Houdini Repositories

 

 

host: ftp.sidefx.com

Houdini5.5 to Houdini19.5 Installers (Windows.exe/Linux.tar.gz/Macosx.dmg)

Jetson Nano installation

 

Installing cuda11 in Jetson Nano [1]. All instructins works, but doesn't run on it. Better is cuda10.

 

[1] https://jfrog.com/connect/post/installing-cuda-on-nvidia-jetson-nano/

 

 

Errors:

The following packages have unmet dependencies

...
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).

Fix:

sudo apt-get -o dpkg::Options::="--force-overwrite" install --fix-broken

 

Python and OpenCV issues

Error:

   import cv2, numpy as np,time
 File "/home/fincahuanaco/.local/lib/python3.7/site-packages/cv2/__init__.py", line 3, in <module>
   from .cv2 import *
ImportError: numpy.core.multiarray failed to import

 

Solution:

$ python3 -m pip install opencv-python==4.0.0.21

$ python3 -m pip list  
 

opencv-python          4.0.0.21

numpy                  1.15.0

 

Other combinations

opencv_python==4.4.0.46 and numpy==1.19.3 works.

 

AWS Python issues

$ curl -O https://bootstrap.pypa.io/get-pip.py
$ python3 get-pip.py --user
 

References:

[1] https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/eb-cli3-install-linux.html

 

AWS Common commands

 

Without ifconfig command

public IP

$ curl ifconfig.me

private IP

$ ip addr 

References:

[1] https://opensource.com/article/18/5/how-find-ip-address-linux

Vocal Remover

 

[1] AI Vocal Remover and Isolation https://vocalremover.org/

[2] AI Vocal remover, it split in to tracks https://multimedia.easeus.com/vocal-remover/    #2024

[3] Split Music and Vocal https://studio.mikrotakt.app/  #2024

 

Register as researcher in Peru country

 

Sunedu 

Renacyt

1) https://ctivitae.concytec.gob.pe/appDirectorioCTI/

2) http://regina.concytec.gob.pe 

3) https://www.gob.pe/9648-ser-parte-del-registro-nacional-cientifico-tecnologico-y-de-innovacion-tecnologica-renacyt

 4) https://www.gob.pe/9603

[5] Niveles I-VII https://conocimiento.concytec.gob.pe/preguntas/renacyt/cuales-son-los-niveles-de-clasificacion-de-los-investigadores-renacyt/

[6] Reglamento https://portal.concytec.gob.pe/images/renacyt/reglamento_renacyt_version_final.pdf

[7] Qualis/BR https://homepages.dcc.ufmg.br/~bigonha/Ranking/cc-qualis-conferencias-2016-ranking.pdf

[8] SCImago Journal Rank http://www.scimagojr.com/journalrank.php

[9] JCR https://jcr.clarivate.com/jcr/browse-journals

[10] Global Ranking  https://www.topuniversities.com/university-rankings/world-university-rankings/2024

[11] Reglamento de Evaluación https://www.unsa.edu.pe/transparencia/docs/regl-ensenanza-aprendizaje.pdf

(keyword:unsa  san agustin nota vigesimal)

[12] EPIS Egresados por año https://fips.unsa.edu.pe/ingenieriadesistemas/lista-de-egresados/

ffmpeg: Extract audio and reinsert a new for use in whatsapp

 

#Extract audio

ffmpeg -i mad-pi.mp4 -map 0:a:0 mad-pi_audio.wav 

 

#Extract reinsert new audio

ffmpeg -i mad-pi.mp4 -i mad-pi_audiohd.mp3 -c:v copy -map 0:v:0 -map 1:a:0 new.mp4
 

#reencode for whatsapp

ffmpeg -i new.mp4 -c:v libx264 -profile:v baseline -level 3.0 -pix_fmt yuv420p working.mp4

 

Python tools for Web Developers

 

[1] FastAPI https://fastapi.tiangolo.com/

[2] Dash Python https://dash.plotly.com/background-callbacks

 

Ringtones: Download mp3

 

 

Resources:

[1] Easy download https://mp3-ringtone.com/

[2] Play and using FireBug download https://www.zedge.net/find/ringtones/2023

ffmpeg: Extract mp3 from video

 

 ffmpeg -i mad-principio_peter.mp4 -vn -y out1.mp3 #9M

 

ffmpeg -i mad-principio_peter.mp4 -f mp3 -ab 192000 -vn out2.mp3 #14M

ffmpeg -i mad-principio_peter.mp4 -f mp3 -ab 128000 -vn out3.mp3 #9M
ffmpeg -i mad-principio_peter.mp4 -vn -acodec libmp3lame out4.mp3 #9M

ffmpeg -i mad-principio_peter.mp4 -acodec libmp3lame -ab 128k out5.mp3 #9M

ffmpeg -i gym.mp4 -f webm -c:v libvpx -b:v 1M -acodec libvorbis gym.webm -hide_banner

Second

ffmpeg -i sample.avi -q:a 0 -map a sample.mp3  #complete

ffmpeg -i sample.avi -ss 00:03:05 -t 00:00:45.0 -q:a 0 -map a sample.mp3 #fraction

Parameters :

-q:a 0 for variable bit rate

-ss starting timestamp

-t  the encoding time (If you don't specify, it will go to the end)

