gracecluvohio opened a new pull request, #3744:
URL: https://github.com/apache/texera/pull/3744
- Purpose of the PR:
- Texera doesn't have any map operators, limiting its visualization of
geographical data. Choropleth maps use differences in shading or color to
dynamically show differences in properties or quantities between regions. For
example, below is a choropleth map showing life expectancy in 2007 across
different countries (generated by my new operator!)
- <img width="651" height="269" alt="Screenshot 2025-09-18 at 3 07 03 AM"
src="https://github.com/user-attachments/assets/0ebd78aa-818d-4688-8cdd-609c67cebe76";
/>
- Choropleth maps are simple to understand yet powerful. Because of this
they are an excellent first step for geographical visualizations in Texera.
- Summary of changes:
- Adding ChoroplethMapOpDesc.scala with the operator logic
- Adding an icon for the operator
- Registering the operator in the logical and physical layers in the
LogicalOp.scala
- Future Work
- adding option to change region level (right now it is by country, but
could add by state for US-specific)
- adding option to focus on specific region
- Screenshots
Choropleth map UI
<img width="1241" height="913" alt="Screenshot 2025-09-18 at 2 57 05 AM"
src="https://github.com/user-attachments/assets/eda2df3e-75f3-42f5-a942-82d1bf60981a";
/>
Results
<img width="1238" height="914" alt="Screenshot 2025-09-18 at 2 56 10 AM"
src="https://github.com/user-attachments/assets/0f1d8579-e12f-4a71-a249-e59f52552cc5";
/>
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