# XOP_PODS

The main XOP window has some PODS or TABS that can be used for different purposes

## XOP Logo

Just the logo

## XOP Tree

Permits a "static" access to XOP applications. Double-click on the application name for starting it.

## XOP PT (Periodic Table)

A periodic table. Double-click on one element to display some x-ray related data.

## XOP Cmd (Command line)

Enter an IDL command, or application name (e.g., xplot). This permits to execute some command and/or to define some data. All data defined here is copied to the "IDL main level" and for further access in some applications (like Xplot "paste", or for inputing data in the iTools). For more sophisticating programming, use XOP_MACRO.

## XOP CD (Current directory)

This helps to define the XOP Current Directory. It is very convenient to define a current directory (with write permission) , because:

- All temporary files written by IDL will sit there

- All applications will open, by default, at this directory.