Add proper values for matplotlib coolwarm colormap

Makefile

@@ -1,11 +1,11 @@
 SRCS=$(shell find examples -type f -name "*.tex")
 PDFS=$(shell echo $(SRCS:.tex=.pdf) | sed -e "s/examples\\///g")
 
+all: $(PDFS)
+
 %.pdf: examples/%.tex
 	latexmk $<
 
-all: $(PDFS)
-
 clean:
 	rm -rf build
 

README.md

@@ -26,7 +26,7 @@ $ make
     ```bash
     $ docker build -f dockerfiles/Dockerfile.alpine . -t latex-common
     ```
-2. Build example
+2. Build examples
     ```bash
     $ docker run --rm -v $PWD:$PWD -w $PWD -u `id -u`:`id -g` latex-common make
     ```

common.tex

@@ -5,7 +5,6 @@
 % ||====================================================================||
 % ||                               WARNING                              ||
 % ||====================================================================||
-% ||                                                                    ||
 % || The following packages have to be included before using this file: ||
 % ||      amsmath                                                       ||
 % ||      pgfplots                                                      ||
@@ -23,7 +22,7 @@
 
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% Graphics & Plotting %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% Data Manipulation %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 
@@ -72,21 +71,17 @@
     }
 }
 
-%
-% Styles
-%
 
-
-\pgfplotsset{
-	fancy marks/.style={
-		% TODO
-	}
-}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% Graphics & Plotting %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 %
 % Colors
 %
 
+% KIT Colors
+
 \definecolor{kit-green100}{rgb}{0,.59,.51}
 \definecolor{kit-green70}{rgb}{.3,.71,.65}
 \definecolor{kit-green50}{rgb}{.50,.79,.75}
@@ -143,6 +138,19 @@
 \colorlet{kit-cyanblue30}{KITcyanblue!30}
 \colorlet{kit-cyanblue15}{KITcyanblue!15}
 
+% Matplotlib Colors
+
+\definecolor{Mpl1}{HTML}{1f77b4}
+\definecolor{Mpl2}{HTML}{ff7f0e}
+\definecolor{Mpl3}{HTML}{2ca02c}
+\definecolor{Mpl4}{HTML}{d62728}
+\definecolor{Mpl5}{HTML}{9467bd}
+\definecolor{Mpl6}{HTML}{8c564b}
+\definecolor{Mpl7}{HTML}{e377c2}
+\definecolor{Mpl8}{HTML}{7f7f7f}
+\definecolor{Mpl9}{HTML}{bcbd22}
+\definecolor{Mpl10}{HTML}{17becf}
+
 %
 % Color Schemes
 %
@@ -180,6 +188,42 @@
  		color=(kit-green70);
 		color=(kit-yellow70!80!kit-orange70);
 	},
+	colormap={matplotlib}{
+		% Source: https://github.com/matplotlib/matplotlib/blob/e5a85f960b2d47eac371cff709b830d52c36d267/lib/matplotlib/_cm.py#L1114
+        rgb=(0.2298057,   0.298717966, 0.753683153)
+        rgb=(0.26623388,  0.353094838, 0.801466763)
+        rgb=(0.30386891,  0.406535296, 0.84495867 )
+        rgb=(0.342804478, 0.458757618, 0.883725899)
+        rgb=(0.38301334,  0.50941904,  0.917387822)
+        rgb=(0.424369608, 0.558148092, 0.945619588)
+        rgb=(0.46666708,  0.604562568, 0.968154911)
+        rgb=(0.509635204, 0.648280772, 0.98478814 )
+        rgb=(0.552953156, 0.688929332, 0.995375608)
+        rgb=(0.596262162, 0.726149107, 0.999836203)
+        rgb=(0.639176211, 0.759599947, 0.998151185)
+        rgb=(0.681291281, 0.788964712, 0.990363227)
+        rgb=(0.722193294, 0.813952739, 0.976574709)
+        rgb=(0.761464949, 0.834302879, 0.956945269)
+        rgb=(0.798691636, 0.849786142, 0.931688648)
+        rgb=(0.833466556, 0.860207984, 0.901068838)
+        rgb=(0.865395197, 0.86541021,  0.865395561)
+        rgb=(0.897787179, 0.848937047, 0.820880546)
+        rgb=(0.924127593, 0.827384882, 0.774508472)
+        rgb=(0.944468518, 0.800927443, 0.726736146)
+        rgb=(0.958852946, 0.769767752, 0.678007945)
+        rgb=(0.96732803,  0.734132809, 0.628751763)
+        rgb=(0.969954137, 0.694266682, 0.579375448)
+        rgb=(0.966811177, 0.650421156, 0.530263762)
+        rgb=(0.958003065, 0.602842431, 0.481775914)
+        rgb=(0.943660866, 0.551750968, 0.434243684)
+        rgb=(0.923944917, 0.49730856,  0.387970225)
+        rgb=(0.89904617,  0.439559467, 0.343229596)
+        rgb=(0.869186849, 0.378313092, 0.300267182)
+        rgb=(0.834620542, 0.312874446, 0.259301199)
+        rgb=(0.795631745, 0.24128379,  0.220525627)
+        rgb=(0.752534934, 0.157246067, 0.184115123)
+        rgb=(0.705673158, 0.01555616,  0.150232812)
+	}
 }
 