-map 0:a:3 selects audio stream #4 (ffmpeg starts counting from 0) 

** specific the timestamps in HH:MM:SS.xxx format.

 

References:

[1] https://json2video.com/how-to/ffmpeg-course/ffmpeg-extract-audio.html

Download zip file from Google Drive

 First

Share your file in GD (with anybody access by link) and get FILEID

Second

Execute next code(replace FILEID and choose FILENAME):

wget --load-cookies /tmp/cookies.txt "https://docs.google.com/uc?export=download&confirm=$(wget --quiet --save-cookies /tmp/cookies.txt --keep-session-cookies --no-check-certificate 'https://docs.google.com/uc?export=download&id=FILEID' -O- | sed -rn 's/.*confirm=([0-9A-Za-z_]+).*/\1\n/p')&id=FILEID" -O FILENAME && rm -rf /tmp/cookies.txt

 

Note:

Previous methods doesn't work, because now GD needs confirmation, then using cookies it's possible.

Ubuntu NFS Installation

On Server (10.10.7.229):

$ sudo apt install nfs-kernel-server  #install server

$ sudo mkdir -p /mnt/nfs_drive  #create share point

$ sudo chown -R nobody:nogroup /mnt/nfs_drive  #no owner

$ sudo chmod 777 /mnt/nfs_drive  #set r/w permission

$ sudo vi /etc/exports  #define clients grants
 

/mnt/nfs_drive 10.10.7.218(rw,sync,no_subtree_check) #mine
/mnt/nfs_drive 10.10.7.235(rw,sync,no_subtree_check) #houdini

$ sudo exportfs -a

$ sudo systemctl restart nfs-kernel-server
 

On Client: 

$ sudo apt install nfs-common 

$ sudo mkdir -p /mnt/nfs_drive_client   #mirror

$ sudo mount 10.10.7.229:/mnt/nfs_drive /mnt/nfs_drive_client

Notes: 

$ sudo ufw status  #verify the firewall, more details in reference[0]

References: 

[0] Working https://linuxhint.com/install-and-configure-nfs-server-ubuntu-22-04/

[1] https://www.tecmint.com/install-nfs-server-on-ubuntu/

qemu bridge to enable network during simulation

 Install brctl

 sudo apt install bridge-utils

Add new virtual bridge

sudo brctl addbr virbr0
sudo brctl addif virbr0 eth0 

Check

/etc/qemu-ifup and /etc/qemu-ifdown  #files
 

 

 

 

Candide Model Applications

 

[0] Model and code https://github.com/wobushizhanghua/candide3-face/blob/master/src/main.cpp

[1] Landmark 3D https://webspace.science.uu.nl/~veltk101/publications/art/wss06.pdf 

[2] https://github.com/MarekKowalski/FaceSwap

[3] https://github.com/jorticus/face-replace/blob/master/README.md

 

Gimp Python-Fu

 

[0] https://www.gimp.org/docs/python/index.html#PREGION-OBJECT-MEMBERS

[1] https://www.gimp.org/docs/python/index.html#DRAWABLE-OBJECT-METHODS

[2] http://myvirtualbrain.blogspot.com/2012/06/gimp-python-fu-very-basics.html 

[3] Samples https://github.com/jfmdev/PythonFuSamples

[4] https://github.com/gummyCowboy/GIMP-python-fu

[5] https://gist.github.com/garystafford/5259576a7e9299d5b80284489aa25fc3

OnLine Animation

[0] gif editor crop, mp4 to gif https://ezgif.com

[1] https://www.powtoon.com/?locale=en

[2] https://www.animaker.com/

[3] https://biteable.com/

 

 

Houdini Trying to use textures

 

[1] How to use textures on Houdini

http://wordpress.discretization.de/houdini/home/advanced-2/textures/

[2] Repository of textures with normals

https://opengameart.org/content/50-free-textures-4-normalmaps

[3] Textures for Blender

https://polyhaven.com/textures/brick/outdoor/wall

[4] HDRs (Environment Ilumination patterns) https://polyhaven.com/hdris

NVIDIA tools

 

 

[1] https://github.com/NVIDIA/warp

Ubuntu upgrade cmake

 

1. Download https://cmake.org/download/

2. Unpack and enter to folder to execute commands

./bootstrap
make -j$(nproc)
sudo make install

 References

[1] https://askubuntu.com/questions/355565/how-do-i-install-the-latest-version-of-cmake-from-the-command-line

 

Linux: Debuging and Inspecting binary files and libraries

 

 

$ nm libmanson.so | grep -n apply
1:00000000000058ef T apply

 

Python tools

#Force to install a version Python-3.7.4

 wget https://www.python.org/ftp/python/3.7.4/Python-3.7.4.tgz

tar xvf Python-3.7.4.tgz
cd Python-3.7.4
./configure --enable-optimizations --with-ensurepip=install
make -j 8
sudo make altinstall



#Install pip module into any version of Python

curl -o get-pip.py https://bootstrap.pypa.io/pip/get-pip.py
python3.8 get-pip.py  #or
python3.9 get-pip.py

Stock Price Prediction - data source

 

[1] Nasdaq API https://data.nasdaq.com/sign-up 

[2] API https://data.nasdaq.com/tools/python (API is in setting option)

