.wrl', '.vrml', '.dae' (COLLADA), '.ase' (ASCII Scene Exporter), '.ac' (AC3D)
3. ivview which reads-and-shows '.iv' and VRML1 files
4. paraview which reads-and-shows '.ply' and '.vt*' files
5. varicad-view which reads-and-shows '.dwg' (2D), '.dxf' (2D only?), '.igs' (maybe?), '.stp' (3D) files 
6. wings3d - Nendo-inspired 3D polygon mesh modeller (legacy)
7. gmsh - Three-dimensional finite element mesh generator
8. libadmesh-dev - Tool for processing triangulated solid meshes.
9. libgmsh-dev - Three-dimensional finite element mesh generator.
10. libmadlib-dev - mesh adaptation library
11. libnglib-dev - Automatic 3d tetrahedral mesh generator development files
12. libscotch-dev - programs and libraries for graph, mesh and hypergraph partitioning
13. netgen - Automatic 3d tetrahedral mesh generator
14. libtriangle-dev - High-quality 2-D mesh generator development files

Resources
 [1] mview http://mview.sourceforge.net/

Models
  [1] .max, .obj, blender, etc. www.turbosquid.com
  [1] http://tf3dm.com/

Python extending functions from C/C++

References
[1] https://docs.python.org/3/library/ctypes.html

https://cython.readthedocs.io/en/latest/src/tutorial/cython_tutorial.html
https://opensourceforu.com/2010/05/extending-python-via-shared-libraries/
https://en.wikibooks.org/wiki/Python_Programming/Extending_with_C%2B%2B

Linear Regresion

[1] Regresion linear http://onlinestatbook.com/2/regression/intro.html
[2] https://towardsdatascience.com/linear-regression-with-example-8daf6205bd49

Z Stack Resources

Resources
[1] Head images   http://bids.neuroimaging.io/

pip3 ImportError: cannot import name 'main'

In linux you need to change the file: /usr/bin/pip3 from:

from pip import main
if __name__ == '__main__':
    sys.exit(main())

to:

from pip import __main__
if __name__ == '__main__':
    sys.exit(__main__._main())

 

 

c++ realloc references

https://en.cppreference.com/w/c/memory/realloc
https://www.tutorialspoint.com/c_standard_library/c_function_realloc.htm

quadtree

References:
[1] http://www.lcad.icmc.usp.br/~jbatista/procimg/quadtree_neighbours.pdf
[2] http://homepage.divms.uiowa.edu/~kvaradar/sp2012/daa/ann.pdf
[3] http://web.archive.org/web/20120907211934/http://ww1.ucmss.com/books/LFS/CSREA2006/MSV4517.pdf
[3] operations cost https://arxiv.org/pdf/1712.05591.pdf
Resources:

[1] quadtree neighbors https://bl.ocks.org/mbostock/4343214
[2] neighbors https://gist.github.com/patricksurry/6478178
[3] neighbors https://github.com/geidav/quadtree-neighbor-finding/blob/master/neighbors.py
[4] https://geidav.wordpress.com/2017/12/02/advanced-octrees-4-finding-neighbor-nodes/
[5] for check https://github.com/xoolive/quadtree

[6] gaussian kd-tree https://www.cg.tuwien.ac.at/courses/Visualisierung2/HallOfFame/2012/7-Labschuetz/Homepage/index.html#References
[7] quadtree over CUDA source code http://ecee.colorado.edu/~siewerts/extra/code/example_code_archive/a490dmis_code/CUDA/cuda_work/samples/Samples.html

Linux: mount folder to different folders

Code:

mount -o bind /media/disk1/pictures /home/user1/pictures
mount -o bind /media/disk1/pictures /home/user2/pictures

for add a fstab entry to auto-mount at startup.

Code:

/media/disk1/pictures /home/add1cker/pictures none defaults,bind 0 0

OpenGL Tutorial

 Common libs for start

$sudo apt-get install freeglut3-dev

Matrix Class [3]

Error:
_dl_check_map_versions: Assertion `needed != ((void *)0)' failed!

Fixed using -lpthread parameter [2].


References:


[1] https://www.opengl.org/wiki/Programming_OpenGL_in_Linux:_GLX_and_Xlib

[2]  http://stackoverflow.com/questions/20007961/error-running-a-compiled-c-file-uses-opengl-error-inconsistency-detected
[3] http://www.songho.ca/opengl/index.html
     http://www.songho.ca/opengl/gl_matrix.html#example1
[4] Image Libraries
      https://www.opengl.org/wiki/Image_Libraries
[5] SFML
      http://www.sfml-dev.org/tutorials/2.3/start-linux.php

git commands

References:
[1] https://git-scm.com/book/en/v2/Git-Branching-Basic-Branching-and-Merging