 % Define cycle lists
@@ -199,8 +243,11 @@
 \pgfplotscreateplotcyclelist{cel}{%
 	[samples of colormap={4} of cel]%
 }
+\pgfplotscreateplotcyclelist{matplotlib}{%
+	{Mpl1},{Mpl2},{Mpl3},{Mpl4}
+}
 
-% Define individual colors
+% Define 'scolX' colors
 
 \makeatletter
 
@@ -219,40 +266,52 @@
 
 \makeatother
 
-\def\setschemecolors{
+\def\setschemecolorsfrommap{
 	\extractcolormapcolor{scol0}{0}
 	\extractcolormapcolor{scol1}{333}
 	\extractcolormapcolor{scol2}{666}
 	\extractcolormapcolor{scol3}{1000}
 }
 
+\newcommand{\setschemecolorsmanually}[4]{
+	\colorlet{scol0}{#1}
+	\colorlet{scol1}{#2}
+	\colorlet{scol2}{#3}
+	\colorlet{scol3}{#4}
+}
+
 % Define color schemes
 
 \pgfplotsset{
-	/pgfplots/colorscheme/mako/.style={
-		colormap name={mako},
-		cycle list name={mako},
-		/utils/exec={\setschemecolors},
+	/pgfplots/colorscheme/cel/.style={
+		colormap name={cel},
+		cycle list name={cel},
+		/utils/exec={\setschemecolorsfrommap},
 	},
 	/pgfplots/colorscheme/rocket/.style={
 		colormap name={rocket},
 		cycle list name={rocket},
-		/utils/exec={\setschemecolors},
-	},
-	/pgfplots/colorscheme/cividis/.style={
-		colormap name={cividis},
-		cycle list name={cividis},
-		/utils/exec={\setschemecolors},
+		/utils/exec={\setschemecolorsfrommap},
 	},
 	/pgfplots/colorscheme/viridis/.style={
 		colormap name={viridis},
 		cycle list name={viridis},
-		/utils/exec={\setschemecolors},
+		/utils/exec={\setschemecolorsfrommap},
 	},
-	/pgfplots/colorscheme/cel/.style={
-		colormap name={cel},
-		cycle list name={cel},
-		/utils/exec={\setschemecolors},
+	/pgfplots/colorscheme/mako/.style={
+		colormap name={mako},
+		cycle list name={mako},
+		/utils/exec={\setschemecolorsfrommap},
+	},
+	/pgfplots/colorscheme/cividis/.style={
+		colormap name={cividis},
+		cycle list name={cividis},
+		/utils/exec={\setschemecolorsfrommap},
+	},
+	/pgfplots/colorscheme/matplotlib/.style={
+		colormap name={matplotlib},
+		cycle list name={matplotlib},
+		/utils/exec={\setschemecolorsmanually{Mpl1}{Mpl2}{Mpl3}{Mpl4}},
 	},
 }
 

dockerfiles/Dockerfile.alpine

@@ -1,5 +1,4 @@
 FROM alpine:3.19
 
 RUN apk update && apk upgrade
-RUN apk add texlive
-RUN apk add texmf-dist-pictures
+RUN apk add make texlive texmf-dist-pictures

dockerfiles/Dockerfile.archlinux

@@ -3,7 +3,6 @@ FROM archlinux:latest
 RUN pacman-key --init
 RUN pacman-key --populate archlinux
 RUN pacman -Sy archlinux-keyring --noconfirm && pacman -Su --noconfirm
-# RUN pacman-key --refresh-keys
 
 RUN pacman -Syu --noconfirm
-RUN pacman -S perl texlive texlive-binextra texlive-pictures --noconfirm
+RUN pacman -S make perl texlive texlive-binextra texlive-pictures --noconfirm

dockerfiles/Dockerfile.ubuntu

@@ -3,5 +3,4 @@ FROM ubuntu:22.04
 ARG DEBIAN_FRONTEND=noninteractive
 
 RUN apt update -y && apt upgrade -y
-RUN apt install neovim git -y
-RUN apt install texlive latexmk texlive-pictures -y
+RUN apt install make texlive latexmk texlive-pictures -y

examples/colorschemes.tex

@@ -18,7 +18,6 @@
 
 
 \input{common.tex}
-\pgfplotsset{colorscheme/cel}
 
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -26,61 +25,77 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 
+\title{Colorschemes}
+\author{}
+\date{}
+
+
 \begin{document}
 
