interp_tris_cpp_wrapper: Interpolate values within mesh triangles in C++.

In dfsp-spirit/haze: Smoothing of per-Vertex Data on Triangular Meshes

Interpolate values within mesh triangles in C++.

Description

Interpolate values within mesh triangles in C++.

Usage

interp_tris_cpp_wrapper(
  query_coordinates,
  mesh_vertices,
  nearest_face_vertices,
  pervertex_data,
  iwd_beta = 2
)

Arguments

query_coordinates	nx3 numerical matrix of x,y,z coordinates. These are typically the vertex positions of a second (spherical!) mesh for that you need per-vertex data (e.g., the fsaverage6 mesh).
mesh_vertices	nx3 matrix of x,y,z Cartesian coordinates for the n mesh vertices (of the mesh that has the 'pervertex_data').
pervertex_data	numerical vector, the continuous per-vertex data for the vertices of the mesh.
iwd_beta	scalar double, the beta parameter for the inverse distance weight interpolation with the triangle. See details.

Value

vector with one entry per query coordinate (i.e., nrow(query_coordinates)).

Note

No validation of input data is done, do this yourself before passing values to this function to avoid hard crashes (which happen when junk is passed to C++).

dfsp-spirit/haze documentation built on Feb. 28, 2023, 11:45 p.m.