Module mesh_param

Expand description

Triangle mesh parameterization (UV unwrapping) and mesh processing utilities.

Implements LSCM and Tutte parameterization, UV quality metrics, mesh subdivision, and mesh repair operations.

Structs§

AtlasChart: A single chart (UV island) for texture atlas packing.
AtlasPackResult: Result of packing multiple charts into a texture atlas.
HarmonicMapParameterization: Harmonic map UV parameterization (also known as harmonic embedding).
LscmParameterization: Least Squares Conformal Maps parameterization.
ParamQualityReport: Summary quality report for a UV parameterization.
ParamTriMesh: A triangle mesh with UV coordinates and normals, used for parameterization.
TutteParameterization: Tutte (barycentric) parameterization.
UvSeam: A UV seam: a set of edges where the UV mapping has a discontinuity.

angle_distortion: Compute the angle distortion per triangle.
boundary_vertices: Return the set of boundary vertices (those on at least one boundary edge).
build_halfedge: Build a half-edge table for a triangle mesh.
fill_holes: Fill holes by fan-triangulating boundary loops.
is_boundary_vertex: Return true if vertex v lies on the boundary of the mesh.
isometric_distortion: Compute the isometric distortion: ratio of singular values of the Jacobian for each triangle.
loop_subdivision: Loop subdivision: split each triangle into 4 sub-triangles.
mean_angle_distortion: Mean angle distortion across all triangles.
midpoint_subdivision: Simple midpoint subdivision: each edge gets a midpoint, 1 triangle -> 4.
pack_atlas_charts: Pack a list of AtlasCharts into a texture atlas using a simple row-based packing.
parameterization_quality_report: Compute a comprehensive quality report for a UV parameterization.
remove_duplicate_vertices: Merge vertices within tol distance and return the cleaned mesh.
texture_distortion: Compute per-triangle texture distortion: ratio of UV area to 3D area.
uv_overlap_check: Count triangles with inverted UV mapping (negative signed area).
uv_stretch: Mean UV distortion across all triangles.
vertex_neighbors: Return all vertices adjacent to vertex_idx.