source: sasview/docs/pre-sphinx-docs/Graph_help_v0.html @ 8d3d20a

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Last change on this file since 8d3d20a was 54b9ad2, checked in by smk78, 10 years ago

All pre-Sphinx, pre-ReST (ie, html) help files now moved to
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1<html>
2<body>
3
4<h4>Graph Menu</h4>
5<ul>
6<li><a href="#intro">Introduction</a></li>
7<li><a href="#reset">Reset Graph</a></li>
8<li><a href="#hide">Hide/Show/Delete Graph</a></li>
9<li><a href="#info">Data Info</a></li>
10<li><a href="#save">Save plot Image</a></li>
11<li><a href="#savedata">Save Data</a></li>
12<li><a href="#drag">Drag plot</a></li>
13<li><a href="#zoom">Zoom In/Out</a></li>
14<li><a href="#remove">Remove Data</a></li>
15<li><a href="#scale">Change Scale</a></li>
16<li><a href="#linearfit">Linear Fit</a></li>
17<li><a href="#modify">Other Graph Modifications</a></li>
18</ul>
19
20<h5><a name="intro">Introduction</a></h5>
21<p> 
22        Locating the pointer and right-clicking on a data/theory plot will bring a context menu.
23        On the menu, select a menu item.
24</p>
25
26<h5><a name="reset">Reset Graph</a></h5>
27<p>
28        To reset the graph's axis range, right click on the plot and the context menu pops-up.
29        Select <b>Reset Graph</b> and the plot will take its initial range.
30        Also the 'home' icon in tool bar will do the same.
31</p>
32
33<h5><a name="hide">Hide/Show/Delete Graph</a></h5>
34<p>
35        To Hide, click the Hide (bar) button in the tool bar.<br>
36        To Show, select the the 'Show' menuitem in the 'Graph' menu in the menu bar.<br>
37        To Delete, click the 'x' button in the title bar.<br>
38        Note: If a residuals graph (in Fitting) is hidden, it will not show up after computation.
39</p>
40
41<h5><a name="save"> Save Plot Image</a></h5>
42<p>
43        Right click on plot. Context menu will pop-up select save image [file name].A dialog
44        window opens and write a the name of the file to save and click on <b>Save Image.</b>
45</p>
46
47<h5><a name="info"> Data Info</a></h5>
48<p>
49        From the context menu, select 'Data Info' to see the data information dialog panel.
50</p>
51
52<h5><a name="savedata"> Save Data</a></h5>
53<p>
54        From the context menu, select 'Save points as a file' for 1D, or 'Save as a file(DAT)'
55        for 2D. Note that two formats, txt and xml, are available in 1D saving.
56</p>
57
58
59<h5><a name="drag"> Drag Plot</a></h5>
60<p>
61Select the <b>crossed arrows</b>  button on the plot panel <b>toolbar </b> to drag the plot.
62To disable dragging mode, unselect the same button on the toolbar.
63</p>
64
65<h5><a name="remove">Remove data from plot</a></h5>
66<p>
67        Highlight the plot and the context menu appears.Select <b>remove [file name]</b>.
68        The plot selected will disappear.
69</p>
70
71<h5><a name="zoom">Zoom In/Out</a></h5>
72<p>
73 Select the <b>rectangle</b>  button on the plot panel <b>toolbar </b> to zoom in
74 a region of the plot.
75</p>
76<p>
77To disable zoom mode, unselect the same button on the toolbar.
78After zoom in a region, select <b>left arrow</b> or <b>right arrow</b>button on the toolbar
79to set the graph the the previous size.
80If a mouse wheel button is available, <b>zoom in/out</b> by scrolling the mouse wheel
81 ( see 'Key combination' help for details).
82</p>
83<h5><a name="scale">Change Scale</a></h5>
84<p>
85        If the loaded data is a 1-D data.Changing scale or Data Representation will work as
86        followed:<b>right click</b> on the plot window.
87        A context menu pops-up  and select <b>Change Scale</b>. A dialog window titled<b>
88        select the scale of the graph</b> will pop-up then change the <b>x</b>, the <b>y</b>
89        and the <b>view </b> values as wish.
90        The 'view' option includes the axis scale short-cuts such as Linear, Guinier, Cross-sectional (XC)
91        Guinier, and Porod plot scale.  For a proper data set, these axis scales can be used to estimate
92        Rg, Rod diameter, or Backgroud of neutron scattering data respectively (via 'Linear Fit'; see below).
93        <br>
94        For a 2D image, <b>Right click</b> on the image to pop-up the context
95        menu. Select <Toggle linear/Log scale> to switch from linear to log scale. The scale
96        selected is printed on the statusbar.
97       
98</p>
99
100<h5><a name="linearfit">Linear Fit</a></h5>
101<p>
102        Linear fit is to perform a line model fitting keeping the scale of the plot.
103        Highlight data to fit.
104        From the context menu
105        select <b> Linear Fit</b>.A dialog window appears.
106        Change model initial parameters, data limits
107        and hit <b> fit</b> button.
108        New parameters values are displayed and the line with the new
109        parameters is added to the plot.
110        Especially for Guinier, XC Guinier, and Porod plot scale, this 'Linear Fit' will provides Rg,
111        Rod diameter, and background, respectively.  The following figure shows an example for the Guinier scale.
112        </p>
113        <br>
114        <img src="guinier_fit.png" /><br>
115        <br>
116
117<h5><a name="modify">Other Graph Modifications</a></h5>
118<p>
119        Some custom modifications of the symbols, text, axis, etc of the graph are provided
120</p>
121</body>
122</html>
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