ML Resources

 

[1] Machine Learning Simplified https://themlsbook.com/

 

 

 

3D Design software

 

 

[1] Tools ESP https://all3dp.com/es/1/mejores-programas-diseno-3d-gratis-modelado-3d

 

Convert webp to png

 

Any file to PNG

$ sudo apt install webp

$ for i in *.webp; do name=`echo "$i" | cut -d'.' -f1`; echo "$name"; dwebp "$i"
 -o "${name}.png"; done


Add to Nautilus Script

fincahuanaco@pisces:~/.local/share/nautilus/scripts$ cat toPNG   
dwebp $1 -o "$1.png" 
rm $1


$chmod +x toPNG 

Updated to Selection to PNG (2023)

#!/bin/bash
count=0 
success=0

# Transform command line arguments (if provided)
[[ -z "$NAUTILUS_SCRIPT_SELECTED_FILE_PATHS" ]] &&
    NAUTILUS_SCRIPT_SELECTED_FILE_PATHS=$(printf "%s\n" "$@")

# Process each file in turn
while IFS= read -r src
do
    if [[ -f "$src" ]]
        then
      # Target
      dst="${src}.png"

      # Primary conversion to PNG
      step=0
    
      dwebp $src -o $dst  && ((step++))

      # Remove src
      if [[ step -eq 1 ]]
      then
        rm $src && ((step++))
      fi

      # Update
      if [[ step -eq 2 ]]
      then
          ((success++))
      fi

      # Count it
      ((count++))
    fi

done <<<"$NAUTILUS_SCRIPT_SELECTED_FILE_PATHS"

[[ count -gt 1 ]] &&
    notify-send "Conversion finished ($success files of $count)"

exit $((count - success)) 

AVIF format support

[1] libavif https://github.com/AOMediaCodec/libavif/ 

 
References:

[1] https://unix.stackexchange.com/questions/710013/making-a-bash-script-apply-to-only-selected-files-nautilus 

Linux Libraries path

#Cuda 8.0 Settings
export CUDA_HOME=/usr/local/cuda-8.0
export LD_LIBRARY_PATH=${CUDA_HOME}/lib64  
PATH=${CUDA_HOME}/bin:${PATH}


#Cuda 9.1 Settings
export CUDA_HOME=/usr/local/cuda-9.1
export LD_LIBRARY_PATH=${CUDA_HOME}/lib64  
PATH=${CUDA_HOME}/bin:${PATH}


#Cuda 9.2 Settings
export CUDA_HOME=/usr/local/cuda-9.2
export LD_LIBRARY_PATH=${CUDA_HOME}/lib64  
PATH=${CUDA_HOME}/bin:${PATH}

 

$ LD_LIBRARY_PATH=. ./programtest  #direct execution
 

$ echo $LD_LIBRARY_PATH  
/usr/local/cuda-8.0/lib64
 

$ ls /etc/ld.so.conf.d
cuda-8-0.conf                   opencv.conf
fakeroot-x86_64-linux-gnu.conf  x86_64-linux-gnu.conf
glew.conf                       x86_64-linux-gnu_EGL.conf
i386-linux-gnu.conf             x86_64-linux-gnu_GL.conf
libc.conf                       zz_i386-biarch-compat.conf

$ldconfig -p  #list libraries

$sudo ldconfig #update paths

 

 


 

C/C++ Tools

 

[1] BIC Interactive C tracer https://github.com/hexagonal-sun/bic

Miner cryptocurrency

 

[0] Card power https://whattomine.com/ 

[1] Linux Dodge https://www.youtube.com/watch?v=Ng-OU38-RjY

     Tool for mine Dodge https://xmrig.com/download

[2] Linux bittorrent https://www.youtube.com/watch?v=y5EWimXPOD0 

[3] Linux Minero(Alternative to xmrig) https://www.youtube.com/watch?v=NMMiT_eMd-s

[1] Windows tool https://unmineable.com/coins/MATIC

[2] How to mine Matic ESP https://www.youtube.com/watch?v=m_qLQQSWRW0

 

Cryptomarket Trading and bots

Bots

[1] Master disseration about bots https://repositorio.ufpe.br/bitstream/123456789/30495/1/DISSERTA%C3%87%C3%83O%20Severino%20Mizael%20da%20Silva.pdf

[2] Api info https://www.mercadobitcoin.com.br/trade-api/

[3] Documentation https://www.mercadobitcoin.com.br/docv4#section/Overview 

[3] Documentation v5.3 https://api.mercadobitcoin.net/api/v4/docs

[3] Glossary https://www.mercadobitcoin.com.br/trade-api/#glossario-trade-api

[4]  Api Wrapper MB

       https://github.com/mbampi/mercado-bitcoin 

       https://github.com/samuelfac/mb-api-client-python

[5] Api Wrapper Binance https://python-binance.readthedocs.io/en/latest/

 

Other Strategies

[1] https://zignaly.com/

[2] Free option/triggers https://www.cryptohopper.com/pricing 

[3] Copy trading https://www.napbots.com

[4] Bots $15 / month  https://tradesanta.com/en/pricing 

[5] 1 free Bot https://3commas.io/pricing

[6] AI powered https://signalboa.com

[7] Bots https://bitsgap.com/pricing/

 

