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Hue Programmierung via REST – Teil 3

2018-03-09, 23:23
This entry is part 1 of 4 in the series Hue Programmierung

In diesem Teil schauen wir uns die möglichen Aufrufparameter für die URL etwas näher an.

Grundsätzlich gilt (entnommen https://www.developers.meethue.com/things-you-need-know (möglicherweise Registrierung nötig)):

  • Die API ist lokal, ohne VPN Zugang kommt man nicht ohne weiteres ran (Gedanken dazu in einem späteren Beitrag)
  • Ist die Lampe an, dann ist sie an. Man sollte nicht in jedem Befehl ein "on":true mitschicken, nur weil man es kann.
  • Lampen sollte man nicht öfter als 10 Mal pro Sekunde neue Befehle erhalten, Gruppen nur einmal pro Sekunde.
  • Zwischen den Wechseln von Farbe, Helligkeit etc. haben die Lampen standardmäßig eine Transition Time von 400 Millisekunden. Möchte man das nicht, muss "transitiontime":0 gesetzt werden.
  • Die Lampen unterstützen drei Farbmodelle
    • Hue, Saturation und Brightness
    • xy im CIE Farbraum
    • ct the Mired Farbtemperatur

    also kein RGB. Es gibt aber Umwandler in den diversen Sprachen.

  • Wenn eine Lampe widersprüchliche Befehle erhält, dann gilt: xy schlägt ct schlägt hsb.

Im nächsten Teil zeige ich, wie man mit ein paar Zeilen Python „Disco-Lichter“ erzeugt.

Uwe

Uwe Ziegenhagen likes LaTeX and Python, sometimes even combined. Do you like my content and would like to thank me for it? Consider making a small donation to my local fablab, the Dingfabrik Köln. Details on how to donate can be found here Spenden für die Dingfabrik.

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Category: Allgemein  |  Kommentare deaktiviert für Hue Programmierung via REST – Teil 3

Datei vom Sharepoint laden mittels Powershell

2018-01-14, 17:13

Hier ein Code-Schnipsel, zusammenkopiert aus Stackexchange-Antworten, mit dem man eine Datei vom Sharepoint laden kann. Wichtig war hier, dass die eventuell bereits lokal vorhandene Datei nicht mehr genutzt wird. Dazu wird sie gelöscht (man könnte noch prüfen, ob sie überhaupt vorhanden ist…). Der Sharepoint-Pfad wird innerhalb der Powershell als Laufwerk gemountet, das erlaubt dann die Nutzung einfacher Kopier-Befehle.

[String]$Ziel = "somelocalfile.txt"
 
Write-Host "Loesche die alte Datei"
Remove-Item -Path $Ziel
 
$FileExists = Test-Path $Ziel
If ($FileExists -eq $True) {
    Write-Host "Fehler: Datei noch vorhanden!"}
Else {
    Write-Host "OK: Alte Datei geloescht!"
}
 
Write-Host "Mounte Sharepoint als virtuelles Laufwerk..."
[String]$WebDAVShare = '\\some\unc\path\'
New-PSDrive -Name S -PSProvider FileSystem -Root $WebDAVShare
 
Write-Host "Kopiere ..."
Copy-Item "S:/someremotefile.xlsx" $Ziel
 
$FileExists = Test-Path $Ziel
 
If ($FileExists -eq $True) {
    Write-Host "OK: Neue Datei vorhanden!"}
Else {
    Write-Host "Fehler: Datei wurde nicht heruntergeladen!"
}
 
Write-Host "Press any key to continue ..."
$x = $host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")

Uwe

Uwe Ziegenhagen likes LaTeX and Python, sometimes even combined. Do you like my content and would like to thank me for it? Consider making a small donation to my local fablab, the Dingfabrik Köln. Details on how to donate can be found here Spenden für die Dingfabrik.

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Category: Allgemein, Powershell  |  Kommentare deaktiviert für Datei vom Sharepoint laden mittels Powershell

Das tikz-kalender Paket

2018-01-07, 21:49
This entry is part 1 of 3 in the series Kalender mit tikz-kalender

Ein kurzer Nachtrag zu meinem „Kalender mit TikZ“-Beispiel. Von Rolf Niepraschk gibt es das „tikz-kalender“ Paket (https://ctan.org/pkg/tikz-kalender), das die notwendige Funktionalität bereitstellt.

