A map layer that fetches tiled imagery from an OGC WMTS service. More...

#include <wmtslayer.h>

Inheritance diagram for WMTSLayer:

Collaboration diagram for WMTSLayer:

Signals
void	capabilitiesFetched (const WMTSServiceInfo &info)

void	capabilitiesError (const QString &errorMessage)

void	tilesUpdated ()

void	activeLayerIdChanged (const QString &id)

void	activeTileMatrixSetChanged (const QString &id)

void	activeStyleChanged (const QString &style)

void	imageFormatChanged (const QString &fmt)

void	tileCacheMaxSizeChanged (int maxTiles)

void	basemapRenderParamsChanged ()

Signals inherited from OpenSWMMVisLayer
void	nameChanged (const QString &newName)

void	layerTypeChanged (OpenSWMMVisLayerType newType)

void	visibilityChanged (bool visible)

void	opacityChanged (double opacity)

void	srsChanged (SpatialReferenceSystem *newSRS)

void	extentChanged (const MapExtent &newExtent)

void	childrenChanged ()

void	repaintRequested ()

void	temporalSpecChanged (const OpenSWMM::Render::TemporalSpec &spec)

void	maskSpecChanged (const OpenSWMM::Render::MaskSpec &spec)

void	auxStorageSpecChanged (const OpenSWMM::Render::AuxiliaryStorageSpec &spec)

void	joinsChanged (const QVector< OpenSWMM::Render::JoinSpec > &joins)

void	diagramSpecChanged (const OpenSWMM::Render::DiagramSpec &spec)

void	labelConfigChanged ()

Public Member Functions
	WMTSLayer (const QUrl &serviceUrl, OpenSWMMVisWorkspace *parent=nullptr)

	~WMTSLayer () override

QUrl	serviceUrl () const

WMTSServiceInfo	serviceInfo () const

bool	capabilitiesReady () const

QString	sourceDescription () const override
	Human-readable source of this layer: a file path, a service URL, or a description for in-memory / derived layers.

void	fetchCapabilities ()
	Asynchronously fetches and parses the GetCapabilities document.

void	setServiceInfo (const WMTSServiceInfo &info)
	Injects an already-fetched service info (e.g. from a connection dialog) so the layer can render immediately without a second GetCapabilities round-trip.

QString	activeLayerId () const

void	setActiveLayerId (const QString &id)

QString	activeTileMatrixSet () const

void	setActiveTileMatrixSet (const QString &id)

QString	activeStyle () const

void	setActiveStyle (const QString &style)

QString	imageFormat () const

void	setImageFormat (const QString &fmt)

int	tileSize () const

int	tileCacheMaxSize () const

void	setTileCacheMaxSize (int maxTiles)
	Sets the maximum number of tiles held in the in-memory cache.

bool	isRasterLayer () const override
	Returns true for layers that render into a raster buffer (WMS, WMTS, GISRaster) rather than populating QGraphicsItems.

bool	isBasemapLayer () const override
	Returns true for world-spanning basemap layers (XYZ tile providers, WMS/WMTS services covering the whole world) that should NOT be included when computing the data-driven full extent.

void	fetchCache (const MapExtent &extent, const QSize &viewportSize, const SpatialReferenceSystem *srs) override
	Triggers any asynchronous (or synchronous) tile/data fetch needed to populate this layer's internal cache for the given view state.

void	render (QPainter painter, const MapExtent &extent, const QSize &imageSize, const SpatialReferenceSystem srs) override
	Renders this layer's content directly into `painter`.

void	populateScene (QGraphicsScene scene, const MapExtent &canvasExtent, const SpatialReferenceSystem canvasSRS) override
	Creates / updates QGraphicsItems representing this layer in the scene.

void	refreshScene (QGraphicsScene scene, const MapExtent &canvasExtent, const SpatialReferenceSystem canvasSRS) override
	Smart scene refresh — updates existing items instead of destroying and recreating.

void	depopulateScene (QGraphicsScene *scene) override
	Removes all QGraphicsItems belonging to this layer from the scene.

void	onCanvasCRSChanged (const SpatialReferenceSystem *newCanvasSRS) override
	Called when the user changes the canvas CRS so layers can pre-compute any CRS-dependent transform caches.

