contourchain.h File Reference

#include <QLineF>
#include <QMultiHash>
#include <QPolygonF>
#include <QVector>
#include <cmath>

Include dependency graph for contourchain.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Namespaces
namespace	OpenSWMM
namespace	OpenSWMM::Contour

Functions
QVector< QPolygonF >	OpenSWMM::Contour::chainIsoSegments (const QVector< QLineF > &segs, double quantum)
	Chain unordered iso-line segments into polylines.

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

VS.8 — chain unordered marching-triangles segments of ONE iso-level into polylines by matching quantised endpoints. The result drives along-line label placement (one label every N screen pixels). Shared by the QPainter isoline pass (SWMM2DResultsGraphicsItem) and the QSG renderer (SWMM2DResultsQSGRenderer).