meshcellstats.h File Reference

#include "meshresult.h"
#include <QHash>
#include <QPair>

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Classes
struct	mesh::CellAreaStats
	Min / max / mean / median of triangle areas (project CRS units²). More...
struct	mesh::QuadStats
	Quadrilateral-cell statistics (workplans/TRI_QUAD_MESHING_PLAN §5): count, interior-angle range and bed non-planarity. More...
struct	mesh::CflStats
	The 2D marcher's CFL characteristic length, per cell and summarised. More...

Namespaces
namespace	mesh

Typedefs
using	mesh::EdgeVertexPair = QPair< int, int >
	Undirected mesh edge, as (min, max) vertex indices.

Functions
double	mesh::triangleArea (const MeshResult &mesh, int tri)
	Unsigned area of triangle tri (|cross| / 2), in project CRS units². Returns 0 for an out-of-range triangle or one referencing out-of-range vertices.
QPointF	mesh::cellCentroid (const MeshResult &mesh, int cell)
	Area centroid of cell cell (mesh::cellGeom — the vertex mean for a triangle, the area-weighted sub-triangle centroid for a quad). A null point for an out-of-range cell.
QuadStats	mesh::computeQuadStats (const MeshResult &mesh)
CellAreaStats	mesh::computeCellAreaStats (const MeshResult &mesh)
	Compute cell-area statistics over all triangles in mesh.
QHash< EdgeVertexPair, QVector< int > >	mesh::buildEdgeTriangles (const MeshResult &mesh)
	Map every undirected edge to the triangles incident on it.
QVector< double >	mesh::computeCellLchar (const MeshResult &mesh)
	Per-cell L_char for mesh, indexed like mesh.triangles. Cells with invalid indices get 0.
CflStats	mesh::computeCflStats (const MeshResult &mesh, int ltsTiers=4)
	Summarise computeCellLchar. ltsTiers mirrors the engine's [2D_OPTIONS] LTS_TIERS (1..8, default 4).

Detailed Description

Author

Caleb Buahin caleb.nosp@m..bua.nosp@m.hin@g.nosp@m.mail.nosp@m..com

Date

2026

License\n GPL-3.0-or-later

MESH_DECOUPLED_1D2D_REMAP_PLAN Part A — cell-area statistics for the mesh layer's Metadata tab. Free function, no layer dependency, so it is unit-testable against a bare MeshResult.