
cairo_set_line_width (cr, 0.12); cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); /* default */ cairo_move_to (cr, 0.25, 0.2); cairo_line_to (cr, 0.25, 0.8); cairo_stroke (cr); cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); cairo_move_to (cr, 0.5, 0.2); cairo_line_to (cr, 0.5, 0.8); cairo_stroke (cr); cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); cairo_move_to (cr, 0.75, 0.2); cairo_line_to (cr, 0.75, 0.8); cairo_stroke (cr); /* draw helping lines */ cairo_set_rgb_color (cr, 1,0.2,0.2); cairo_set_line_width (cr, 0.01); cairo_move_to (cr, 0.25, 0.2); cairo_line_to (cr, 0.25, 0.8); cairo_move_to (cr, 0.5, 0.2); cairo_line_to (cr, 0.5, 0.8); cairo_move_to (cr, 0.75, 0.2); cairo_line_to (cr, 0.75, 0.8); cairo_stroke (cr);