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<main>





  
  

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<article id="content">





  
  

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<header>





  
  

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<h1 class="title">Module <code>pymskt.utils.testing</code></h1>





  
  

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</header>





  
  

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<section id="section-intro">





  
  

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<details class="source">





  
  

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<summary>





  
  

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<span>Expand source code</span>





  
  

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</summary>





  
  

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<pre><code class="python">from typing import Optional





  
  

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from numpy.testing import assert_allclose





  
  

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import SimpleITK as sitk





  
  

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import pymskt as mskt





  
  

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from vtk.util.numpy_support import vtk_to_numpy





  
  

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import vtk





  
  

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def assert_images_same(image1, image2):





  
  

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    &#34;&#34;&#34;





  
  

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    Helper function to assert that 2 SimpleITK images are the same. 





  
  

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    Parameters





  
  

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    ----------





  
  

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    image1 : SimpleITK.Image





  
  

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        Version 1 of the image. 





  
  

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    image2 : SimpleITK.Image





  
  

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        Version 2 of the image. 





  
  

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    &#34;&#34;&#34;    





  
  

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    image1_array = sitk.GetArrayFromImage(image1)





  
  

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    image2_array = sitk.GetArrayFromImage(image2)





  
  

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    assert_allclose(image1_array, image2_array)





  
  

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    assert image1.GetOrigin() == image2.GetOrigin()





  
  

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    assert image1.GetSpacing() == image2.GetSpacing()





  
  

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    assert image1.GetDirection() == image2.GetDirection()





  
  

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def assert_mesh_coordinates_same(mesh1, mesh2, rtol=1e-4):





  
  

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    &#34;&#34;&#34;





  
  

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    Helper function to assert that 2 vtkPolyData meshes points are the same. 





  
  

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    Parameters





  
  

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    ----------





  
  

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    mesh1 : vtk.vtkPolyData





  
  

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        Version 1 of the mesh





  
  

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    mesh2 : vtk.vtkPolyData





  
  

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        Version 2 of the mesh





  
  

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    &#34;&#34;&#34;





  
  

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    mesh1_pts = mskt.mesh.get_mesh_physical_point_coords(mesh1)





  
  

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    mesh2_pts = mskt.mesh.get_mesh_physical_point_coords(mesh2)





  
  

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    assert_allclose(mesh1_pts, mesh2_pts, rtol=rtol)





  
  

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def assert_mesh_scalars_same(mesh1, mesh2, scalarname, scalarname2=None, rtol=1e-4):





  
  

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    &#34;&#34;&#34;





  
  

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    Helper function to assert that the scalars on 2 vtkPolyData meshes as the same. 





  
  

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    Parameters





  
  

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    ----------





  
  

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    mesh1 : vtk.vtkPolyData





  
  

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        Version 1 of the mesh





  
  

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    mesh2 : vtk.vtkPolyData





  
  

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        Version 2 of the mesh





  
  

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    scalarname : str





  
  

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        String of the name associated with the scalars we are comparing





  
  

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    scalarname2 : str, optional





  
  

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        String of the name associated with the scalars on the second mesh. 





  
  

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        This is only needed if the second mesh scarals have a different name than the first. 





  
  

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    &#34;&#34;&#34;





  
  

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    if scalarname2 is None:





  
  

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        scalarname2 = scalarname





  
  

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    scalars1 = vtk_to_numpy(mesh1.GetPointData().GetArray(scalarname))





  
  

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    scalars2 = vtk_to_numpy(mesh2.GetPointData().GetArray(scalarname2))





  
  

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    assert_allclose(scalars1, scalars2, rtol=rtol)</code></pre>





  
  

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</details>





  
  

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</section>





  
  

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<section>





  
  

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</section>





  
  

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<section>





  
  

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</section>





  
  

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<section>





  
  

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<h2 class="section-title" id="header-functions">Functions</h2>





  
  

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<dl>





  
  

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<dt id="pymskt.utils.testing.assert_images_same"><code class="name flex">





  
  

