diff --git a/web/gui2/src/main/webapp/app/fw/svg/map.service.ts b/web/gui2/src/main/webapp/app/fw/svg/map.service.ts
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+/*
+ * Copyright 2015-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Injectable } from '@angular/core';
+import { GlyphDataService } from './glyphdata.service';
+import { LogService } from '../../log.service';
+
+/**
+ * ONOS GUI -- SVG -- Map Service
+ *
+ * The Map Service provides a simple API for loading geographical maps into
+ * an SVG layer. For example, as a background to the Topology View.
+ *
+ * e.g.  var promise = MapService.loadMapInto(svgLayer, '*continental-us');
+ *
+ * The Map Service makes use of the GeoDataService to load the required data
+ * from the server and to create the appropriate geographical projection.
+ *
+ * A promise is returned to the caller, which is resolved with the
+ *  map projection once created.
+ */
+@Injectable()
+export class MapService {
+
+    constructor(
+        private gds: GlyphDataService,
+//        private q: ??QService??,
+        private log: LogService
+    ) {
+        this.log.debug('MapService constructed');
+    }
+
+}