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<article id="content">
<header>
<h1 class="title">Module <code>pymskt.utils.testing</code></h1>
</header>
<section id="section-intro">
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">from typing import Optional
from numpy.testing import assert_allclose
import SimpleITK as sitk
import pymskt as mskt
from vtk.util.numpy_support import vtk_to_numpy
import vtk
def assert_images_same(image1, image2):
"""
Helper function to assert that 2 SimpleITK images are the same.
Parameters
----------
image1 : SimpleITK.Image
Version 1 of the image.
image2 : SimpleITK.Image
Version 2 of the image.
"""
image1_array = sitk.GetArrayFromImage(image1)
image2_array = sitk.GetArrayFromImage(image2)
assert_allclose(image1_array, image2_array)
assert image1.GetOrigin() == image2.GetOrigin()
assert image1.GetSpacing() == image2.GetSpacing()
assert image1.GetDirection() == image2.GetDirection()
def assert_mesh_coordinates_same(mesh1, mesh2, rtol=1e-4):
"""
Helper function to assert that 2 vtkPolyData meshes points are the same.
Parameters
----------
mesh1 : vtk.vtkPolyData
Version 1 of the mesh
mesh2 : vtk.vtkPolyData
Version 2 of the mesh
"""
mesh1_pts = mskt.mesh.get_mesh_physical_point_coords(mesh1)
mesh2_pts = mskt.mesh.get_mesh_physical_point_coords(mesh2)
assert_allclose(mesh1_pts, mesh2_pts, rtol=rtol)
def assert_mesh_scalars_same(mesh1, mesh2, scalarname, scalarname2=None, rtol=1e-4):
"""
Helper function to assert that the scalars on 2 vtkPolyData meshes as the same.
Parameters
----------
mesh1 : vtk.vtkPolyData
Version 1 of the mesh
mesh2 : vtk.vtkPolyData
Version 2 of the mesh
scalarname : str
String of the name associated with the scalars we are comparing
scalarname2 : str, optional
String of the name associated with the scalars on the second mesh.
This is only needed if the second mesh scarals have a different name than the first.
"""
if scalarname2 is None:
scalarname2 = scalarname
scalars1 = vtk_to_numpy(mesh1.GetPointData().GetArray(scalarname))
scalars2 = vtk_to_numpy(mesh2.GetPointData().GetArray(scalarname2))
assert_allclose(scalars1, scalars2, rtol=rtol)</code></pre>
</details>
</section>
<section>
</section>
<section>
</section>
<section>
<h2 class="section-title" id="header-functions">Functions</h2>
<dl>
<dt id="pymskt.utils.testing.assert_images_same"><code class="name flex">
<span>def <span class="ident">assert_images_same</span></span>(<span>image1, image2)</span>
</code></dt>
<dd>
<div class="desc"><p>Helper function to assert that 2 SimpleITK images are the same. </p>
<h2 id="parameters">Parameters</h2>
<dl>
<dt><strong><code>image1</code></strong> : <code>SimpleITK.Image</code></dt>
<dd>Version 1 of the image.</dd>
<dt><strong><code>image2</code></strong> : <code>SimpleITK.Image</code></dt>
<dd>Version 2 of the image.</dd>
</dl></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def assert_images_same(image1, image2):
"""
Helper function to assert that 2 SimpleITK images are the same.
Parameters
----------
image1 : SimpleITK.Image
Version 1 of the image.
image2 : SimpleITK.Image
Version 2 of the image.
