uweziegenhagen.de

\documentclass{article}
 
% Load hyperref with form support
\usepackage{hyperref}
 
\hypersetup{
  pdfauthor={Your Name},
  pdftitle={Sample Fillable PDF Form},
  pdfcreator={LaTeX with hyperref}
}
 
\begin{document}
 
\section*{Beispielformular}
 
Bitte ausfüllen!
 
\vspace{1em}
 
\noindent
\textbf{Name:}\\[0.5em]
\TextField[
  name=name,
  width=0.8\linewidth,
  bordercolor={0 0 0}
]{}
 
\vspace{1em}
 
\noindent
\textbf{E-Mail:}\\[0.5em]
\TextField[
  name=email,
  width=0.8\linewidth,
  bordercolor={0 0 0}
]{}
 
\vspace{1em}
 
\noindent
\textbf{Alter:}\\[0.5em]
\TextField[
  name=age,
  width=4cm]{}
 
\vspace{1em}
 
\noindent
\textbf{Lieblingsfrucht:}\\[0.5em]
\ChoiceMenu[
  name=gender,
  width=4cm,
  combo
]{Wählen einen Eintrag: }{Apfel,Birne,Kirsche}
 
\vspace{1em}
 
\noindent
\textbf{Newletter abonnieren?}\\[0.5em]
\CheckBox[name=subscribe]{} Ja
 
\vspace{1.5em}
 
\noindent
\textbf{Anmerkungen:}\\[0.5em]
\TextField[
  name=comments,
  width=\linewidth,
  height=3cm,
  multiline=true
]{}
 
\vspace{1.5em}
 
\noindent\PushButton[
  name=print,
  onclick={this.print({bUI:true,bSilent:false,bShrinkToFit:true});},
  bordercolor={0 0 0},
  width=4cm,
  height=1cm
]{Print Form}
 
\end{document}

 
from PIL import Image, ImageChops # generic
import numpy as np # numerical
from skimage.metrics import structural_similarity as ssim
import cv2
 
# Load the images
img1 = Image.open("1.png")
img2 = Image.open("2.png")
 
# Compute absolute difference
diff = ImageChops.difference(img1, img2)
 
# Save or show the difference image
diff.save("difference.png")
diff.show()
 
 
# Load PNGs into numpy arrays
img1 = np.array(Image.open("1.png"))
img2 = np.array(Image.open("2.png"))
 
# Compute pixel-wise absolute difference
diff = np.abs(img1.astype(int) - img2.astype(int))
 
# Save result
Image.fromarray(diff.astype(np.uint8)).save("difference.png")
# Or compute some stats:
print("Mean difference:", diff.mean())
print("Max difference:", diff.max())
 
 
# Convert to grayscale
gray1 = cv2.cvtColor(img1, cv2.COLOR_BGR2GRAY)
gray2 = cv2.cvtColor(img2, cv2.COLOR_BGR2GRAY)
 
score, diff = ssim(gray1, gray2, full=True)
print("SSIM:", score)
 
# diff is in [0,1]; scale to 0-255 to view as an image
diff = (diff * 255).astype("uint8")
cv2.imwrite("ssim_diff.png", diff)

%!TEX TS-program = pdflatex
\documentclass[12pt,ngerman,tikz]{standalone}
 
\begin{document}
\begin{tikzpicture}[red,draw=red, fill=red]
 
% a plug
\newcommand{\plug}[2]{% three circles, inner one is filled
    \fill (#1,#2) circle (0.1875cm);
    \draw (#1,#2) circle (0.28cm);
    \draw (#1,#2) circle (0.42cm);
}
 
% buttons
\newcommand{\button}[2]{% three circles, inner one is filled
    \fill (#1,#2) circle (0.5cm);
    \fill[white] (#1,#2) circle (0.4cm);
}
 
% a plug with a label above
\newcommand{\labelplug}[3]{%
    \fill (#1,#2) circle (0.1875cm);
    \draw (#1,#2) circle (0.28cm);
    \draw (#1,#2) circle (0.42cm);
    \node[above=0.35cm,font=\sffamily\bfseries\scriptsize] at (#1,+#2) {#3};
}
 
