meshquadregion.h

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#ifndef OPENSWMMVIS_MESH_MESHQUADREGION_H
#define OPENSWMMVIS_MESH_MESHQUADREGION_H
 
#include <QPointF>
#include <QPolygonF>
#include <QString>
#include <QVector>
 
namespace mesh {
 
enum class QuadRegionMode
{
    Auto,          
    Mapped,        
    Submapped,     
    Free,          
    TrianglesOnly  
};
 
struct QuadRegion
{
    QPolygonF      ring;                 
    QVector<QPolygonF> holes;
    bool           isBackground = false;
    QuadRegionMode mode = QuadRegionMode::Auto;
    double spacing   = 0.0;              
    double aspectMax = 2.0;              
    bool   hasAlignAngle = false;        
    double alignAngleDeg = 0.0;
    QVector<QPointF> alignGuide;         
    QVector<int>     corners;            
    QString tag;                         
};
 
QPolygonF normalizeRingCCW(const QPolygonF &ring);
 
double ringSignedArea(const QPolygonF &ring);
 
bool pointInRing(const QPolygonF &ring, const QPointF &p);
 
bool pointInRegion(const QPolygonF &ring, const QVector<QPolygonF> &holes, const QPointF &p);
 
bool ringIsSimple(const QPolygonF &ring);
 
QString validateQuadRegion(const QuadRegion &r,
                           const QVector<QPolygonF> &domains,
                           const QVector<QPolygonF> &holes);
 
QString validateQuadRegionsDisjoint(const QVector<QuadRegion> &regions);
 
QuadRegionMode classifyQuadRegion(const QPolygonF &ring, QVector<int> *corners,
                                  double cornerTolDeg = 25.0,
                                  double rectilinearTolDeg = 2.0);
 
QPolygonF resampleRing(const QPolygonF &ring, double h, double keepTurnDeg = 0.0);
 
double ringTurnDeg(const QPolygonF &ring, int i);
 
} // namespace mesh
 
#endif // OPENSWMMVIS_MESH_MESHQUADREGION_H