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Hello Michael,<br>
<br>
<div class="moz-cite-prefix">On 01/29/2015 05:08 PM, CORTIS M.
wrote:<br>
</div>
<blockquote
cite="mid:4E4693B1-FACB-4E8B-82E9-CAE7DA57579A@durham.ac.uk"
type="cite">
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Hi Iulian,</div>
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<br>
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Yes I am trying to create an element made from single
vertex.</div>
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I want to used these for Material Point Method.</div>
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<br>
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after-white-space; ">
So there is a way of creating the vertices, but not adding
connectivity to themselves only?</div>
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Or may be another way round?</div>
</div>
</div>
</blockquote>
<br>
Perhaps, I'm not fully understanding your questions, but it is
certainly possible to create vertices in MOAB and then use them
directly in your analysis. There is no need to create an element
if, in fact, all you need are the vertices. Each vertex can be
tagged with data in the same way that an element can be.<br>
<br>
I hope that is helpful,<br>
Paul<br>
<br>
<blockquote
cite="mid:4E4693B1-FACB-4E8B-82E9-CAE7DA57579A@durham.ac.uk"
type="cite">
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medium; font-style: normal; font-variant: normal; font-weight:
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0px; word-wrap: break-word; -webkit-nbsp-mode: space;
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-webkit-nbsp-mode: space; -webkit-line-break:
after-white-space; ">
If not, don't worry about. Will create a vtk writer to do
this and hopefully moab can use the vertices.</div>
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word-spacing: 0px; -webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px; word-wrap: break-word;
-webkit-nbsp-mode: space; -webkit-line-break:
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<br>
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-webkit-text-stroke-width: 0px; word-wrap: break-word;
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Any assistance is really appreciated.</div>
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<br>
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Kind regards</div>
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<br>
</div>
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Michael</div>
<br class="Apple-interchange-newline">
</div>
<br class="Apple-interchange-newline">
<br class="Apple-interchange-newline">
</div>
<br>
<div>
<div>On 29 Jan 2015, at 17:24, "Grindeanu, Iulian R." <<a
moz-do-not-send="true" href="mailto:iulian@mcs.anl.gov">iulian@mcs.anl.gov</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">
<div ocsi="0" fpstyle="1" style="font-family: Menlo;
font-size: medium; font-style: normal; font-variant: normal;
font-weight: normal; letter-spacing: normal; line-height:
normal; orphans: 2; text-align: -webkit-auto; text-indent:
0px; text-transform: none; white-space: normal; widows: 2;
word-spacing: 0px; -webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px; word-wrap: break-word; ">
<div style="direction: ltr; font-family: Tahoma; font-size:
10pt; ">Hello,<br>
Moab does not have elements with a single vertex. Is this
what you are trying to do?<span
class="Apple-converted-space"> </span><br>
A vertex (node) is represented with an entity handle of
type MBVERTEX, and you can get coordinates for it<br>
<br>
I am not sure what are you trying to do.<br>
Best Regards,<br>
Iulian<br>
<br>
<div style="font-family: 'Times New Roman'; font-size:
16px; ">
<hr tabindex="-1">
<div id="divRpF966284" style="direction: ltr; "><font
face="Tahoma" size="2"><b>From:</b><span
class="Apple-converted-space"> </span><a
moz-do-not-send="true"
href="mailto:moab-dev-bounces@mcs.anl.gov">moab-dev-bounces@mcs.anl.gov</a>
[<a moz-do-not-send="true"
href="mailto:moab-dev-bounces@mcs.anl.gov">moab-dev-bounces@mcs.anl.gov</a>]
on behalf of CORTIS M. [<a moz-do-not-send="true"
href="mailto:michael.cortis@durham.ac.uk">michael.cortis@durham.ac.uk</a>]<br>
<b>Sent:</b><span class="Apple-converted-space"> </span>Thursday,
January 29, 2015 10:18 AM<br>
<b>To:</b><span class="Apple-converted-space"> </span><a
moz-do-not-send="true"
href="mailto:moab-dev@mcs.anl.gov">moab-dev@mcs.anl.gov</a><br>
<b>Cc:</b><span class="Apple-converted-space"> </span>Tautges,
Timothy J.<br>
<b>Subject:</b><span class="Apple-converted-space"> </span>Re:
[MOAB-dev] Setting connectivity for single vertex<br>