%  \knob{x}{y}{size}{angle} 
\newcommand{\knob}[4]{%
  \pgfmathsetmacro{\radius}{#3}%
  \pgfmathsetmacro{\reduced}{\radius * 0.8}%
  \pgfmathsetmacro{\tikzAngle}{90 - #4}%
  \draw[thick, fill=white!30] (#1,#2) circle (\radius cm);
  \draw[line width=2pt, red] (#1,#2) -- ++(\tikzAngle:\reduced cm);
}
 
% plug with label and led, in a frame
\newcommand{\labelplugled}[3]{%
    \fill (#1,#2) circle (0.1875cm);
    \draw (#1,#2) circle (0.28cm);
    \draw (#1,#2) circle (0.42cm);
    \node[above=0.35cm,font=\sffamily\bfseries\scriptsize] at (#1,#2) {#3};
     \draw[rounded corners=2pt]
      (#1-0.5, #2-0.5)
        rectangle
      (#1+0.5, {#2+1.2});
    \draw (#1,#2+0.945) circle (0.1cm);
}
 
% plug with label but no led, in a frame
\newcommand{\labelplugnoled}[3]{%
    \fill (#1,#2) circle (0.1875cm);
    \draw (#1,#2) circle (0.28cm);
    \draw (#1,#2) circle (0.42cm);
    \node[above=0.35cm,font=\sffamily\bfseries\scriptsize] at (#1,#2) {#3};
     \draw[rounded corners=2pt]
      (#1-0.5, #2-0.5)
        rectangle
      (#1+0.5, {#2+1.2});
 
}
 
% Screenshot from the manual, in the background
%\node[anchor=north west ,inner sep=0] (frame1) at (1,13)    {\includegraphics[width=10cm]{2025-09-20 04 09 06.png}};
 
% grid
\draw[help lines,red] (0,0) grid (13,14);
 
\draw[very thick, rounded corners=2pt](1,0.35) rectangle (11,13);
 
\labelplug{1.75}{11.5}{IN 1};
\labelplug{2.85}{11.5}{TRIG 1};
 
\labelplug{5.45}{11.5}{IN 2};
\labelplug{6.55}{11.5}{IN 3};
 
\labelplug{9.175}{11.5}{TRIG 4};
\labelplug{10.25}{11.5}{IN 4};
 
\plug{1.75}{10.2};
\plug{1.75}{9};
\plug{1.75}{7.9};
\plug{1.75}{6.55};
 
\plug{10.25}{10.2};
\plug{10.25}{9};
\plug{10.25}{7.9};
\plug{10.25}{6.55};
 
 
\labelplugled{1.75}{1.8}{EOR};
\labelplugled{2.9}{1.8}{$\smallint$};
 
\labelplugnoled{4.9}{1.8}{OR};
\labelplugled{6}{1.8}{SUM};
\labelplugnoled{7.1}{1.8}{INV};
 
\labelplugled{9.14}{1.8}{$\smallint$};
\labelplugled{10.25}{1.8}{EOC};
 
\labelplugnoled{4.25}{3.6}{OUT 1};
\labelplugnoled{5.4}{3.6}{OUT 2};
\labelplugnoled{6.55}{3.6}{OUT 3};
\labelplugnoled{7.7}{3.6}{OUT 4};
 
\knob{3.5}{10.2}{0.7}{0}
\knob{8.5}{10.2}{0.7}{0}
 
\knob{3.5}{7.9}{0.7}{0}
\knob{8.5}{7.9}{0.7}{0}
 
\knob{3.5}{5.7}{0.7}{0}
\knob{8.5}{5.7}{0.7}{0}
 
\knob{5}{9}{0.35}{0}
\knob{7}{9}{0.35}{0}
\knob{5}{6.75}{0.35}{0}
\knob{7}{6.75}{0.35}{0}
 
\button{2.3}{4.15}
\button{9.7}{4.15}
 
\node at (5,9.6){\sffamily\bfseries\footnotesize1};
\node at (7,9.6){\sffamily\bfseries\footnotesize4};
\node at (5,7.35){\sffamily\bfseries\footnotesize2};
\node at (7,7.35){\sffamily\bfseries\footnotesize4};
 
\node at (4.75,8.5){\sffamily\bfseries--};
\node at (5.3,8.5){\sffamily\bfseries+};
\node at (4.75,6.25){\sffamily\bfseries--};
\node at (5.3,6.25){\sffamily\bfseries+};
 