Schauen wir uns ein einfaches Beispiel an:

  • als Dokumentenklasse wird tikz-kalender genutzt
  • Als Optionen zum \setup-Befehl gibt man die verschiedenen Variablen in Key-Value Notation an
  • der eigentliche Satz des Kalenders geschieht mittels \makeKalender
  • es wird daraus ein zweiseitiges Dokument mit jeweils einem Halbjahr erzeugt
\documentclass{tikz-kalender}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
 
\setup{year=2018,title={Termine}}
 
\begin{document}
 
\makeKalender
 
\end{document}

Uwe

Uwe Ziegenhagen likes LaTeX and Python, sometimes even combined. Do you like my content and would like to thank me for it? Consider making a small donation to my local fablab, the Dingfabrik Köln. Details on how to donate can be found here Spenden für die Dingfabrik.

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Category: Allgemein  |  Kommentare deaktiviert für Das tikz-kalender Paket

Jahreskalender mit LaTeX & TikZ

2017-12-31, 19:33

Hier ein zusammengefrickeltes Beispiel für einen TikZ-basierten Jahreskalender. „Zusammengefrickelt“ deshalb, weil es bestimmt über die TikZ- und pgf-Kalenderfunktionen viel einfacher und eleganter geht. Letzlich tut es aber 😉

Kalender_2018 (auch wenn das PDF im Namen „2017“ trägt)

\documentclass[fontsize=6pt]{scrartcl}
\usepackage[a4paper,landscape,left=0.5cm,right=0.5cm,top=0.5cm,bottom=0.5cm]{geometry}
 
\usepackage[]{ifdraft}
\usepackage[]{attachfile}
\usepackage[]{eso-pic}
 
\usepackage[english]{babel}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
 
\renewcommand{\familydefault}{\sfdefault}
\RequirePackage[scaled=0.9]{helvet}
\usepackage{tikz}
\usepackage[right]{showlabels}
\usetikzlibrary{positioning}
\pagestyle{empty}
 
\usepackage{xcolor}
 
\usepackage{hyperref}
\usepackage{url}
 
\definecolor{weekendday}{RGB}{220,220,220}
\newcommand{\file}[1]{\textattachfile{#1}{\textcolor{blue}{\LaTeX\ Sourcecode}}}
 
\begin{document}  
 
\AddToShipoutPictureFG*{
  \put(35,10){\footnotesize Uwe Ziegenhagen, ziegenhagen@gmail.com, \file{\jobname.tex}	
}
}
 
\begin{center}
\begin{tikzpicture}
[
    x=23mm,y=6mm,
    mybox/.style={rectangle,rounded corners,minimum width=23mm, minimum height=6mm},
	month/.style={mybox,align=center,draw=black,fill=yellow,thick,font=\bfseries\Large},
    date/.style={mybox,draw=gray,fill=yellow,align=left,thick,minimum width=5mm,font=\bfseries\Large},
    day/.style={mybox,draw=black,align=left},
    weekendday/.style={mybox,draw=black,align=left,fill=weekendday}
]
\node at (0,0) [month] {Januar};
\node at (1,0) [month] {Februar};
\node at (2,0) [month] {März};
\node at (3,0) [month] {April};
\node at (4,0) [month] {Mai};
\node at (5,0) [month] {Juni};
\node at (6,0) [month] {Juli};
\node at (7,0) [month] {August};
\node at (8,0) [month] {September};
\node at (9,0) [month] {Oktober};
\node at (10,0) [month] {November};
\node at (11,0) [month] {Dezember};
 
\node at (-0.6,-1) [date] {01};
\node at (-0.6,-2) [date] {02};
\node at (-0.6,-3) [date] {03};
\node at (-0.6,-4) [date] {04};
\node at (-0.6,-5) [date] {05};
\node at (-0.6,-6) [date] {06};
\node at (-0.6,-7) [date] {07};
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\node at (-0.6,-18) [date] {18};
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\node at (-0.6,-20) [date] {20};
\node at (-0.6,-21) [date] {21};
\node at (-0.6,-22) [date] {22};
\node at (-0.6,-23) [date] {23};
\node at (-0.6,-24) [date] {24};
\node at (-0.6,-25) [date] {25};
\node at (-0.6,-26) [date] {26};
\node at (-0.6,-27) [date] {27};
\node at (-0.6,-28) [date] {28};
\node at (-0.6,-29) [date] {29};
\node at (-0.6,-30) [date] {30};
\node at (-0.6,-31) [date] {31};
 
\node at (0,-1) [day] {};
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\node at (0,-3) [day] {};
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\node at (0,-5) [day] {};
\node at (0,-6) [weekendday] {};
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\node at (0,-8) [day] {};
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\node at (0,-12) [day] {};
\node at (0,-13) [weekendday] {};
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\node at (0,-15) [day] {};
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\node at (0,-20) [weekendday] {};
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\node at (0,-24) [day] {};
\node at (0,-25) [day] {};
\node at (0,-26) [day] {};
\node at (0,-27) [weekendday] {};
\node at (0,-28) [weekendday] {};
\node at (0,-29) [day] {};
\node at (0,-30) [day] {};
\node at (0,-31) [day] {};
 
