protrolium

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

You can get the list of installed codecs with:

hvanhonacker

Upgrade from PostgreSQL 9.3 to 9.4 on Ubuntu 14.10

Install postgresql-9.4

$ sudo apt-get install postgresql-9.4

Then psql version should be 9.4.x

$ psql --version

nlap

graph-tool on Ubuntu 14.04

Recommended: Graph-tool one-line install commands:

anaconda conda create --name gt -c conda-forge graph-tool

homebrew brew install graph-tool

v-pravin

INSTALLATION OF GRAPH-TOOL FROM SOURCE

System

• OS : Ubuntu 14.04.1 LTS Desktop 64-bit (http://www.ubuntu.com/download/alternative-downloads#external)
• Python Distribution : Anaconda Python (https://store.continuum.io/cshop/anaconda/)
• Hardware : Lenovo Thinkpad L440

Requirements as given under - http://graph-tool.skewed.de/download

arthur-e

Post-Installation Fixes and Setup

# Install compilers and linking tools; other tools
sudo apt-get install g++ swig curl build-essential python-all-dev

# Install package manager
sudo apt-get install synaptic

# Install Unity customization tool

sudo apt-get install unity-tweak-tool

clhenrick

PostgreSQL & PostGIS Cheatsheet

This is a collection of information on PostgreSQL and PostGIS for what I tend to use most often.

TOC

• Installing Postgres & PostGIS
• Using Postgres on the command line: PSQL
• Importing Data into Postgres
• Exporting Data from Postgres
• Joining Tables

callumacrae

List of JavaScript Build Tools

Yet another framework syndrome

Name	Date	URL	Stars
Jake	April 2010	https://github.com/mde/jake	1000
Brunch	January 2011	http://brunch.io/	3882
smoosh	March 2011	https://github.com/fat/smoosh	329
anvil.js	February 2012	https://github.com/anviljs/anvil.js	161

rclark

There are a bunch of reasons why this is convoluted, mostly in building the URL to make the request:

1. You have to rely on an AJAX request, this example uses jQuery
2. To make a GetFeatureInfo request, you must provide a BBOX for a image, and the pixel coordinates for the part of the image that you want info from. A couple of squirrely lines of Leaflet code can give you that.
3. Output formats. The info_format parameter in the request. We don't know a priori which will be supported by a WMS that we might make a request to. See Geoserver's docs for what formats are available from Geoserver. That won't be the same from WMS to WMS, however.
4. WMS services return XML docs when there's a mistake in the request or in processing. This sends an HTTP 200, which jQuery doesn't think is an error.

nitaku

A Gosper space-filling curve drawn with an implementation of an L-system renderer.

The drawing of the line is animated using Mike Bostock's stroke dash interpolation.

nitaku

A Hilbert space-filling curve drawn with an implementation of an L-system renderer.

The drawing of the line is animated using Mike Bostock's stroke dash interpolation.