Two display fixes for the adaptive grid, from field feedback:
- Equipotential contours showed leaf-sized staircase corners on plane
interiors: the potential is now expanded piecewise-LINEARLY from each
leaf's reconstructed gradient instead of constant-per-leaf, and the
default ADAPTIVE_MAX_CELL_UM drops 2 mm -> 1 mm (interior leaves
beyond that buy almost nothing).
- The raster map now overlays the adaptive mesh: boundaries of coarse
leaves draw in darker copper (fine regions stay plain = fully
resolved), with a legend entry. Uniform-grid runs are unchanged.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
janik
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