 
\node at (1,-1) [day] {};
\node at (1,-2) [day] {};
\node at (1,-3) [weekendday] {};
\node at (1,-4) [weekendday] {};
\node at (1,-5) [day] {};
\node at (1,-6) [day] {};
\node at (1,-7) [day] {};
\node at (1,-8) [day] {};
\node at (1,-9) [day] {};
\node at (1,-10) [weekendday] {};
\node at (1,-11) [weekendday] {};
\node at (1,-12) [day] {};
\node at (1,-13) [day] {};
\node at (1,-14) [day] {};
\node at (1,-15) [day] {};
\node at (1,-16) [day] {};
\node at (1,-17) [weekendday] {};
\node at (1,-18) [weekendday] {};
\node at (1,-19) [day] {};
\node at (1,-20) [day] {};
\node at (1,-21) [day] {};
\node at (1,-22) [day] {};
\node at (1,-23) [day] {};
\node at (1,-24) [weekendday] {};
\node at (1,-25) [weekendday] {};
\node at (1,-26) [day] {};
\node at (1,-27) [day] {};
\node at (1,-28) [day] {};
 
 
 
\node at (2,-1) [day] {};
\node at (2,-2) [day] {};
\node at (2,-3) [weekendday] {};
\node at (2,-4) [weekendday] {};
\node at (2,-5) [day] {};
\node at (2,-6) [day] {};
\node at (2,-7) [day] {};
\node at (2,-8) [day] {};
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\node at (2,-10) [weekendday] {};
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\node at (2,-12) [day] {};
\node at (2,-13) [day] {};
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\node at (2,-17) [weekendday] {};
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\node at (2,-19) [day] {};
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\node at (2,-24) [weekendday] {};
\node at (2,-25) [weekendday] {};
\node at (2,-26) [day] {};
\node at (2,-27) [day] {};
\node at (2,-28) [day] {};
\node at (2,-29) [day] {};
\node at (2,-30) [day] {};
\node at (2,-31) [weekendday] {};
 
\node at (3,-1) [weekendday] {};
\node at (3,-2) [day] {};
\node at (3,-3) [day] {};
\node at (3,-4) [day] {};
\node at (3,-5) [day] {};
\node at (3,-6) [day] {};
\node at (3,-7) [weekendday] {};
\node at (3,-8) [weekendday] {};
\node at (3,-9) [day] {};
\node at (3,-10) [day] {};
\node at (3,-11) [day] {};
\node at (3,-12) [day] {};
\node at (3,-13) [day] {};
\node at (3,-14) [weekendday] {};
\node at (3,-15) [weekendday] {};
\node at (3,-16) [day] {};
\node at (3,-17) [day] {};
\node at (3,-18) [day] {};
\node at (3,-19) [day] {};
\node at (3,-20) [day] {};
\node at (3,-21) [weekendday] {};
\node at (3,-22) [weekendday] {};
\node at (3,-23) [day] {};
\node at (3,-24) [day] {};
\node at (3,-25) [day] {};
\node at (3,-26) [day] {};
\node at (3,-27) [day] {};
\node at (3,-28) [weekendday] {};
\node at (3,-29) [weekendday] {};
\node at (3,-30) [day] {};
 
\node at (4,-1) [day] {};
\node at (4,-2) [day] {};
\node at (4,-3) [day] {};
\node at (4,-4) [day] {};
\node at (4,-5) [weekendday] {};
\node at (4,-6) [weekendday] {};
\node at (4,-7) [day] {};
\node at (4,-8) [day] {};
\node at (4,-9) [day] {};
\node at (4,-10) [day] {};
\node at (4,-11) [day] {};
\node at (4,-12) [weekendday] {};
\node at (4,-13) [weekendday] {};
\node at (4,-14) [day] {};
\node at (4,-15) [day] {};
\node at (4,-16) [day] {};
\node at (4,-17) [day] {};
\node at (4,-18) [day] {};
\node at (4,-19) [weekendday] {};
\node at (4,-20) [weekendday] {};
\node at (4,-21) [day] {};
\node at (4,-22) [day] {};
\node at (4,-23) [day] {};
\node at (4,-24) [day] {};
\node at (4,-25) [day] {};
\node at (4,-26) [weekendday] {};
\node at (4,-27) [weekendday] {};
\node at (4,-28) [day] {};
\node at (4,-29) [day] {};
\node at (4,-30) [day] {};
\node at (4,-31) [day] {};
 
