Abstract base class for all map layers displayed in the MapCanvas. More...

#include <QByteArray>
#include <QMap>
#include <QObject>
#include <QPaintDevice>
#include <QPainter>
#include <QPair>
#include <QRectF>
#include <QString>
#include <QVector>
#include <QUuid>
#include <cmath>
#include <memory>
#include <vector>
#include "map/mapextent.h"
#include "render/temporalspec.h"
#include "render/labelconfig.h"
#include "render/maskspec.h"
#include "render/auxiliarystoragespec.h"
#include "render/joinspec.h"
#include "render/diagramspec.h"

Include dependency graph for openswmmvislayer.h:

Classes
class	OpenSWMMVisLayer
	Abstract base class for all layers displayed in the MapCanvas. More...

Namespaces
namespace	openswmmvis

namespace	openswmmvis::ui

namespace	OpenSWMM

namespace	OpenSWMM::Render

Typedefs
using	BasemapHttpHeaders = QMap< QString, QString >

Functions
QRectF	snapTileRectToDevicePx (double pxLeft, double pyTop, double pxRight, double pyBottom, qreal dpr)
	Snap a tile's logical-pixel rect to device pixel boundaries.

qreal	painterDevicePixelRatio (const QPainter *p)

Detailed Description

Abstract base class for all map layers displayed in the MapCanvas.

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

Typedef Documentation

◆ BasemapHttpHeaders

using BasemapHttpHeaders = QMap<QString, QString>

Function Documentation

◆ painterDevicePixelRatio()

qreal painterDevicePixelRatio ( const QPainter * p )

inline

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◆ snapTileRectToDevicePx()

QRectF snapTileRectToDevicePx	(	double	pxLeft,
		double	pyTop,
		double	pxRight,
		double	pyBottom,
		qreal	dpr
	)

inline

Snap a tile's logical-pixel rect to device pixel boundaries.

Adjacent raster tiles that share a logical boundary (e.g. tile N's right edge = tile N+1's left edge in source-extent math) still produce visible seams under QPainter's Source-Over compositing whenever the boundary falls at a sub-pixel position: each tile contributes a partial-alpha pixel on the shared column and the two contributions don't cleanly sum to opaque.

Snapping every tile corner to the same integer device pixel guarantees consecutive tiles share an exact column — no partial alpha on the seam, no visible discontinuity. We snap in device units (not logical) because the painter is in logical coords while the QImage is at full DPR; a logical-integer snap still leaves sub-device-pixel positions on Retina (DPR=2).

Returns logical-coord QRectF (corners at exact device-pixel positions) suitable for QPainter::drawImage with a painter in logical coordinates.

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Classes

Namespaces