void	fetchTileIfNeeded (const QString &cacheKey, const QUrl &tileUrl, const MapExtent &tileExtent, int level)

QUrl	buildTileUrlPublic (const QString &layerId, const QString &style, const QString &tileMatrixSet, const WMTSTileMatrix &matrix, int col, int row) const

const WMTSTileMatrix *	selectTileMatrixPublic (const WMTSTileMatrixSet &tms, const MapExtent &canvasExtent, int pixelWidth) const

const OpenSWMM::Render::BasemapRenderParams &	basemapRenderParams () const

void	setBasemapRenderParams (const OpenSWMM::Render::BasemapRenderParams &p)

Public Member Functions inherited from TilePyramidLayer
	TilePyramidLayer (OpenSWMMVisWorkspace *parent=nullptr)

	~TilePyramidLayer () override

Public Member Functions inherited from OpenSWMMVisLayer
	OpenSWMMVisLayer (OpenSWMMVisWorkspace *parent)

	OpenSWMMVisLayer (const QString &name="Unlabeled Layer", OpenSWMMVisWorkspace *parent=nullptr)

virtual	~OpenSWMMVisLayer ()

QString	layerId () const
	Returns the layer's immutable unique identifier (UUID).

QString	name () const
	Returns the user-visible name of this layer.

void	setName (const QString &name)
	Sets the user-visible name.

OpenSWMMVisLayerType	layerType () const
	Returns the layer type discriminator.

bool	isVisible () const
	Returns true when this layer should be drawn.

void	setVisible (bool visible)
	Shows or hides this layer.

double	opacity () const
	Returns the layer opacity in the range [0.0, 1.0]. 0.0 = fully transparent; 1.0 = fully opaque.

void	setOpacity (double opacity)
	Sets the layer opacity. Values are clamped to [0.0, 1.0].

SpatialReferenceSystem *	srs () const
	Returns the spatial reference system for this layer, or nullptr if the layer has no known CRS.

void	setSRS (SpatialReferenceSystem *srs, bool ownsSRS=false)
	Sets (or replaces) the CRS for this layer.

QString	crsDescription () const
	Returns a human-readable summary of this layer's CRS for display in the Properties window.

MapExtent	extent () const
	Returns the layer extent in the layer's own CRS.

void	setExtent (const MapExtent &extent)
	Sets the layer spatial extent (in the layer's CRS).

virtual QVector< QPair< QString, QString > >	extendedMetadata () const
	Ordered key→value pairs of TYPE-SPECIFIC metadata, rendered by the Metadata tab below the common block the dialog builds itself.

void	setViewportSize (int w, int h)
	Called by MapCanvas before refreshScene so layers can request the correct pixel dimensions for tile/image requests.

int	viewportWidth () const

int	viewportHeight () const

QVector< OpenSWMMVisLayer * >	children () const
	Returns the ordered list of child layers.

double	layerZValue () const
	Returns the z-value base assigned to this layer by the canvas. Items within the layer should use z-values relative to this.

virtual std::vector< std::unique_ptr< openswmmvis::ui::ILayerStyleSubject > >	styleSubjects ()
	Slice U-2 — return the styleable subjects for the unified LayerStyleDialog.

void	setLayerZValue (double z)
	Called by the canvas to set this layer's z-value band.

virtual OpenSWMM::Render::IFeatureRenderer *	renderer () const

virtual void	setRenderer (std::unique_ptr< OpenSWMM::Render::IFeatureRenderer >)

virtual OpenSWMM::Render::RuleList *	ruleList ()

virtual const OpenSWMM::Render::RuleList *	ruleList () const

const OpenSWMM::Render::TemporalSpec &	temporalSpec () const

void	setTemporalSpec (const OpenSWMM::Render::TemporalSpec &spec)

const OpenSWMM::Render::LabelConfig &	labelConfig () const

virtual void	setLabelConfig (const OpenSWMM::Render::LabelConfig &cfg)

const OpenSWMM::Render::MaskSpec &	maskSpec () const

void	setMaskSpec (const OpenSWMM::Render::MaskSpec &spec)

const OpenSWMM::Render::AuxiliaryStorageSpec &	auxStorageSpec () const

void	setAuxStorageSpec (const OpenSWMM::Render::AuxiliaryStorageSpec &spec)

const QVector< OpenSWMM::Render::JoinSpec > &	joins () const

void	setJoins (const QVector< OpenSWMM::Render::JoinSpec > &joins)

const OpenSWMM::Render::DiagramSpec &	diagramSpec () const

void	setDiagramSpec (const OpenSWMM::Render::DiagramSpec &spec)