\node at (5,-1) [day] {};
\node at (5,-2) [weekendday] {};
\node at (5,-3) [weekendday] {};
\node at (5,-4) [day] {};
\node at (5,-5) [day] {};
\node at (5,-6) [day] {};
\node at (5,-7) [day] {};
\node at (5,-8) [day] {};
\node at (5,-9) [weekendday] {};
\node at (5,-10) [weekendday] {};
\node at (5,-11) [day] {};
\node at (5,-12) [day] {};
\node at (5,-13) [day] {};
\node at (5,-14) [day] {};
\node at (5,-15) [day] {};
\node at (5,-16) [weekendday] {};
\node at (5,-17) [weekendday] {};
\node at (5,-18) [day] {};
\node at (5,-19) [day] {};
\node at (5,-20) [day] {};
\node at (5,-21) [day] {};
\node at (5,-22) [day] {};
\node at (5,-23) [weekendday] {};
\node at (5,-24) [weekendday] {};
\node at (5,-25) [day] {};
\node at (5,-26) [day] {};
\node at (5,-27) [day] {};
\node at (5,-28) [day] {};
\node at (5,-29) [day] {};
\node at (5,-30) [weekendday] {};
 
 
\node at (6,-1) [weekendday] {};
\node at (6,-2) [day] {};
\node at (6,-3) [day] {};
\node at (6,-4) [day] {};
\node at (6,-5) [day] {};
\node at (6,-6) [day] {};
\node at (6,-7) [weekendday] {};
\node at (6,-8) [weekendday] {};
\node at (6,-9) [day] {};
\node at (6,-10) [day] {};
\node at (6,-11) [day] {};
\node at (6,-12) [day] {};
\node at (6,-13) [day] {};
\node at (6,-14) [weekendday] {};
\node at (6,-15) [weekendday] {};
\node at (6,-16) [day] {};
\node at (6,-17) [day] {};
\node at (6,-18) [day] {};
\node at (6,-19) [day] {};
\node at (6,-20) [day] {};
\node at (6,-21) [weekendday] {};
\node at (6,-22) [weekendday] {};
\node at (6,-23) [day] {};
\node at (6,-24) [day] {};
\node at (6,-25) [day] {};
\node at (6,-26) [day] {};
\node at (6,-27) [day] {};
\node at (6,-28) [weekendday] {};
\node at (6,-29) [weekendday] {};
\node at (6,-30) [day] {};
\node at (6,-31) [day] {};
 
\node at (7,-1) [day] {};
\node at (7,-2) [day] {};
\node at (7,-3) [day] {};
\node at (7,-4) [weekendday] {};
\node at (7,-5) [weekendday] {};
\node at (7,-6) [day] {};
\node at (7,-7) [day] {};
\node at (7,-8) [day] {};
\node at (7,-9) [day] {};
\node at (7,-10) [day] {};
\node at (7,-11) [weekendday] {};
\node at (7,-12) [weekendday] {};
\node at (7,-13) [day] {};
\node at (7,-14) [day] {};
\node at (7,-15) [day] {};
\node at (7,-16) [day] {};
\node at (7,-17) [day] {};
\node at (7,-18) [weekendday] {};
\node at (7,-19) [weekendday] {};
\node at (7,-20) [day] {};
\node at (7,-21) [day] {};
\node at (7,-22) [day] {};
\node at (7,-23) [day] {};
\node at (7,-24) [day] {};
\node at (7,-25) [weekendday] {};
\node at (7,-26) [weekendday] {};
\node at (7,-27) [day] {};
\node at (7,-28) [day] {};
\node at (7,-29) [day] {};
\node at (7,-30) [day] {};
 
 
\node at (8,-1) [day] {};
\node at (8,-2) [weekendday] {};
\node at (8,-3) [weekendday] {};
\node at (8,-4) [day] {};
\node at (8,-5) [day] {};
\node at (8,-6) [day] {};
\node at (8,-7) [day] {};
\node at (8,-8) [day] {};
\node at (8,-9) [weekendday] {};
\node at (8,-10) [weekendday] {};
\node at (8,-11) [day] {};
\node at (8,-12) [day] {};
\node at (8,-13) [day] {};
\node at (8,-14) [day] {};
\node at (8,-15) [day] {};
\node at (8,-16) [weekendday] {};
\node at (8,-17) [weekendday] {};
\node at (8,-18) [day] {};
\node at (8,-19) [day] {};
\node at (8,-20) [day] {};
\node at (8,-21) [day] {};
\node at (8,-22) [day] {};
\node at (8,-23) [weekendday] {};
\node at (8,-24) [weekendday] {};
\node at (8,-25) [day] {};
\node at (8,-26) [day] {};
\node at (8,-27) [day] {};
\node at (8,-28) [day] {};
\node at (8,-29) [day] {};
\node at (8,-30) [weekendday] {};
\node at (8,-31) [weekendday] {};
 
