feat: add static method fromMask to RoiMapManager (#289)

Author: lpatiny

src/roi/RoiMapManager.ts

@@ -1,6 +1,9 @@
 import { Matrix } from 'ml-matrix';
 
+import { Mask } from '../Mask';
+
 import { Roi } from './Roi';
+import { FromMaskOptions, fromMask } from './fromMask';
 import { getRois, GetRoisOptions } from './getRois';
 
 export interface RoiManager {
@@ -79,4 +82,8 @@ export class RoiMapManager implements RoiManager {
   public getRois(options: GetRoisOptions = {}): Roi[] {
     return getRois(this, options);
   }
+
+  public static fromMask(mask: Mask, options: FromMaskOptions = {}) {
+    return fromMask(mask, options);
+  }
 }

src/roi/__tests__/RoiMapManager.test.ts

@@ -1,3 +1,4 @@
+import { RoiMapManager } from '../RoiMapManager';
 import { fromMask } from '../fromMask';
 
 test('should work with crop', () => {
@@ -25,4 +26,14 @@ test('should work with crop', () => {
     [0, 200, 0],
     [225, 250, 200],
   ]);
+
+  const roiMapManager2 = RoiMapManager.fromMask(mask);
+  const rois2 = roiMapManager2.getRois();
+
+  const result2 = image.crop(rois2[0]);
+
+  expect(result2).toMatchImageData([
+    [0, 200, 0],
+    [225, 250, 200],
+  ]);
 });