Load GeoTiff from Blob #13189 #13703

src/ol/source/GeoTIFF.js

@@ -4,7 +4,12 @@
 import DataTile from './DataTile.js';
 import State from './State.js';
 import TileGrid from '../tilegrid/TileGrid.js';
-import {Pool, fromUrl as tiffFromUrl, fromUrls as tiffFromUrls} from 'geotiff';
+import {
+  Pool,
+  fromBlob as tiffFromBlob,
+  fromUrl as tiffFromUrl,
+  fromUrls as tiffFromUrls,
+} from 'geotiff';
 import {
   Projection,
   get as getCachedProjection,
@@ -17,8 +22,9 @@ import {fromCode as unitsFromCode} from '../proj/Units.js';
 
 /**
  * @typedef {Object} SourceInfo
- * @property {string} url URL for the source GeoTIFF.
- * @property {Array<string>} [overviews] List of any overview URLs.
+ * @property {string} [url] URL for the source GeoTIFF.
+ * @property {Array<string>} [overviews] List of any overview URLs, only applies if the url parameter is given.
+ * @property {Blob} [blob] Blob containing the source GeoTIFF. `blob` and `url` are mutually exclusive.
  * @property {number} [min=0] The minimum source data value.  Rendered values are scaled from 0 to 1 based on
  * the configured min and max.  If not provided and raster statistics are available, those will be used instead.
  * If neither are available, the minimum for the data type will be used.  To disable this behavior, set
@@ -189,7 +195,9 @@ function getImagesForTIFF(tiff) {
  */
 function getImagesForSource(source, options) {
   let request;
-  if (source.overviews) {
+  if (source.blob) {
+    request = tiffFromBlob(source.blob);
+  } else if (source.overviews) {
     request = tiffFromUrls(source.url, source.overviews, options);
   } else {
     request = tiffFromUrl(source.url, options);