Addressing PolySeg Worker Integration Issues in Angular Projects Using CornerstoneJS

ohif · January 24, 2025, 9:59am

View in #cornerstone3d on Slack

@Tuan_Nguyen: In my angular project, using CornerstoneJS V1.84, i am having this issue when convert contour to surface volume
The code point into at this packages/tools/src/stateManagement/segmentation/polyseg/registerPolySegWorker.ts:
import { getWebWorkerManager } from '@cornerstonejs/core';

let registered = false;

export function registerPolySegWorker() {
  if (registered) {
    return;
  }

  registered = true;

  const workerFn = () => {
    return new Worker(
      // @ts-ignore
      new URL('../../../workers/polySegConverters', import.meta.url),
      {
        name: 'polySeg',
        type: 'module',
      }
    );
  };

  const workerManager = getWebWorkerManager();

  const options = {
    maxWorkerInstances: 1, // Todo, make this configurable
    autoTerminateOnIdle: {
      enabled: true,
      idleTimeThreshold: 2000,
    },
  };

  workerManager.registerWorker('polySeg', workerFn, options);
}
@Alireza_Sedghi: Angular has a bug, you can follow up with them here https://github.com/angular/angular-cli/issues/28994

1534x780px image

I don’t think they will fix it though
You can use rspack builder which i heard is out for Angular
(haven’t tried myself)
Currently they use esbuild with dev mode which has a lot of issues
Vite is moving off esbuild to rollDown
which is supposed to fix this issue

@Tuan_Nguyen: The V2 and Angular is not working , but the V1.84 is working well with my project.

@Alireza_Sedghi: I know
i linked to the issue

@Tuan_Nguyen: Yeah, it was the same issue i commented on from last year.

@Alireza_Sedghi: try the new rspack builder for angular
it might fix it until they properly move to the new vite
https://github.com/Coly010/ng-rspack-build

Coly010/ng-rspack-build

(haven’t tried it myself)

@Tuan_Nguyen: I will try it when I can. Hopefully it work