Edit Pointlist

The pointlist is a list of scan positions which can be stored in the data file along with a descriptive string. For instance, if you have a specific feature in the upper-left area of the scan, you can click there and save that position along with the string ``Feature ABC''. Later, you can display move the microscope back to that position, or just move the cursor back to that specific position. This is particularly useful for large overview scans, where you might find several interesting areas of which you want to record stacks. After taking the stack of the one area, you can have the microscope move to the second area and take a stack from there.

The STXM 5 data file format is prepared to hold up to 25 such positions, but the GUI can handle only 15. This is because otherwise the popup window would grow too big.

When you click the menu entry, the pointlist editor window pops up (see Fig. 5.17). Now you can click into the image (or spectrum) and then click the ``Set'' button for a certain pointlist entry, which will store the position. Then enter the description. Later, you can click onto the ``Go To'' button for that entry, and SM_GUI will set the cursor to that position in the image. The cursor crosshair will automatically be turned on. If you really want to move the sample in the microscope to that position, you'll also have to click the button ``Move Scan Devices to Mouse''.

When you save a scan file, the pointlist entries will be saved with it.

Note the following: Moving the sample in the microscope back to a previously marked position will work only if the sample has not been removed from the sample stage in the meantime!

Figure 5.17: The Pointlist Editor