Paraview Convert VTK file to PLY using Paraview script

 

1. vtk2ply 

from paraview.simple import *

import sys

pFrame30vtk = LegacyVTKReader(FileNames=[sys.argv[1]])

SaveData(sys.argv[2], proxy=pFrame30vtk)

QR tools

 

Resources:

[1] Url to QR code https://www.the-qrcode-generator.com

[2] Text to QR code https://goqr.me

Rip current detection

 

[1] Correntes de retorno https://www.youtube.com/watch?v=yKvDOzvjApE

[2] Rip Current  https://www.youtube.com/watch?v=RJ4hcaJ91TY

[3] Paper 2021 https://arxiv.org/pdf/2102.02902.pdf

 

3D grid savig methods using struct.pack

 

Python version for ints

def save2grid(filename,volume,dimx,dimy,dimz):

  with open(filename, "wb") as file:
    for i in range(dimx):
      for j in range(dimy):
        for k in range(dimz):
          f = (volume[i][j][k]*255).astype(np.uint8) #numpy.uint8
          #print(type(f))
          b = struct.pack('B', f)  #was f
          file.write(b)
          
def save2gridfast(filename,volume,dimx,dimy,dimz):
  flat=volume.reshape((dimx*dimy*dimz))
  flat=(flat*255).astype(np.uint8)
  with open(filename, "wb") as file:
       b = struct.pack('%sB' % len(flat), *flat)
       file.write(b) 

Python version for floats

def save2grid(filename,volume,dimx,dimy,dimz):

  with open(filename, "wb") as file:
    for i in range(dimx):
      for j in range(dimy):
        for k in range(dimz):
          f = volume[i][j][k] #[3.14, 2.7, 0.0, -1.0, 1.1]
          b = struct.pack('f', f)
          file.write(b)
def save2grid2(filename,volume,dimx,dimy,dimz):
  flat=volume.reshape((dimx*dimy*dimz))
  with open(filename, "wb") as file:
    for i in range(dimx*dimy*dimz):
       f = flat[i]
       b = struct.pack('f', f)
       file.write(b)
def save2grid3(filename,volume,dimx,dimy,dimz):
  flat=volume.reshape((dimx*dimy*dimz))
  with open(filename, "wb") as file:
       b = struct.pack('%sf' % len(flat), *flat)
       #b = struct.pack('f', f)
       file.write(b)

Update Chrome in Ubuntu

 

# Install

# via http://askubuntu.com/questions/510056/how-to-install-google-chrome

wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add - 

sudo sh -c 'echo "deb http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list'

sudo apt-get update 

sudo apt-get install google-chrome-stable

# Update

sudo apt-get --only-upgrade install google-chrome-stable

Time series forecasting

To review

 

[1] https://machinelearningmastery.com/how-to-develop-lstm-models-for-time-series-forecasting/

[2] https://www.tensorflow.org/tutorials/structured_data/time_series

[3] https://analyticsindiamag.com/tutorial-on-univariate-single-step-style-lstm-in-time-series-forecasting/

[4] https://towardsdatascience.com/multivariate-time-series-forecasting-with-transformers-384dc6ce989b

 

 

Houdini 18 - Changing temp directory

 

Setting temp directory

$ locate houdini.env

/home/cloud/houdini18.0/houdini.env

#
# Houdini Environment Settings
#
# The contents of this file are read into the environment
# at startup.  They will override any existing entries in
# the environment.
#
# The syntax is one entry per line as follows:
#    VAR = VALUE
#
# Values may be quoted
#    VAR = "VALUE"
#
# Values may be empty
#    VAR =  
#

# Example:
#
# HOUDINI_NO_SPLASH = 1


HOUDINI_TEMP_DIR = /home/cloud/.houdinitmp

 

 

DualSPHysics Simulation pipeline

 

First Step: Create geometry

[1] FreeCAD https://www.freecadweb.org/downloads.php

[2] Plugin DesignSPHysics https://github.com/DualSPHysics/DesignSPHysics

Second Step: Compile/Install DualSPHysics

[1] How to https://melhorum.blogspot.com/2019/07/dualsphysics.html

Third Step: Run smulation CPU or GPU

[1] ...

Fourth Step: Polygonize/Render

[1] ...

 

 

Video tools online

Rotate/Crop/Resize

[1] https://ezgif.com/rotate-video

[2] Fast https://www.rotatevideo.org/ 

Linux check input ports

 $ sudo cat /proc/ioports

0000-0cf7 : PCI Bus 0000:00
 0000-001f : dma1
 0020-0021 : pic1
 0040-0043 : timer0
 0050-0053 : timer1
 0060-0060 : keyboard
 0061-0061 : PNP0800:00
 0064-0064 : keyboard
 0070-0071 : rtc0
 0080-008f : dma page reg
 00a0-00a1 : pic2
 00c0-00df : dma2
 00f0-00ff : PNP0C04:00
   00f0-00ff : fpu
 0290-0297 : pnp 00:03
 0378-037a : parport0
 037b-037f : parport0
 03c0-03df : vesafb
 03f8-03ff : serial
 0400-041f : 0000:00:1f.3
 04d0-04d1 : pnp 00:04
 0500-053f : 0000:00:1f.0
 0778-077a : parport0
 0800-087f : 0000:00:1f.0
   0800-087f : pnp 00:04
     0800-0803 : ACPI PM1a_EVT_BLK
     0804-0805 : ACPI PM1a_CNT_BLK
     0808-080b : ACPI PM_TMR
     0820-082f : ACPI GPE0_BLK
     0830-0833 : iTCO_wdt.0.auto
     0850-0850 : ACPI PM2_CNT_BLK
     0860-087f : iTCO_wdt.0.auto
0cf8-0cff : PCI conf1
0d00-ffff : PCI Bus 0000:00
 1000-1fff : PCI Bus 0000:05
 2000-2fff : PCI Bus 0000:04

