\input fig4tex.tex % % 1. Definition of characteristic points \figinit{pt} % Vertices of the triangle \figpt 1:(80.5, 120) \figpt 2:(-10, -10) \figpt 3:(130, 20) % and the barycenter \figptbary 5:c.g.[1,2,3 ; 1,1,1] % % 2. Creation of the graphical file \figdrawbegin{} % 1st triangle \figset (color=\Redrgb, fill=yes) \figdrawline[1,2,3,1] % 2nd triangle \figvectC 10(80,0) \figptstra 11=1,2,3/1,10/ \figset (color=\Bluergb, alpha=0.7) \figdrawline[11,12,13,11] % 3rd triangle \figvectC 10(-40,-30) \figptstra 11=11,12,13/1,10/ \figset (color=\ForestGreenrgb, alpha=0.5) \figdrawline[11,12,13,11] \figdrawend % % 3. Writing text on the figure \figvisu{\figBoxA}{Red opaque, blue and green two levels of transparency}{ \figwriten 1:(4) \figwritew 2:(2) \figwritee 3:(2) \figset write(mark=$\bullet$)\figwrites 5:$G$(4) } \centerline{\box\figBoxA} \bye