DIP2000
user manual
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The pencil in the bar of coloured buttons harbours the image display and analysis software. A Left-click of the pencil icon will pop up the IP display window. The program can also be called by typing the following command in a winterm window :
% ip_dsp
The IP display window will look as in below. It gives a list of all the "ipf" files in the present directory.
To display new files with the same extension which have been created later, one should put the mouse at the end of the directory line and hit return. With the mouse you can select one of the files. With the arrows and scroll button at the right you can scroll through the list.
Selecting an image will pop up a window with the image.
At the same time it will enlarge the IP display window, to give a few extra options, like Orientation and Color. This is shown below.
To show the information which is stored in the tail of the file, you can press the Info button.
The colour of the window can be selected by hitting the arrow after Colour with the right mouse button. This will give the possibility to select between the following options :
Star which corresponds with White on black
Sun which corresponds with Yellow and red
Sea which corresponds with White on Blue
Forest which corresponds with White on green
Rainbow which corresponds with Green on Orange
Daytime which corresponds with Black on white
The colour slide on the right of the main display window can be used with the right mouse button to change the intensity of the colour scale. The orientation of the image can be changed with the arrow button following the keyword Orientation.
At the bottom of the file a number of parameters are shown which have to do with the zoom window. To zoom use the Left mouse button to select and drag an area in the main window. The area will be highlighted in the main window.
The size of the window can be changed by selecting a magnification ratio,
which is given as
Dot pitch for zooming. Use the Right Mouse
button to select out of a broad range of ratios. Zooming can be done by
pressing the Exec button.
Older versions of the software usednot to refresh the display window. If the zoom window overlaps the main window and you would like to refresh the entire main window, you should press the middle mouse button, while in the main window. This only works when you are in the Main control level, as indicated by the top left arrow in the IP display window. If you have a new version of the software and you still do not get refresh, you should edit the file /var/X11/xdm/Xservers and delete the -bs option.
In the zoom window many things can be viewed or analysed. The options one can choose from are listed if you right click the arrow next to Main control. Then the following options appear :
Fiducial point to set fiducial points for reference.
d-value etc. To determine the d-value of reflections
Numeric dump To look at the numeric values of pixels
Contour map To draw a contour map of the intensities.
Net plot To make a 3D representation of a (number of) spot(s).
Profile To profile an arbitrary line on your image
File output To write an image file of the zoomed region.
Full screen. To fill the display with the zoomed region.
These options will be covered in the following paragraphs.
This level is no longer necessary for normal use. It will put the direct
beam position in the middle of the plate. Only for use with theta offset,
it may be necessary to use this.
The d-value mode allows you to see the resolution or theta value at a particular pixel position in the zoom window. These can be seen by clicking a certain position in the zoom window with the left mouse button.
The main window will be updated to show these values and will look something like the following:
The numeric dump option allows you to look at the numbers in the file of an image. In the default setting a 25x25 pixel window will be displayed in the bottom right corner and the corresponding values in the number window on the top.
After selection of an area a window like the following will appear :
The entire area is not displayed in the number box, but only part of it. You can pan through the area by scrolling on the bottom and on the left. The pixel which is picked in the number window is displayed with an orange dot. This is normally not visible with the Sun or Rainbow setting of the colour.
The contour map option works. Activating it, pops up the following window:
Clicking a part of the zoom window will generate a contour plot of the image:
With the net plot option one can make a 3-D plot of an area selected by the mouse button in the zoom window, which has the number of pixels and pixel spacing as specified in the net plot window panel as shown in the following figure.
The resulting window could look as follows :
There are now four viewing directions of the plot, which can be selected by clicking the arrow after View direction.
The profile option allows you to draw an intensity profile along a line in the zoom window.
The buttons on the top of the graph allow you too select parts of the graph, zoom in, display numbers and coordinates of the plot etc. etc. Click help to know more about this program.
The file output option allows you to write a small image file of the area in the zoom window. This file can be displayed with the display software as well.
The full screen option blows up the zoom window. You can get out by clicking the mouse in the blown up window.
For evaluation/processing of images the user is referred to the respective manuals of the data processing programs.
For the denzo program you can invoke the files site, exp and auto, which
should contain parameters relevant to the experiment. See the Miscellaneous
files section for example files.