Aggregate vector layer to H3 grid

Creates an H3 grid covering the vector layer extent and aggregates vector features and attribute values into its cells.

Inputs:

• Input vector layer. GDAL-compatible vector dataset;

• Minimal H3 Zoom (H3 zoom levels are valid in range 0-15);

• Maximal H3 Zoom (H3 zoom levels are valid in range 0-15);

• Aggregation attribute - numeric attribute used for aggregation. Not required for grid creation, feature count or geometry sum;

• Feature spatial handling mode, select one from the list:

  • Fully inside (FULLY_INSIDE) - include only features completely inside an H3 cell.

  • Intersects (INTERSECTS) - include every feature intersecting an H3 cell.

  • Split by H3 grid (SPLIT) - split line or polygon features by the H3 grid and distribute attribute values proportionally to fragment length or area where applicable;

• Aggregation method. How to aggregate vector features or attribute values: - Create grid only (EMPTY) - Count features (COUNT) - Sum length or area (GEOMETRY_SUM) - Sum (SUM) - Mean (MEAN) - Median (MEDIAN) - Min (MIN) - Max (MAX)

• Output field name - name of the output aggregation field. If empty, aggregated_value is used;

• Split zoom levels - if checked, cells of each H3 zoom level will be saved to a separate layer.

Outputs:

• GeoPackage containing H3 grid.

Example:

Try the tool in action

1. Click on the Demo button above the tool form. The fields are filled in with demo values.

2. Click on the Run button.