tilepyramidlayer.h File Reference

Shared tile-pyramid machinery for tiled raster layers (GISRasterLayer, WMTSLayer): a thread-safe tile cache that stores each tile with its geographic extent, plus a grid-agnostic coarser-tile fallback so a missing tile paints as a blurry stand-in cut from a cached coarser tile instead of a blank hole. More...

#include "layers/openswmmvislayer.h"
#include <QCache>
#include <QHash>
#include <QImage>
#include <QMutex>
#include <QPair>
#include <QRectF>
#include <QString>

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Classes
class	TilePyramidLayer
	Base class owning the tile cache + parent-fallback compositor shared by tile-pyramid layers. More...
struct	TilePyramidLayer::TileDraw
	A resolved per-tile draw: paint src (a sub-rect of img, in image pixels with row 0 = the tile extent's yMax edge) into the tile's destination footprint. exact is false when the image is a coarser-tile stand-in. More...

Detailed Description

Shared tile-pyramid machinery for tiled raster layers (GISRasterLayer, WMTSLayer): a thread-safe tile cache that stores each tile with its geographic extent, plus a grid-agnostic coarser-tile fallback so a missing tile paints as a blurry stand-in cut from a cached coarser tile instead of a blank hole.

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