draw_labels(g) --- add labels to a drawing of g assuming g has already been drawn in a figure window (with draw or cdraw) add labels to the drawing. Note: draw(g); add_labels(g) is tantamount to ldraw(g) If the drawing already has vertex numbers, this might make a mess. An optional second argument gives an offset of the label away from the vertex: draw_labels(g, [dx, dy]) moves the label dx to the right and dy up. Suggested offset: [0.1, -0.1]
0001 function draw_labels(g,offset) 0002 % draw_labels(g) --- add labels to a drawing of g 0003 % assuming g has already been drawn in a figure window (with draw or cdraw) 0004 % add labels to the drawing. 0005 % Note: draw(g); add_labels(g) is tantamount to ldraw(g) 0006 % If the drawing already has vertex numbers, this might make a mess. 0007 % 0008 % An optional second argument gives an offset of the label away from the 0009 % vertex: draw_labels(g, [dx, dy]) moves the label dx to the right and dy 0010 % up. Suggested offset: [0.1, -0.1] 0011 0012 if (~is_labeled(g)) 0013 label(g) 0014 end 0015 0016 if nargin == 1 0017 offset = [0 0]; 0018 end 0019 0020 xy = getxy(g); 0021 n = nv(g); 0022 0023 for v=1:n 0024 x = xy(v,1) + offset(1); 0025 y = xy(v,2) + offset(2); 0026 text(x,y,get_label(g,v)); 0027 end