diff --git a/src/ui-carto/ui/cssproperties.ts b/src/ui-carto/ui/cssproperties.ts
index bc67d1eb..35be7e74 100644
--- a/src/ui-carto/ui/cssproperties.ts
+++ b/src/ui-carto/ui/cssproperties.ts
@@ -1,6 +1,5 @@
 import { CssProperty, Style, booleanConverter } from '@nativescript/core';
-import { LatitudeKey, LongitudeKey } from '../core';
-import { GenericMapPos } from '../core/index.common';
+import { GenericMapPos, LatitudeKey, LongitudeKey } from '../core';
 
 export const zoomProperty = new CssProperty<Style, number>({
     name: 'zoom',
diff --git a/src/ui-carto/vectorelements/group.d.ts b/src/ui-carto/vectorelements/group.d.ts
index 8b615224..e93a9537 100644
--- a/src/ui-carto/vectorelements/group.d.ts
+++ b/src/ui-carto/vectorelements/group.d.ts
@@ -1,7 +1,6 @@
 import { BasePointVectorElement, PointVectorElementOptions, VectorElement, VectorElementVector } from '.';
-import { MapPos } from '../core';
+import { DefaultLatLonKeys, GenericMapPos, MapPos } from '../core';
 import { Projection } from '../projections';
-import { DefaultLatLonKeys, GenericMapPos } from '../core/index.common';
 
 export class GroupOptions<T = DefaultLatLonKeys> extends PointVectorElementOptions<T> {
     elements: { id: string; element: VectorElement<any, any> }[];
diff --git a/src/ui-carto/vectorelements/index.android.ts b/src/ui-carto/vectorelements/index.android.ts
index dc03d9db..4bd428a7 100644
--- a/src/ui-carto/vectorelements/index.android.ts
+++ b/src/ui-carto/vectorelements/index.android.ts
@@ -2,9 +2,9 @@ import { AnimationStyle, BillboardStyleBuilderOptions, LineVectorElementOptions,
 // import { BaseVectorElement } from './vectorelements.common';
 import { nativeProperty } from '../index.common';
 import { BaseNative } from '../BaseNative';
-import { nativeMapToJS } from '../utils';
+import { JSVariantToNative, nativeMapToJS, nativeVariantToJS } from '../utils';
 import { Projection } from '../projections';
-import { MapPos, MapPosVector, fromNativeMapPos, toNativeMapPos } from '../core';
+import { MapPos, MapPosVector, fromNativeMapBounds, fromNativeMapPos, toNativeMapPos } from '../core';
 import { mapPosVectorFromArgs } from '..';
 import { BaseVectorElementStyleBuilder } from './index.common';
 export { BaseVectorElementStyleBuilder };
@@ -38,24 +38,26 @@ export abstract class BaseVectorElement<T extends com.carto.vectorelements.Vecto
     createNative(options: U) {
         return null;
     }
+
     get metaData(): { [k: string]: string } {
         if (this.native) {
             return nativeMapToJS(this.native.getMetaData());
-        } else {
-            return this.options.metaData;
         }
+        return this.options.metaData;
     }
     set metaData(value: { [k: string]: string }) {
         this.options.metaData = value;
         if (this.native) {
             const theMap = new com.carto.core.StringVariantMap();
             for (const key in value) {
-                theMap.set(key, new com.carto.core.Variant(value[key]));
+                theMap.set(key, JSVariantToNative(value[key]));
             }
             this.native.setMetaData(theMap);
         }
     }
+
     abstract buildStyle();
+
     rebuildStyle() {
         (this.native as any).setStyle(this.buildStyle());
     }
@@ -118,6 +120,29 @@ export abstract class BaseLineVectorElement<
 }
 
 export class VectorElement extends BaseVectorElement<com.carto.vectorelements.VectorElement, VectorElementOptions> {
+    @nativeProperty id: number;
+
+    containsMetaDataKey(key: string): boolean {
+        return this.native ? this.native.containsMetaDataKey(key) : false;
+    }
+    getMetadataElement(key: string): { [k: string]: string } {
+        if (this.native) {
+            return nativeVariantToJS(this.native.getMetaDataElement(key));
+        }
+        return undefined;
+    }
+    setMetadataElement(key: string, element: { [k: string]: string }): void {
+        if (this.native) {
+            this.native.setMetaDataElement(key, JSVariantToNative(element));
+        }
+    }
+    getGeometry() {
+        return this.getNative().getGeometry();
+    }
+    getBounds() {
+        return fromNativeMapBounds(this.getNative().getBounds());
+    }
+
     buildStyle() {}
 }
 
