128 lines
7.2 KiB
Markdown
128 lines
7.2 KiB
Markdown
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<!-- Begin breadcrumb -->
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<ul class="uk-breadcrumb">
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<li><a href="{{ "/pages/tutorial/index.html" | relative_url }}">Tutorials & Examples</a></li>
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<li><span>Stratigraphic Hex Mesh Tutorial</span></li>
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</ul>
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<ul class="uk-slideshow-items">
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<li>
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<img data-src="{{ "/pages/tutorial/stratigraphy/images/07_hex_01_fault_refine.png" | relative_url }}" width="1800" height="1200" alt="" uk-cover uk-img="target: !.uk-slideshow-items">
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</li>
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<li>
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<img data-src="{{ "/pages/tutorial/stratigraphy/images/07_hex_01_fault_refine_close_up.png" | relative_url }}" width="1800" height="1200" alt="" uk-cover uk-img="target: !.uk-slideshow-items">
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</li>
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</ul>
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<a class="uk-position-center-left uk-position-small uk-hidden-hover" href="#" uk-slidenav-previous uk-slideshow-item="previous"></a>
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<br/>
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<h2 id="refine-fault" class="uk-h3 uk-margin-remove">7. Refine Fault</h2>
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In step 5, we defined a fault surface (named `s_f`) intersecting the mesh. In
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this section, we are going to refine the mesh where the fault intersects it.
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The LaGriT command `intersect_elements` takes two meshes and creates an
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element-based attribute in mesh1 that contains the number of elements in mesh2
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that intersected the respective element in mesh1.
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Performing the intersection between the mesh `MONAME` and fault `s_f`, storing
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the intersection count in attribute `if_inter`:
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```
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cmo / select / MONAME
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intersect_elements / MONAME / s_f / if_inter
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```
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The attribute `if_inter` will be non-zero everywhere there is an intersection,
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and zero where there was not intersection. Taking advantage of this fact,
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we can create an eltset to refine:
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```
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eltset / e_refine / if_inter / gt / 0
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refine / eltset / eltset get e_refine
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cmo / DELATT / MONAME / if_inter
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```
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The element density has now increased where the mesh intersects `s_f`.
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We can then run this step *again*, further refining elements along that intersection:
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```
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intersect_elements / MONAME / s_f / if_inter
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eltset / e_refine / if_inter / gt / 0
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refine/ eltset / eltset get e_refine
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cmo / setatt / MONAME / if_inter / 1 0 0 / 0
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```
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And finally, remove the attribute `if_inter`, as it is no longer needed:
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```
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cmo / DELATT / MONAME / if_inter
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```
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At this point, many different mesh objects and surfaces still exist in memory from previous steps. Let's deallocate them and verify with the `memory` command:
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```
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cmo / status / brief
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cmo / status / MONAME
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memory / verify
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memory / print
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cmo / delete / s_bndry
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cmo / delete / mo_fence
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cmo / delete / mo_bndry
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cmo / delete / s_f
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cmo / delete / s_2_fp
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cmo / delete / s_1_fp
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cmo / delete / s_2_fm
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cmo / delete / s_1_fm
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cmo / delete / s_2
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cmo / delete / s_1
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memory / verify
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memory / print
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```
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<!-- Lightbox -->
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<div class="uk-child-width-1-2@m" uk-grid uk-lightbox="animation: slide">
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<div>
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<a class="uk-inline" href="{{ "/pages/tutorial/stratigraphy/images/07_hex_01_fault_refine_close_up.png" | relative_url }}" data-caption="Boundary fence intersection with hex mesh">
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<img src="{{ "/pages/tutorial/stratigraphy/images/07_hex_01_fault_refine_close_up.png" | relative_url }}" alt="">
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</a>
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</div>
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</div>
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<ul class="uk-pagination">
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<li><a href="{{ "/pages/tutorial/stratigraphy/step_06.html" | relative_url }}"><span class="uk-margin-small-right" uk-pagination-previous></span> Previous</a></li>
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</ul>
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<!-- Sidebar -->
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<div class="tm-sidebar-right uk-visible@l">
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<div uk-sticky="offset: 160" class="uk-sticky uk-active uk-sticky-fixed" style="position: fixed; top: 160px; width: 200px;">
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<ul uk-scrollspy-nav="closest: li; scroll: true; offset: 100" class="uk-nav uk-nav-default tm-nav uk-nav-parent-icon">
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/index.html" | relative_url }}">Index</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_01.html" | relative_url }}">1. Building a Hex Mesh</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_02.html" | relative_url }}">2. Define Boundaries Using Point Sets</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_03.html" | relative_url }}">3. Constructing Stratigraphy</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_04.html" | relative_url }}">4. Map Surfaces to Mesh</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_05.html" | relative_url }}">5. Constructing a Fault</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_06.html" | relative_url }}">6. Truncate with Polyline</a></li>
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<li class="uk-active"><a href="#refine-fault">7. Refine Fault</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_08.html" | relative_url }}">8. Insert Wells</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_09.html" | relative_url }}">9. Convert Hex Mesh to Tet</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_10_fehm.html" | relative_url }}">10.1 Write FEHM Files</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_10_exo.html" | relative_url }}">10.2 Write ExodusII Files</a></li>
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<li class="uk-nav-divider"></li>
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<!---->
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<li><a href="{{ "/pages/tutorial/stratigraphy/images/gallery.html" | relative_url }}" target="_blank"><span uk-icon="icon: image" class="uk-margin-small-right uk-icon"></span> <span class="uk-text-middle">Image Gallery</span></a></li>
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<li><a href="https://github.com/lanl/LaGriT/issues" target="_blank"><span uk-icon="icon: warning" class="uk-margin-small-right uk-icon"><svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg" data-svg="warning"><circle cx="10" cy="14" r="1"></circle><circle fill="none" stroke="#000" stroke-width="1.1" cx="10" cy="10" r="9"></circle><path d="M10.97,7.72 C10.85,9.54 10.56,11.29 10.56,11.29 C10.51,11.87 10.27,12 9.99,12 C9.69,12 9.49,11.87 9.43,11.29 C9.43,11.29 9.16,9.54 9.03,7.72 C8.96,6.54 9.03,6 9.03,6 C9.03,5.45 9.46,5.02 9.99,5 C10.53,5.01 10.97,5.44 10.97,6 C10.97,6 11.04,6.54 10.97,7.72 L10.97,7.72 Z"></path></svg></span> <span class="uk-text-middle">Report issue</span></a></li>
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<li><a href="mailto:lagrit-dev@lanl.gov" target="_blank"><span uk-icon="icon: commenting" class="uk-margin-small-right uk-icon"><svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg" data-svg="commenting"><polygon fill="none" stroke="#000" points="1.5,1.5 18.5,1.5 18.5,13.5 10.5,13.5 6.5,17.5 6.5,13.5 1.5,13.5"></polygon><circle cx="10" cy="8" r="1"></circle><circle cx="6" cy="8" r="1"></circle><circle cx="14" cy="8" r="1"></circle></svg></span> <span class="uk-text-middle">Get help</span></a></li>
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</ul>
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</div>
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</div>
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