Command D2
| GSI | Biophysics | display commands |

D2

anl
evt
/
dim()
window()
bins()
project()
lin
log
sqrt
calib()
xnocal
ynocal
isometric
contour
cluster
area
scatter
zscale()
format()
colours(5,6,4,8,3,7,1)
widths(1)
linetypes(1)
ncuts(7)
cuts()
debug

Purpose

Display (parts of) analyzer spectra with two or more dimensions in a two-dimensional representation.

Parameters

anl

Name or number of an analyzer with two or more dimensions. If omitted, the last specified analyzer is assumed.

evt

Qualifier name or number. If omitted, the last specified qualifier is assumed.

dim(dimlist)

Analyzer dimensions to be displayed (onto which will be projected). Replacable default: dimlist=1,2.

window(w)

project(w)

Spectrum segment to be displayed, specified by A limit omitted in the number list is replaced by the actual value (or the analyzer limit, initially). An asterisk (*) means the corresponding analyzer limit. Lower limits smaller or upper limits larger than the corresponding analyzer limit are reset to the latter. The limits are not modified to match with the bin borders.
If a reference to a calibration 'c' exists for a displayed dimension (see key word CALIB(c) or command AMOD), the number list for this dimension refers to 'c' (and not to the analyzer channel numbers).
If the analyzer has more than two dimensions, and if a display window or condition number is specified, only the limits of the actually displayed dimension are taken from 'w'. The display window or condition limits of the not displayed dimension(s) are used as projection limits.

bins(binlist)

List of display bin sizes. Independent of the display limits, bins are added always starting with the first analyzer bins. Default: the analyzer bin sizes.

lin

Linear data axis.

log

Logarithmic data axis.

sqrt

Square root data axis.

calib(c)

If once given, the values for the x-axis and the x-axis description are taken from the calibration 'c'. 'c' consists of two names 'cname.cqual'. If 'cqual' is omitted, 'CAL' is assumed. A reference between the calibration and the corresponding analyzer dimension is created and remains valid for subsequent D2 commands.
Not yet implemented

xnocal

ynocal

The reference to the calibration 'c' - if existing - will be ignored for the current command.

isometric

Isometeric plot. Not yet implemented.

contour

Contour plot.

cluster

Cluster plot with differently sized clusters.

area

Area filling cluster plot. Useful only in colours.

scatter

Scatter plot.
Replaceable default is cluster.

format(r)

Ratio of width and height of the spectrum, defined by the length of the corresponding axes. Allowed values are in the range between r = 0.4 and r = 1.7. If r > 1.4, there is no space for informations on display windows and points right of the spectrum display. Replaceable default is r = 1.4.

colours(clist)

List of colour indices. Replaceable default is clist = "5,6,4,8,3,7,1".

widths(wlist)

List of width indices. Replaceable default is wlist = 1.

linetypes(llist)

List of line type indices. Replaceable default is l = 1.
With the keywords colours, widths, linetypes a logical number between 1 and 10 is expected, which refers to the attributes look-up table. See the command DATTR for the graphic attributes assigned to these numbers.

zscale(zlim)

Pair of values specifying the range of data values to be displayed. A "*" denotes a limit taken from the spectrum itself, an omitted value defaults to the last used limit.

ncuts()

Number of cuts in z-direction to be displayed. Effective only if no cuts() are specified.

cuts()

List of cut values for contour or cluster plot.

debug

Debug switch. Lots of output !

Function

Remarks

Examples


Analyzer segment, projections
D2  3  2 / ZSCALE(1,*) LOG CLU
Display analyzer no. 3 with qualifier no. 2 within the analyzer limits (startup default). If the analyzer has more than two dimensions, the complete analyzer range of the third (and possibly higher) dimension(s) is projected onto the x-y-plane. Data from 1 up to the maximum spectrum count are considered. A cluster representation with logarithmic spacing is plotted.
| GSI | Biophysics | display commands |
Last updated: M.Kraemer@gsi.de, 3-Apr-2000