.. DO NOT EDIT. .. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY. .. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE: .. "examples\05-file-IO\04-basic-load-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 .. rst-class:: sphx-glr-example-title .. _sphx_glr_examples_05-file-IO_04-basic-load-file.py: .. _ref_basic_load_file_example: Working with a result file ~~~~~~~~~~~~~~~~~~~~~~~~~~ This example shows how to write and upload files on the server machine and then download them back on the client side. The resulting fields container is then exported to a CSV file. .. GENERATED FROM PYTHON SOURCE LINES 15-17 Load a model from the DPF-Core examples: ``ansys.dpf.core`` module. .. GENERATED FROM PYTHON SOURCE LINES 17-25 .. code-block:: Python from ansys.dpf import core as dpf from ansys.dpf.core import examples model = dpf.Model(examples.find_simple_bar()) mesh = model.metadata.meshed_region .. GENERATED FROM PYTHON SOURCE LINES 26-29 Get and plot the fields container for the result ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Get the fields container for the result and plot it so you can compare it later: .. GENERATED FROM PYTHON SOURCE LINES 29-34 .. code-block:: Python displacement_operator = model.results.displacement() fc_out = displacement_operator.outputs.fields_container() mesh.plot(fc_out) .. image-sg:: /examples/05-file-IO/images/sphx_glr_04-basic-load-file_001.png :alt: 04 basic load file :srcset: /examples/05-file-IO/images/sphx_glr_04-basic-load-file_001.png :class: sphx-glr-single-img .. GENERATED FROM PYTHON SOURCE LINES 35-38 Export result ~~~~~~~~~~~~~ Export the fields container in the CSV format: .. GENERATED FROM PYTHON SOURCE LINES 38-56 .. code-block:: Python import os csv_file_name = "simple_bar_fc.csv" # Define an output path for the resulting .csv file if not dpf.SERVER.local_server: # Define it server-side if using a remote server tmp_dir_path = dpf.core.make_tmp_dir_server(dpf.SERVER) server_file_path = dpf.path_utilities.join(tmp_dir_path, csv_file_name) else: server_file_path = os.path.join(os.getcwd(), csv_file_name) # Perform the export to csv on the server side export_csv_operator = dpf.operators.serialization.field_to_csv() export_csv_operator.inputs.field_or_fields_container.connect(fc_out) export_csv_operator.inputs.file_path.connect(server_file_path) export_csv_operator.run() .. GENERATED FROM PYTHON SOURCE LINES 57-60 Download CSV result file ~~~~~~~~~~~~~~~~~~~~~~~~~ Download the file ``simple_bar_fc.csv``: .. GENERATED FROM PYTHON SOURCE LINES 60-67 .. code-block:: Python if not dpf.SERVER.local_server: downloaded_client_file_path = os.path.join(os.getcwd(), "simple_bar_fc_downloaded.csv") dpf.download_file(server_file_path, downloaded_client_file_path) else: downloaded_client_file_path = server_file_path .. GENERATED FROM PYTHON SOURCE LINES 68-71 Load CSV result file as operator input ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Load the fields container contained in the CSV file as an operator input: .. GENERATED FROM PYTHON SOURCE LINES 71-81 .. code-block:: Python my_data_sources = dpf.DataSources(server_file_path) import_csv_operator = dpf.operators.serialization.csv_to_field() import_csv_operator.inputs.data_sources.connect(my_data_sources) server_fc_out = import_csv_operator.outputs.fields_container() mesh.plot(server_fc_out) # Remove file to avoid polluting. os.remove(downloaded_client_file_path) .. image-sg:: /examples/05-file-IO/images/sphx_glr_04-basic-load-file_002.png :alt: 04 basic load file :srcset: /examples/05-file-IO/images/sphx_glr_04-basic-load-file_002.png :class: sphx-glr-single-img .. GENERATED FROM PYTHON SOURCE LINES 82-85 Make operations over the fields container ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Use this fields container to get the minimum displacement: .. GENERATED FROM PYTHON SOURCE LINES 85-91 .. code-block:: Python min_max_op = dpf.operators.min_max.min_max_fc() min_max_op.inputs.fields_container.connect(server_fc_out) min_field = min_max_op.outputs.field_min() min_field.data .. rst-class:: sphx-glr-script-out .. code-block:: none DPFArray([[-8.202171e-07, -6.265107e-06, -2.444680e-05]]) .. GENERATED FROM PYTHON SOURCE LINES 92-95 Compare the original and the new fields container ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Subtract the two fields and plot an error map: .. GENERATED FROM PYTHON SOURCE LINES 95-105 .. code-block:: Python abs_error = (fc_out - server_fc_out).eval() divide = dpf.operators.math.component_wise_divide() divide.inputs.fieldA.connect(fc_out - server_fc_out) divide.inputs.fieldB.connect(fc_out) scale = dpf.operators.math.scale() scale.inputs.field.connect(divide) scale.inputs.ponderation.connect(100.0) rel_error = scale.eval() .. GENERATED FROM PYTHON SOURCE LINES 106-114 Plot both absolute and relative error fields ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Note that the absolute error is bigger where the displacements are bigger, at the tip of the geometry. Instead, the relative error is similar across the geometry since we are dividing by the displacements ``fc_out``. Both plots show errors that can be understood as zero due to machine precision (1e-12 mm for the absolute error and 1e-5% for the relative error). .. GENERATED FROM PYTHON SOURCE LINES 114-116 .. code-block:: Python mesh.plot(abs_error, scalar_bar_args={"title": "Absolute error [mm]"}) mesh.plot(rel_error, scalar_bar_args={"title": "Relative error [%]"}) .. rst-class:: sphx-glr-horizontal * .. image-sg:: /examples/05-file-IO/images/sphx_glr_04-basic-load-file_003.png :alt: 04 basic load file :srcset: /examples/05-file-IO/images/sphx_glr_04-basic-load-file_003.png :class: sphx-glr-multi-img * .. image-sg:: /examples/05-file-IO/images/sphx_glr_04-basic-load-file_004.png :alt: 04 basic load file :srcset: /examples/05-file-IO/images/sphx_glr_04-basic-load-file_004.png :class: sphx-glr-multi-img .. rst-class:: sphx-glr-timing **Total running time of the script:** (0 minutes 10.067 seconds) .. _sphx_glr_download_examples_05-file-IO_04-basic-load-file.py: .. only:: html .. container:: sphx-glr-footer sphx-glr-footer-example .. container:: sphx-glr-download sphx-glr-download-jupyter :download:`Download Jupyter notebook: 04-basic-load-file.ipynb <04-basic-load-file.ipynb>` .. container:: sphx-glr-download sphx-glr-download-python :download:`Download Python source code: 04-basic-load-file.py <04-basic-load-file.py>` .. only:: html .. rst-class:: sphx-glr-signature `Gallery generated by Sphinx-Gallery `_