.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "auto_examples/example_offline_custom_font_file.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download_auto_examples_example_offline_custom_font_file.py>`
        to download the full example code.

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_auto_examples_example_offline_custom_font_file.py:


Example demonstrating offline mode with custom font file paths.
This addresses issue #112 where offline mode would fail when specifying individual files.

.. GENERATED FROM PYTHON SOURCE LINES 5-103

.. code-block:: Python


    import numpy as np
    import datamapplot
    import tempfile
    import json
    from pathlib import Path

    # Generate example data
    np.random.seed(42)
    n_samples = 1000
    n_clusters = 5

    # Create cluster centers
    centers = np.random.randn(n_clusters, 2) * 10

    # Generate data points around centers
    data_coords = []
    labels = []

    for i, center in enumerate(centers):
        n_points = n_samples // n_clusters
        cluster_data = np.random.randn(n_points, 2) + center
        data_coords.append(cluster_data)
        labels.extend([f"Cluster {i+1}"] * n_points)

    # Add some noise points
    noise_points = np.random.uniform(-15, 15, (n_samples // 10, 2))
    data_coords.append(noise_points)
    labels.extend(["Unlabelled"] * len(noise_points))

    # Combine all data
    data_coords = np.vstack(data_coords)
    labels = np.array(labels)

    print("Creating example with custom font cache file...")

    # Create a temporary directory for demonstration
    with tempfile.TemporaryDirectory() as temp_dir:
        # Path for our custom font cache
        custom_font_file = Path(temp_dir) / "my_custom_fonts.json"
    
        # Create a minimal font cache (in practice, you'd use dmp_offline_cache to generate this)
        font_cache = {
            "Roboto": [{
                "style": "normal",
                "weight": "400", 
                "unicode_range": "",
                "type": "woff2",
                "content": "d09GMgABAAAAAAIAAA4AAAAAA..."  # Truncated for example
            }]
        }
    
        with open(custom_font_file, 'w') as f:
            json.dump(font_cache, f)
    
        print(f"Created custom font cache at: {custom_font_file}")
    
        # Also need a JS cache file for offline mode
        js_cache_file = Path(temp_dir) / "my_js_cache.json"
        js_cache = {
            "https://unpkg.com/deck.gl@latest/dist.min.js": {
                "encoded_content": "ZGVja2dsX2NvbnRlbnQ=",  # Placeholder
                "name": "unpkg_com_deck_gl_latest_dist_min_js"
            }
        }
    
        with open(js_cache_file, 'w') as f:
            json.dump(js_cache, f)
    
        try:
            # Create interactive plot with custom font file
            fig = datamapplot.create_interactive_plot(
                data_coords,
                labels,
                title="Offline Mode with Custom Font File",
                sub_title="Using specified font cache file instead of default location",
                font_family="Roboto",
                inline_data=False,
                offline_mode=True,
                offline_mode_font_data_file=str(custom_font_file),
                offline_mode_js_data_file=str(js_cache_file),
                offline_data_path=temp_dir / "plot_data"
            )
        
            # Save the plot
            output_file = Path(temp_dir) / "offline_custom_font_plot.html"
            fig.save(str(output_file))
        
            print(f"\nSuccess! Plot saved to: {output_file}")
            print("\nThis demonstrates the fix for issue #112:")
            print("- Offline mode now correctly uses specified font file paths")
            print("- No longer defaults to potentially non-existent cache locations")
        
        except Exception as e:
            print(f"\nError: {e}")
            print("\nNote: For a real use case, you would:")
            print("1. Use 'dmp_offline_cache' to create proper font/JS cache files")
            print("2. Store them in your desired location")
            print("3. Reference them using the offline_mode_*_data_file parameters")

.. _sphx_glr_download_auto_examples_example_offline_custom_font_file.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download Jupyter notebook: example_offline_custom_font_file.ipynb <example_offline_custom_font_file.ipynb>`

    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download Python source code: example_offline_custom_font_file.py <example_offline_custom_font_file.py>`

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: example_offline_custom_font_file.zip <example_offline_custom_font_file.zip>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_