NEWS

blueterra 0.2.0

Corrected map-unit annular BPI kernels to use independent x and y cell dimensions, and require a projected CRS for radii expressed in map units.
Made normalized BPI return NA for zero-variance or unavailable focal neighborhoods rather than an accidental NaN.
Made exact = TRUE polygon summaries coverage-fraction weighted for mean, population standard deviation, median, sum, and effective cell count; single-layer exact summaries now preserve the raster layer name.
Corrected polygon summaries and isobath-corridor extraction for vectors with no attribute table by assigning stable zone identifiers.
Added transect orientation-resultant metadata and documented its use as a concentration indicator for surface-derived directions.
Recorded corridor buffer distance, nominal full width, and independent overlap policy in corridor outputs.
Added regression tests for annular BPI geometry and CRS handling, zero variance, focal support, known spatial summaries, transect geometry and reliability, isobath corridors, custom-layer geometry, and unmatched metric catalog entries.

Initial development version.
Added raster input, validation, preparation, terrain metrics, process groups, transects, isobath corridors, summaries, modeling helpers, plotting helpers, synthetic example data, tests, README, and vignettes.
Added reduced real bathymetry examples from the southwest Puerto Rico shelf margin near La Parguera, Puerto Rico, plus sampling rectangles.
Improved hillshade-supported terrain maps, site-location documentation, and scientific examples for README, vignettes, and visual proof.
Added surface-oriented transect defaults, richer cross-section and PCA plots, citation metadata, and custom metric/process-group extension helpers.