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<p><br /></p>
<h2 id="constructing-a-fault" class="uk-h3 uk-margin-remove">5. Constructing a Fault and Layers</h2>
<h3 id="51-creating-a-fault-and-subsurface-layers">5.1 Creating a Fault and Subsurface Layers</h3>
<p>Next, we are going to map a fault and surfaces to our mesh. The objects created
will be:</p>
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<p>For all five of these surfaces, we will:</p>
<ol>
<li>Define the X,Y,Z extent</li>
<li>Use <code class="language-plaintext highlighter-rouge">quadxy</code> to generate the point distribution</li>
<li>Connect the points into a quad mesh using <code class="language-plaintext highlighter-rouge">createpts/brick</code>.</li>
</ol>
<p>For the main fault mesh, this process looks like:</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>cmo / create / mosurf_fault
cmo / select / mosurf_fault
define / X0S / -20.0
define / X1S / 4020.0
define / Y0S / -20.0
define / Y1S / 4020.0
define / Z1 / -1.e4
define / Z2 / -1.e4
define / Z3 / 1.e4
define / Z4 / 1.e4
quadxy / NX NY /X0S Y0S Z1/X1S Y0S Z2/X1S Y1S Z3/X0S Y1S Z4
createpts/brick/xyz/ NX NY 1 /1,0,0/connect
cmo / printatt / mosurf / -xyz- / minmax
</code></pre></div></div>
<p>For the remaining four surfaces this process is repeated, with <code class="language-plaintext highlighter-rouge">Z1,Z2,Z3,Z4</code>
altered independently.</p>
<p>The created surfaces have the names <code class="language-plaintext highlighter-rouge">mosurf1_fminus</code>, <code class="language-plaintext highlighter-rouge">mosurf2_fminus</code>,
<code class="language-plaintext highlighter-rouge">mosurf1_fplus</code>, <code class="language-plaintext highlighter-rouge">mosurf2_fplus</code>, and <code class="language-plaintext highlighter-rouge">mosurf_fault</code>.</p>
<h3 id="52-define-geometry-of-hydrostratigraphic-model">5.2 Define Geometry of Hydrostratigraphic Model</h3>
<p>Recall in step 4 how we used two surface meshes to alter <code class="language-plaintext highlighter-rouge">imt</code> and <code class="language-plaintext highlighter-rouge">itetclr</code>
values: first, by defining <code class="language-plaintext highlighter-rouge">surfaces</code> from the planar meshes; second, using the
<code class="language-plaintext highlighter-rouge">surface</code> objects to define <code class="language-plaintext highlighter-rouge">region</code> objects; third, creating <code class="language-plaintext highlighter-rouge">psets</code> and
<code class="language-plaintext highlighter-rouge">eltsets</code> from the <code class="language-plaintext highlighter-rouge">regions</code>; and finally, by modifying <code class="language-plaintext highlighter-rouge">itetclr</code> and <code class="language-plaintext highlighter-rouge">imt</code>
through the defined <code class="language-plaintext highlighter-rouge">psets</code> and <code class="language-plaintext highlighter-rouge">eltsets</code>.</p>
<p>This process is replicated here. First, by creating the <code class="language-plaintext highlighter-rouge">surfaces</code>:</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>surface / s_1_fm / reflect / sheet / mosurf1_fminus
surface / s_2_fm / reflect / sheet / mosurf2_fminus
surface / s_1_fp / reflect / sheet / mosurf1_fplus
surface / s_2_fp / reflect / sheet / mosurf2_fplus
surface / s_f / reflect / sheet / mosurf_fault
</code></pre></div></div>
<p>Then, by mapping the surfaces to regions (and deleting the planar meshes to
free up memory):</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>region / r_1_fm / le s_1_fm and le s_f
region / r_2_fm / gt s_1_fm and le s_2_fm and le s_f
region / r_3_fm / gt s_2_fm and le s_f
region / r_1_fp / le s_1_fp and gt s_f
region / r_2_fp / gt s_1_fp and le s_2_fp and gt s_f
region / r_3_fp / gt s_2_fp and gt s_f
cmo / delete / mosurf1_fminus
cmo / delete / mosurf2_fminus
cmo / delete / mosurf1_fplus
cmo / delete / mosurf2_fplus
cmo / delete / mosurf_fault
</code></pre></div></div>
<p>And finally, by creating <code class="language-plaintext highlighter-rouge">psets</code> and <code class="language-plaintext highlighter-rouge">eltsets</code> and using them to modify material
attributes of the parent mesh:</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>pset / p_r_1_fm / region / r_1_fm / 1 0 0
pset / p_r_2_fm / region / r_2_fm / 1 0 0
pset / p_r_3_fm / region / r_3_fm / 1 0 0
pset / p_r_1_fp / region / r_1_fp / 1 0 0
pset / p_r_2_fp / region / r_2_fp / 1 0 0
pset / p_r_3_fp / region / r_3_fp / 1 0 0
eltset / e_r_1_fm / region / r_1_fm
eltset / e_r_2_fm / region / r_2_fm
eltset / e_r_3_fm / region / r_3_fm
eltset / e_r_1_fp / region / r_1_fp
eltset / e_r_2_fp / region / r_2_fp
eltset / e_r_3_fp / region / r_3_fp
cmo / setatt / MONAME / imt / 1 0 0 / 7
cmo / setatt / MONAME / itetclr / 1 0 0 / 7
cmo / setatt / MONAME / imt / pset get p_r_1_fm / 1
cmo / setatt / MONAME / imt / pset get p_r_2_fm / 2
cmo / setatt / MONAME / imt / pset get p_r_3_fm / 3
cmo / setatt / MONAME / imt / pset get p_r_1_fp / 4
cmo / setatt / MONAME / imt / pset get p_r_2_fp / 5
cmo / setatt / MONAME / imt / pset get p_r_3_fp / 6
cmo / setatt / MONAME / itetclr / eltset get e_r_1_fm / 1
cmo / setatt / MONAME / itetclr / eltset get e_r_2_fm / 2
cmo / setatt / MONAME / itetclr / eltset get e_r_3_fm / 3
cmo / setatt / MONAME / itetclr / eltset get e_r_1_fp / 4
cmo / setatt / MONAME / itetclr / eltset get e_r_2_fp / 5
cmo / setatt / MONAME / itetclr / eltset get e_r_3_fp / 6
</code></pre></div></div>
<p>The six distinct regions can now be seen by viewing <code class="language-plaintext highlighter-rouge">itetclr</code> on the
parent mesh:</p>
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<li class=""><a href="/pages/tutorial/stratigraphy/step_01.html">1. Building a Hex Mesh</a></li>
<li class=""><a href="/pages/tutorial/stratigraphy/step_02.html">2. Define Boundaries Using Point Sets</a></li>
<li class=""><a href="/pages/tutorial/stratigraphy/step_03.html">3. Constructing Stratigraphy</a></li>
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<li class=""><a href="/pages/tutorial/stratigraphy/step_06.html">6. Truncate with Polyline</a></li>
<li class=""><a href="/pages/tutorial/stratigraphy/step_07.html">7. Refine Fault</a></li>
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<li class=""><a href="/pages/tutorial/stratigraphy/step_10_fehm.html">10.1 Write FEHM Files</a></li>
<li class=""><a href="/pages/tutorial/stratigraphy/step_10_exo.html">10.2 Write ExodusII Files</a></li>
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