diff --git a/src/ui-carto/vectorelements/index.d.ts b/src/ui-carto/vectorelements/index.d.ts
index 9d6fde94..47d923bc 100644
--- a/src/ui-carto/vectorelements/index.d.ts
+++ b/src/ui-carto/vectorelements/index.d.ts
@@ -1,7 +1,7 @@
 import { BaseNative } from '..';
-import { MapPos, MapPosVector } from '../core';
+import { DefaultLatLonKeys, GenericMapPos, MapBounds, MapPos, MapPosVector } from '../core';
 import { Projection } from '../projections';
-import { DefaultLatLonKeys, GenericMapPos } from '../core/index.common';
+import { Geometry } from '../geometry';
 
 declare enum BillboardOrientation {
     FACE_CAMERA,
@@ -70,7 +70,13 @@ export abstract class BaseLineVectorElement<T, U extends LineVectorElementOption
     positions?: MapPosVector<K> | GenericMapPos<K>[];
     projection?: Projection;
 }
-export class VectorElement<T, U extends VectorElementOptions> extends BaseVectorElement<T, U> {}
+export class VectorElement<T, U extends VectorElementOptions> extends BaseVectorElement<T, U> {
+    id?: number;
+    getBounds(): MapBounds<DefaultLatLonKeys>;
+    getGeometry(): Geometry<DefaultLatLonKeys>;
+    getMetadataElement(key: string): { [k: string]: string };
+    setMetadataElement(key: string, element: { [k: string]: string }): void;
+}
 export abstract class BaseVectorElementStyleBuilder<T, U extends VectorElementStyleBuilderOptions> extends BaseNative<T, U> {
     buildStyle(): any;
 }
diff --git a/src/ui-carto/vectorelements/index.ios.ts b/src/ui-carto/vectorelements/index.ios.ts
index 95b03ce6..9b128de2 100644
--- a/src/ui-carto/vectorelements/index.ios.ts
+++ b/src/ui-carto/vectorelements/index.ios.ts
@@ -1,9 +1,9 @@
 import { AnimationStyle, BillboardStyleBuilderOptions, LineVectorElementOptions, PointVectorElementOptions, VectorElementOptions } from '.';
 import { nativeProperty } from '../index.common';
 import { BaseNative } from '../BaseNative';
-import { nativeMapToJS } from '../utils';
+import { JSVariantToNative, nativeMapToJS, nativeVariantToJS } from '../utils';
 import { Projection } from '../projections';
-import { MapPos, MapPosVector, fromNativeMapPos, toNativeMapPos } from '../core';
+import { MapPos, MapPosVector, fromNativeMapBounds, fromNativeMapPos, toNativeMapPos } from '../core';
 import { mapPosVectorFromArgs } from '..';
 import { BaseVectorElementStyleBuilder } from './index.common';
 export { BaseVectorElementStyleBuilder };
@@ -37,24 +37,26 @@ export abstract class BaseVectorElement<T extends NTVectorElement, U extends Vec
     createNative(options: U) {
         return null;
     }
+
     get metaData(): { [k: string]: string } {
         if (this.native) {
             return nativeMapToJS(this.native.getMetaData());
-        } else {
-            return this.options.metaData;
         }
+        return this.options.metaData;
     }
     set metaData(value: { [k: string]: string }) {
         this.options.metaData = value;
         if (this.native) {
             const theMap = NTStringVariantMap.alloc().init();
             for (const key in value) {
-                theMap.setX(key, NTVariant.alloc().initWithString(value[key]));
+                theMap.setX(key, JSVariantToNative(value[key]));
             }
             this.native.setMetaData(theMap);
         }
     }
+
     abstract buildStyle();
+
     rebuildStyle() {
         (this.native as any).setStyle(this.buildStyle());
     }
@@ -124,6 +126,29 @@ export abstract class BaseLineVectorElement<
 }
 
