meshpatch.h

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#ifndef OPENSWMMVIS_MESH_MESHPATCH_H
#define OPENSWMMVIS_MESH_MESHPATCH_H
 
#include "mesh/meshresult.h"
 
#include <QPair>
#include <QPointF>
#include <QPolygonF>
#include <QString>
#include <QVector>
 
namespace mesh {
 
struct StructuredPatch
{
    QVector<QPointF> corners;   
    int     n = 0, m = 0;
    QString tag;
};
 
struct SweptPatch
{
    QVector<QPointF> centreline;  
    double  width  = 0.0;
    int     across = 0;
    double  along  = 0.0;
    QString tag;
};
 
struct PatchMesh
{
    QVector<QPointF>        xy;
    QVector<MeshTriangle>   quads;             
    QVector<QPair<int,int>> boundarySegments;  
    QString                 tag;
};
 
QString validate(const StructuredPatch &p);
QString validate(const SweptPatch &p);
QString validate(const PatchMesh &pm);
 
PatchMesh makeTransfinitePatch(const StructuredPatch &p, QString *err = nullptr);
 
PatchMesh makeSweptPatch(const SweptPatch &p, QString *err = nullptr);
 
// ── Quad-region redesign (QUAD_MESHING_REDESIGN_PLAN_2026-09-06.md §4.2) ───
 
PatchMesh makeTransfinitePatch(const QVector<QVector<QPointF>> &sides, int n, int m,
                               const QString &tag, QString *err = nullptr);
 
PatchMesh makeMappedPatch(const QPolygonF &ring, const QVector<int> &corners, double h,
                          const QString &tag, QString *err = nullptr);
 
} // namespace mesh
 
#endif // OPENSWMMVIS_MESH_MESHPATCH_H