\node at (6.75,8.5){\sffamily\bfseries--};
\node at (7.3,8.5){\sffamily\bfseries+};
\node at (6.75,6.25){\sffamily\bfseries--};
\node at (7.3,6.25){\sffamily\bfseries+};
 
 
\draw[very thick] (3.4,11.5) -- (3.95,11.5) -- (5,10.5) -- (5,9.8);
\draw[very thick] (8.7,11.5) -- (8.1,11.5) -- (7,10.5) -- (7,9.8);
 
\draw[very thick] (5.45,10.85) -- (5.7,10.6) -- (5.7,7.5) -- (5.3,7.1);
\draw[very thick] (6.55,10.85) -- (6.3,10.6) -- (6.3,7.5) -- (6.7,7.1);
 
\foreach \x in {0,1,2,3,4,5,6,7,8,9,10,11,12} {
\node(a) at (\x,-0.5){\x};}
 
\foreach \y in {0,1,2,3,4,5,6,7,8,9,10,11,12,13} {
\node(a) at (0.5,\y){\y};}
 
\end{tikzpicture}
\end{document}

%!TEX TS-program = Arara
% arara: lualatex: {shell: no}
\documentclass{scrartcl}
\usepackage[margin=1cm]{geometry}
\usepackage{tikz}
 
\begin{document}
 
\begin{tikzpicture}
    % Define the pattern as a comma-separated list
    \def\pattern{x,-,x,x,-,x,x,-,-,-,x,x,-,-,-,x}
    \def\cellsizex{1cm}
    \def\cellsizey{0.5cm}
 
    %\draw (0,0) rectangle ++ (\cellsizex-1, \cellsizey);
    \node[draw, rectangle,minimum width = \cellsizex, align=left,minimum height=\cellsizey] (a) at (\cellsizex/2,\cellsizey/2){1}; 
 
    % Loop through each character in the pattern
    \foreach \cell [count=\index from 1] in \pattern {
        % If 'x' fill the cell, otherwise leave it empty
        \if\cell x
            \fill[gray,draw=black] ({\index*\cellsizex}, 0) rectangle ++(\cellsizex, \cellsizey);
        \else
            \draw ({\index*\cellsizex}, 0) rectangle ++(\cellsizex, \cellsizey);
        \fi
    }
\end{tikzpicture}
 
\end{document}

\documentclass{scrartcl}
\usepackage[T1]{fontenc}
\usepackage{tikz}
 
\begin{document}
 
\begin{tikzpicture}
\shade[inner color = gray, outer color = white] (0,0) circle [radius = 1];
\end{tikzpicture}
 
\end{document}

\documentclass{article}
\usepackage[pattern=iso, %tri für senkrecht
patternsize=0.5cm,
textarea,
bgcolor=white,
%majorcolor={green},
minorcolor={lightgray},
geometry={a4paper, margin=1cm}]{gridpapers}
\begin{document}
\thispagestyle{empty}
~
\end{document}

\documentclass[12pt,ngerman]{scrartcl}
\usepackage[margin=1cm]{geometry}
\usepackage[T1]{fontenc}
\usepackage{babel}
\usepackage{graphicx}
\usepackage{xcolor}
\usepackage{tikz}
 
\begin{document}
 
\begin{tikzpicture}
    % Define the pattern as a comma-separated list
    \def\pattern{x,-,-,-,-,x,x,-,-,-,x,x,-,-,-,x}
    \def\cellsizex{1cm}
    \def\cellsizey{0.5cm}
 
    \node[draw, rectangle,minimum width = \cellsizex, align=left,minimum height=\cellsizey] (a) at (\cellsizex/2,\cellsizey/2){\tiny 1}; 
 
    % Loop through each character in the pattern
    \foreach \cell [count=\index from 1] in \pattern {
        % If 'x' fill the cell, otherwise leave it empty
        \if\cell x
            \fill[gray,draw=black] ({\index*\cellsizex}, 0) rectangle ++(\cellsizex, \cellsizey);
        \else
            \draw ({\index*\cellsizex}, 0) rectangle ++(\cellsizex, \cellsizey);
        \fi
    }
\end{tikzpicture}