From e8f0e6f6dc39251eea304d41fc69858d4bb7b282 Mon Sep 17 00:00:00 2001
From: Chris Beer <cabeer@stanford.edu>
Date: Thu, 28 May 2020 10:47:08 -0700
Subject: [PATCH] Support clipping fragments to display in the OSD viewer
---
src/components/OpenSeadragonViewer.js | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/src/components/OpenSeadragonViewer.js b/src/components/OpenSeadragonViewer.js
index 5db718e75..461ebdbc7 100644
--- a/src/components/OpenSeadragonViewer.js
+++ b/src/components/OpenSeadragonViewer.js
@@ -36,6 +36,14 @@ export class OpenSeadragonViewer extends Component {
});
}
+ /** */
+ static resourceClip(contentResource) {
+ const fragmentMatch = contentResource.id.match(/xywh=(.*)$/);
+ if (!fragmentMatch) return undefined;
+ const bounds = fragmentMatch[1].split(',').map(str => parseInt(str, 10));
+ return new OpenSeadragon.Rect(...bounds);
+ }
+
/**
* @param {Object} props
*/
@@ -223,7 +231,10 @@ export class OpenSeadragonViewer extends Component {
if (!this.viewer) {
return;
}
+
+ const clip = OpenSeadragonViewer.resourceClip(contentResource);
this.viewer.addSimpleImage({
+ ...(clip && { clip }),
error: event => reject(event),
fitBounds: new OpenSeadragon.Rect(
...canvasWorld.contentResourceToWorldCoordinates(contentResource),
@@ -249,8 +260,10 @@ export class OpenSeadragonViewer extends Component {
const contentResource = canvasWorld.contentResource(infoResponse.id);
if (!contentResource) return;
+ const clip = OpenSeadragonViewer.resourceClip(contentResource);
this.viewer.addTiledImage({
+ ...(clip && { clip }),
error: event => reject(event),
fitBounds: new OpenSeadragon.Rect(
...canvasWorld.contentResourceToWorldCoordinates(contentResource),
--
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