planetceres

Restart/reset USB kernel module in Ubuntu 18.04 without rebooting

Restart USB ports after a power overdraw (error -110). Unplug all devices prior to running script.

References:

• https://davidjb.com/blog/2012/06/restartreset-usb-in-ubuntu-12-04-without-rebooting/
• https://ubuntuforums.org/showthread.php?t=1460790&p=9162799#post9162799

planetceres

Installation Notes for pipenv on Ubuntu 18.04

1. Add ~/.local/bin to PATH

pypa/pipenv#2122 (comment)

echo 'export PATH="${HOME}/.local/bin:$PATH"' >> ~/.bashrc

planetceres

def rgb_from_prob(value, minimum=0, maximum=1):
    '''
    Based on: https://stackoverflow.com/a/20792531/3450793
    ''' 
    minimum, maximum = float(minimum), float(maximum)
    ratio = 2 * (value-minimum) / (maximum - minimum)
    g = int(max(0, 255*(1 - ratio)))
    r = int(max(0, 255*(ratio - 1)))
    b = 255 - g - r
	

planetceres

import pyrealsense2 as rs
import numpy as np

'''
Intrincs and Exrinsic information available from command line with RealSense SDK
$ rs-enumerate-devices -c
'''
config = rs.config()
config.enable_stream(rs.stream.depth, 1280, 720, rs.format.z16, 30)
config.enable_stream(rs.stream.color, 1920, 1080, rs.format.bgr8, 30)

planetceres

#!/usr/bin/env bash


# PCL
sudo apt install libpcl-dev


# VTK
# Ref: https://discourse.vtk.org/t/installing-vtk-in-ubuntu-18-04/2147/4
sudo apt install cmake \

planetceres

Simple depth image viewer

pip3 install open3d

To run:

planetceres

References:

https://discuss.pytorch.org/t/where-deprecated-torch-uint8-warning-comes-from-possibly-from-numpy-conversion/55480

https://stackoverflow.com/a/22376126/3450793

You can get what you want by assigning to warnings.showwarning. The warnings module documentation itself recommends that you do that, so it's not that you're being tempted by the dark side of the source. :)

You may replace this function with an alternative implementation by assigning to warnings.showwarning.

planetceres

Install Deepkit

curl https://gist.githubusercontent.com/planetceres/454a110f2440304563179fec6488ecaa/raw/be076725bc1b61c2e422d781379fedaba6e4868a/install_deepkit.sh > install_deepkit.sh
sudo chmod +x ./install_deepkit.sh
bash install_deepkit.sh

planetceres

# Retry a command up to a specific numer of times until it exits successfully,
# with exponential back off.
#
#  $ retry 5 echo Hello
#  Hello
#
#  $ retry 5 false
#  Retry 1/5 exited 1, retrying in 1 seconds...
#  Retry 2/5 exited 1, retrying in 2 seconds...
#  Retry 3/5 exited 1, retrying in 4 seconds...

planetceres

Capture Volume controls from python

pip install pynput

Key object:

Volume Down