sda reSets the Default Axes to its factory values

## Syntax

                sda()

## Description

This routine resets the properties of the axes's model to their factory values.

`sda()` is equivalent to `set(gda(),"default_values",1)`.

## Examples

    x=[0:0.1:2*%pi]';
    f=get("default_figure"); // get the handle of the model figure
    a=get("default_axes");   // get the handle of the model axes
                             // setting its' properties
    f.figure_size=[1200 900];
    f.figure_position=[0 0];
    a.background=4;
    a.box="off";
    a.foreground=5;
    a.labels_font_color=25;
    a.labels_font_size=4;
    a.sub_tics=[7 3];
    a.x_location="middle";
    a.y_location="middle";
    a.tight_limits="on";
    a.thickness=2;
    a.grid=[-1 24];
    subplot(221);
    plot2d(x-2,sin(x))
    subplot(222);
    plot2d(x-6,[2*cos(x)+.7 2*cos(x)+.9 cos(2*x) .2+sin(3*x)],[-1,-2,-3 -4])
    sda() // return to the default values of the axes' model
    subplot(223);
    plot2d(x-2,sin(x))
    subplot(224);
    plot2d(x-6,[2*cos(x)+.7 2*cos(x)+.9 cos(2*x) .2+sin(3*x)],[-1,-2,-3 -4])
    close(0)
    plot2d(x-2,sin(x))

## See also

- sdf
- gda
- gdf
- set
- graphics_entities