OpenSWMMVisWorkspace *	workspace () const

void	setBasicAuth (const QString &username, const QString &password)
	Sets HTTP Basic authentication for all subsequent network requests.

void	setHttpHeaders (const BasemapHttpHeaders &headers)
	Sets arbitrary extra HTTP headers applied to every request.

BasemapHttpHeaders	httpHeaders () const

Properties
QUrl	serviceUrl

QString	activeLayerId

QString	activeTileMatrixSet

QString	activeStyle

QString	imageFormat

int	tileSize

int	tileCacheMaxSize

Properties inherited from OpenSWMMVisLayer
QString	Name

bool	Visible

double	Opacity

QString	LayerId

OpenSWMMVisLayerType	LayerType

QVector< OpenSWMMVisLayer * >	Children

QString	CRS

Additional Inherited Members
Public Types inherited from OpenSWMMVisLayer
enum	OpenSWMMVisLayerType { SWMMDefaultLayer = 0 , SWMMModelLayer = 1 , SWMMResultsLayer = 2 , SWMMGISLayer = 3 , SWMMVectorLayer = 4 , SWMMRasterLayer = 5 , SWMMImageryLayer = 6 , SWMMTabularDataLayer = 7 , SWMMTabularyTimeSeriesLayer = 8 , SWMMSubProjectLayer = 9 , SWMMWMSLayer = 10 , SWMMWMTSLayer = 11 , SWMM2DMeshLayer = 12 , SWMM2DResultsLayer = 13 , SWMMAnnotationLayer = 14 , SWMMFeatureLayer = 15 }
	Discriminator for the concrete layer class. More...

Protected Member Functions inherited from TilePyramidLayer
void	cacheTile (const QString &key, const QImage &img, const MapExtent &extent, int level)
	Insert a produced tile (no-op for null images). `extent` is the tile's geographic extent in the subclass's tile CRS; `level` is the subclass's pyramid-level tag (metadata only — the fallback search is extent-based).

bool	isTileCached (const QString &key) const
	True when `key` holds a non-null cached tile. Does not promote the entry in the LRU.

QImage	cachedTileImage (const QString &key) const
	The cached image for `key`, or a null QImage.

void	clearTiles ()
	Drop every cached tile (style / CRS / source change).

void	setTileCacheCapacity (int maxTiles)

int	tileCacheCapacity () const

bool	resolveTileForDraw (const QString &key, const MapExtent &tileExtent, double maxSpanRatio, TileDraw &out) const
	Resolve the image + source sub-rect that should paint the tile `key` with geographic extent `tileExtent`.

Protected Member Functions inherited from OpenSWMMVisLayer
bool	addChild (OpenSWMMVisLayer *child)

bool	removeChild (OpenSWMMVisLayer *child)

void	setLayerType (OpenSWMMVisLayerType type)

Protected Attributes inherited from OpenSWMMVisLayer
QByteArray	m_authHeader
	"Basic <base64>" or empty

BasemapHttpHeaders	m_httpHeaders
	arbitrary headers (incl. "referer")

Detailed Description

A map layer that fetches tiled imagery from an OGC WMTS service.

Implements the OGC Web Map Tile Service protocol using Qt's QNetworkAccessManager — no QGIS dependency.

Tiles are fetched in parallel, cached in the TilePyramidLayer base (keyed by "layerId/style/tileMatrixSet/zoom/col/row", each with its tile-CRS extent), and painted synchronously in render(); a tile still in flight paints as a sub-rect of the nearest cached coarser tile instead of a blank hole. Stale cache entries are automatically evicted when the cache exceeds its maximum size.

Supports both RESTful (KVP) and template URL tile addressing.