 export class VectorElement extends BaseVectorElement<NTVectorElement, VectorElementOptions> {
+    @nativeProperty id: number;
+
+    containsMetaDataKey(key: string): boolean {
+        return this.native ? this.native.containsMetaDataKey(key) : false;
+    }
+    getMetadataElement(key: string): { [k: string]: string } {
+        if (this.native) {
+            return nativeVariantToJS(this.native.getMetaDataElement(key));
+        }
+        return undefined;
+    }
+    setMetadataElement(key: string, element: { [k: string]: string }): void {
+        if (this.native) {
+            this.native.setMetaDataElementElement(key, JSVariantToNative(element));
+        }
+    }
+    getGeometry() {
+        return this.getNative().getGeometry();
+    }
+    getBounds() {
+        return fromNativeMapBounds(this.getNative().getBounds());
+    }
+
     buildStyle() {}
 }
 export class VectorElementVector extends BaseNative<NTVectorElementVector, any> {
diff --git a/src/ui-carto/vectorelements/line.android.ts b/src/ui-carto/vectorelements/line.android.ts
index 3e6e27a5..378727f0 100644
--- a/src/ui-carto/vectorelements/line.android.ts
+++ b/src/ui-carto/vectorelements/line.android.ts
@@ -1,5 +1,5 @@
 import { Color } from '@nativescript/core';
-import { geometryFromArgs, mapPosVectorFromArgs, nativeAndroidEnumProperty, nativeColorProperty, nativeProperty } from '..';
+import { geometryFromArgs, mapPosVectorFromArgs, nativeColorProperty, nativeProperty } from '..';
 import { MapBounds, MapPos, MapPosVector, fromNativeMapBounds } from '../core';
 import { LineGeometry } from '../geometry';
 import { BaseLineVectorElement } from './index.android';
@@ -115,18 +115,20 @@ export class Line extends BaseLineVectorElement<com.carto.vectorelements.Line, L
             this.rebuildStyle();
         }
     }
-
-    setPoses(positions: MapPosVector | MapPos[]) {
-        this.positions = positions;
-        if (this.native) {
-            this.native.setPoses(mapPosVectorFromArgs(positions, this.options.ignoreAltitude));
-        }
+    get geometry(): com.carto.geometry.LineGeometry {
+        return this.getGeometry();
     }
     set geometry(geometry: LineGeometry) {
         if (this.native) {
             this.native.setGeometry(geometryFromArgs(geometry));
         }
     }
+    setPoses(positions: MapPosVector | MapPos[]) {
+        this.positions = positions;
+        if (this.native) {
+            this.native.setPoses(mapPosVectorFromArgs(positions, this.options.ignoreAltitude));
+        }
+    }
     getPoses() {
         return this.positions || this.getNative().getPoses();
     }
@@ -134,8 +136,6 @@ export class Line extends BaseLineVectorElement<com.carto.vectorelements.Line, L
         return this.getNative().getGeometry();
     }
     getBounds() {
-        const nBounds = this.getNative().getBounds();
-        // const nProjection = this.projection.getNative();
-        return fromNativeMapBounds(nBounds);
+        return fromNativeMapBounds(this.getNative().getBounds());
     }
 }
diff --git a/src/ui-carto/vectorelements/line.d.ts b/src/ui-carto/vectorelements/line.d.ts
index 76209011..44684dfa 100644
--- a/src/ui-carto/vectorelements/line.d.ts
+++ b/src/ui-carto/vectorelements/line.d.ts
@@ -1,9 +1,8 @@
 import { Projection } from '../projections';
-import { MapBounds, MapPos, MapPosVector } from '../core';
+import { DefaultLatLonKeys, GenericMapPos, MapBounds, MapPosVector } from '../core';
 import { BaseLineVectorElement, BaseVectorElementStyleBuilder, LineVectorElementOptions, VectorElementOptions } from '.';
 import { Color } from '@nativescript/core';
 import { Geometry, LineGeometry } from '../geometry';
-import { DefaultLatLonKeys, GenericMapPos } from '../core/index.common';
 
 declare enum LineJointType {
     FaceCamera,
diff --git a/src/ui-carto/vectorelements/line.ios.ts b/src/ui-carto/vectorelements/line.ios.ts
index 00802560..020bf281 100644
--- a/src/ui-carto/vectorelements/line.ios.ts
+++ b/src/ui-carto/vectorelements/line.ios.ts
@@ -123,6 +123,9 @@ export class Line extends BaseLineVectorElement<NTLine, LineOptions> {
     getPoses() {
         return this.positions;
     }
+    get geometry(): NTLineGeometry {
+        return this.getGeometry();
+    }
     set geometry(geometry: LineGeometry) {
         if (this.native) {
             this.native.setGeometry(geometryFromArgs(geometry));
@@ -132,7 +135,6 @@ export class Line extends BaseLineVectorElement<NTLine, LineOptions> {
         return this.getNative().getGeometry();
     }
     getBounds() {
-        const nBounds = this.getNative().getBounds();
-        return fromNativeMapBounds(nBounds);
+        return fromNativeMapBounds(this.getNative().getBounds());
     }
 }