Eval14 Commands

Crystal Description
Experiment Description
Program Control
Browse
Dirax related commands
Fibre specific commands
Graphics related commands
Miscellaneous
Output Control
Alphabetical list of commands

command	xtal.evc	default	description
Crystal Description
animo	yes	0.0	set anisotropic mosaicity
anivec	yes	0 0 1	set anisotropic vector
block	yes	sphere	block shaped crystal
isomo	yes	isomo	disable anisotropic mosaicity
mica	yes	0.0	set the range of mica
micascale	yes	-1.0	mica contribution depends on angle between micavec and reflection
micavec	yes	0 0 1	set mica vector
mosaic	yes	0.3	set mosaicity
nomica	yes	nomica	disable mica expansion
orient rr	yes	0.0 0.0 0.0	set crystal orientation
rx		0.0	set crystal orientation
ry		0.0	set crystal orientation
rz	yes	0.0	set crystal orientation
sphere	yes	sphere	sphere sphaped crystal
xa	yes	0.3	set crystal dimension
xb	yes	0.3	set crystal dimension
xc	yes	0.3	set crystal dimension
Experiment Description
collimator	yes	1.0	set collimator diameter
dxfactor	yes	1.0	set distance factor
focus	yes	220 0.4 0.4	set focus parameters (distance, hor, ver)
focrot	yes	off	rotate focus points 45 degrees
Program Control
autoexpand	yes	noautoexpand	expand margin and depth using removed pixels
autoexpand2	yes	noautoexpand2	expand margin using I/sigma
autoexpand3	yes	noautoexpand3	expand depth using I/sigma
autoexpand4	yes	noautoexpand4	expand mica using I/sigma
badbg	yes	1.0	set maximum background quality
badbgallowedmis	yes	4	set allowed number of bpb profiles
checkbadpos		on	set check on bad positions
chi	yes	65.0	set maximum chi value
expand	yes	1.0 1.5	set contour expansion
isigbadbg	yes	2.5	set minimum I/sigma for bad background
isigshift	yes	2.5	set minimum I/sigma for shift
negative		on	allow/forbid negative values in the reflectionbox
neighbours		on	allow neighbour and alien reflections
pqobserved	yes	20.0	set pq (peak quality) observed value
pqstrong		80.0	set pq (peak qualify) strong value
removesigma remove	yes	3.0	sets background plane remove factor
shift	yes	10 3 3 3	set shift parameters
shiftinit	yes	0 0 0	set initial shifts
shiftshare	yes	0.2	allow shifts on overlapping reflections
splitfactor	yes	0.1	set splitfactor for overlapping reflections
splitpqratio	yes	1000.0	set splitpqratio for overlapping reflections
sumfactor	yes	0.7	set sumfactor for overlapping reflections
Browse through boxfiles
file			select boxfile
hkl			search reflection
nextcode		XUIC?BEO	set code for nexterror
nexterror			search for next error
pq			search next strong reflection
'n'			goto reflection 'n'
Dirax related commands
closedirax			close dirax file
d			save reflection in dirax file
opendirax			create dirax file
Fibre specific commands
addhkl			add reflection
fibre	yes	nofibre	activate fibre mode
nofibre	yes	nofibre	deactivate fibre mode
remhkl			remove reflection
Graphics related commands
borderwidth bd		1	set border width
bw		on	set black/white or white/black
clear			clear detector window
clearip			clear ip windows
colnam			define colours
colour		grey	disable grey colours
fix		free	fixed scaling
free		free	free scaling
grey		grey	use grey colours
headersize		12	set headersize
lin		linear	linear scaling
log		linear	logarithmic scaling
padx		1	set window padding
pady		1	set window padding
ps			create hardcopy
ps1			create hardcopy
setcolour			define colours
slices		on	draw slices
window		0.4	set main window size
windowinfo			print window information
windowlog		4	set graphics log level
Miscellaneous
alpha			set wavelength
compress		0	compress/expand frames
help			start webbrowser
imagefilename			show image filename
quit			quit program
save			save parameters
status			show parameters
timeunits			set timescale
x			set all parameters
yfile		yfile	create .y output file
Output Control
atlas			creates cnt file
dump			print part of reflectionbox data
output		full	controls amount of output
ps			create hardcopy
ps1			create hardcopy
showhr			print HorRot data
showhv			print HorVer data
showipx			print pixel attributes
showpx			print reflectionbox data
showrv			print RotVer data

