diff --git a/package-lock.json b/package-lock.json
index 068cbe7..60f42d8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -40,7 +40,7 @@
         "ngx-openlayers": "1.0.0-next.19",
         "ngx-uploadx": "^5.2.0",
         "ol": "6.14.1",
-        "ol-cesium": "^2.13.1",
+        "olcs": "^2.13.1",
         "resumablejs": "^1.1.0",
         "rxjs": "^6.6.7",
         "stream": "^0.0.2",
@@ -10552,15 +10552,6 @@
         "url": "https://opencollective.com/openlayers"
       }
     },
-    "node_modules/ol-cesium": {
-      "version": "2.13.1",
-      "resolved": "https://registry.npmjs.org/ol-cesium/-/ol-cesium-2.13.1.tgz",
-      "integrity": "sha512-U6RnNakFCwlqYTBBzB0BPx4mki8sArMRMRjBortGlM+3jMvXLPZ/QR9mtPp80SFoQAnPD21vSmFUCa47jhc3Cg==",
-      "peerDependencies": {
-        "cesium": ">= 1.62.0",
-        "ol": ">= 6.0.1 || 7"
-      }
-    },
     "node_modules/ol-mapbox-style": {
       "version": "7.1.1",
       "resolved": "https://registry.npmjs.org/ol-mapbox-style/-/ol-mapbox-style-7.1.1.tgz",
@@ -10571,6 +10562,15 @@
         "webfont-matcher": "^1.1.0"
       }
     },
+    "node_modules/olcs": {
+      "version": "2.13.1",
+      "resolved": "https://registry.npmjs.org/olcs/-/olcs-2.13.1.tgz",
+      "integrity": "sha512-/h1ldzUGQG05k9KR3M56m7qVRDruXfrHiaLujMKk+EiNvpGuxlwtsj2Kkcm2wVx9t+DQvDXemf2SeV8K/ME9qw==",
+      "peerDependencies": {
+        "cesium": ">= 1.62.0",
+        "ol": ">= 6.0.1 || 7"
+      }
+    },
     "node_modules/on-finished": {
       "version": "2.4.1",
       "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.4.1.tgz",
@@ -23105,11 +23105,6 @@
         "rbush": "^3.0.1"
       }
     },
-    "ol-cesium": {
-      "version": "2.13.1",
-      "resolved": "https://registry.npmjs.org/ol-cesium/-/ol-cesium-2.13.1.tgz",
-      "integrity": "sha512-U6RnNakFCwlqYTBBzB0BPx4mki8sArMRMRjBortGlM+3jMvXLPZ/QR9mtPp80SFoQAnPD21vSmFUCa47jhc3Cg=="
-    },
     "ol-mapbox-style": {
       "version": "7.1.1",
       "resolved": "https://registry.npmjs.org/ol-mapbox-style/-/ol-mapbox-style-7.1.1.tgz",
@@ -23120,6 +23115,11 @@
         "webfont-matcher": "^1.1.0"
       }
     },
+    "olcs": {
+      "version": "2.13.1",
+      "resolved": "https://registry.npmjs.org/olcs/-/olcs-2.13.1.tgz",
+      "integrity": "sha512-/h1ldzUGQG05k9KR3M56m7qVRDruXfrHiaLujMKk+EiNvpGuxlwtsj2Kkcm2wVx9t+DQvDXemf2SeV8K/ME9qw=="
+    },
     "on-finished": {
       "version": "2.4.1",
       "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.4.1.tgz",
diff --git a/package.json b/package.json
index 6bf496f..e7d676a 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "ngx-openlayers": "1.0.0-next.19",
     "ngx-uploadx": "^5.2.0",
     "ol": "6.14.1",
-    "ol-cesium": "^2.13.1",
+    "olcs": "^2.13.1",
     "resumablejs": "^1.1.0",
     "rxjs": "^6.6.7",
     "stream": "^0.0.2",
diff --git a/projects/common-map3d/src/fm-map3d/components/olcs/switch2d3d/switch2d3d.component.ts b/projects/common-map3d/src/fm-map3d/components/olcs/switch2d3d/switch2d3d.component.ts
index ab92fdf..4d5ed64 100644
--- a/projects/common-map3d/src/fm-map3d/components/olcs/switch2d3d/switch2d3d.component.ts
+++ b/projects/common-map3d/src/fm-map3d/components/olcs/switch2d3d/switch2d3d.component.ts
@@ -1,11 +1,9 @@
 import { Component, OnInit,Input,Host  } from '@angular/core';
-import { OldCircularArc } from 'arcgis-rest-api';
-import { Map } from 'ol';
 import { Interaction} from 'ol/interaction';
 import { MapComponent } from 'ngx-openlayers';
-import OLCesium from 'ol-cesium';
-
-declare var olcs: any;
+import OLCesium from 'olcs/OLCesium';
+import RasterSynchronizer from 'olcs/RasterSynchronizer';
+import VectorSynchronizer from 'olcs/VectorSynchronizer';
 
 @Component({
   selector: 'fm-map3d-switch2d3d',
@@ -30,8 +28,8 @@ export class Switch2D3DComponent {
    
     this.ol3d = new OLCesium({ map: this.map.instance, createSynchronizers: (map,scene) => {
         this.synchronizers = [
-            new olcs.RasterSynchronizer(map,scene),
-            new olcs.VectorSynchronizer(map,scene)
+            new RasterSynchronizer(map,scene),
+            new VectorSynchronizer(map,scene)
         ];
         this.loading=false;
         return this.synchronizers;