$ cat /proc/bus/input/devices

I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=PNP0C0C/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input0
U: Uniq=
H: Handlers=kbd event0  
B: PROP=0
B: EV=3
B: KEY=10000000000000 0

I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=LNXPWRBN/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXPWRBN:00/input/input1
U: Uniq=
H: Handlers=kbd event1  
B: PROP=0
B: EV=3
B: KEY=10000000000000 0

I: Bus=0003 Vendor=046d Product=c016 Version=0110
N: Name="Logitech Optical USB Mouse"
P: Phys=usb-0000:00:1d.0-1/input0
S: Sysfs=/devices/pci0000:00/0000:00:1d.0/usb6/6-1/6-1:1.0/0003:046D:C016.0001/i
nput/input5
U: Uniq=
H: Handlers=mouse0 event2  
B: PROP=0
B: EV=17
B: KEY=70000 0 0 0 0
B: REL=103
B: MSC=10

I: Bus=0003 Vendor=045e Product=0750 Version=0111
N: Name="Microsoft Wired Keyboard 600"
P: Phys=usb-0000:00:1d.0-2/input0
S: Sysfs=/devices/pci0000:00/0000:00:1d.0/usb6/6-2/6-2:1.0/0003:045E:0750.0002/i
nput/input6
U: Uniq=
H: Handlers=sysrq kbd event3 leds  
B: PROP=0
B: EV=120013
B: KEY=1000000000007 ff9f207ac14057ff febeffdfffefffff fffffffffffffffe
B: MSC=10
B: LED=7

I: Bus=0003 Vendor=045e Product=0750 Version=0111
N: Name="Microsoft Wired Keyboard 600"
P: Phys=usb-0000:00:1d.0-2/input1
S: Sysfs=/devices/pci0000:00/0000:00:1d.0/usb6/6-2/6-2:1.1/0003:045E:0750.0003/i
nput/input7
U: Uniq=
H: Handlers=sysrq kbd event4  
B: PROP=0
B: EV=10001f
B: KEY=3f0003007f 0 0 4c3ffff17aff32d bf54445600000000 1 130f938b17c007 ffff7bfa
d971dfff febeffdfffefffff fffffffffffffffe
B: REL=40
B: ABS=10100000000
B: MSC=10

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel Front Mic"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input8
U: Uniq=
H: Handlers=event5  
B: PROP=0
B: EV=21
B: SW=10

$sudo cat /dev/input/event3 #test if it's working

Linux Touchpad issues

 

xinput list

⎡ Virtual core pointer                          id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ Dell Dell Universal Receiver              id=11   [slave  pointer  (2)]
⎜   ↳ AlpsPS/2 ALPS DualPoint TouchPad          id=16   [slave  pointer  (2)]
⎜   ↳ AlpsPS/2 ALPS DualPoint Stick             id=15   [slave  pointer  (2)]
⎣ Virtual core keyboard                         id=3    [master keyboard (2)]
   ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
   ↳ Power Button                              id=6    [slave  keyboard (3)]
   ↳ Video Bus                                 id=7    [slave  keyboard (3)]
   ↳ Power Button                              id=8    [slave  keyboard (3)]
   ↳ Sleep Button                              id=9    [slave  keyboard (3)]
   ↳ Dell Dell Universal Receiver              id=10   [slave  keyboard (3)]
   ↳ Laptop_Integrated_Webcam_HD: In           id=12   [slave  keyboard (3)]
   ↳ Dell WMI hotkeys                          id=13   [slave  keyboard (3)]
   ↳ AT Translated Set 2 keyboard              id=14   [slave  keyboard (3)]
   ↳ Dell Dell Universal Receiver              id=17   [slave  keyboard (3)]

