pgorczak

pgorczak

""" Simple solution for streaming audio from Gqrx to Firefox.

Requires the opusenc command line tool.

This program uses the fact that Opus files can be concatenated to form a valid
stream and that Firefox can play these streams natively. The drawback is the
overhead created by repeatedly inserting containers and metadata into the
stream.

- Check https://fastapi.tiangolo.com/tutorial/ to see how to run the server.

pgorczak

from pydrake.symbolic import Variable
from pydrake.systems.analysis import Simulator
from pydrake.systems.controllers import PidController
from pydrake.systems.framework import BasicVector, DiagramBuilder, LeafSystem
from pydrake.systems.primitives import SymbolicVectorSystem

k = 1
s = 1
m = 1

pgorczak

from pydrake.symbolic import Variable
from pydrake.systems.analysis import Simulator
from pydrake.systems.controllers import PidController
from pydrake.systems.framework import DiagramBuilder
from pydrake.systems.primitives import SymbolicVectorSystem

x, xd = Variable('x'), Variable('xdot')
f = Variable('f')
state = [x, xd]
k = 1

pgorczak

Video export for openFrameworks

This is a small helper that uses ffmpeg to record h264 video from openFrameworks.

It starts ffmpeg in a subprocess, so ffmpeg should be available on your system. Tested on Linux but probably works on macOS too.

How to use

pgorczak

import threading

import rospy


def get_single_msg(topic, type_, timeout=None):
    """ Utility function that gets a single message from a ROS topic.
    
    Args:
        topic: ROS topic (string).

pgorczak

from collections import OrderedDict
import os
import json

import genmsg
import rosmsg
import rospkg


def load_specs(context, search_path, msg):

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#!/bin/bash

# Args: source destination
# Needs rsync and inotify-tools
# Hidden files and folders are excluded via regex (inotifywait) and patterns (rsync)

while true; do
  rsync -avz --exclude ".*" --exclude ".*/" $1 $2
  inotifywait -r -e modify,attrib,close_write,move,create,delete --exclude="\/\." $1
done

pgorczak

import numpy as np

import geometry_msgs.msg as geo_msgs
import rospy

import mesh_msgs.msg as mesh_msgs


def publish_mesh(pub):
    mesh = mesh_msgs.TriangleMeshStamped()

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import numpy as np
from matplotlib.cm import get_cmap

import rospy
import sensor_msgs.msg as sensor_msgs
import std_msgs.msg as std_msgs


def point_cloud(points, parent_frame):
    """ Creates a point cloud message.