International Atomic Energy Agency
Wagramer Strasse 5, P.O.Box 100, A-1400 Vienna, Austria
Tel:(+43 1) 2600-21714; Fax:(+43 1) 26007
| Created: | by VZ, 11/1998 |
| Modified: |
by PO, 05/1999 by VZ, 06/1999 by VZ, 10/1999 |
ZVView is a multi-platform software designed for nuclear reactions data evaluators to perform efficient interactive visual analysis of cross section data retrieved from EXFOR and ENDF libraries. The main function of ZVView is plotting and inter comparison of data, including variety of options for looking into numerous details of graphical, numerical and bibliographic information involved, along with a possibility to analyse results of own evaluation. ZVView allows user to change plotting attributes, logarithmic and linear scales, zooming, split plot to sub-windows, smoothing by least square method, choose authors to be plotted and scan their points, changing language on the fly, saving picture in Postscript and PCX formats, etc.
| OS | Processor | Executable | Size | Graphics | Requirements |
| Open VMS | DEC-Alpha | zvv90a.exe | 512.Kb | X-windows | VMS-7.1 |
| DECUNIX | DEC-Alpha | zvv88u.exe | 472.Kb | X-windows | |
| AIX-4.2 | RS6000 | zvv88r.exe | 719.Kb | X-windows | |
| Linix | Intel | zvv90l.exe | 796.Kb | X-windows | |
| MS-DOS | Intel | zvv88d.exe | 125.Kb | EGA VGA SVGA |
MS-DOS 3.3 and higher, MS-Mouse driver for modes higher than 640*480, ~500 Kb RAM available for EXE programs (depends on data) |
| W-3.1/9x/NT | Intel | zvv88w.exe | 263.Kb | any | 16-bit |
| W-9x/NT | Intel | zvv90nt.exe | 260.Kb | any | 32-bit |
..$ zvv:==$sa1:[path]zvv89a.exeTo run Zvview use symbol ZVV in Unix style (see Example 1.)
Description of Type: zvd
Content Type (MIME): images/zvd
Default Extension: zvd
Action: open
--> Options
--> General Preferences
--> Helpers
--> New
--> Set up:
Description: ZVD
Type: images/zvd
Suffix: zvd
[check] Application: zvv %s
--> Edit
--> Preferences
--> Navigator
--> Applications
--> New Type
--> Set up:
Description Type: ZVD
File extention: zvd
MIME Type: images/zvd
Application to use: /path/zvview.exe %1
for Unix: Application: /path/zvview.exe %s
Operations with use ZVView as a helper (viewer) have been checked in the following environment: Netscape Navigator and Communicator on VMS, DECUNIX, W-3.1, W-95, W-NT, Linux and Internet Explorer on W-95, W-NT.
ZVView can handle up to 16 different files with data in several formats.
User either supplies specification for files to be preceeded,
or uses files with 'default' extensions.
The format and content of data files can be specified by
option (switch) that follows the file name:
/t - experimental data, computational format '.table' generated by CSISRS*
/r - reference file '.xref' generated by CSISRS*
/d - evaluated data, computational format '.dat' generated by ENDF*
/3 - evaluated data in ENDF format, MF=3 (point wise data)
/u - title (control) file
* On-line Nuclear Data Services on Alpha/VMS
Default extentions (case insensetive):
/t .TABLE, .TAB
/x .XREF, .XRE
/d .DAT
/3 .DAT3, .MT3
/u .TITLE, .TIT, .TXT
Each file can contain several functions, total number of functions
in all files is limited to 16.
Example 1: Open VMS execution command involving 4 data files and 1 text (title) file:
run ZVView:
$ zvv f1.dat/3 f2.dat/d f3.table/t f3.xref/r title.tit
|
Example 2: file 'execute.zvv' consists of 4 lines containing names of 3 data files and 1 text file:
execute.zvv:
f1.dat/3
f2.dat/d
f3.table/t
title.tit
|
run ZVView:
$ zvv
|
Example 3: file 'execute.zvv' consists of 1 line with the name of the composite file 'al27na.zvv', where the file 'al27na.zvv' consists of 6 lines with names of 5 data files and 1 text file
execute.zvv:
@al27na.zvv
|
al27na.zvv:
al27na.table/t
al27na.xref/r
al27na_6.dat/d
al27na_f.dat/d
al27na_r.dat/d
title.tit
|
run ZVView:
$ zvv
|
It should be noted that, as soon as the reference file exists, it must follow the table file. The files f1.dat, f2.dat, f3.table, f3.xref are nuclear data files, the file title.tit is the text file.