+\maketitle
+
+\foreach \x in {cel, rocket, viridis, mako, cividis, matplotlib}{
+
+	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+	% Set colorscheme
 
-\foreach \x in {cel, rocket, viridis, mako, cividis}{
 	\pgfplotsset{colorscheme/\x}
 
-	\colorbox{gray!30}{\texttt{colorscheme/\x}}
-	\begin{figure}[H]
-		\centering
+	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+	% Preview colorscheme
 
-		\tikzstyle{colornode} = [draw, inner sep=0pt, minimum width=1cm, minimum height=0.5cm]
-		\pgfplotsset{scaled y ticks=false}
+	\noindent\begin{minipage}{\textwidth}
+		\colorbox{gray!30}{\texttt{colorscheme/\x}}
+		\begin{figure}[H]
+			\centering
 
-		\begin{subfigure}[c]{0.45\textwidth}
-			\begin{tikzpicture}
-				\begin{axis}[
-					domain=0:10,
-					view={0}{90},
-					yticklabel=\empty,xticklabel=\empty,
-					width=\textwidth,
-					height=0.75\textwidth,
-				]
-					\addplot3+[surf]
-						{x + y};
-				\end{axis}
-			\end{tikzpicture}
-		\end{subfigure}%
-		\begin{subfigure}[c]{0.45\textwidth}
-			\begin{tikzpicture}
-				\begin{axis}[
-					domain=0:10,
-					ymin=-1e4,ymax=1,
-					legend pos=south west,
-					yticklabel=\empty,xticklabel=\empty,
-					width=\textwidth,
-					height=0.75\textwidth,
-				]
-					\foreach \i in {1,2,4,8}{
-						\addplot+ [mark=none, line width=1pt]
-							{-\i*exp(x)};
-						%\expandafter\addlegendentry\expandafter{$e^{-\text{\i} x}$}
-						\addlegendentryexpanded{$e^{-\i x}$}
-					}
-				\end{axis}
-			\end{tikzpicture}
-		\end{subfigure}%
-		\begin{subfigure}[c]{0.1\textwidth}
-			\begin{tikzpicture}
-				\node[colornode, fill=scol3]                      (color3) {};
-				\node[colornode, fill=scol2, above=1mm of color3] (color2) {};
-				\node[colornode, fill=scol1, above=1mm of color2] (color1) {};
-				\node[colornode, fill=scol0, above=1mm of color1] (color0) {};
-			\end{tikzpicture}
-		\end{subfigure}%
-	\end{figure}
+			\tikzstyle{colornode} = [draw, inner sep=0pt, minimum width=1cm, minimum height=0.5cm]
+			\pgfplotsset{scaled y ticks=false}
+
+			\begin{subfigure}[c]{0.45\textwidth}
+				\begin{tikzpicture}
+					\begin{axis}[
+						domain=0:10,
+						view={0}{90},
+						yticklabel=\empty,xticklabel=\empty,
+						width=\textwidth,
+						height=0.75\textwidth,
+					]
+						\addplot3+[surf]
+							{x + y};
+					\end{axis}
+				\end{tikzpicture}
+			\end{subfigure}%
+			\begin{subfigure}[c]{0.45\textwidth}
+				\begin{tikzpicture}
+					\begin{axis}[
+						domain=0:10,
+						ymin=-1e4,ymax=1,
+						legend pos=south west,
+						yticklabel=\empty,xticklabel=\empty,
+						width=\textwidth,
+						height=0.75\textwidth,
+					]
+						\foreach \i in {1,2,4,8}{
+							\addplot+ [mark=none, line width=1pt]
+								{-\i*exp(x)};
+							%\expandafter\addlegendentry\expandafter{$e^{-\text{\i} x}$}
+							\addlegendentryexpanded{$e^{-\i x}$}
+						}
+					\end{axis}
+				\end{tikzpicture}
+			\end{subfigure}%
+			\begin{subfigure}[c]{0.1\textwidth}
+				\begin{tikzpicture}
+					\node[colornode, fill=scol3]                      (color3) {};
+					\node[colornode, fill=scol2, above=1mm of color3] (color2) {};
+					\node[colornode, fill=scol1, above=1mm of color2] (color1) {};
+					\node[colornode, fill=scol0, above=1mm of color1] (color0) {};
+				\end{tikzpicture}
+			\end{subfigure}%
+		\end{figure}
+		\vspace{\parskip}
+	\end{minipage}
 }