Alphabetical list of commands

addhkl

Add a reflection to the list of overlapping central reflections. Used only for fibre data. See also remhkl.

alpha

Set wavelength
Syntax: alpha alpha1 alpha2 alpharatio
Default: from boxfile
To disable the ratio, enter a negative number.

animo

Syntax: animo f
Default:animo 0.0
Sets anisotropic mosaicity to f. You have to set anivec too. Use a value of 0.0 or the command isomo to disable anisotropic mosaicity.
animo is part of xtal.evc.

anivec

Syntax: anivec h k l
Default:anivec 0 0 1
Sets anisotropic vector to h k l. You have to set animo to a nonzero value to activate the anivec.
anivec is part of xtal.evc

Syntax: atlas
This will create a a cntfile eval14.cnt without contour data with the HorVer integrated data (the top middle picture). The separate programs contour, atlas and view can be used to visualize this file.

autoexpand

Syntax: autoexpand on/off
Default: autoexpand off
Try to find the best expand margin and depth by inspecting bad pixels surrounding the reflection contours.

Evaluate the reflection. If the initial Peak Quality < 50 do not expand
If the number of high background pixels (the blue ones in the bottom row) at the edge of the reflection contour > 5 and the net intensity of this border region is greater than 2 % of the net intensity of the peak, the expandmargin is incremented by one.
If the number of high background pixels at the start and end of the reflection contour > 5 and the net intensity of this border region is greater than 2 % of the net intensity of the peak, the expanddepth is incremented by one.
repeat as long as the margin and/or depth are increasing.

Use autoexpand off to disable the automatic expansion.
See also: autoexpand2 and autoexpand3.
autoexpand is part of xtal.evc

autoexpand2

Syntax: autoexpand2 on/off
Default: autoexpand2 off
Try to find the best expandmargin by evaluating I/sigma.

Evaluate I/Sigma (if < 10 do not expand)
Increment expandmargin.
Evaluate the new intensity.
If I/sigma has increased (I/sig_new > 1.001 * I/sig_old) goto step 2
If I/sigma has decreased, subtract 1 from the expand margin and re-evaluate the intensity.

Use autoexpand2 off to disable the automatic expansion.
See also: autoexpand and autoexpand3.
autoexpand2 is part of xtal.evc

autoexpand3

Syntax: autoexpand3 on/off
Default: autoexpand3 off
Try to find the best expanddepth by evaluating I/sigma.
If the initial Intensity/Sigma > 10 then:

Evaluate I/Sigma (if < 10 do not expand)
Increment expanddepth.
Evaluate the new intensity.
If I/sigma has increased (I/sig_new > 1.001 * I/sig_old) goto step 2
If I/sigma has decreased, subtract 1 from the expand depth and re-evaluate the intensity.

Use autoexpand3 off to disable the automatic expansion.
See also: autoexpand and autoexpand2.
autoexpand3 is part of xtal.evc

autoexpand4

Syntax: autoexpand4 on/off
Default: autoexpand4 off
Only used if mica is set and micascale > 0.0
Calculate the vector product of the central reflection and the micavec. The length of the resulting vector is called g. The contribution of mica to the current reflection is micascale * g * r, with r=micarange.

Evaluate I/Sigma
Augment r with 0.05
Evaluate I/Sigma
If I/sigma has increased (I/sig_new > 1.0001 * I/sig_old) goto step 2
If I/sigma has decreased, subtract 0.05 from the r and re-evaluate the intensity.

