Zoom

The sub-menu  Zoom is shown on the left. It includes two options:

 

 

Zoom In 

The Zoom In  option allows to have the zoom of a selected area of the plot. The top and bottom menus shown in Fig. 2.1 become available

 

 

 

Fig. 2.1

 

 

The top menu displays the angular limits (Two th. min. and max) and the maximum count (Count max) of the current plot; these values are used to fit the data in the window. Cross the Aut. Scale (automatic scale) field to automatically adapt the vertical scale to the maximum count of the selected area. To select the area to zoom use the left mouse button; anyway numerical values can be directly introduced in the above fields or obtained by step variations by clicking on the corresponding arrows.

The bottom menu includes 3 buttons:

 

Zoom Out:       to come back to the whole pattern plot

OK:                  to confirm the selection (see Fig. 2.2). A horizontal scroll-bar allows to move to neighbouring regions; data are not automatically  re-scaled.

Cancel:             to come back to the previous plot without any change.

 

 

 Fig. 2.2

 

 

Zoom Out 

The Zoom Out option allows to come back to the whole pattern