The 'title.tit' contains the title (header) of the graphical image created by the ZVView, names of X and Y axis, type of scales, ranges of scales, grids, initial size of window, appearance of buttons and text information about comparing functions. All those parameters are optional and are applied if they appear in the 'title' file. In an example below, the 'title.txt' consists of 20 lines:
title.txt:
tit: {+55}Mn(n,{|g}){+56}Mn
tit2: Experimental data and evaluations
x-scale: log
y-scale: log
x-units: kev
y-units: barn
y-range: 1E-4 1e2
x-range: 1e-4 1e5
x-grid: 0
y-grid: 1
lx-win: 1000
ly-win: 700
buttons: 1
nostat: 1
x: E
x-long: Incident Energy
y: Cross Section
!neq: all
eq: 30942002 = 30982002
eq: 40975 = 41001
neq: 40244
|
ZVView works with functions Yi=Y(Xi), where i is the index of the data point of a given function. Each function represents a set of data points such as experimental cross sections of 1 or several experiments retrieved from the CSISRS database, or a curve of cross sections retrieved from an evaluated data library. The functions are identified by their sequence number f1,f2,...,f64 (16 for versions below 8.9). The sequence numbers are generated by ZVView.
After loading the data, the code identifies functions and defines 'Automatic range' using min and max of X and Y for the whole set of functions. Then, the code generates a window on the screen, creates plots of X and Y axis, followed by plots of each function. Functions are plotted in different style, depending on the type of data. Finally, the code writes explanatory information at the bottom of the screen, draws the MARKER and waits for commands from user.
User can give commands by a keyboard or by a mouse. The code ZVView analyzes the command and executes it.
A lot of commands can be given by using the MARKER that marks a data point of selected (currently scanned) function. The code draws graphical presentation of the MARKER at its actual location. At the bottom of the screen, the code provides numerical information describing the MARKER location (sequence number of the data function, index referring to the marked data point, its absolute position in terms of X and Y values - see Fig.1). In addition, for each function, the code identifies a point (X) located next to the marker and provides information on its index, Y-value and the corresponding X-value.
At the beginning, the MARKER is drawn like a short line under the point referring to the index 1 of the function no 1, that means the point [X(1),Y(1)]. User can move MARKER in different directions by increasing or decreasing an index of the marked point, or by changing the number of the marked function. MARKER location can be used in different ways, for example as a point to define a new range of the displayed window.
Fig.1 explains meaning of terms adopted in present document.
| n | Term | Explanation |
| 1 | Marker |  Pointer to current position of currently scanned function |
| 2 | Marked Point |  Point on currently scanned function reffered by Marker |
| 3 | Marked Function |  Currently scanned function |
| 4 | X-Range |  Currently displayed window on X-axis |
| 5 | Y-Range |  Currently displayed window on Y-axis |
| 6 | Plank |  Bar showing current X, Y ranges on automatic range. |
| 7 | Statistics |  Information to compare functions |
| 8 | Nearest Point |  Point on each function with X nearest to Marker:
Index, Y, X
|
| 9 | Local Maximum |  Maximum Y of each function in current X-Range |
| 10 | Marker Location |  Index, X, Y (Marker) and 
related information (depend of function) |
| 11 | Marker Location |  Short help |
User can interact with ZVView in several ways explained below.
In order to input parameters or make a choice, ZVView uses dialogue systems 'Input' and 'Menu'. 'Input' allows user to input different types of parameters (strings, numbers, alternatives and others). 'Menu' provides choice from a set of alternatives.
| Command (Key) |
Response |
| 'Input' features | |
| Enter ESC |
After user types a string, Enter (VMS: Return) and ESC keys should be
used to accept / reject the string
When user does not change the value of the string where the cursor is located, Enter and ESC keys should be used to accept or reject the whole table |
| Left, Right, BackSpace, Insert, Home, End, Delete | Provide the usual effect |
| Up / Down | Go to previous/next input field |
| F1 | Short help appears |
| F2 | Menu mode for choice among several values of alternative |
'Menu' features |
|
| Enter | Accept the choice |
| ESC | Reject the choice |
The Appendix summarizes commands that can be used by a user. Specified below is a command (a character to by typed, or a key to be pressed at the keyboard) and the response of the ZVView.