source: trunk/doc/expgui3.html @ 333

Last change on this file since 333 was 333, checked in by toby, 11 years ago

# on 2000/10/18 00:11:17, toby did:
fixup formatting

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  • Property rcs:date set to 2000/10/18 00:11:17
  • Property rcs:lines set to +2 -2
  • Property rcs:rev set to 1.6
  • Property rcs:state set to Exp
  • Property svn:keywords set to Author Date Revision Id
File size: 5.4 KB
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1<html>
2<head>
3   <META NAME="Author" CONTENT="Brian H. Toby">
4   <title>EXPGUI</title>
5</head>
6<BODY BGCOLOR="#FFFFFF">
7
8<A HREF=http://www.ncnr.nist.gov>
9<IMG SRC="http://www.ncnr.nist.gov/images/ncnrtrans.gif" 
10alt="Link to NIST Center for Neutron Research home page"
11ALIGN=RIGHT></A>
12<A HREF=http://www.nist.gov>
13<IMG SRC="http://www.ncnr.nist.gov/images/webidblue_2lineright.gif" 
14alt="Link to National Institute of Standards & Technology home page"
15ALIGN=LEFT></A>
16<CENTER>
17<A Href="http://www.ncnr.nist.gov/programs/crystallography/software/tclpkgs.html">
18<IMG SRC="tcltklogo100.gif" 
19alt="Link to Tcl/Tk information">
20</CENTER></A>
21<br clear=all><hr>
22
23<TABLE BORDER BGCOLOR="#FFFF40" ALIGN=RIGHT>
24<TR><TH><A  Href="expgui.html">EXPGUI top</A> 
25</TH><TH><A Href="expgui4.html">Next page</A>
26</TH><TH><A Href="expgui2.html">Previous page</A>
27</TH></TR></TABLE><BR CLEAR=ALL>
28
29<center><h1>
30EXPGUI, part 3
31</h1></center>
32<h3>A.3 Histogram pane</h3> 
33<DL><DL>
34The histogram pane is used to edit background
35and diffractometer constants for a histogram, as well as
36set damping and refinement flags for these parameters.
37<P>
38If
39<A href="expgui.html#multiplehistogram">
40"Multiple Histogram Selection" mode</A> is set to "All",
41this pane is disabled. For other settings of this mode,
42groups of histograms can be selected and modified
43collectively.
44<P>
45If the EXPTOOL program
46<A href="expgui.html#installation">(see the installation instructions)</A>
47is installed, a button for adding histograms will
48appear on the bottom right on this pane, as seen below. If the
49program is not properly installed, no errors occur, but the button
50does not appear.
51<P>
52Note that the order that histograms appear in this
53pane is determined by the <a href="expguic.html#sorthist">"Sort histograms by"</a> option in
54the Options Menu.
55</DL></DL>
56<img SRC="3.gif" align=TEXTTOP alt="EXPGUI Screen snapshot">
57<P>
58<DL><DL>
59If there is more than one phase present in the refinement,
60an extra box appears at the top of the pane to allow phase flags
61to be selected. This allows a phase to be used in some histograms
62but not in others. It also offers a simple way to effectively "delete" a
63phase by removing it from all histograms. Be sure to rerun POWPREF after
64changing the phase flags.
65</DL></DL>
66<img SRC="3a.gif" align=TEXTTOP alt="EXPGUI Screen snapshot">
67<br clear=all>
68<P>
69<DL><DL>
70The pane appears slightly differently when
71<A href="expgui.html#multiplehistogram">
72"Multiple Histogram Selection" mode</A> is set to a single histogram type.
73In this case diffractometer constants are edited in separate windows (see
74<a href="#EditParm">Global Editing of Parameters</a>, below).
75<P>
76</DL></DL>
77<img SRC="3c.gif" align=TEXTTOP alt="EXPGUI Screen snapshot">
78<br clear=all>
79
80<a name="EditBackground"></a>
81<h3>A.3.1 Editing background</h3> 
82<DL><DL>
83<img SRC="3b.gif" align=LEFT alt="EXPGUI Screen snapshot">
84When the button labeled "Edit Background", (or "Globally Edit Background"
85or in the case where <A href="expgui.html#multiplehistogram">
86"Multiple Histogram Selection" mode</A> is set to a single histogram type)
87is pressed, a window such as the one
88to the left is displayed. In the case where background coefficients
89are being edited for more than one histogram
90(<A href="expgui.html#multiplehistogram">
91"Multiple Histogram Selection" mode</A> must be
92set to a single histogram type) the entry boxes will appear blank
93and only those terms that are filled in will be changed when the "Set"
94button is pressed.
95This option is mostly useful when changing the background function or the
96number of terms for several histograms at a single time.
97Note that no changes are made until the "Set"
98button is pressed.
99<br clear=all>
100</DL></DL>
101
102<a name="EditParm"></a>
103<h3>A.3.2 Global Editing of Parameters</h3> 
104<DL><DL>
105<img SRC="3d.gif" align=LEFT alt="EXPGUI Screen snapshot">
106The dialog to the left shows how
107a difractometer constant can be
108edited for more than one histogram
109(<A href="expgui.html#multiplehistogram">
110"Multiple Histogram Selection" mode</A> must be
111set to a single histogram type).
112This menu is also used to globally set the
113<A href="expgui4.html">Phase Fraction</A>.
114<br clear=all>
115
116</DL></DL>
117
118<a name="AddHist"></a>
119<h3>A.3.3 Entering New Diffractograms</h3> 
120<DL><DL>
121<img SRC="3e.gif" align=LEFT alt="EXPGUI Screen snapshot">
122Pressing the "Add New Histogram" button creates the dialog
123to the left. A data file and an instrument parameter file are
124selected using the "Select File" buttons. If more than
125one bank is defined, the bank must be selected and the maximum
126data value to be considered, must be entered. Note that the
127units for the maximum (minimum for d-spaces) must also be selected.
128To view a data file, to see the extent of the data, the "Run RAWPLOT"
129button may be used. Note that EXPGUI cannot communicate the names
130of the data and instrument parameter files to RAWPLOT, so they must be
131reentered.
132<P>
133<a name="AddHistErr"></a>
134If errors are detected in the input, an error message is displayed detailing where
135the errors are found. Otherwise, the EXPTOOL program is run.
136
137 and the output is displayed
138</DL></DL>
139<hr>
140<TABLE BORDER BGCOLOR="#FFFF40" ALIGN=RIGHT>
141<TR><TH><A  Href="expgui.html">EXPGUI top</A> 
142</TH><TH><A Href="expgui4.html">Next page</A>
143</TH><TH><A Href="expgui2.html">Previous page</A>
144</TH></TR></TABLE>
145
146<a href="http://www.ncnr.nist.gov/staff/toby/">Brian Toby</a> (<a href="mailto:brian.toby@nist.gov">Brian.Toby@NIST.GOV</a>)
147<br>
148$Revision: 333 $ $Date: 2009-12-04 23:04:18 +0000 (Fri, 04 Dec 2009) $
149</body>
150</html>
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