 
\node at (9,-1) [day] {};
\node at (9,-2) [day] {};
\node at (9,-3) [day] {};
\node at (9,-4) [day] {};
\node at (9,-5) [day] {};
\node at (9,-6) [weekendday] {};
\node at (9,-7) [weekendday] {};
\node at (9,-8) [day] {};
\node at (9,-9) [day] {};
\node at (9,-10) [day] {};
\node at (9,-11) [day] {};
\node at (9,-12) [day] {};
\node at (9,-13) [weekendday] {};
\node at (9,-14) [weekendday] {};
\node at (9,-15) [day] {};
\node at (9,-16) [day] {};
\node at (9,-17) [day] {};
\node at (9,-18) [day] {};
\node at (9,-19) [day] {};
\node at (9,-20) [weekendday] {};
\node at (9,-21) [weekendday] {};
\node at (9,-22) [day] {};
\node at (9,-23) [day] {};
\node at (9,-24) [day] {};
\node at (9,-25) [day] {};
\node at (9,-26) [day] {};
\node at (9,-27) [weekendday] {};
\node at (9,-28) [weekendday] {};
\node at (9,-29) [day] {};
\node at (9,-30) [day] {};
\node at (9,-31) [day] {};
 
\node at (10,-1) [day] {};
\node at (10,-2) [day] {};
\node at (10,-3) [weekendday] {};
\node at (10,-4) [weekendday] {};
\node at (10,-5) [day] {};
\node at (10,-6) [day] {};
\node at (10,-7) [day] {};
\node at (10,-8) [day] {};
\node at (10,-9) [day] {};
\node at (10,-10) [weekendday] {};
\node at (10,-11) [weekendday] {};
\node at (10,-12) [day] {};
\node at (10,-13) [day] {};
\node at (10,-14) [day] {};
\node at (10,-15) [day] {};
\node at (10,-16) [day] {};
\node at (10,-17) [weekendday] {};
\node at (10,-18) [weekendday] {};
\node at (10,-19) [day] {};
\node at (10,-20) [day] {};
\node at (10,-21) [day] {};
\node at (10,-22) [day] {};
\node at (10,-23) [day] {};
\node at (10,-24) [weekendday] {};
\node at (10,-25) [weekendday] {};
\node at (10,-26) [day] {};
\node at (10,-27) [day] {};
\node at (10,-28) [day] {};
\node at (10,-29) [day] {};
\node at (10,-30) [day] {};
 
 
\node at (11,-1) [weekendday] {};
\node at (11,-2) [weekendday] {};
\node at (11,-3) [day] {};
\node at (11,-4) [day] {};
\node at (11,-5) [day] {};
\node at (11,-6) [day] {};
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\node at (11,-8) [weekendday] {};
\node at (11,-9) [weekendday] {};
\node at (11,-10) [day] {};
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\node at (11,-12) [day] {};
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\node at (11,-14) [day] {};
\node at (11,-15) [weekendday] {};
\node at (11,-16) [weekendday] {};
\node at (11,-17) [day] {};
\node at (11,-18) [day] {};
\node at (11,-19) [day] {};
\node at (11,-20) [day] {};
\node at (11,-21) [day] {};
\node at (11,-22) [weekendday] {};
\node at (11,-23) [weekendday] {};
\node at (11,-24) [day] {};
\node at (11,-25) [day] {};
\node at (11,-26) [day] {};
\node at (11,-27) [day] {};
\node at (11,-28) [day] {};
\node at (11,-29) [weekendday] {};
\node at (11,-30) [weekendday] {};
\node at (11,-31) [day] {};
 
\end{tikzpicture}
\end{center}
 
\end{document}

Uwe

Uwe Ziegenhagen likes LaTeX and Python, sometimes even combined. Do you like my content and would like to thank me for it? Consider making a small donation to my local fablab, the Dingfabrik Köln. Details on how to donate can be found here Spenden für die Dingfabrik.

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HTTPS

2017-10-22, 11:59

uweziegenhagen.de ist jetzt auch über HTTPS erreichbar. Die Konfiguration über das Online-Portal von Hetzner war in knapp zwei Minuten erledigt:

  1. In der Hetzner-Konsole unter Extras > SSL-Manager im Tab „Basic SSL-Zertifikate“ ein neues Zertifikat erstellen.
  2. Auf dem Tab „SSL-Accounts“ dann unter Zertifikat das eben erstellte auswählen und auf das Schloss links vom Accountnamen klicken.
  3. Die Frage bestätigen.
  4. In WordPress unter Einstellungen > Allgemeines die URLs auf HTTPS umstellen.

