### 3.1.2 Global attributes

These attributes are shared by all objets of the same scene

- `title="titlename"` defines the title
- `labels=["xname","yname","zname"]`: names of the x,y,z axis
- `gl_x_axis_name="xname"`, `gl_y_axis_name="yname"`, `gl_z_axis_name=""`: individual definition of the names of the x,y,z axis
- `legend=["xunit","yunit","zunit"]`: units for the x,y,z axis
- `gl_x_axis_unit="xunit"`, `gl_y_axis_unit="yunit"`, `gl_z_axis_unit=""`: individual definition of the units of the x,y,z axis
- `axes=true or false` show or hide axis
- `gl_texture="filename"`: background image
- `gl_x=xmin..xmax`, `gl_y=ymin..ymax`, `gl_z=zmin..zmax`: set the graphic configuration (do not use for interactive scenes)
- `gl_xtick=`, `gl_ytick=`, `gl_ztick=`: set the tick mark for the axis
- `gl_shownames=true or false`: show or hide objects names
- `gl_rotation=[x,y,z]`: defines the rotation axis for the animation rotation of 3-d scenesé
- `gl_quaternion=[x,y,z,t]`: defines the quaternion for the visualization in 3-d scenes (do not use for interactive scenes)
- a few other OpenGL light configuration options are available but not described here.

Examples Input

`legend=["mn","kg"]`

Input

`titre="median_line";triangle(-1-i,1,1+i);median_line(-1-i,1,1+i);median_line(1,-1-i,1+i);median_line(1+i,1,-1-i)`

Input

`labels=["u","v"];plotfunc(u+1,u)`