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<span>def <span class="ident">assert_images_same</span></span>(<span>image1, image2)</span>





  
  

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</code></dt>





  
  

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<dd>





  
  

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<div class="desc"><p>Helper function to assert that 2 SimpleITK images are the same. </p>





  
  

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<h2 id="parameters">Parameters</h2>





  
  

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<dl>





  
  

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<dt><strong><code>image1</code></strong> :&ensp;<code>SimpleITK.Image</code></dt>





  
  

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<dd>Version 1 of the image.</dd>





  
  

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<dt><strong><code>image2</code></strong> :&ensp;<code>SimpleITK.Image</code></dt>





  
  

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<dd>Version 2 of the image.</dd>





  
  

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</dl></div>





  
  

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<details class="source">





  
  

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<summary>





  
  

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<span>Expand source code</span>





  
  

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</summary>





  
  

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<pre><code class="python">def assert_images_same(image1, image2):





  
  

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    &#34;&#34;&#34;





  
  

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    Helper function to assert that 2 SimpleITK images are the same. 





  
  

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    Parameters





  
  

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    ----------





  
  

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    image1 : SimpleITK.Image





  
  

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        Version 1 of the image. 





  
  

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    image2 : SimpleITK.Image





  
  

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        Version 2 of the image. 





  
  

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    &#34;&#34;&#34;    





  
  

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    image1_array = sitk.GetArrayFromImage(image1)





  
  

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    image2_array = sitk.GetArrayFromImage(image2)





  
  

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    assert_allclose(image1_array, image2_array)





  
  

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    assert image1.GetOrigin() == image2.GetOrigin()





  
  

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    assert image1.GetSpacing() == image2.GetSpacing()





  
  

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    assert image1.GetDirection() == image2.GetDirection()</code></pre>





  
  

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</details>





  
  

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</dd>





  
  

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<dt id="pymskt.utils.testing.assert_mesh_coordinates_same"><code class="name flex">





  
  

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<span>def <span class="ident">assert_mesh_coordinates_same</span></span>(<span>mesh1, mesh2, rtol=0.0001)</span>





  
  

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</code></dt>





  
  

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<dd>





  
  

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<div class="desc"><p>Helper function to assert that 2 vtkPolyData meshes points are the same. </p>





  
  

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<h2 id="parameters">Parameters</h2>





  
  

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<dl>





  
  

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<dt><strong><code>mesh1</code></strong> :&ensp;<code>vtk.vtkPolyData</code></dt>





  
  

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<dd>Version 1 of the mesh</dd>





  
  

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<dt><strong><code>mesh2</code></strong> :&ensp;<code>vtk.vtkPolyData</code></dt>





  
  

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<dd>Version 2 of the mesh</dd>





  
  

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</dl></div>





  
  

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<details class="source">





  
  

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<summary>





  
  

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<span>Expand source code</span>





  
  

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</summary>





  
  

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<pre><code class="python">def assert_mesh_coordinates_same(mesh1, mesh2, rtol=1e-4):





  
  

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    &#34;&#34;&#34;





  
  

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    Helper function to assert that 2 vtkPolyData meshes points are the same. 





  
  

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    Parameters





  
  

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    ----------





  
  

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    mesh1 : vtk.vtkPolyData





  
  

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        Version 1 of the mesh





  
  

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    mesh2 : vtk.vtkPolyData





  
  

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        Version 2 of the mesh





  
  

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    &#34;&#34;&#34;





  
  

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    mesh1_pts = mskt.mesh.get_mesh_physical_point_coords(mesh1)





  
  

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    mesh2_pts = mskt.mesh.get_mesh_physical_point_coords(mesh2)





  
  

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    assert_allclose(mesh1_pts, mesh2_pts, rtol=rtol)</code></pre>





  
  

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</details>





  
  

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</dd>





  
  

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<dt id="pymskt.utils.testing.assert_mesh_scalars_same"><code class="name flex">





  
  