If autoexpand4 is set, the other auxoexpand options (autoexpand, autoexpand2 and autoexpand3) will be switched off.
autoexpand4 is part of xtal.evc

badbg

Syntax: badbg f
Default: badbg 1.0
A reflection will be flagged BadBackground if the background quality exceeds the value of f. This is only done if I/sigma >isigbadg

At the end of the reflection integration, 3 intensities are calculated: one in horizontal, one in vertical and one in rotational direction. The Background Quality is defined as:
(I_high-I_low)/I_mean

Intensity: Hor=1139.33 Ver=1150.3 Rot=1170.6 PLane=1159.64 BgQual=0.03

If some of these intensities cannot be calculated (f.e. with edge reflections) the intensity on the screen will be printed between brackets. (use badbgallowedmis the set the allowed number of missing intensities).

Intensity: Hor=159.09 Ver=133.56 (Rot=161.06 1) PLane=151.59 BgQual=0.18

If two of these intensities cannot be calculated (f.e. with edge reflections) the intensity on the screen will be printed between brackets and the Background Quality will be set to -1.0 (signalling a undetermined quality).

Intensity: Hor=1552.64 (Ver=451.04 17) (Rot=0.0 457) PLane=1717.87 BgQual=-1.0

badbg is part of xtal.evc

badbgallowedmis

Syntax: badbgallowedmis n
Default: badbgallowedmis 4
Sets the number of allowed missing one-dimensional profiles in the determination of the background quality.
Related command: badbg.
See also the bpb section in the integration page.
badbgallowedmis is part of xtal.evc

bd

Syntax: bd n
Default: bd 1
Set the border width of subwindows. You may also use borderwidth. See also padx and pady,

block

Syntax: block xa xb xc
Sets the shape and size of the crystal. xa, xb and xc are dimensions in millimeters. You have to specify the orientation of the crystal with orient. A diffracting volume correction will be applied with the diameter of the collimator. To define a sphere shaped crystal use the sphere command.
block is part of xtal.evc

borderwidth

The same command as bd.

bw

Syntax: bw on/off
Default: bw on
Sets black/white or white/black greyscale. If set to on black corresponds to high intensities and white to low intensities. If set to off black corresponds to low intensities and white to high intensities. bw is only active in greycolour mode (after grey).

checkbadpos

Syntax: checkbadpos on/off
Default: checkbadpos off
If set to on, the program checks whether the reflection box and the reflection contour actually are within detector dimensions. Those reflections will be flagged P in the output and are not integrated.

chi

Syntax: chi f
Default:chi 65
Reflections with a chi-value > f are not integrated, and flagged with a X. You may change the value of f, but it is nonsense to raise it above the value specified in the boxfile (there will be no reflections with higher chi's available in the file). f is default set to 65°, but it's value will be overwritten by the value specified in the boxfile and the one in the xtal.evc file. And than you may change it (if you open another boxfile chi will be set to the value in that file).
chi is part of xtal.evc

clear

Syntax: clear
This will clear the detetor window.

clearip

Syntax: clearip
This will clear the individual box windows (the bottom row)

closedirax

Syntax: closedirax
This will close the dirax file. You first have to open the file with opendirax.

collimator

Syntax: collimator f
Default: collimator 1.0
This will set the diameter of the collimator. If the crystal is non-spherical (see block), a diffracting volume correction will be applied to the final intensity.
collimator is part of xtal.evc

colnam

Syntax: colnam s0 s1 s2 .. s8
Sets the colour names for all 9 colour levels. The defaults are: black darkslateblue dodgerblue steelblue green4 tomato orange yellow white. These colours are only used in colour mode (see colour and grey). Use setcolour to change the other colours.