Constructor & Destructor Documentation

◆ WMTSLayer()

WMTSLayer::WMTSLayer	(	const QUrl &	serviceUrl,
		OpenSWMMVisWorkspace *	parent = `nullptr`
	)

explicit

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◆ ~WMTSLayer()

WMTSLayer::~WMTSLayer ( )

override

Member Function Documentation

◆ activeLayerId()

QString WMTSLayer::activeLayerId ( ) const

◆ activeLayerIdChanged

void WMTSLayer::activeLayerIdChanged ( const QString & id )

signal

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◆ activeStyle()

QString WMTSLayer::activeStyle ( ) const

◆ activeStyleChanged

void WMTSLayer::activeStyleChanged ( const QString & style )

signal

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◆ activeTileMatrixSet()

QString WMTSLayer::activeTileMatrixSet ( ) const

◆ activeTileMatrixSetChanged

void WMTSLayer::activeTileMatrixSetChanged ( const QString & id )

signal

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◆ basemapRenderParams()

const OpenSWMM::Render::BasemapRenderParams & WMTSLayer::basemapRenderParams ( ) const

inline

Slice X.22 — shared basemap render adjustments.

◆ basemapRenderParamsChanged

void WMTSLayer::basemapRenderParamsChanged ( )

signal

Slice X.22 — fired when setBasemapRenderParams() commits a new brightness / contrast / saturation / resampling tuple.

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◆ buildTileUrlPublic()

QUrl WMTSLayer::buildTileUrlPublic	(	const QString &	layerId,
		const QString &	style,
		const QString &	tileMatrixSet,
		const WMTSTileMatrix &	matrix,
		int	col,
		int	row
	)		const

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◆ capabilitiesError

void WMTSLayer::capabilitiesError ( const QString & errorMessage )

signal

◆ capabilitiesFetched

void WMTSLayer::capabilitiesFetched ( const WMTSServiceInfo & info )

signal

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◆ capabilitiesReady()

bool WMTSLayer::capabilitiesReady ( ) const

◆ depopulateScene()

void WMTSLayer::depopulateScene ( QGraphicsScene * scene )

overridevirtual

Removes all QGraphicsItems belonging to this layer from the scene.

Reimplemented from OpenSWMMVisLayer.

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◆ fetchCache()

void WMTSLayer::fetchCache	(	const MapExtent &	extent,
		const QSize &	viewportSize,
		const SpatialReferenceSystem *	srs
	)

overridevirtual

Triggers any asynchronous (or synchronous) tile/data fetch needed to populate this layer's internal cache for the given view state.

Called by MapCanvas::refreshLayerItems() for every visible raster layer BEFORE the MapRenderJob is started. This decouples tile-requesting (potentially async HTTP) from tile-drawing (synchronous, in the background render thread).

WMSLayer: issues a GetMap HTTP request if the cached tile is stale, then returns immediately. When the reply arrives the layer emits repaintRequested() to trigger another render pass.
WMTSLayer: fires fetchTileIfNeeded() for every tile that covers the current viewport; already-cached tiles are skipped.
GISRasterLayer: runs GDALWarp synchronously (fast for local files) if the cache is stale.

The default implementation is a no-op.

Parameters

extent	Visible geographic extent in canvas-CRS coordinates.
viewportSize	Pixel dimensions of the viewport.
srs	Canvas CRS.

Reimplemented from OpenSWMMVisLayer.

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◆ fetchCapabilities()

void WMTSLayer::fetchCapabilities ( )

Asynchronously fetches and parses the GetCapabilities document.

◆ fetchTileIfNeeded()

void WMTSLayer::fetchTileIfNeeded	(	const QString &	cacheKey,
		const QUrl &	tileUrl,
		const MapExtent &	tileExtent,
		int	level
	)

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◆ imageFormat()

QString WMTSLayer::imageFormat ( ) const

◆ imageFormatChanged

void WMTSLayer::imageFormatChanged ( const QString & fmt )

signal

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◆ isBasemapLayer()

bool WMTSLayer::isBasemapLayer ( ) const

inlineoverridevirtual

Returns true for world-spanning basemap layers (XYZ tile providers, WMS/WMTS services covering the whole world) that should NOT be included when computing the data-driven full extent.

