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<div>Hi Linda,</div>
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<div>my suggestions inline.</div>
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<div>Regards,<br />
Francesco</div>
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<div>On 1 Aug 2025 at 12:11 +0200, Linda Karlovská via pygeoapi <<a href="mailto:pygeoapi@lists.osgeo.org">pygeoapi@lists.osgeo.org</a>>, wrote:<br />
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<div>Hi everyone,</div>
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<div>I'm working with vector tiles on cadastral data using a custom tile matrix set (specifically one based on EPSG:5514 — see https://github.com/OpenGeoLabs/tiles-cz/blob/main/03-tile-matrix-set.md, it's the second TMS listed, though only in Czech).</div>
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<div>While exploring the pygeoapi code, I noticed that two standard tile matrix sets are currently hardcoded here:<br />
<a class="" href="https://github.com/geopython/pygeoapi/blob/master/pygeoapi/models/provider/base.py">https://github.com/geopython/pygeoapi/blob/master/pygeoapi/models/provider/base.py</a></div>
<div>As I understand it correctly, there's currently no built-in way in pygeoapi to register or load additional tile matrix sets dynamically.</div>
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<div><span class="spark-text-indent"> </span><span class="spark-text-indent"> </span>Can you open an issue for this feature? It would be useful as other OGC API - Tiles implementations support that</div>
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<div>To improve flexibility, I'd like to propose a small refactor and extension:</div>
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<li>Move the two hardcoded TMSs into separate JSON files (e.g., <code>WorldCRS84Quad.json</code>) in a new folder such as <code>pygeoapi/models/provider/tilematrixsets/</code>.</li>
<li>Add functionality to allow users to define their own custom tile matrix sets by simply adding a JSON file to that directory (e.g., for my use case, <code>S-JTSKQuad.json</code>).</li>
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<div>Does this direction make sense from the perspective of the current architecture?</div>
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<div><span class="spark-text-indent"> </span><span class="spark-text-indent"> </span> I'd rather follow the pygeoapi plugin pattern to support custom injected tile matrixes </div>
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And are there any things I should keep in mind when implementing this change?</div>
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<div><span class="spark-text-indent"> </span><span class="spark-text-indent"> </span>I would use a pygeoapi plugin for your use case with a custom tile matrix</div>
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<div>Thanks a lot for your time and feedback!</div>
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<div>Best regards,<br />
Linda Karlovska</div>
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