.. DO NOT EDIT. .. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY. .. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE: .. "tutorial/02_mesh/exercises/e_read-file.py" .. LINE NUMBERS ARE GIVEN BELOW. .. only:: html .. note:: :class: sphx-glr-download-link-note :ref:`Go to the end ` to download the full example code or to run this example in your browser via Binder .. rst-class:: sphx-glr-example-title .. _sphx_glr_tutorial_02_mesh_exercises_e_read-file.py: .. _read_file_exercise: Load and Plot from a File ~~~~~~~~~~~~~~~~~~~~~~~~~ Read a dataset from a known file type. .. GENERATED FROM PYTHON SOURCE LINES 12-18 We try to make loading a mesh as easy as possible - if your data is in one of the many supported file formats, simply use :func:`pyvista.read` to load your spatially referenced dataset into a PyVista mesh object. The following code block uses a built-in example file and displays an airplane mesh. .. GENERATED FROM PYTHON SOURCE LINES 18-22 .. code-block:: Python import pyvista as pv from pyvista import examples .. GENERATED FROM PYTHON SOURCE LINES 24-26 .. code-block:: Python help(pv.read) .. GENERATED FROM PYTHON SOURCE LINES 27-29 PyVista supports a wide variety of file formats. The supported file extensions are listed in an internal function: .. GENERATED FROM PYTHON SOURCE LINES 29-32 .. code-block:: Python help(pv.core.utilities.reader.get_reader) .. GENERATED FROM PYTHON SOURCE LINES 33-35 The following code block uses a built-in example file, displays an airplane mesh and returns the camera's position: .. GENERATED FROM PYTHON SOURCE LINES 35-40 .. code-block:: Python # Get a sample file filename = examples.planefile filename .. GENERATED FROM PYTHON SOURCE LINES 41-45 Note the above filename, it's a ``.ply`` file - one of the many supported formats in PyVista. Use ``pv.read`` to load the file as a mesh: .. GENERATED FROM PYTHON SOURCE LINES 45-50 .. code-block:: Python mesh = ... cpos = mesh.plot() .. GENERATED FROM PYTHON SOURCE LINES 51-52 The points from the mesh are directly accessible as a NumPy array: .. GENERATED FROM PYTHON SOURCE LINES 52-55 .. code-block:: Python mesh.points .. GENERATED FROM PYTHON SOURCE LINES 56-57 The faces from the mesh are also directly accessible as a NumPy array: .. GENERATED FROM PYTHON SOURCE LINES 57-61 .. code-block:: Python mesh.faces.reshape(-1, 4)[:, 1:] # triangular faces .. GENERATED FROM PYTHON SOURCE LINES 62-67 Loading other files types is just as easy! Simply pass your file path to the :func:`pyvista.read` function and that's it! Here are a few other examples - simply replace ``examples.download_*`` in the examples below with ``pyvista.read('path/to/you/file.ext')`` .. GENERATED FROM PYTHON SOURCE LINES 69-70 Example STL file: .. GENERATED FROM PYTHON SOURCE LINES 70-74 .. code-block:: Python mesh = examples.download_cad_model() cpos = [(107.0, 68.5, 204.0), (128.0, 86.5, 223.5), (0.45, 0.36, -0.8)] mesh.plot(cpos=cpos) .. GENERATED FROM PYTHON SOURCE LINES 75-76 Example OBJ file .. GENERATED FROM PYTHON SOURCE LINES 76-80 .. code-block:: Python mesh = examples.download_doorman() mesh.plot(cpos="xy") .. GENERATED FROM PYTHON SOURCE LINES 81-82 Example BYU file .. GENERATED FROM PYTHON SOURCE LINES 82-86 .. code-block:: Python mesh = examples.download_teapot() mesh.plot(cpos=[-1, 2, -5], show_edges=True) .. GENERATED FROM PYTHON SOURCE LINES 87-88 Example VTK file .. GENERATED FROM PYTHON SOURCE LINES 88-93 .. code-block:: Python mesh = examples.download_bunny_coarse() cpos = [(0.2, 0.3, 0.9), (0, 0, 0), (0, 1, 0)] mesh.plot(cpos=cpos, show_edges=True, color=True) .. GENERATED FROM PYTHON SOURCE LINES 94-99 Exercise ^^^^^^^^ Read a file yourself with :func:`pyvista.read`. If you have a supported file format, use that! Otherwise, download this file: https://github.com/pyvista/pyvista-tutorial/raw/main/tutorial/02_mesh/scipy.vtk .. GENERATED FROM PYTHON SOURCE LINES 99-103 .. code-block:: Python # (your code here) # mesh = pv.read('path/to/file.vtk) .. GENERATED FROM PYTHON SOURCE LINES 104-111 .. raw:: html
Open In Colab
.. _sphx_glr_download_tutorial_02_mesh_exercises_e_read-file.py: .. only:: html .. container:: sphx-glr-footer sphx-glr-footer-example .. container:: binder-badge .. image:: images/binder_badge_logo.svg :target: https://mybinder.org/v2/gh/pyvista/pyvista-tutorial/gh-pages?urlpath=lab/tree/notebooks/tutorial/02_mesh/exercises/e_read-file.ipynb :alt: Launch binder :width: 150 px .. container:: sphx-glr-download sphx-glr-download-jupyter :download:`Download Jupyter notebook: e_read-file.ipynb ` .. container:: sphx-glr-download sphx-glr-download-python :download:`Download Python source code: e_read-file.py ` .. only:: html .. rst-class:: sphx-glr-signature `Gallery generated by Sphinx-Gallery `_