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<p class="MsoNormal"><span lang="EN-US">Dear Flash engineers and users, <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Hope this email finds you well. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I am using yt package of python for processing data from hdf5 files generated with FLASH. I have a question concerning the refinement level. In dealing with hdf5 files, do I need to fix the refinement level or use the
highest one? i.e. Which one of the python snippets below is correct for 2D heatmap plotting and data extraction?
<br>
<br>
Snippet I. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">refinement_level = 2 # 2 only for example<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">domain_left_edge = ds.domain_left_edge.to("cm")<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">domain_right_edge= ds.domain_right_edge.to("cm")<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">domain_dimensions= ds.domain_dimensions<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">cg = ds.covering_grid(<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> level = refinement_level,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> left_edge=domain_left_edge,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> dims = domain_dimensions * 2**refinement_level,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Snippet II. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">max_level = ds.max_level<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">base_dims = ds.domain_dimensions<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">highres_dims = base_dims * 2**max_level<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">domain_left_edge = ds.domain_left_edge.to("cm")<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">domain_right_edge = ds.domain_right_edge.to("cm")<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">cg = ds.covering_grid(<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> level = max_level,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> left_edge = domain_left_edge,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> dims = highres_dims,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">And for your reference, in the par file, my settings are
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">lrefine_max = 4 <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">lrefine_min = 1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks in advance for your advice. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Cheers, <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Jesse<br>
<br>
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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