<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
</head>
<body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri, sans-serif; ">
<div>
<div>
<div>At each point, this filter finds all cells neighboring that point. For each cell, it computes the gradient (by calling vtkCell::Derivative) at the location of the point and then averages the results for all cells. If you click on Faster Computation,
then the filter will compute one gradient at the center of each cell, and then average those to each point (the equivalent of the cell to point filter).</div>
<div><br>
</div>
<div>-Ken</div>
<div><font size="2"><font face="Consolas,Courier New,Courier"><span style="font-size:10pt"><br>
**** Kenneth Moreland<br>
*** Sandia National Laboratories<br>
*********** <br>
*** *** *** email: <a href="kmorel@sandia.gov">kmorel@sandia.gov</a><br>
** *** ** phone: (505) 844-8919<br>
*** web: <a href="http://www.cs.unm.edu/~kmorel">http://www.cs.unm.edu/~kmorel</a><br>
</span></font></font></div>
</div>
</div>
<div><br>
</div>
<span id="OLK_SRC_BODY_SECTION">
<div style="font-family:Calibri; font-size:11pt; text-align:left; color:black; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style="font-weight:bold">From: </span>Jayesh Badwaik <<a href="mailto:jayesh.badwaik90@gmail.com">jayesh.badwaik90@gmail.com</a>><br>
<span style="font-weight:bold">Date: </span>Sat, 6 Aug 2011 01:52:06 +0530<br>
<span style="font-weight:bold">To: </span><<a href="mailto:paraview-developers@paraview.org">paraview-developers@paraview.org</a>><br>
<span style="font-weight:bold">Subject: </span>[Paraview-developers] Calculation of Gradient for Unstructured Grid Data<br>
</div>
<div><br>
</div>
<blockquote id="MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style="BORDER-LEFT: #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;">
Hi<br>
<br>
I don't know if this is the right place to ask since I am not actually trying to contribute anything.<br>
Just curious about some feature's development part. So please excuse me if this is not the right place.<br>
<br>
I've been using the function in paraview to calculate the gradient of an unstructured Grid Data.<br>
(Filters->Alphabetical->Gradient (Unstructured) )<br>
I've noticed that the gradient of the data is available at the nodes of the grids when the data
<br>
itself is available at the nodes of the grids. I was curious as to what method, technique or
<br>
idea was used to implement the feature. I myself need the same feature. And hence, I was curious.<br>
<br>
I have been trying to read the wiki and the class documentation. However, I am not sure I am finding the
<br>
right gradient file.<br>
<br>
Thanks in Advance<br>
<br clear="all">
Cheers and Regards<br>
Jayesh Vinay Badwaik<br>
Electronics and Communication Engineering<br>
VNIT, Nagpur<br>
INDIA<br>
<br>
-----------------------------------------------------------------------------------------------------------------------------------------------<br>
"We are servants rather than masters in mathematics" -- Charles Hermite<br>
<br>
_______________________________________________ Paraview-developers mailing list <a href="mailto:Paraview-developers@paraview.org">
Paraview-developers@paraview.org</a> <a href="http://public.kitware.com/mailman/listinfo/paraview-developers">
http://public.kitware.com/mailman/listinfo/paraview-developers</a> </blockquote>
</span>
</body>
</html>