Uwe

Uwe Ziegenhagen likes LaTeX and Python, sometimes even combined. Do you like my content and would like to thank me for it? Consider making a small donation to my local fablab, the Dingfabrik Köln. Details on how to donate can be found here Spenden für die Dingfabrik.

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Category: Allgemein  |  Kommentare deaktiviert für HTTPS

Creating sparklines with LaTeX

2017-09-24, 11:46

Sparklines, invented by Edward Tufte (check out his awesome books!), are an interesting way of visualizing information inside the text. For more information on the theoretical background check Prof. Tufte’s page https://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=0001OR.

For LaTeX users there are a few ways of using them inside LaTeX which we will briefly introduce in this article.

1. Using the sparklines package.

Examples taken from the package documentation.

\documentclass[12pt]{article}
 
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{sparklines}
 
\begin{document}
 
Hello, I am a 
\begin{sparkline}{10}
\sparkrectangle 0.0 1.1
\sparkdot 0.25 0.62 blue
\sparkdot 1 0.2 red
\spark 0.1 0.95  0.2 0.8  0.3 0.3  0.4 0.52  0.5 0.62
0.6 0.7   0.7 0.5  0.8 0.4  0.9 0.25  1 0.2 /
\end{sparkline}
sparkline in a document.
 
You can also 
\begin{sparkline}{5}
\sparkspike .083 .18
\sparkspike .25 .55
\sparkspike .417 1
\sparkspike .583 .62
\sparkspike .75 .42
\sparkspike .917 .5
\end{sparkline}
use sparkbars.
 
Both types can
\begin{sparkline}{5}
\sparkspike .083 .18
\sparkspike .25 .55
\sparkspike .417 1
\sparkspike .583 .62
\sparkspike .75 .42
\sparkspike .917 .5
\spark 0.1 0.95  0.2 0.8  0.3 0.3  0.4 0.52  0.5 0.62
0.6 0.7   0.7 0.5  0.8 0.4  0.9 0.25  1 0.2 /
\sparkdot 1 0.2 blue
\end{sparkline} also be combined.
 
\end{document}

2. Using the AfterTheFlood OTF font with the spark-OTF package by Herbert Voß

A few days ago I found information about a sparklines OTF font on Twitter which I then shared with the German TeX community. Herbert Voß created a few commands to use these fonts inside documents and packaged them.

When you update your TeX Live 2017 you should automatically get this package. In addition you need to install the fonts from After the Flood which are available from github.

Remark: as of 2017-09-24 the spark-otf package seems to have issues when compiled with xeLaTeX (at least with Windows). Use luaLaTeX to compile this. Update: With version 0.04 of the package xelatex is working fine.

\documentclass[12pt]{article}
 
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{sparklines}
 
\begin{document}
 
Hello, I am a 
\begin{sparkline}{10}
\sparkrectangle 0.0 1.1
\sparkdot 0.25 0.62 blue
\sparkdot 1 0.2 red
\spark 0.1 0.95  0.2 0.8  0.3 0.3  0.4 0.52  0.5 0.62
0.6 0.7   0.7 0.5  0.8 0.4  0.9 0.25  1 0.2 /
\end{sparkline}
sparkline in a document.
 
You can also 
\begin{sparkline}{5}
\sparkspike .083 .18
\sparkspike .25 .55
\sparkspike .417 1
\sparkspike .583 .62
\sparkspike .75 .42
\sparkspike .917 .5
\end{sparkline}
use sparkbars.
 
 
Both types can
\begin{sparkline}{5}
\sparkspike .083 .18
\sparkspike .25 .55
\sparkspike .417 1
\sparkspike .583 .62
\sparkspike .75 .42
\sparkspike .917 .5
\spark 0.1 0.95  0.2 0.8  0.3 0.3  0.4 0.52  0.5 0.62
0.6 0.7   0.7 0.5  0.8 0.4  0.9 0.25  1 0.2 /
\sparkdot 1 0.2 blue
\end{sparkline} also be combined.
 
\end{document}

Uwe

Uwe Ziegenhagen likes LaTeX and Python, sometimes even combined. Do you like my content and would like to thank me for it? Consider making a small donation to my local fablab, the Dingfabrik Köln. Details on how to donate can be found here Spenden für die Dingfabrik.

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Erste Schritte mit Python und Qt 5

2017-03-12, 12:16

Hier ein einfaches Beispiel, wie man mit Python und Qt 5 Desktop-Anwendungen bauen kann. Ich persönlich nutze Anaconda3, hier ist alles bei, was man dafür braucht.

Im Qt Designer (unter Anaconda3\Library\bin) erstellen wir ein neues GUI auf Basis von „Main Window“ und setzen einen Button und ein Label rauf. Das ganze wird dann abgespeichert, anschließend erstellen wir den notwendigen Python-Code.

