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ObsSegmentationsJson.js
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ObsSegmentationsJson.js
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import { AbstractLoaderError, LoaderResult } from '@vitessce/vit-s';
import { CoordinationLevel as CL } from '@vitessce/config';
import JsonLoader from './JsonLoader.js';
export default class ObsSegmentationsJsonLoader extends JsonLoader {
loadFromCache(data) {
if (this.cachedResult) {
return this.cachedResult;
}
const obsIndex = Object.keys(data);
const obsPolygons = Object.values(data);
const obsSegmentations = {
data: obsPolygons,
shape: [obsPolygons.length, obsPolygons[0].length],
};
this.cachedResult = { obsIndex, obsSegmentations, obsSegmentationsType: 'polygon' };
return this.cachedResult;
}
async load() {
const payload = await super.load().catch(reason => Promise.resolve(reason));
if (payload instanceof AbstractLoaderError) {
return Promise.reject(payload);
}
const channelCoordination = [{
// obsType: null,
spatialChannelColor: [255, 255, 255],
spatialChannelVisible: true,
spatialChannelOpacity: 1.0,
spatialChannelWindow: null,
// featureType: 'feature',
// featureValueType: 'value',
obsColorEncoding: 'spatialChannelColor',
spatialSegmentationFilled: true,
spatialSegmentationStrokeWidth: 1.0,
obsHighlight: null,
}];
const coordinationValues = {
// spatialTargetZ: imageWrapper.getDefaultTargetZ(),
// spatialTargetT: imageWrapper.getDefaultTargetT(),
segmentationLayer: CL([
{
fileUid: this.coordinationValues?.fileUid || null,
spatialLayerOpacity: 1.0,
spatialLayerVisible: true,
segmentationChannel: CL(channelCoordination),
},
]),
};
const { data, url } = payload;
const result = this.loadFromCache(data);
return Promise.resolve(new LoaderResult(
result,
url,
coordinationValues,
));
}
}