meshsubmap.cpp File Reference

#include "mesh/meshsubmap.h"
#include "mesh/meshquadregion.h"
#include <QHash>
#include <algorithm>
#include <cmath>

Include dependency graph for meshsubmap.cpp:

Namespaces
namespace	mesh

Functions
bool	mesh::ringIsRectilinear (const QPolygonF &ring, double tolDeg, double *frameAngleDeg)
	True when every edge of the (normalised) ring is parallel to one of two perpendicular axes within tolDeg. frameAngleDeg receives the frame rotation when non-null.
PatchMesh	mesh::makeSubmappedPatch (const QPolygonF &ring, double h, const QString &tag, QString *err=nullptr, double tolDeg=2.0)
	Build the submapped patch. On failure returns an empty PatchMesh and sets *err ("not rectilinear", "spacing must be > 0", "degenerate ring").

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

Grid-based submapping of a rectilinear ring (QUAD_MESHING_REDESIGN_PLAN §4.3, reduced scope): local frame from the length-weighted mean edge direction (angle doubling trick on 4φ), axis snapping of every edge run, grid bands between the distinct local coordinates split at spacing h, and one rectangle per grid cell whose centre lies inside the ring.