colour

Syntax: colour
Sets colour mode. To switch back to greymode use grey. With colnam you may set the colours. (See also fix, free, lin and log)

compress

Syntax: compress n
Default: compress 0
If n is set to 0 (the default) no compression or decompression is done. If you set n to a nonzero value, all the frames (in the bottom) row will be compressed (or expanded) to n. The compression is done just after reading the data, so all the interpretations are performed on the compressed data. compress was build because of limitations (f.e. number of windows) in the early versions of eval14.
compress is part of xtal.evc

d

Syntax: d
Save current reflection (c-vector and intensity) in diraxfile. You have to call opendirax first. To close the file use the closedirax command.

dump

Syntax: dump
Prints 11x11 pixels of boxdata. You have to enter the central pixel coordinates (horizontal, vertical and frame number). When done, you are asked to do more. As long as you answer yes, you can browse through the reflection box.

dxfactor

Syntax: dxfactor f
Default: dxfactor 1.0
Sets detector distance correction (the value of detdist is multiplied with dxfactor).

For each reflection sin(theta) is calculated for the predicted (theta¹) and final (after shifts) (theta²) positions. For all reflections in the boxfile the values of theta¹ and theta² are summed. After processing of the whole boxfile average shifts are written to the .evc file. The value of theta¹/theta² is written to the evc file ( using the format ! dxfile ....)

If you uncomment this entry in the .evc file, and rerun the whole boxfile again, the value of dxfactor from the previous run will be used.
dxfactor is part of xtal.evc

expand

Syntax: expand margin depth
Default: expand 1.0 1.5
Sets the (extra) contour expansion. margin is in pixels, depth is in frames.
See also autoexpand, autoexpand2 and autoexpand3.
expand is part of xtal.evc

fibre

Syntax: fibre
Activates fibre mode. Use nofibre to deactivate fibre mode.
fibre is part of xtal.evc

file

Syntax: file boxfile
Open a new boxfile. If available, the file boxfile.evc will be read. You may specify a number instead of a filename. The number corresponds to the sorted directory listing of *.shoe* files.

fix

Syntax: fix f
Use a fixed scale to display all the windows. Scaling is done from 0 to f. Use free to allow a free scale (from min to max). (See also lin and log)

focus

Syntax: focus dist width length
Default: focus 220.0 0.4 0.4
Set focus parameters. dist is the distance in mm between focus and crystal. width is the width of the focus in mm. length is the length of the focus in mm. If width/length < 1.0 the focus takeoff angle is calculated as asin(width/length) otherwise the takeoff angle is set to 90°. Use a larger focus distance to set a more parallel primary beam.
focus is part of xtal.evc
Note, if focus parameters have been set (either manually or by using xtal.evc), any focus information from the boxfiles will be ignored.

focrot

Syntax: focrot state
Default: focrot off
If set to on, the extreme points describing the focus will be rotated 45 degrees. You may want to use this setting if your primary beam passes through a focussing mirror.
focrot is part of xtal.evc

free

Syntax: free
Use a free scale (from min to max) to display all the windows. Use fix to set a fixed scale. (See also lin and log)

grey

Syntax: grey
Sets grey colours. To switch to colourmode use colour. Use bw to set black/white or white/black. (See also fix, free, lin and log)

headersize

Syntax: headersize n
Default: headersize 12
Sets the size (in pixels) of the window header (the top line with header and reflection information). Only the size is set, the font is not changed.

help

Syntax: help
Start webbrowser.

hkl

Syntax: hkl h k l
Search the rest of the current boxfile for a reflection with indices h k l. If not found, the boxfile will be reopened.

imagefilename

Syntax: imagefilename
Shows the name of the imagefile in which the current reflection was predicted.

isigbadbg

Syntax: isigbadbg f
Default: isigbadbg 2.5
Only if I/sigma of a reflection > f this reflection can be flagged BadBackground (use badbg to set the bad background threshold).
isigbadbg is part of xtal.evc

isigshift

Syntax: isigshift f
Default: isigshift 2.5
Only if I/sigma of a reflection > f this reflection is allowed to shift.
isigshift is part of xtal.evc

isomo

Syntax: isomo
Disable anisotropic mosaicity. Use animo and anivec to activate anisotropic mosaicity.
isomo is part of xtal.evc

lin

Syntax: lin
Use a linear scale for all the graphics. For a logarithmic scale use log (other scale related commands are colour, grey, fix and free).

