Fix and merge dev snap to nav

src/viewerModule/nehuba/viewerCtrl/change-perspective-orientation/changePerspectiveOrientation.component.html

+<button mat-menu-item [mat-menu-trigger-for]="perspectiveOrientationMenu">
+    Change orientation to
+</button>
+
+<mat-menu #perspectiveOrientationMenu="matMenu">
+
+    <div class="d-flex align-items-center text-light">
+        <button mat-button color="basic" class="flex-grow-1 text-left"
+                (click)="set3DViewPoint('coronal', 'first')">
+            Coronal view
+        </button>
+        <button class="flex-grow-0" mat-button
+                (click)="set3DViewPoint('coronal', 'second')">
+            <i class="fas fa-arrows-alt-h"></i>
+        </button>
+    </div>
+
+    <div class="d-flex align-items-center text-light"> <!--mat-menu-item-->
+        <button mat-button color="basic" class="flex-grow-1 text-left"
+                (click)="set3DViewPoint('sagittal', 'first')">
+            Sagittal view
+        </button>
+        <button class="flex-grow-0" mat-button
+                (click)="set3DViewPoint('sagittal', 'second')">
+            <i class="fas fa-arrows-alt-h"></i>
+        </button>
+    </div>
+
+    <div class="d-flex align-items-center text-light"> <!--mat-menu-item-->
+        <button mat-button color="basic" class="flex-grow-1 text-left"
+                (click)="set3DViewPoint('axial', 'first')">
+            Axial view
+        </button>
+        <button class="flex-grow-0" mat-button
+                (click)="set3DViewPoint('axial', 'second')">
+            <i class="fas fa-arrows-alt-h"></i>
+        </button>
+    </div>
+
+</mat-menu>

src/viewerModule/nehuba/viewerCtrl/change-perspective-orientation/changePerspectiveOrientation.component.spec.ts

+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ChangePerspectiveOrientationComponent } from './changePerspectiveOrientation.component';
+
+describe('ChangePerspectiveOrientationComponent', () => {
+  let component: ChangePerspectiveOrientationComponent;
+  let fixture: ComponentFixture<ChangePerspectiveOrientationComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ ChangePerspectiveOrientationComponent ]
+    })
+    .compileComponents();
+  });
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(ChangePerspectiveOrientationComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/viewerModule/nehuba/viewerCtrl/change-perspective-orientation/changePerspectiveOrientation.component.ts

+import { Component, OnInit } from '@angular/core';
+import {viewerStateChangeNavigation} from "src/services/state/viewerState/actions";
+import {Store} from "@ngrx/store";
+
+@Component({
+  selector: 'app-change-perspective-orientation',
+  templateUrl: './changePerspectiveOrientation.component.html',
+  styleUrls: ['./changePerspectiveOrientation.component.sass']
+})
+export class ChangePerspectiveOrientationComponent implements OnInit {
+
+  private viewOrientations = {
+    coronal: [[0,-1,1,0], [-1,0,0,1]],
+    sagittal: [[-1,-1,1,1], [-1,1,-1,1]],
+    axial: [[0,0,1,0], [0,0,1,0]]
+  }
+
+  constructor(private store$: Store<any>,) { }
+
+  ngOnInit(): void {
+  }
+
+  public set3DViewPoint(plane: 'coronal' | 'sagittal' | 'axial', view: 'first' | 'second') {
+
+    const orientation = this.viewOrientations[plane][view === 'first'? 0 : 1]
+
+    this.store$.dispatch(
+      viewerStateChangeNavigation({
+        navigation: {
+          perspectiveOrientation: orientation,
+        }
+      })
+    )
+  }
+
+}

src/viewerModule/nehuba/viewerCtrl/module.ts

@@ -5,6 +5,7 @@ import { ComponentsModule } from "src/components";
 import { AngularMaterialModule } from "src/sharedModules";
 import { UtilModule } from "src/util";
 import { ViewerCtrlCmp } from "./viewerCtrlCmp/viewerCtrlCmp.component";
+import {ChangePerspectiveOrientationComponent} from "src/viewerModule/nehuba/viewerCtrl/change-perspective-orientation/changePerspectiveOrientation.component";
 
 @NgModule({
   imports: [
@@ -17,6 +18,7 @@ import { ViewerCtrlCmp } from "./viewerCtrlCmp/viewerCtrlCmp.component";
   ],
   declarations: [
     ViewerCtrlCmp,
+    ChangePerspectiveOrientationComponent
   ],
   exports: [
     ViewerCtrlCmp

src/viewerModule/nehuba/viewerCtrl/viewerCtrlCmp/viewerCtrlCmp.template.html

@@ -41,3 +41,4 @@
   </form>
 </ng-container>
 
+<app-change-perspective-orientation></app-change-perspective-orientation>