xinput -list-props 16

 
Device 'AlpsPS/2 ALPS DualPoint TouchPad':
       Device Enabled (142):   1
       Coordinate Transformation Matrix (144): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
       Device Accel Profile (275):     0
       Device Accel Constant Deceleration (276):       1.000000
       Device Accel Adaptive Deceleration (277):       1.000000
       Device Accel Velocity Scaling (278):    5.000000
       Trackpad Disable Input (305):   0
       Trackpad Sensitivity (306):     0.500000
       Trackpad Touch Pressure (307):  5, 5
       Trackpad Button Settings (308): 1, 1
       Trackpad Button Emulation Settings (309):       0, 1, 100
       Trackpad Button Emulation Values (310): 3, 2, 0
       Trackpad Tap Settings (311):    50, 120, 400
       Trackpad Tap Button Emulation (312):    1, 3, 2, 0
       Trackpad Thumb Detection (313): 0, 0
       Trackpad Thumb Size (314):      25, 70
       Trackpad Palm Detection (315):  0, 0
       Trackpad Palm Size (316):       40
       Trackpad Gesture Settings (317):        10, 100
       Trackpad Scroll Distance (318): 150
       Trackpad Scroll Buttons (319):  4, 5, 6, 7
       Trackpad Swipe Distance (320):  700
       Trackpad Swipe Buttons (321):   8, 9, 10, 11
       Trackpad Swipe4 Distance (322): 700
       Trackpad Swipe4 Buttons (323):  0, 0, 0, 0
       Trackpad Scale Distance (324):  150
       Trackpad Scale Buttons (325):   14, 15
       Trackpad Rotate Distance (326): 150
       Trackpad Drag Settings (327):   1, 350, 40, 200
       Trackpad Axis Inversion (328):  0, 0


xinput -set-prop 16 306 0.5

 

Processing mp3 by Python3 in Linux

 

 

$ sudo apt install llvm-8
 

$ locate llvm-config

$ LLVM_CONFIG=/usr/bin/llvm-config-8 pip3 install librosa --user
 

 

packages: llvmlite, numba, soundfile, resampy, audioread, librosa

 

CNN Architectures

 

[1] Keras CNN networks with size and time https://keras.io/api/applications/

Cryptocurrencies Resources

Where to Check

[1] Cryptocurrencies info (BR)  https://investidor10.com.br/criptomoedas/chiliz/

[2] Cryptocurrencies info https://coinmarketcap.com/

[3] https://panoramacrypto.com.br/

[4] Bitcoin https://www.lookintobitcoin.com

[5] Prediction chart https://www.lookintobitcoin.com/charts/stock-to-flow-model/

Where to buy

[1] Choose where to buy by country https://www.buybitcoinworldwide.com/

[2] Exchange in Brazil www.mercadobitcoin.com.br  

Where to Save

[1] Wallet MetaMask (Expensive to transfer in Wallet)

 

Perú

[1] https://fluyez.com/

[2] https://www.buda.com/

Whales

[1] https://www.whalestats.com/

Software

[1] ATANI Windows/MacOS/Linux https://atani.com/download

   
$ sudo apt update
$ sudo apt install snapd
$ sudo snap install core

$sudo snap install atani

 

 

 

 

 

 

 

OpenGL in Cuda Study

Starting

[1] https://www.geeksforgeeks.org/getting-started-with-opengl/

 

1) http://www.opengl-tutorial.org/beginners-tutorials/tutorial-2-the-first-triangle/

2) https://math.hws.edu/graphicsbook/c3/s4.html

 

 

C++ Linux vs Windows using STL

 

[1] Parallel STL https://www.modernescpp.com/index.php/performance-of-the-parallel-stl-algorithmn

Spanish books

 [1] Calculo http://blog.espol.edu.ec/srpinarg/files/2014/05/Calculo-de-Purcell-9na-Edici%C3%B3n.pdf

English movie subtitles

 

Game of Thrones Blue Ray sub titles

https://australiapopulation.com/game-of-thrones-season-3-subtitles/

[2] Shifter https://subshifter.bitsnbites.eu/

Images to PDF file (case study)

0. Previous requeriments

$sudo apt install img2pdf
$sudo apt install ocrmypdf

1. Download images by script

for n in `seq 1 23`
do
  sn=`printf "%02d" $n`
  echo $sn
  wget https://larepublica.cronosmedia.glr.pe/printed/2021/07/01/lima/pages/$sn.jpeg
done
 

2. Convert images to pdf (after executed download script by sh)

$img2pdf *.jpeg --output rep1.pdf #or

$convert *.jpeg rep2.pdf

$ocrmypdf rep1.pdf rep1_ocr.pdf #reduce size

 

Notes for convert command(change from none to read|write):

sudo vim /etc/ImageMagick-6/policy.xml

<policy domain="coder" rights="none" pattern="PDF" />

<policy domain="coder" rights="read|write" pattern="PDF" />

Bonus

[1] El Pueblo news url https://www.diarioelpueblo.com.pe/wp-content/uploads/2021/07/01-07-2021.pdf

Challenges

 

https://www.edx.org/course/high-dimensional-data-analysis

Python Settings to use in environments

Solving multiple python instalation:

sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.5 1

sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.6 2

sudo update-alternatives --config python3

Solving:

Error: Command '['/home/DRIVE/Temp/aa/bin/python3.9', '-Im', 'ensurepip', '--upg
rade', '--default-pip']' returned non-zero exit status 1.
 

apt-get install python3.6-dev python3.6-venv

python3.6 -m venv myVenv 

Upgrade pip

pip3 install --upgrade pip

 

Narcotrafico - Perú

 

[1] El Comercio Informal de la Coca para uso Tradicional https://pdf.usaid.gov/pdf_docs/Pnadd345.pdf

 

Political topics

 

[1] Socialismo científico PT

https://www.concursosnobrasil.com.br/escola/sociologia/socialismo-cientifico.html

[2] 12 apostoles https://ojo-publico.com/259/el-poder-economico-en-el-peru-esta-representado-por-12-empresas

