Creates a small renderer- and source-neutral lookup table for validating
external data joins against spatial features. Jurisdiction-specific parsing
and alias rules remain application responsibilities.
Usage
spatial_join_index(x, id_col, name_col = NULL, parent_col = NULL)
Arguments
- x
Spatial or ordinary data frame.
- id_col
Stable unique feature identifier column.
- name_col
Optional display-name column.
- parent_col
Optional parent identifier column.
Value
A spatial_join_index data frame with feature_id, optional
feature_name and parent_id, and the original feature row.
