Grading, mixing, stochastic lattices, and transitions
=====================================================

.. currentmodule:: pyvcad_metamaterials

Material grading
----------------

.. autofunction:: skin_core_tpms

.. autofunction:: per_strut_material

.. autofunction:: distance_field

Mixing structures
-----------------

.. autofunction:: ramp

.. autofunction:: idw_weight

.. autofunction:: mix

.. autofunction:: mix_many

.. autofunction:: overlap

.. autofunction:: zones

Stochastic lattices
-------------------

Delaunay and Voronoi lattices built from seed points inside a host. The graph
builders make struts; the plate builders make walls.

.. autofunction:: sample_points_in_host

.. autoclass:: StochasticPointSet
   :members:

.. autofunction:: stochastic_graph_lattice

.. autofunction:: delaunay_graph_lattice

.. autofunction:: voronoi_graph_lattice

.. autofunction:: stochastic_plate_lattice

.. autofunction:: delaunay_plate_lattice

.. autofunction:: voronoi_plate_lattice

.. autofunction:: random_seeds

Voronoi ribs on a surface
-------------------------

Seeds spread over a triangle surface own the parts of it closest to them; the
boundaries between those cells become ribs or walls.

.. autofunction:: surface_seeds

.. autofunction:: surface_voronoi

.. autofunction:: surface_voronoi_ribs

.. autofunction:: surface_voronoi_plates

Random-to-regular transitions
-----------------------------

.. autodata:: SITE_KINDS
   :no-value:

   Regular point sets accepted by the transition helpers: ``sc``, ``bcc``,
   ``fcc``.

.. autofunction:: voronoi_transition

.. autofunction:: voronoi_tpms_transition

.. autofunction:: voronoi_foam

.. autofunction:: transition_seeds

.. autoclass:: TransitionSeeds

.. autofunction:: lattice_sites

.. autofunction:: cell_map_sites

.. autofunction:: voronoi_unit_cell

.. autofunction:: matched_spacing

Connectivity checks
-------------------

.. autofunction:: check_connectivity

.. autofunction:: require_connected

.. autoclass:: ConnectivityReport
   :members: islands, largest_fraction