point inside polygon

tikz/polygon-is-point-inside/Makefile

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+SOURCE = polygon-is-point-inside
+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:
+	#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

tikz/polygon-is-point-inside/Readme.md

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+Compiled example
+----------------
+![Example](polygon-is-point-inside.png)

tikz/polygon-is-point-inside/polygon-is-point-inside.tex

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+\documentclass[varwidth=true, border=2pt]{standalone}
+\usepackage{tikz}
+\usetikzlibrary{shapes.geometric,positioning,calc,shapes.misc}
+
+\begin{document}
+    \tikzstyle{polygon}=[very thick, fill=orange!25]
+    \tikzstyle{point}=[ultra thick,draw=gray,cross out,inner sep=0pt,minimum width=4pt,minimum height=4pt,]
+    \tikzstyle{line}=[red]
+    \begin{tikzpicture}
+        \coordinate[label=left:$A$] (A) at (1,0);
+        \coordinate[label=right:$B$] (B) at (3,0);
+        \coordinate[label=right:$C$] (C) at (4,2);
+        \coordinate[label=above:$D$] (D) at (3,4);
+        \coordinate[label={[label distance=0.5cm]90:$E$}] (E) at (2,2);
+        \coordinate[label=above:$F$] (F) at (1,4);
+        \coordinate[label=left:$G$] (G) at (0,2);
+
+
+        \draw[polygon] (A) -- (B) -- (C) -- (D) -- (E) -- (F) -- (G) -- cycle;
+
+        \node (P) [point, label={[right]{$P$}}]   at  (2,3.5) {}; 
+
+        \draw[line] (P) -- (A);
+        \draw[line] (P) -- (B);
+        \draw[line] (P) -- (C);
+        \draw[line] (P) -- (D);
+        \draw[line] (P) -- (E); 
+        \draw[line] (P) -- (F); 
+        \draw[line] (P) -- (G);
+    \end{tikzpicture}
+\end{document}