log

Syntax: log
Use a logarithmic scale for all the graphics. For a linear scale use lin (other scale related commands are colour, grey, fix and free).

mica

Syntax: mica f
Enables mica and sets the range to f. You also have to specify micavec. To disable mica use nomica or specify f=0.0
mica is part of xtal.evc

micascale

Syntax: micascale f
Default: micascale -1.0
Only used if mica is set.

f < 0.0
Use micavec and micarange to apply the effect of mica.
f > 0.0
Calculate the vector product of the central reflection and the micavec. The length of the resulting vector is called g. The contribution of mica to the current reflection is f * g * micarange.

You may use autoexpand4 to determine the best micascale.
micascale is part of xtal.evc

micavec

Syntax: micavec h k l
Sets the mica vector to h,k,l. You also have to specify mica. To disable mica use nomica.
micavec is part of xtal.evc

mosaic

Syntax: mosaic f
Default: mosaic 0.3
Sets the isotropic mosaicity to f degrees. See also animo and anivec.
mosaic is part of xtal.evc

'n'

Syntax: any number
Reads reflection number 'n'.

negative

Syntax: negative on/off
Default: negative on
Allows negative values in the reflectionboxes if set to on. If set to off negative reflectionbox values will be set to zero.

neighbours

Syntax: neighbours on/off
Default: neighbours on
Controls the prediction of neighbour and alien reflections.

nextcode

Syntax: nextcode string
Default: nextcode XUICBEO
nexterror will skip reflections until the error code is found in string. Possible characters in string are:

X	Chi high
U	bad respons (Uniformity)
I	Incomplete reflection
C	no pixel in peak or background
B	bad Background
E	Edge
O	Overflow
P	bad Position

nexterror

Syntax: nexterror
Skip reflections until the errorcode is found in nextcode.

nofibre

Syntax: nofibre
Runs program in normal (=nonfibre) mode. Use fibre to run in fibre mode.
nofibre is part of xtal.evc

nomica

Syntax: nomica
Disable mica expansion. Use mica and micavec to enable mica expansion.
nomica is part of xtal.evc

opendirax

Syntax: opendirax
Creates a diraxfile (.drx). Use d to add reflections to the file and use closedirax to close the file.

orient

Syntax: orient rz ry rx
Default: orient 0.0 0.0 0.0
Set the orientation of the crystal. Only used if block is set. The orientation is defined as 3 angles (in degrees) in the laboratory system to bring the crystal edges (Xa, Xb and Xc) along X, Y and Z at goniostat position = (0.0, 0.0, 0.0).

rz is the angle around Z to bring Xa in the plane (+X,Z).
ry is the angle around Y to bring Xa along +X.
rx is the angle around X to bring Xc along +Z.

orient is part of xtal.evc

output

Syntax: output full/summary/none
Default: output full
Sets the amount of screen output. output full is used in interactive mode, output summary gives one line of output for each reflection (the default in batch mode).

padx

Syntax: padx n
Default: padx 1
Sets the number of horizontal padding pixels around each window. See also pady and bd.

pady

Syntax: pady n
Default: pady 1
Sets the number of vertical padding pixels around each window. See also padx and bd.

pq

Syntax: pq [f]
Default: pq20
Search reflection with peak quality > f. If you only specify pq, the last vale of f will be used.

pqobserved

Syntax: pqobserved f
Default: pqobserved 20
If reflection is considered observed if Peak Quality > f. See also pqstrong. The colour (see setcolour) of the contour in the detectorwindow depends on the peak quality of the reflection.

pq		colour
< pqobserved	weak	black
> pqstrong	strong	white
else	normal	grey60

The shifts of reflections with PQ > pqobserved are used the determine the average shifts of the whole boxfile.
pqobserved is part of xtal.evc

pqstrong

Syntax: pqstrong f
Default: pqstrong 80
If reflection is considered strong if Peak Quality > f. See also pqobserved. The colour (see setcolour) of the contour in the detectorwindow depends on the peak quality of the reflection.

