noerw / GeoTIFF_leafletwidget_generator.r

Last active May 17, 2016 07:42

R script to visualize GeoTIFFs in a Leaflet Map. Generates an HTML file containing this map

	# dependencies on fedora23:
	# gdal-devel geos-devel proj-devel proj-nad proj-epsg

	library(htmlwidgets)
	library(raster)
	library(leaflet)

	# PATHS TO INPUT / OUTPUT FILES
	projectPath = "/home/kreis/git/geotiff/"
	#imgPath = paste(projectPath,"data/cea.tif", sep = "")

noerw / create_RGBInt_colorRamp.r

Last active December 3, 2015 10:09

create a color ramp, which assigns every RGBInt value it's true color

	# i know, this is a really stupid hack, but "necessary" for
	# this issue: https://github.com/rstudio/leaflet/issues/212

	#' @describe creates a list of RGB values in ascending order,
	#' with the blue channel beeing the least significant,
	#' and the red channel beeing the most significant.
	#' @param bitdepth The bitdepth of the values to create.
	#' defaults to 8bit, and creates ~16kk values
	#' @return a matrix containing the RGB values as integers.
	rgbIntMatrix <- function(bitdepth = 8) {

noerw / owncloud_backup.sh

Created September 9, 2016 19:42

automated owncloud upgrade (mysql)

	#!/bin/bash

	# create a backup of owncloud & upgrade to the latest version
	# requires root. depends on mysqldump, wget, tar
	# should run on any linux machine
	#
	# - disables all apps
	# - performs a mysqldump
	# - backups the current installation
	# - gets the new archive & installs it

noerw / mobile-osem_dbmigration.go

Last active January 24, 2017 16:05

migration script in go/mgo for the openSenseMap. adding support for mobile boxes

	/*
	TODO:
	- mongo performance optimieren
	- in db migration framework einbetten: https://github.com/mattes/migrate
	- filter measurements to update by date

	IDEAS zur optimierung
	- multithreaded. 4 statt 1?
	-> 3 packt mein laptop, 50% schneller
	- indexes entfernen? https://docs.mongodb.com/v3.2/core/write-performance/ -> besserer write

noerw / osemcurl.sh

Created May 23, 2017 08:36

curl commands for the opensensemap API. requires jq

	#!/bin/bash

	OSEM_API=https://api.osem.vo1d.space
	#OSEM_API=http://localhost:8000

	# register user
	OSEM_TOKEN=$(curl -H "content-type: application/json" $OSEM_API/users/register -d '{"name":"firstname","email":"[email protected]","password":"12345678"}' \| jq .token \| tr -d '"')
	# user login
	OSEM_TOKEN=$(curl -H "content-type: application/json" $OSEM_API/users/sign-in -d '{"email":"[email protected]","password":"12345678"}' \| jq .token \| tr -d '"')

noerw / ttn-decoder-lora-serialization-osem.js

Last active July 18, 2017 09:50

TTN payload function for lora-serialization -> openSenseMap.org JSON profile

	function Decoder (bytes, port) {
	'use strict';

	let boxes = [];

	// maps LoRa ports to openSenseMap configurations
	// should contain
	// [
	// TEMPSENSOR_ID,
	// HUMISENSOR_ID

noerw / keybase.md

Created October 24, 2017 19:08

keybase.md

I hereby claim:

To claim this, I am signing this object:

noerw / dokuwiki_fetcher.sh

Created April 17, 2018 10:43

fetch all pages of a doku wiki install (given a filelisting)

	#!/bin/bash

	base=/var/www/intern/data/pages
	doku='https://DOKUWIKIHOST/doku.php?id='

	filelist=`find $base -type f -name '*.txt'`

	echo -e "gonna fetch `wc -w <<< $filelist` pages!11!!\n"

	for file in $filelist; do

noerw / READM.md

Created August 31, 2018 11:04

Kibana 6.4 read only access

warning: this list of endpoints was discovered empirically

in case you want to restrict Kibana access to read only, whitelist the following endpoints:

noerw / shader-to-wallpaper.sh

Created October 14, 2018 23:06

convert GLSL shader to gnome wallpaper slideshow

	#!/usr/bin/env bash

	shader=$1 # first argument is path to shader
	renderstart=0 # seconds
	renderend=20

	resolutionx=1920
	resolutiony=1080
	wallduration=20 # seconds, minimum 1

Norwin noerw

Kibana 6.4 read only access