# -*- coding: utf-8 -*-
import sys
from PyQt5.QtWidgets import QMainWindow, QApplication
from PyQt5 import uic
 
Ui_MainWindow, QtBaseClass = uic.loadUiType('test.ui')
 
class MyApp(QMainWindow):
    def __init__(self):
        super(MyApp, self).__init__()
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)
        self.ui.pushButton.clicked.connect(self.changeLabel)
 
    def changeLabel(self):
        self.ui.label.setText('Hello World')
 
if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MyApp()
    window.show()
    sys.exit(app.exec_())

Uwe

Uwe Ziegenhagen likes LaTeX and Python, sometimes even combined. Do you like my content and would like to thank me for it? Consider making a small donation to my local fablab, the Dingfabrik Köln. Details on how to donate can be found here Spenden für die Dingfabrik.

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LaTeX-Dateien vergleich mit latexdiff

2017-01-15, 07:53

latexdiff ist Bestandteil von TeX Live und erlaubt es, die Unterschiede zwischen zwei LaTeX-Dateien hervorzuheben. Hier ein Beispiel mit einem kurzen Textschnipsel aus der Wikipedia:

Das Original (Giraffe1.tex)

\documentclass[12pt,ngerman]{scrartcl}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{babel}
\usepackage{csquotes}
\begin{document}
 
Die Giraffen (Giraffa) sind eine Gattung der Säugetiere aus der Ordnung der Paarhufer. Ursprünglich wurden ihr mit Giraffa camelopardalis und der Trivialbezeichnung \enquote{Giraffe} nur eine einzige Art zugewiesen. Molekulargenetische Untersuchungen aus dem Jahr 2016 zeigen jedoch, dass die Gattung wenigstens vier Arten mit sieben eigenständigen Populationen umfasst. Die Giraffen stellen die höchsten landlebenden Tiere der Welt. Zur Unterscheidung vom verwandten Okapi (sogenannte \enquote{Waldgiraffe}) werden sie auch als Steppengiraffen bezeichnet.
 
\end{document}

Eine Version mit leichten Änderungen (Giraffe2.tex)

\documentclass[12pt,ngerman]{scrartcl}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{babel}
\usepackage{csquotes}
\begin{document}
 
Die Giraffen (Giraffa) sind eine Gattung der Säugetiere aus der Ordnung der Paarhufer. Ursprünglich wurden ihr mit Giraffa camelopardalis und der Trivialbezeichnung \enquote{Giraffe} nur eine einzige Art zugewiesen. Untersuchungen aus dem Jahr 2016 zeigten jedoch, dass die Gattung wenigstens 4 Arten mit 7 eigenständigen Populationen umfasst. Die Giraffen stellen die höchsten landlebenden Tiere der Welt. Zur Unterscheidung vom verwandten Okapi (der sogenannten \enquote{Waldgiraffe}) werden sie auch als Steppengiraffen bezeichnet.
 
\end{document}

Auf der Kommandozeile ruft man jetzt auf latexdiff Giraffe1.tex Giraffe2.tex > Giraffediff.tex und übersetzt die neu erzeugte Datei nach PDF, das dann wie folgt aussieht:

Uwe

Uwe Ziegenhagen likes LaTeX and Python, sometimes even combined. Do you like my content and would like to thank me for it? Consider making a small donation to my local fablab, the Dingfabrik Köln. Details on how to donate can be found here Spenden für die Dingfabrik.

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Sichere (deutsche) Passwörter mit Python und xkcdpass

2016-10-02, 18:10

Menschen sind schlecht darin, sich gute lange Passwörter zu merken. Computer sind dafür prädestiniert, schlechte (weil kurze) Passwörter zu knacken. Randall Munroe hat das in einem recht bekannten XKCD Comic dargestellt.

Mit xkcdpass (Link) gibt es ein Python-Modul zur Erstellung von Passwörtern nach dem „xkcd-Schema“, das sich mittels pip install xkcdpass einfach installieren lässt.

Startet man xkcdpass ohne weitere Parameter, so spuckt es einfach eine Reihe englischer Wörter aus:

C:\Users\Uwe>xkcdpass
tackle tonsorial satisfied gecko fission decor

Um xkcdpass die Ausgabe deutscher Passwörter beizubringen, geht man wie folgt vor.

1) Mittels --help Parameter kommt man an die Liste aller Optionen, hier ist besonders -w für die Angabe der Wortdatei spannend.