pq		colour
< pqobserved	weak	black
> pqstrong	strong	white
else	normal	grey60

ps

Syntax: ps rotate filename
Default: ps yes eval14.ps
Creates a postscript file of the whole graphics window. If rotate is set to yes, the picture will be rotated to fit to A4 format. You may specify a different filetype (f.e. eval14.jpg). The plotfile will be created with the import command of the ImageMagick program suite.

ps1

Syntax: ps1 rotate window filename
Creates a postscript file of one of the subwindows.
If rotate is set to yes, the picture will be rotated to fit to A4 format. window is one of:

name	description
det	detector
hr	top row Hor-Rot
hv	top row Hor-Ver
rv	top row Rot-Ver
hr2	second row Hor-Rot
hv2	second row Hor-Ver
rv2	second row Rot-Ver
bg	background statistics
ip1	slice 1
ip2	slice 2
ip'n'	slice 'n'
main	whole window

You may specify a different filetype (f.e. eval14.jpg). The plotfile will be created with the import command of the ImageMagick program suite.

quit

Immediate quit program. Modified parameters will not be saved in xtal.evc (use save to do this).

remhkl

Syntax: remhkl h k l
Removes a reflection from the list of overlapping central reflections. Used only for fibre data. See also addhkl.

remove

Alias for removesigma

removesigma

Syntax: removesigma f
Default: removesigma 3.0
Remove pixels from background plane. See glossary for the use of this parameter.
removesigma is part of xtal.evc

rr

Alias for orient

rx

Syntax: rx f
Sets orient angle for rx.

ry

Syntax: ry f
Sets orient angle for ry.

rz

Syntax: rz f
Sets orient angle for rz.

save

Syntax: save
Saves all parameters in xtal.evc. If mean shifts have been calculated, the user is asked to save these too.

setcolour

Syntax: setcolour objectname colourname
objectnames and default colours are listed in this table:

General
main	darkgoldenrod	background main window
title	white	text top row
bg	grey40	background subwindows
Box Frames
incl	red	within main reflection
neighbour	orange	neighbour
neighbourcontact	yellow	contacting neighbour
neighbourshared	green	overlapping neighbour
alien	magenta	alien
aliencontact	purple1	contacting alien
alienshared	palegreen	overlapping alien
excl	slateblue	excluded from back ground
badresp	green	bad respons
Projection windows
first	brown	initial position
intermediate	cyan	(in debug mode)
last	red	final position
noshifts	green	shifts cancelled
neighbourinit	goldenrod	initial position neighbour
neighbour	orange	final position neighbour
alieninit	violet	initial position alien
alien	magenta	final position alien
Detector Window
detbg	grey80	background detector
centre	grey50	centre cross
midline	white	projection rotation axis
chi	yellow	chi arc
beamstop1	white	beamstop centre
beamstop2	green	beamstop edge
Reflections on detector window
weak	black	weak intensity
normal	grey60	normal intensity
strong	white	strong intensity
overflow	red	overflow
edge	blue	on edge of reflectionbox
bad	green	something wrong
neighbour	orange	neighbour
alien	magenta	alien
BackGround
bgbg	detbg	background BG window
bglow	excl	excluded pixels
bghigh	yellow	pixels in least squares plane
bgextreme	red	outside histogram

shift

Syntax: shift n hor ver rot
Syntax: shift 0
Default: shift 10 3.0 3.0 3.0
Set maximum shift parameters. If one of the parameters is exceeded, the shifts cancel. n is the maximum number of shifts. hor is the maximum allowed horizontal shift in mm, ver is the maximum allowed vertical shift in mm and rot is the maximum allowed rotational shift in degrees.