</font><br>
</div>
<div>
<div>
<div style="font-family: Menlo; font-size: medium;
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2; word-spacing: 0px; word-wrap: break-word; ">
<div style="font-family: Menlo; font-size: medium;
font-style: normal; font-variant: normal;
font-weight: normal; letter-spacing: normal;
line-height: normal; orphans: 2; text-indent:
0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px; word-wrap:
break-word; ">
Thanks Tim,</div>
<div style="font-family: Menlo; font-size: medium;
font-style: normal; font-variant: normal;
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line-height: normal; orphans: 2; text-indent:
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widows: 2; word-spacing: 0px; word-wrap:
break-word; ">
<br>
</div>
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font-style: normal; font-variant: normal;
font-weight: normal; letter-spacing: normal;
line-height: normal; orphans: 2; text-indent:
0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px; word-wrap:
break-word; ">
I am still having a problem, may be the guys at
Argonne can help with this.</div>
<div style="font-family: Menlo; font-size: medium;
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<br>
</div>
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font-style: normal; font-variant: normal;
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0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px; word-wrap:
break-word; ">
I've tried a simpler one and trying to crete the
vertex from point.</div>
<div style="font-family: Menlo; font-size: medium;
font-style: normal; font-variant: normal;
font-weight: normal; letter-spacing: normal;
line-height: normal; orphans: 2; text-indent:
0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px; word-wrap:
break-word; ">
<br>
</div>
<div style="font-family: Menlo; font-size: medium;
font-style: normal; font-variant: normal;
font-weight: normal; letter-spacing: normal;
line-height: normal; orphans: 2; text-indent:
0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px; word-wrap:
break-word; ">
<div style="margin: 0px; font-size: 12px; "> <span
style="font-size: 11px; ">double</span><span
class="Apple-converted-space"> </span>points[<span
style="font-size: 11px; ">9</span>]={<span
style="font-size: 11px; ">0.5</span>,<span
style="font-size: 11px; ">0</span>,<span
style="font-size: 11px; ">0</span>};</div>
<div style="margin: 0px; font-size: 12px; ">
EntityHandle vertex;</div>
<div style="margin: 0px; font-size: 12px; ">
rval=moab2.create_vertex(points,vertex);CHKERR_PETSC(rval);</div>
<div style="margin: 0px; font-size: 12px; ">
EntityHandle dummy;</div>
<div style="margin: 0px; font-size: 12px; ">
rval =
moab2.create_element(MBVERTEX,&vertex,<span
style="font-size: 11px; ">1</span>,dummy);
CHKERR_PETSC(rval);</div>
</div>
<br class="Apple-interchange-newline">
</div>
But I am getting Error code 2, MB_TYPE_OUT_OF_RANGE
!</div>
<div>Is it possible to use MBVERTEX here?</div>
<div><br>
</div>
<div>Thanks,</div>
<div><br>
</div>
<div>Michael</div>
<br>
<div>
<div>On 29 Jan 2015, at 15:04, Tim Tautges <<a
moz-do-not-send="true"
href="mailto:tautges@mcs.anl.gov"
target="_blank">tautges@mcs.anl.gov</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">[cc'ng moab-dev list, since
I've left Argonne.]<br>
<br>
dummy is 0, which is an invalid handle, but should
be the handle(s) of the entities whose
connectivity you're setting; I suspect what you
want there is *vertices.begin(). And you can't
set connectivity until you make an element, so you
need to call create_element, probably with the
number of verts per element as 1 and the
connectivity just the single vertex defining the
point element.<br>
<br>
- tim<br>
<br>
On 01/29/2015 03:34 AM, CORTIS M. wrote:<br>
<blockquote type="cite">Dear Tim,<br>
<br>
I've got the following problem:<br>
<br>
I want to create vertex entities, ie create the
points and vertex entities using those points.<br>
So I've create a set of vertices from an array
of coordinates.<br>
And If you try to set the connectivity for every
point you get Error code 4
(MB_ENTITY_NOT_FOUND).<br>
<br>
This is my code:<br>
<br>
double points[6]={1,0,0, 0,1,0, 0,0,1};<br>
Range vertices;<br>
rval = moab.create_vertices(points,2,vertices);
CHKERR_PETSC(rval);<br>
EntityHandle dummy=0;<br>
rval =
moab.set_connectivity(dummy,vertexlist,1);
CHKERR_PETSC(rval); //Error code 4<br>
<br>
Any suggestions how to overcome this problem.<br>
<br>
Kind regards,<br>
<br>
Michael</blockquote>
</blockquote>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
<br>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
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