C:\Users\Uwe>xkcdpass --help
usage: xkcdpass [-h] [-w WORDFILE] [--min MIN_LENGTH] [--max MAX_LENGTH]
                [-n NUM_WORDS] [-i] [-v VALID_CHARS] [-V] [-a ACROSTIC]
                [-c COUNT] [-d DELIM] [--allow-weak-rng]

optional arguments:
  -h, --help            show this help message and exit
  -w WORDFILE, --wordfile WORDFILE
                        Specify that the file WORDFILE contains the list of
                        valid words from which to generate passphrases.
  --min MIN_LENGTH      Generate passphrases containing at least MIN_LENGTH
                        words.
  --max MAX_LENGTH      Generate passphrases containing at most MAX_LENGTH
                        words.
  -n NUM_WORDS, --numwords NUM_WORDS
                        Generate passphrases containing exactly NUM_WORDS
                        words.
  -i, --interactive     Generate and output a passphrase, query the user to
                        accept it, and loop until one is accepted.
  -v VALID_CHARS, --valid-chars VALID_CHARS
                        Limit passphrases to only include words matching the
                        regex pattern VALID_CHARS (e.g. '[a-z]').
  -V, --verbose         Report various metrics for given options.
  -a ACROSTIC, --acrostic ACROSTIC
                        Generate passphrases with an acrostic matching
                        ACROSTIC.
  -c COUNT, --count COUNT
                        Generate COUNT passphrases.
  -d DELIM, --delimiter DELIM
                        Separate words within a passphrase with DELIM.
  --allow-weak-rng      Allow fallback to weak RNG if the system does not
                        support cryptographically secure RNG. Only use this if
                        you know what you are doing.

2) Man besorgt sich eine Datei mit dem deutschen Wortschatz, per Google bin ich auf die folgende Seite der Uni Leipzig gestoßen: http://wortschatz.uni-leipzig.de/html/wliste.html. Hier gibt es Listen für die häufigsten 100, 1000 und 10’000 Wörter der deutschen Sprache (sowie auch für französisch, englisch und niederländisch). Die Liste mit den 10’000 häufigsten Wörtern speichern wir ab.

Ein Hinweis noch zur sprachlichen Einschätzung der 10000 Wörter: Der Duden geht davon aus, dass ein durchschnittlicher Deutsch-Sprecher zwischen 12’000 und 16’000 Wörter spricht, aber rund 50’000 deutsche Worte versteht.

3) Mit der Wortschatzdatei auf der Festplatte können wir jetzt einfach wieder xkcdpass aufrufen und nutzen gleich noch -c 10 für die Erzeugung von 10 Zeilen mit jeweils sechs Passwörtern:

C:\Users\Uwe>xkcdpass -c 10 -w e:\top10000de.txt
Munition Alexander Bernhard Wissen Erstmals geraumer
wissen genießt wenigen Verlierer wunderbar Teufel
Wiesen Hartmut länger römische älter Stimme
irgendwie Monitor operative läuft Vertrieb Optionen
Stahl Brust Polizei Hoffnung Verlauf runden
Ärzte Mafia Dieter Pakistan Systems Areal
trieb hinweg Kanzlers unterlag zweimal zuviel
vollzogen Sparen zwölf verlieren Dutzende Länge
Infotyp beliebten gewisser Malerei gefunden Blätter
Peking äußerten fährt Einblick Interesse schwach

Uwe

Uwe Ziegenhagen likes LaTeX and Python, sometimes even combined. Do you like my content and would like to thank me for it? Consider making a small donation to my local fablab, the Dingfabrik Köln. Details on how to donate can be found here Spenden für die Dingfabrik.

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Example for pandas Merge

2016-09-28, 20:42

Here’s an example for the merge capabilities of pandas, which allow the user to work with DataFrames just like in SQL.

import pandas as pd
 
dfA = pd.DataFrame({'A': ['A0','A1','A2','A3'], 'Key': ['K0','K1','K2','K4']})
dfB = pd.DataFrame({'B': ['B0','B1','B2','B3'], 'Key': ['K0','K1','K2','K5']})
 
print('\nDaten\n')
print(dfA,'\n')
 
print(dfB,'\n')
 
dfInner = dfA.merge(dfB,how='inner',left_on='Key',right_on='Key')
 
print('Inner:\n', dfInner, '\n')
 
dfLeft = dfA.merge(dfB,how='left',left_on='Key',right_on='Key')
 
print('Left:\n', dfLeft, '\n')
 
dfRight = dfA.merge(dfB,how='right',left_on='Key',right_on='Key')
 
print('Right:\n', dfRight, '\n')
 
dfOuter = dfA.merge(dfB,how='outer',left_on='Key',right_on='Key')
 
print('Outer:\n', dfOuter, '\n')

Uwe

Uwe Ziegenhagen likes LaTeX and Python, sometimes even combined. Do you like my content and would like to thank me for it? Consider making a small donation to my local fablab, the Dingfabrik Köln. Details on how to donate can be found here Spenden für die Dingfabrik.

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