Imagemap | Plotting a
Workspace | Below and Beside |
Colours | "Be Good"
Button (Set Preferences) | Image, Contour and
Surface | Ranges | Zoom |
Cursor | Printing
The 'Display Workspace Area'
showing a combined surface and contour plot
Imagemap - Click on any point to go to the relevant
paragraph.
- Plotting a Workspace
By default the number of the last workspace that was modified appears in
the Plot W# button. You can decrease or increase this number
by pressing the "<-" or "->" buttons, respectively.
When the button is pressed a plot is made according to the setting of the
other buttons.
- Below and Beside
By default the small plot-window (shown above) will be used for graphics,
this is the Below setting. If Beside is selected
plots will appear in a new window which can be rescaled and scrolled, each
new plot (made by pressing Plot W# again) makes a new window which
enables plots to be compared easily and stored as icons if desired. The
Beside window also contains options for printing,
changing colours and annotation (which have their own help files).
- Colours
Colours can be changed by pressing the Load new Colors button
on the right of the main LAMP interface or the Edit menu_bar item
(and also through the Beside
window described above). This brings up the "XLOADCT" utility which
changes the colours of all plots interactively.
Be careful not to plot black on black. If you experience problems
type loadct,27 in the formula-entry
window (or select Eos B in "XLoadCT"), this colour
scheme will display most types of bidimensional data and also gives a white
background to plots.
- "Be Good" or "Options->Plot..." Button
This button brings up a set preferences window, which allows you to
change the titles (displayed on plots and printouts), default printer
and various plot options, such as plotting surfaces with shading from a
light source (default setting) or vectors which can give a multi-plot
effect.
- Image, Contour and Surface
Any combination of these display styles can be selected (and diplayed by
pressing Plot W# again) the Z rotation angle for surface plots is given in
the box next to the surface button. This can be modified as desired then plot again or
use the right-button of the mouse to dynamicaly choose an angle; the view angle (X rotation)
is set in the Plot Options menu.
Remember that contour plots of noisy data can take a long time to generate
(particularly with a log scale); Image is usually very fast.
- Ranges
Once the "Range etc.." button has been pressed the
X, Y range and W lim buttons appear
(shown above). If a button is deselected the full range
will be taken, otherwise the desired range can be entered into the windows
beside the buttons. There is also a W log button to display
the intensities logarithmicaly (revealing small features).
N.B. If you change an X-scale from channels to
energy (t2e) you may get a shock if you have selected an X-range based
on channels! There is also a button to select a Regular Grid
after converting to energy ie. to give a linear scale in energy rather than
channels.
- Zoom
To zoom in on a region of a plot press the left mouse-button and drag out a
rectangle enclosing the area of interest. When you release the mouse-button
the zoomed area will be plotted. Unzoom by pressing Plot W#, or
Replot in the Beside window.
Data in the zoomed area can be saved into a workspace (eg. w4) by entering
trap,w4
in the formula-entry
window.
- Cursor
Press the left mouse-button with the cursor-arrow in the Below plot
window and the values of X, Y, and I (Intensity,W) will
appear above the plot. Obviously the cursor cannot
work on 3D surface plots.
Note: For simple x,y plots (eg. single spectra) the X and Y
values can be displayed on the plot using the left and middle
mouse-buttons respectively.
Press the right mouse-button to have access to your log-book. The image as other
features should be included in this log-book (Html) which can be transformed in PDF file
at the end of the experiment or analyses using your browser.
- Printing
Normally the correct printing device will be set so that you simply press
the Print Below button to obtain a hard-copy. If no device is
set LAMP will make a postscript file in your current path. The
printing device is set in Plot Options. Also the Beside
plot can be printed if the printer is set in Plot Options (Be good) otherwise just a
postscript file is made.
See Graphics on
Common Workspace Fuctions page for direct methods of plotting data and
setting plot ranges using the formula-entry window.