MapCanvas::fullExtent() uses this to skip basemap layers so that "Zoom to Full Extent" zooms to the project's data (SWMM network, DTM, bounded WMS coverage) rather than the whole globe. Layers with a specific, bounded geographic footprint (GISRasterLayer, local WMS/WMTS with EX_GeographicBoundingBox) return false so they participate in the extent union.

Reimplemented from OpenSWMMVisLayer.

◆ isRasterLayer()

bool WMTSLayer::isRasterLayer ( ) const

inlineoverridevirtual

Returns true for layers that render into a raster buffer (WMS, WMTS, GISRaster) rather than populating QGraphicsItems.

The MapCanvas uses this to decide whether a layer participates in the background render job or in the QGraphicsScene overlay.

Reimplemented from OpenSWMMVisLayer.

◆ onCanvasCRSChanged()

void WMTSLayer::onCanvasCRSChanged ( const SpatialReferenceSystem * newCanvasSRS )

overridevirtual

Called when the user changes the canvas CRS so layers can pre-compute any CRS-dependent transform caches.

Parameters

newCanvasSRS The new canvas CRS.

Reimplemented from OpenSWMMVisLayer.

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◆ populateScene()

void WMTSLayer::populateScene	(	QGraphicsScene *	scene,
		const MapExtent &	canvasExtent,
		const SpatialReferenceSystem *	canvasSRS
	)

overridevirtual

Creates / updates QGraphicsItems representing this layer in the scene.

Derived classes override this to add their items to the scene. Items should be created in scene coordinates (= map CRS coordinates) after reprojecting from the layer's native CRS.

Called by the MapCanvas when:

The layer is first added.
The canvas CRS changes (after onCanvasCRSChanged).
The layer data changes (model loaded, tile fetched, etc.).

Parameters

scene	The shared OpenSWMMVisScene to add items to.
canvasExtent	Visible extent in canvas-CRS coordinates.
canvasSRS	The CRS currently used by the MapCanvas.

Implements OpenSWMMVisLayer.

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◆ refreshScene()

void WMTSLayer::refreshScene	(	QGraphicsScene *	scene,
		const MapExtent &	canvasExtent,
		const SpatialReferenceSystem *	canvasSRS
	)

overridevirtual

Smart scene refresh — updates existing items instead of destroying and recreating.

Override in subclasses to provide efficient incremental updates. The default implementation calls depopulateScene() then populateScene(), which is backward-compatible but causes flicker for raster/tile layers.

Raster/WMS layers should override to keep persistent scene items and update them in-place. Vector layers should override to skip rebuilding when only the view extent has changed (items are already in scene coords).

Reimplemented from OpenSWMMVisLayer.

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◆ render()

void WMTSLayer::render	(	QPainter *	painter,
		const MapExtent &	extent,
		const QSize &	imageSize,
		const SpatialReferenceSystem *	srs
	)

overridevirtual

Renders this layer's content directly into painter.

Called by the background MapRenderJob for raster layers. The painter is backed by a QImage of imageSize pixels spanning the geographic area described by extent in CRS srs. Pixel (0,0) maps to (extent.xMin, extent.yMax).

The default implementation is a no-op. Raster layer subclasses (WMS, WMTS, GISRaster) override this to paint their cached tile/image data without touching QGraphicsScene.

Parameters

painter	Target painter (backed by viewport-sized QImage).
extent	Visible geographic extent in canvas-CRS coordinates.
imageSize	Pixel dimensions of the target image.
srs	Canvas CRS.

Reimplemented from OpenSWMMVisLayer.

