scf set the current graphic figure (window)

## Syntax

                f = scf()
                f = scf(h)
                f = scf(num)

## Arguments

h

  a handle, the figure handle

num

  a number, the figure_id

f

  the handle of the current figure

## Description

The current figure is the destination of the graphic drawing. The `scf` function allows to change this current figure or to create it if it does not already exist.

`scf(num)` set the figure with `figure_id==num` as the current figure. If it does not already exist it is created.

`scf(h)` set the figure pointed to by the handle `h` as the current figure. If it does not already exist it is created.

`scf()` is equivalent to `scf(max(winsid())+1)` . It may be used to create a new graphic window.

## Examples

    f4=scf(4); //creates figure with id==4 and make it the current one
    f0=scf(0); //creates figure with id==0 and make it the current one
    plot2d() //draw in current figure (id=0)
    scf(f4); // set first created figure as current one
    plot3d() //draw in current figure (id=4)

## See also

- set
- get
- gcf
- clf
- winsid
- graphics_entities