Differential Operators

Two different formalisms for doing geometry processing on meshes.

iskra.dec

d_01(faces[, dtype])
d_10(faces[, dtype])
d_12(faces[, dtype])
d_21(faces[, dtype])
hodge_0(vertices, faces)
hodge_0_intrinsic(edge_lengths, faces, ...)
hodge_0_intrinsic_inv(edge_lengths, faces, ...)
hodge_0_inv(vertices, faces)
hodge_1(vertices, faces[, clamp_min])
hodge_1_intrinsic(edge_lengths, face_to_edge)
hodge_1_intrinsic_inv(edge_lengths, face_to_edge)
hodge_1_inv(vertices, faces[, clamp_min])
hodge_2(vertices, faces)
hodge_2_intrinsic(edge_lengths, face_to_edge)
hodge_2_intrinsic_inv(edge_lengths, face_to_edge)
hodge_2_inv(vertices, faces)
laplacian(vertices, faces[, clamp_min])
laplacian_from_weights(weights, faces)
laplacian_intrinsic(edge_lengths, faces, ...)

iskra.fem

grad(vertices, faces[, stack])	Finite element gradient matrix.
grad_edges(vertices, edges)	Finite element gradient matrix for edges.
grad_to_div(g, tri_areas)
grad_triangle_2d(vertices, faces)	Finite element gradient matrix for 2d triangles.
grad_triangle_3d(vertices, faces)	Finite element gradient matrix for 3d triangles.
laplacian(vertices, faces[, weight_type])
laplacian_intrinsic(edge_lengths, ...[, ...])
mass(vertices, faces)
mass_intrinsic(edge_lengths, faces, ...)
mass_intrinsic_inv(edge_lengths, faces, ...)
mass_inv(vertices, faces)