Solventx=[45 65 65 45]; Solventy=[97.5 97.5 102.5 102.5]; Waterx=[22.5 37.5 37.5 22.5]; Watery=[102.5 102.5 107.5 107.5]; ThreeWetx=[27.5 47.5 47.5 27.5]; ThreeWety=[83 83 87 87]; Aquax=[7.5 22.5 22.5 7.5]; Aquay=[83 83 87 87]; h=xlabel('VOC emission [g/m^2]','FontSize',20); set(h,'FontName','TimesNewRoman'); h1=ylabel('CO_2 emission','FontSize',20,'FontName','TimesNewRoman'); set(h1,'FontName','TimesNewRoman'); axis([0,70,70,115]) patch(Solventx,Solventy,'red','FaceAlpha',.4) patch(Waterx,Watery,'blue','FaceAlpha',.4) patch(ThreeWetx,ThreeWety,'green','FaceAlpha',.4) patch(Aquax,Aquay,'magenta','FaceAlpha',.4) grid on set(gca,'yticklabel',num2str(''),'FontSize',18,'FontName','TimesNewRoman')