"""
image1_array = sitk.GetArrayFromImage(image1)
image2_array = sitk.GetArrayFromImage(image2)
assert_allclose(image1_array, image2_array)
assert image1.GetOrigin() == image2.GetOrigin()
assert image1.GetSpacing() == image2.GetSpacing()
assert image1.GetDirection() == image2.GetDirection()</code></pre>
</details>
</dd>
<dt id="pymskt.utils.testing.assert_mesh_coordinates_same"><code class="name flex">
<span>def <span class="ident">assert_mesh_coordinates_same</span></span>(<span>mesh1, mesh2, rtol=0.0001)</span>
</code></dt>
<dd>
<div class="desc"><p>Helper function to assert that 2 vtkPolyData meshes points are the same. </p>
<h2 id="parameters">Parameters</h2>
<dl>
<dt><strong><code>mesh1</code></strong> : <code>vtk.vtkPolyData</code></dt>
<dd>Version 1 of the mesh</dd>
<dt><strong><code>mesh2</code></strong> : <code>vtk.vtkPolyData</code></dt>
<dd>Version 2 of the mesh</dd>
</dl></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def assert_mesh_coordinates_same(mesh1, mesh2, rtol=1e-4):
"""
Helper function to assert that 2 vtkPolyData meshes points are the same.
Parameters
----------
mesh1 : vtk.vtkPolyData
Version 1 of the mesh
mesh2 : vtk.vtkPolyData
Version 2 of the mesh
"""
mesh1_pts = mskt.mesh.get_mesh_physical_point_coords(mesh1)
mesh2_pts = mskt.mesh.get_mesh_physical_point_coords(mesh2)
assert_allclose(mesh1_pts, mesh2_pts, rtol=rtol)</code></pre>
</details>
</dd>
<dt id="pymskt.utils.testing.assert_mesh_scalars_same"><code class="name flex">
<span>def <span class="ident">assert_mesh_scalars_same</span></span>(<span>mesh1, mesh2, scalarname, scalarname2=None, rtol=0.0001)</span>
</code></dt>
<dd>
<div class="desc"><p>Helper function to assert that the scalars on 2 vtkPolyData meshes as the same. </p>
<h2 id="parameters">Parameters</h2>
<dl>
<dt><strong><code>mesh1</code></strong> : <code>vtk.vtkPolyData</code></dt>
<dd>Version 1 of the mesh</dd>
<dt><strong><code>mesh2</code></strong> : <code>vtk.vtkPolyData</code></dt>
<dd>Version 2 of the mesh</dd>
<dt><strong><code>scalarname</code></strong> : <code>str</code></dt>
<dd>String of the name associated with the scalars we are comparing</dd>
<dt><strong><code>scalarname2</code></strong> : <code>str</code>, optional</dt>
<dd>String of the name associated with the scalars on the second mesh.
This is only needed if the second mesh scarals have a different name than the first.</dd>
</dl></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def assert_mesh_scalars_same(mesh1, mesh2, scalarname, scalarname2=None, rtol=1e-4):
"""
Helper function to assert that the scalars on 2 vtkPolyData meshes as the same.
Parameters
----------
mesh1 : vtk.vtkPolyData
Version 1 of the mesh
mesh2 : vtk.vtkPolyData
Version 2 of the mesh
scalarname : str
String of the name associated with the scalars we are comparing
scalarname2 : str, optional
String of the name associated with the scalars on the second mesh.
This is only needed if the second mesh scarals have a different name than the first.
"""
if scalarname2 is None:
scalarname2 = scalarname
scalars1 = vtk_to_numpy(mesh1.GetPointData().GetArray(scalarname))
scalars2 = vtk_to_numpy(mesh2.GetPointData().GetArray(scalarname2))
assert_allclose(scalars1, scalars2, rtol=rtol)</code></pre>
</details>
</dd>
</dl>
</section>
<section>
</section>
</article>
<nav id="sidebar">
<h1>Index</h1>
<div class="toc">
<ul></ul>
</div>
<ul id="index">
<li><h3>Super-module</h3>
<ul>
<li><code><a title="pymskt.utils" href="index.html">pymskt.utils</a></code></li>
</ul>
</li>
<li><h3><a href="#header-functions">Functions</a></h3>
<ul class="">
<li><code><a title="pymskt.utils.testing.assert_images_same" href="#pymskt.utils.testing.assert_images_same">assert_images_same</a></code></li>
<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>
<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>
</ul>
</li>
</ul>
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