Enable text based alternatives for graph display and drawing entry

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[Graphs generated by this script: setBorder(60,30,60,30);initPicture(0,5,0,7.5); fontsize=14;fontstyle='none';marker=null;line([0,0],[2.5,0]);line([0,2.5],[0,5]);line([0,2.5],[2.5,2.5]);line([0,7.5],[2.5,7.5]);line([2.5,0],[5,0]);line([2.5,2.5],[2.5,5]);line([2.5,5],[2.5,7.5]);line([2.5,7.5],[5,7.5]);line([5,0],[5,2.5]);line([5,2.5],[5,5]);fontbackground='white';dot([0,0]);dot([0,2.5]);dot([0,5]);dot([0,7.5]);dot([2.5,0]);dot([2.5,2.5]);dot([2.5,5]);dot([2.5,7.5]);dot([5,0]);dot([5,2.5]);dot([5,5]);dot([5,7.5]);]

Is this graph connected?

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