Convert a grouped layout to a dragmapr editing state — as_dragmapr

Produces a dragmapr::dragmapr_state() – the shared editorial composition contract – from a grouped_exploded_map. Unlike as_dragmapr(), which bundles geometry and absolute anchors into a handoff list, this emits the geometry-free state that the interactive editor and static renderers consume: the exploded anchors (anchor_x/anchor_y) are converted to the metre deltas (dx_m/dy_m) relative to the current region centroids that dragmapr expects, and the projected CRS plus a provenance geometry_id are recorded so the state can be reapplied safely in a later session.

Usage

as_dragmapr_state(result, geometry_id = NULL, level = NULL)

Arguments

result: A grouped_exploded_map.
geometry_id: Optional single string identifying the source geometry. Defaults to the layout label in result$diagnostics$label.
level: Optional geography-level label. Defaults to the region column.

Value

A dragmapr_state (see dragmapr::dragmapr_state()).

Details

Keep layout (the computed geometry + diagnostics, i.e. result) and state (this editorial overlay) separate. The layout can be recomputed freely while the state preserves manual edits, which is what makes the compute -> compose -> render workflow reproducible.