[3] NSE Perú y Departamentos http://apeim.com.pe/informes-nse-anteriores/

[4] NSE por departamentos CPI http://cpi.pe/images/upload/paginaweb/archivo/26/mr_poblacional_peru_201905.pdf

 

[5] https://elcomercio.pe/elecciones-2021/encuesta-ipsos-en-cuarto-poder-pedro-castillo-lidera-las-preferencias-con-43-y-keiko-alcanza-34-noticia/?ref=ecr

[6] Miranda Vera https://rpp.pe/politica/historia/video-este-es-el-mensaje-de-los-comandos-chavin-de-huantar-a-los-jovenes-peruanos-noticia-1045815?ref=rpp

 

 [7] Constitución política del Perú

[7.1] http://www.pcm.gob.pe/wp-content/uploads/2013/09/Constitucion-Pol%C3%ADtica-del-Peru-1993.pdf

[7.2] https://www.gob.pe/institucion/presidencia/informes-publicaciones/196158-constitucion-politica-del-peru

Houdini Courses

 

[1] https://www.cgcircuit.com/tutorial/houdini-basics-episode-i

 

Developer postions Brazil

 

[1] https://jobs.kenoby.com/eldorado

 

Houdini18 topics

 

Import libraries

 

/opt/hfs18.0/python/lib/python2.7

 

Asset libraries

Digital assets are stored in digital asset library files, with a .hda extension. (Older versions of Houdini used a .otl extension.) Houdini loads any .hda (or .otl) files it finds in HOUDINIPATH/otls.

Steps:

 1) Create Subnet

 2) Define Parameters and Save .otl

References:

[1] creating an otl on Houdini18 https://www.sidefx.com/tutorials/getting-cozy-with-houdini-engine-lesson-3-creating-our-first-otl/ 

[2] Create digital assets https://www.sidefx.com/docs/houdini/assets/create.html

[2] https://www.youtube.com/watch?v=Q6U_q5PASiU

Rendering by Python 3

 

trimesh
trimesh-3.9.10-py3-none-any.whl

pyrender
pyrender-0.1.45-py3-none-any.whl

Dependences:
  PyOpenGL==3.1.0
  PyOpenGL-3.1.0.tar.gz

  pyglet>=1.4.10
  pyglet-1.5.15-py3-none-any.whl

  freetype-py
  freetype_py-2.1.0.post1-py2.py3-none-manylinux1_x86_64.whl
 

 

Amazonas deforestation

 

Main page

[1] http://terrabrasilis.dpi.inpe.br/en/home-page/

Dataset

[2] http://www.dpi.inpe.br/prodesdigital/dadosn/

[3] 2005-2009 http://www.dpi.inpe.br/prodesdigital/dadosn/mosaicos/

[4] Image 9GB http://www.dpi.inpe.br/prodesdigital/dadosn/mosaicos/2019/

Python set right version to execute 3.6 3.7 3.8

 

 

https://tech.serhatteker.com/post/2019-12/upgrade-python38-on-ubuntu/

https://stackoverflow.com/questions/63823964/importerror-cannot-import-name-sysconfig-from-distutils-usr-lib-python3-8

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py

python3 get-pip.py --force-reinstall

ModuleNotFoundError: No module named 'apt_pkg' error

sudo apt-get remove python3-apt
sudo apt-get install python3-apt

 

 

ImportError: No module named OpenGL.GL

apt-get install python3-opengl

or  

pip3 install pyopengl --user

As well as:

sudo apt-get install python python-numpy python-opengl python-qt4 python-qt4-gl

 

 

 

 

Cuda on Linux18 (y2021)

After installation don't forget it(.bashrc):

#Cuda 8.0 Settings
export CUDA_HOME=/usr/local/cuda-8.0
export LD_LIBRARY_PATH=${CUDA_HOME}/lib64  
PATH=${CUDA_HOME}/bin:${PATH}
#export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:

 

Drivers

[1] Legacy https://www.nvidia.com/en-us/drivers/unix/

To Review (Cuda and Driver)

CUDA 11.2             >= 450.80.02
CUDA 11.1 (11.1.0)     >= 450.80.02
CUDA 11.0 (11.0.3)     >= 450.36.06
CUDA 10.2 (10.2.89)     >= 440.33
CUDA 10.1 (10.1.105)     >= 418.39
CUDA 10.0 (10.0.130)     >= 410.48
CUDA 9.2 (9.2.88)     >= 396.26
CUDA 9.1 (9.1.85)     >= 390.46
CUDA 9.0 (9.0.76)     >= 384.81
CUDA 8.0 (8.0.61 GA2)     >= 375.26
CUDA 8.0 (8.0.44)     >= 367.48
CUDA 7.5 (7.5.16)     >= 352.31
CUDA 7.0 (7.0.28)     >= 346.46

[1] Compatibility  https://docs.nvidia.com/deploy/cuda-compatibility/index.html 

To Review (Cuda and GCC)

CUDA version     Max GCC version
11.1             10.0
11                9
10.1, 10.2    8
9.2, 10.0      7
9.0, 9.1        6
8                  5.3
7                  4.9
5.5, 6           4.8
4.2, 5           4.6
4.1               4.5
4.0               4.4

Cuda Toolkit from 6.5 to 10 and more

[1] https://developer.nvidia.com/cuda-toolkit-archive

Common problems

[1] Can't locate InstallUtils.pm in @INC

$sh ./cuda(your version).run --tar mxvf #for unpack

$cp InstallUtils.pm /usr/lib/x86_64-linux-gnu/perl-base #check path in error message

[2] Messages during Cuda installation

$sudo ./cuda_6.5.14_linux_64.run --override

$sudo ./cuda_xxx.run --override  #to ignore last compiler or related

#During Cuda 6.5

Install NVIDIA Accelerated Graphics Driver for Linux-x86_64 340.29?

