Changeset 8ba3715 in sasview

Timestamp:

Sep 10, 2012 9:27:43 AM (12 years ago)

Author:

Jae Cho <jhjcho@…>

Branches:

master, ESS_GUI, ESS_GUI_Docs, ESS_GUI_batch_fitting, ESS_GUI_bumps_abstraction, ESS_GUI_iss1116, ESS_GUI_iss879, ESS_GUI_iss959, ESS_GUI_opencl, ESS_GUI_ordering, ESS_GUI_sync_sascalc, costrafo411, magnetic_scatt, release-4.1.1, release-4.1.2, release-4.2.2, release_4.0.1, ticket-1009, ticket-1094-headless, ticket-1242-2d-resolution, ticket-1243, ticket-1249, ticket885, unittest-saveload

Children:

7f31ba0

Parents:

61dfff9

Message:

added doc about Rg cal with Guinier fit

Location:

sansguiframe/src/sans/guiframe/media

Files:

• Graph_help.html (modified) (2 diffs)
• guinier_fit.png (added)

sansguiframe/src/sans/guiframe/media/Graph_help.html

@@ -88 +88 @@
         select the scale of the graph</b> will pop-up then change the <b>x</b>, the <b>y</b>
         and the <b>view </b> values as wish.
-        If the loaded data  is an image.<b>Right click</b> on the image to pop-up the context
+        The 'view' option includes the axis scale short-cuts such as Linear, Guinier, Cross-sectional (XC)
+        Guinier, and Porod plot scale.  For a proper data set, these axis scales can be used to estimate 
+        Rg, Rod diameter, or Backgroud of neutron scattering data respectively (via 'Linear Fit'; see below).
+        <br>
+        For a 2D image, <b>Right click</b> on the image to pop-up the context
         menu. Select <Toggle linear/Log scale> to switch from linear to log scale. The scale 
         selected is printed on the statusbar.
@@ -104 +108 @@
         New parameters values are displayed and the line with the new 
         parameters is added to the plot.
-</p>
+        Especially for Guinier, XC Guinier, and Porod plot scale, this 'Linear Fit' will provides Rg, 
+        Rod diameter, and background, respectively.  The following figure shows an example for the Guinier scale. 
+        </p>
+        <br>
+        <img src="guinier_fit.png" /><br>
+        <br>
 
 <h5><a name="modify">Other Graph Modifications</a></h5>