added resource allocation graph

.gitignore

@@ -25,6 +25,7 @@
 *.maf
 *.mtc
 *.mtc0
+*.svg
 
 *.pdf
 

tikz/resource-allocation-graph/Makefile

@@ -0,0 +1,35 @@
+SOURCE = resource-allocation-graph
+DELAY = 80
+DENSITY = 300
+WIDTH = 512
+
+make:
+	pdflatex $(SOURCE).tex -output-format=pdf
+	make clean
+
+clean:
+	rm -rf  $(TARGET) *.class *.html *.log *.aux *.data *.gnuplot
+
+gif:
+	pdfcrop $(SOURCE).pdf
+	convert -verbose -delay $(DELAY) -loop 0 -density $(DENSITY) $(SOURCE)-crop.pdf $(SOURCE).gif
+	make clean
+
+png:
+	make
+	make svg
+	inkscape $(SOURCE).svg -w $(WIDTH) --export-png=$(SOURCE).png
+
+transparentGif:
+	convert $(SOURCE).pdf -transparent white result.gif
+	make clean
+
+svg:
+	make
+	#inkscape $(SOURCE).pdf --export-plain-svg=$(SOURCE).svg
+	pdf2svg $(SOURCE).pdf $(SOURCE).svg
+	# Necessary, as pdf2svg does not always create valid svgs:
+	inkscape $(SOURCE).svg --export-plain-svg=$(SOURCE).svg
+	rsvg-convert -a -w $(WIDTH) -f svg $(SOURCE).svg -o $(SOURCE)2.svg
+	inkscape $(SOURCE)2.svg --export-plain-svg=$(SOURCE).svg
+	rm $(SOURCE)2.svg

tikz/resource-allocation-graph/resource-allocation-graph.tex

@@ -0,0 +1,28 @@
+\documentclass{article}
+\usepackage[pdftex,active,tightpage]{preview}
+\setlength\PreviewBorder{2mm}
+
+\usepackage{tikz}
+\usetikzlibrary{arrows,positioning, calc,lindenmayersystems,decorations.pathmorphing,intersections} 
+\tikzstyle{resource}= [draw,minimum size=16pt,inner sep=0pt]
+\tikzstyle{process} = [draw,minimum size=16pt,inner sep=0pt,circle]
+\tikzstyle{allocation} = [->,thick,arrows={-latex}]
+
+\begin{document}
+\begin{preview}
+\begin{tikzpicture}[scale=2]
+    \node (r1)[resource] at (0,2) {$R_1$};
+    \node (r2)[resource] at (1,2) {$R_2$};
+    \node (r3)[resource] at (2,2) {$R_3$};
+    \node (p1)[process]  at (0,1) {$P_1$};
+    \node (p2)[process]  at (1,1) {$P_2$};
+    \node (p3)[process]  at (2,1) {$P_3$};
+    \node (r4)[resource] at (0,0) {$R_4$};
+
+    \draw[allocation] (r1) -- (p1);
+    \draw[allocation] (r2) -- (p2);
+    \draw[allocation] (r3) -- (p2);
+    \draw[allocation] (p3) -- (r3);
+\end{tikzpicture}
+\end{preview}
+\end{document}