zoom_rect

Scilab Function
Last update : 25/04/2007

zoom_rect - zoom a selection of the current graphic figure

### Calling Sequence

  `zoom_rect()`
  `zoom_rect(rect)`

### Parameters

- `rect` : vector of size 4 `[xmin,ymin,xmax,ymax]` give the rectangle to be zoomed.

### Description

`zoom_rect` is used to zoom a given rectangle of the current graphic figure: the rectangle(s) formed by the intersection of the given rectangle with the axes boxe(s) are zoomed, i.e. the rectangle(s) content are enlarged to fill the axes boxe(s). The selected rectangle for each axes is stored in the `zoom_box` property of associated the axes entity (see `axes_properties` ).

Without argument, the user is required to select the rectangle with the mouse. If specified, the `rect` argument should contain the coordinates ( using the current graphics scale) of two opposite corner of the rectangle.

The `zoom_rect` function corresponds to the `Zoom` menu.

### Examples

        clf()
        x=0:0.01:6*%pi;
        plot2d(x,sin(x^2))
        zoom_rect([16,-1,18,1])
        //more zoom
        zoom_rect([16,0,16.2,1])
        //back to the original
        unzoom()
        // zooming using axes_properties
        a=gca();
        a.zoom_box=[16,0,16.2,1];
        a.zoom_box=[];

        //zooming subplots accordingly
        clf()
        x=0:0.01:6*%pi;
        subplot(211)
        plot2d(x,cos(x))
        subplot(212)
        plot2d(x,cos(2*x))
        rect=[3 -2 7 10]; //a rectangle specified in the current axes (last one) coordinates
        zoom_rect(rect)
        unzoom()
        //set the global underlying axes as current
        f=gcf();set('current_axes',f.children($))
        rect=[0.4 0 0.6 1] //a rectangle specified in ratio of the window size
        zoom_rect(rect)
        rect=[0.4 0.2 0.6 0.8]; //a rectangle specified in ratio of the window size
        zoom_rect(rect)

### See Also

`unzoom` , `axes_properties` ,

### Author

Serge Steer INRIA