Class: RasterLogProvider

• [new RasterLogProvider(baseUrl, httpService, sourceInfo, contentType, segmentId, metadataUrl)](/solutions/geotoolkit/GeoToolkit_JS/apis/classes/geotoolkit.ivaapbackend.well.rasterlogprovider.rasterlogprovider.md#new rasterlogprovider(baseurl, httpservice, sourceinfo, contenttype, segmentid, metadataurl))

• new RasterLogProvider(baseUrl, httpService, sourceInfo, contentType?, segmentId?, metadataUrl?)

Creates a new RasterLogProvider.

EventDispatcher.constructor

▸ dispose(): void

Dispose.

void

EventDispatcher.dispose

▸ getClassName(): string

string

EventDispatcher.getClassName

▸ getImageInfo(): ImageInfo

Returns metadata for the currently selected image section.

Throws

if the provider was not successfully initialized

ImageInfo

▸ getImageLoader(): ImageCallback<TileRequest&gt;

Returns an image loader callback for tiled image rendering. Each tile is fetched from the IVAAP tile endpoint as JSON and the embedded image bytes are morphed using WebGL before being returned as a data URL.

ImageCallback<TileRequest&gt;

image loader callback for use with tiled image visuals

▸ getImagesInfo(): ImageSection[]

Returns metadata for all available image sections in the source.

ImageSection[]

▸ getSegmentId(): string

Returns the segment id of the currently opened image section, or null when the provider is not opened.

string

▸ getTileURLFormatter(): Formatter<TileRequest&gt;

Returns a formatter function for tiled image rendering. The formatter maps tile device coordinates to original image pixel coordinates and builds the IVAAP tile service URL.

Formatter<TileRequest&gt;

formatter callback for use with tiled image visuals

▸ hasEventListener(type, callback?): boolean

Check if a list of event listeners for this type contains this listener

boolean

EventDispatcher.hasEventListener

▸ isDisposed(): boolean

Returns whether this object has been disposed

boolean

EventDispatcher.isDisposed

▸ isOpened(): boolean

Returns true if the provider has successfully opened a data section.

boolean

▸ isSilent(): boolean

Return true if the event dispatcher doesn't notify any events

boolean

EventDispatcher.isSilent

▸ loadImageByType(type, segmentId?): Promise<string&gt;

Loads a full (non-tiled) image of the given content type from the IVAAP rasterlogimages endpoint and returns a blob object URL suitable for use as an <img> src.

The method looks up an image section whose type matches the supplied argument, retrieves the Content HATEOAS link from that section, fetches the image as a binary blob, and wraps it in a blob object URL. The caller is responsible for revoking the URL when it is no longer needed.

Throws

if the provider is not opened

Promise<string&gt;

a promise that resolves to a blob object URL string, or null when no section with the requested type exists in the source info

▸ notify(type, source, args?): RasterLogProvider

Notify listeners

RasterLogProvider

this

EventDispatcher.notify

▸ off(type?, callback?): RasterLogProvider

Detach listener on event. Calling .off() with no arguments removes all attached listeners. Calling .off(type) with no callback removes all attached listeners for specific type.

RasterLogProvider

this

EventDispatcher.off

▸ off<E&gt;(type, callback): RasterLogProvider

RasterLogProvider

EventDispatcher.off

▸ on(type, callback, options?): RasterLogProvider

Attach listener on event that will be called whenever the specified event is delivered to the target <p> If the callback function is already in the list of event listeners for this target, the function is not added a second time. </p> <p> If a particular anonymous function is in the list of event listeners registered for a certain target, and then later in the code, an identical anonymous function is given in an "on" call, the second function will also be added to the list of event listeners for that target. </p>

RasterLogProvider

this

EventDispatcher.on

▸ on<E&gt;(type, callback, options?): RasterLogProvider

RasterLogProvider

EventDispatcher.on

▸ setSilent(bool): RasterLogProvider

Set silent mode

RasterLogProvider

this

EventDispatcher.setSilent

▸ updateSegment(segmentId?): Promise<never&gt; | RasterLogProvider

Re-initializes the provider for a different segment. Call this when the user switches between log segments (e.g. different depth intervals).

Promise<never&gt; | RasterLogProvider

this, or a rejected Promise if no matching section is found

▸ Static getClassName(): string

string

EventDispatcher.getClassName