#During Cuda 8

Install NVIDIA Accelerated Graphics Driver for Linux-x86_64 375.26?

#During Cuda 9

Install NVIDIA Accelerated Graphics Driver for Linux-x86_64 384.81?

[3] Adicional  notes

https://forums.dual.sphysics.org/discussion/1324/get-the-gpu-running

[4] How to disable nouveau driver to install NVIDIA drivers

$vi /etc/modprobe.d/blacklist-nvidia-nouveau.conf
blacklist nouveau
options nouveau modeset=0

$sudo update-initramfs -u 

$sudo reboot 

 

 

Ubuntu users tools

 

To hidden (no initial list at login)

sudo vi /var/lib/AccountsService/users/cloud

SystemAccount=true #change this from false to true

References:

[1] add user https://linoxide.com/usr-mgmt/give-normal-user-root-privileges/

[2] hidden user https://swatij.me/hacks/ubuntu/hide-user-from-login-screen-in-ubuntu-14-04.html

Ubuntu enable Sony Xperia USB transfer

 

sudo apt-get install libusb-dev

sudo apt-get install gmtp

References:

[1] Manual installation of libmtp http://www.humans-enabled.com/2011/12/how-to-fix-samsung-galaxy-nexus-mtp.html

[2] https://gmtp.sourceforge.io/

[3] Original post https://android.stackexchange.com/questions/36376/cant-explore-files-on-my-sony-xperia-u-using-my-ubuntu-12-10-laptop

VideoChat Background Filter

 

[1] https://github.com/scumjr/cameo

 

Deep nostalgia

 

https://time-travel-rephotography.github.io/

https://www.myheritage.com.br/deep-nostalgia

3D Models (free)

 

[1] Gallery https://free3d.com/3d-models/toys?page=2

[2] Cat with Wings https://www.cgtrader.com/items/716159/download-page

Banks Perú - Credits

 

 75%
Tasa Efectiva Anual (TEA)

https://www.crediscotia.com.pe/Negocios/simuladores/simuladores/credito-libre-disponibilidad

 

 http://aplicacionespichincha.com.pe/simuladorWEB/cotizador.aspx

https://web.compartamos.com.pe/crear/simulador.php

https://www.cajaarequipa.pe/simulador/

Online Book Stores

 

[1] https://www.bookdepository.com/ (Problems by tracking/UK?)

[2] https://www.thriftbooks.com (Unavailable by covid)

[3] https://www3.livrariacultura.com.br

[4] http://betterworldbooks.com/ (block brazil country)

[5] https://www.awesomebooks.com (UK?)

Poligonization tools

 

 

https://snorpey.github.io/triangulation/

https://polygonize.net/

 

 

Houdini 18: Fundamentals

 

PDG & examples (~2020)

[1] https://www.sidefx.com/learn/pipeline-pdg/

Materials

[1] https://www.youtube.com/watch?v=TzDAxvPFh1E

Hair Shading

[1] https://www.youtube.com/watch?v=aO1r5yv3QT8

Objects

[1] Rock https://www.youtube.com/watch?v=gINvU11LHB0

Flip

[0] Tips to improve https://blendermarket.com/posts/flip-fluids-10-tips-to-improve-your-blender-workflow

[1] https://vimeo.com/182074285

[2] https://vimeo.com/189254805

[3] Splash https://vimeo.com/209763376

[4] Collider https://vimeo.com/252645795

 

Sources

[1] pool https://www.sidefx.com/forum/topic/27689/?page=1#post-130379

Security info Linux Servers

 Trace users on Linux

$lslogins -u

$w 

$who -u

References:

[1] https://www.tecmint.com/find-user-account-info-and-login-details-in-linux/

Houdini 18 : Parse .bgeo files

 

$hython /opt/hfs18.0.460/houdini/public/hgeo/hgeo.py file.bgeo

       7199 Points
       7199 Vertices
          1 Primitives
----- Attributes -----
Point Attributes
   numeric P[3]
   numeric v[3]
Primitive Attributes
   string name[1]
Global Attributes
   numeric rest_ratio[1]
   numeric rest2_ratio[1]
   numeric timescale[1]
1 Primitives
         1 PolySoup
Primitive 0 is a PolySoup and has 0 vertices.

 

$ hython /opt/hfs18.0.460/houdini/public/binary_json/json_binary_verify.py /opt
/hfs18.0.460/houdini/geo/defgeo.bgeo  
JSON Valid: /opt/hfs18.0.460/houdini/geo/defgeo.bgeo (0.002985 s)

 

Professor Position Requeriments

How to write "memorial" para concurso

[1] Examples https://marcoarmello.wordpress.com/2018/07/19/memorial/