Horizontal and Vertical shifts will be used to determine the average shift.
If the reflection in the shifted position covers at least two frames, the rotational shift will be used to determine the average rotational shift.
If the reflection in the shifted position lies within one or two frames, the integration will be done at the predicted rotation position.
The final position will correspond to the weighted average of the wavelength
The integration will always be done at the position corresponding to the unweighted average of the wavelength.

See also shiftinit.
shift is part of xtal.evc

shiftinit

Syntax: shiftinit hor ver rot
Default: shiftinit 0 0 0
Sets the initial shifts. The order is:

set initial shifts to zero
read initial shifts from xtal.evc
read initial shifts from boxfile.evc (this will be done every time you select a new boxfile).
user sets initial shifts with shiftinit

See also shift.
shiftinit is part of xtal.evc

shiftshare

Syntax: shiftshare f
Default: shiftshare 0.2
If the sharefraction of two overlapping reflections exceeds f the main reflection is not allowed to shift. (with one exception: if the sharefraction > 0.98 shifts are also allowed).
shiftshare is part of xtal.evc

showhr

Syntax: showhr
Prints the data from the Hor-Rot window. These are the data plotted in the second row of the main window (after removal of neighbours and bad background pixels etcetera. See showhv and showrv.

showhv

Syntax: showhv
Prints the data from the Hor-Ver window. These are the data plotted in the second row of the main window (after removal of neighbours and bad background pixels etcetera. See showhr and showrv.

showipx

Syntax: showipx
Prints the attributes of all pixels and all frames.

0	normal background
1	within main reflection
2	bad background
3	neighbour
4	neighbour contacting main
5	overlap main and neighbour
6	alien
7	alien contacting main
8	overlap main and alien
9	bad respons

The actual contents of the reflectionbox can be printed with showpx.

showpx

Syntax: showpx
Prints the actual contents of the reflectionbox. Use showipx to print the attributes of the pixels. For the projections you can use showhr, showhv and showrv

showrv

Syntax: showrv
Prints the data from the Rot-Ver window. These are the data plotted in the second row of the main window (after removal of neighbours and bad background pixels etcetera. See showhr and showhv.

slices

Syntax: slices on/off
Default: slices on
When set, all the frames in the reflectionbox will be plotted (the bottom row of the main window)

sphere

Syntax: sphere f
Default: sphere 0.3
Sets the shape and size of the crystal. f is the diameter in millimeters of the crystal. There will be no diffracting volume correction applied, even if the diameter of the collimator is smaller (the correction would be the same for all reflections). To define a block shaped crystal use the block command.
sphere is part of xtal.evc

splitfactor

Syntax: splitfactor f
Default: splitfactor 0.1
See the overlap page.
splitfactor is part of xtal.evc

splitpqratio

Syntax: splitpqratio f
Default: splitpqratio 1000
See the overlap page.
splitpqratio is part of xtal.evc

status

Prints the values of some variables.

sumfactor

Syntax: sumfactor f
Default: sumfactor 0.7
See the overlap page.
sumfactor is part of xtal.evc

timeunits

Syntax: timeunits tu
Intensitities and sigma's will be corrected for integration time and scan width. The default procedure is:

  f = ExposureTime/ScanWidth
  sf = tu/f

f	tu	result
> 360	3600	hours/degree
> 10	60	minutes/degree
else	1	seconds/degree

With the timeunits command, (either interactive or via xtal.evc) a fixed value of tu will be used.

Note: the intensities in the .y file are only divided by f. The value of tu is not used. The intensities in the .y files are therefore comparable for different experimentd with different exposure times.
timeunits is part of xtal.evc

window

Syntax: window f
Default: window 0.4
Set the (vertical) size of the main window to the fraction f of the vertical screen size.

windowinfo

Syntax: windowinfo
Prints all available information on the graphics windows.

windowlog

Syntax: windowlog n
Default: windowlog 4
Sets the window log level.

0	Emergency
1	Alert
2	Critical
3	Error
4	Warning
5	Notice
6	Information
7	Debug