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<span>def <span class="ident">assert_mesh_scalars_same</span></span>(<span>mesh1, mesh2, scalarname, scalarname2=None, rtol=0.0001)</span>





  
  

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</code></dt>





  
  

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<dd>





  
  

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<div class="desc"><p>Helper function to assert that the scalars on 2 vtkPolyData meshes as the same. </p>





  
  

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<h2 id="parameters">Parameters</h2>





  
  

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<dl>





  
  

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<dt><strong><code>mesh1</code></strong> :&ensp;<code>vtk.vtkPolyData</code></dt>





  
  

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<dd>Version 1 of the mesh</dd>





  
  

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<dt><strong><code>mesh2</code></strong> :&ensp;<code>vtk.vtkPolyData</code></dt>





  
  

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<dd>Version 2 of the mesh</dd>





  
  

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<dt><strong><code>scalarname</code></strong> :&ensp;<code>str</code></dt>





  
  

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<dd>String of the name associated with the scalars we are comparing</dd>





  
  

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<dt><strong><code>scalarname2</code></strong> :&ensp;<code>str</code>, optional</dt>





  
  

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<dd>String of the name associated with the scalars on the second mesh.





  
  

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This is only needed if the second mesh scarals have a different name than the first.</dd>





  
  

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</dl></div>





  
  

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<details class="source">





  
  

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<summary>





  
  

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<span>Expand source code</span>





  
  

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</summary>





  
  

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<pre><code class="python">def assert_mesh_scalars_same(mesh1, mesh2, scalarname, scalarname2=None, rtol=1e-4):





  
  

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    &#34;&#34;&#34;





  
  

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    Helper function to assert that the scalars on 2 vtkPolyData meshes as the same. 





  
  

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    Parameters





  
  

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    ----------





  
  

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    mesh1 : vtk.vtkPolyData





  
  

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        Version 1 of the mesh





  
  

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    mesh2 : vtk.vtkPolyData





  
  

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        Version 2 of the mesh





  
  

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    scalarname : str





  
  

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        String of the name associated with the scalars we are comparing





  
  

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    scalarname2 : str, optional





  
  

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        String of the name associated with the scalars on the second mesh. 





  
  

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        This is only needed if the second mesh scarals have a different name than the first. 





  
  

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    &#34;&#34;&#34;





  
  

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    if scalarname2 is None:





  
  

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        scalarname2 = scalarname





  
  

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    scalars1 = vtk_to_numpy(mesh1.GetPointData().GetArray(scalarname))





  
  

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    scalars2 = vtk_to_numpy(mesh2.GetPointData().GetArray(scalarname2))





  
  

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    assert_allclose(scalars1, scalars2, rtol=rtol)</code></pre>





  
  

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</details>





  
  

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</dd>





  
  

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</dl>





  
  

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</section>





  
  

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<section>





  
  

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</section>





  
  

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</article>





  
  

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<nav id="sidebar">





  
  

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<h1>Index</h1>





  
  

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<div class="toc">





  
  

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<ul></ul>





  
  

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</div>





  
  

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<ul id="index">





  
  

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<li><h3>Super-module</h3>





  
  

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<ul>





  
  

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<li><code><a title="pymskt.utils" href="index.html">pymskt.utils</a></code></li>





  
  

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</ul>





  
  

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</li>





  
  

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<li><h3><a href="#header-functions">Functions</a></h3>





  
  

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<ul class="">





  
  

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<li><code><a title="pymskt.utils.testing.assert_images_same" href="#pymskt.utils.testing.assert_images_same">assert_images_same</a></code></li>





  
  

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<li><code><a title="pymskt.utils.testing.assert_mesh_coordinates_same" href="#pymskt.utils.testing.assert_mesh_coordinates_same">assert_mesh_coordinates_same</a></code></li>





  
  

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<li><code><a title="pymskt.utils.testing.assert_mesh_scalars_same" href="#pymskt.utils.testing.assert_mesh_scalars_same">assert_mesh_scalars_same</a></code></li>





  
  

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</ul>





  
  

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</li>





  
  

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