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◆ selectTileMatrixPublic()

const WMTSTileMatrix * WMTSLayer::selectTileMatrixPublic	(	const WMTSTileMatrixSet &	tms,
		const MapExtent &	canvasExtent,
		int	pixelWidth
	)		const

◆ serviceInfo()

WMTSServiceInfo WMTSLayer::serviceInfo ( ) const

◆ serviceUrl()

QUrl WMTSLayer::serviceUrl ( ) const

◆ setActiveLayerId()

void WMTSLayer::setActiveLayerId ( const QString & id )

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◆ setActiveStyle()

void WMTSLayer::setActiveStyle ( const QString & style )

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◆ setActiveTileMatrixSet()

void WMTSLayer::setActiveTileMatrixSet ( const QString & id )

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◆ setBasemapRenderParams()

void WMTSLayer::setBasemapRenderParams ( const OpenSWMM::Render::BasemapRenderParams & p )

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◆ setImageFormat()

void WMTSLayer::setImageFormat ( const QString & fmt )

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◆ setServiceInfo()

void WMTSLayer::setServiceInfo ( const WMTSServiceInfo & info )

Injects an already-fetched service info (e.g. from a connection dialog) so the layer can render immediately without a second GetCapabilities round-trip.

Sets m_capsReady = true and emits capabilitiesFetched().

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◆ setTileCacheMaxSize()

void WMTSLayer::setTileCacheMaxSize ( int maxTiles )

Sets the maximum number of tiles held in the in-memory cache.

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◆ sourceDescription()

QString WMTSLayer::sourceDescription ( ) const

inlineoverridevirtual

Human-readable source of this layer: a file path, a service URL, or a description for in-memory / derived layers.

Default empty — the dialog shows "(none)". Concrete layers override to return their real origin (e.g. modelFilePath(), resultsFilePath(), serviceUrl(), or "(generated mesh)").

Reimplemented from OpenSWMMVisLayer.

◆ tileCacheMaxSize()

int WMTSLayer::tileCacheMaxSize ( ) const

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◆ tileCacheMaxSizeChanged

void WMTSLayer::tileCacheMaxSizeChanged ( int maxTiles )

signal

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◆ tileSize()

int WMTSLayer::tileSize ( ) const

inline

◆ tilesUpdated

void WMTSLayer::tilesUpdated ( )

signal

Property Documentation

◆ activeLayerId

QString WMTSLayer::activeLayerId

readwrite

◆ activeStyle

QString WMTSLayer::activeStyle

readwrite

◆ activeTileMatrixSet

QString WMTSLayer::activeTileMatrixSet

readwrite

◆ imageFormat

QString WMTSLayer::imageFormat

readwrite

◆ serviceUrl

QUrl WMTSLayer::serviceUrl

read

◆ tileCacheMaxSize

int WMTSLayer::tileCacheMaxSize

readwrite

◆ tileSize

int WMTSLayer::tileSize

read

The documentation for this class was generated from the following files:

/home/runner/work/openswmm.gui/openswmm.gui/include/layers/wmtslayer.h
/home/runner/work/openswmm.gui/openswmm.gui/src/layers/wmtslayer.cpp

Signals

Public Member Functions

Properties

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ WMTSLayer()

◆ ~WMTSLayer()

Member Function Documentation

◆ activeLayerId()

◆ activeLayerIdChanged

◆ activeStyle()

◆ activeStyleChanged

◆ activeTileMatrixSet()

◆ activeTileMatrixSetChanged

◆ basemapRenderParams()

◆ basemapRenderParamsChanged

◆ buildTileUrlPublic()

◆ capabilitiesError

◆ capabilitiesFetched

◆ capabilitiesReady()

◆ depopulateScene()

◆ fetchCache()

◆ fetchCapabilities()

◆ fetchTileIfNeeded()

◆ imageFormat()

◆ imageFormatChanged

◆ isBasemapLayer()

◆ isRasterLayer()

◆ onCanvasCRSChanged()

◆ populateScene()

◆ refreshScene()

◆ render()

◆ selectTileMatrixPublic()

◆ serviceInfo()

◆ serviceUrl()

◆ setActiveLayerId()

◆ setActiveStyle()

◆ setActiveTileMatrixSet()

◆ setBasemapRenderParams()

◆ setImageFormat()

◆ setServiceInfo()

◆ setTileCacheMaxSize()

◆ sourceDescription()

◆ tileCacheMaxSize()

◆ tileCacheMaxSizeChanged

◆ tileSize()

◆ tilesUpdated

Property Documentation

◆ activeLayerId

◆ activeStyle

◆ activeTileMatrixSet

◆ imageFormat

◆ serviceUrl

◆ tileCacheMaxSize

◆ tileSize