Support black and white labels at Map of Science's comparison view

productMods/js/visualization/mapofscience/ComparisonScimapWidget.js

@@ -81,7 +81,7 @@ var ComparisonScimapWidget = Class.extend({
 		
 		/* create */
 		if (me.disciplineLabelsControl == null) {
-			me.labelsMarkerManager = new DisciplineLabelsMarkerManager(map);
+			me.labelsMarkerManager = new DisciplineLabelsMarkerManager(map, getDisciplineBlackLabelImageURL);
 			me.disciplineLabelsControl = new CheckBoxPanel({ 
 				map: map,
 				checked: true,

productMods/js/visualization/mapofscience/CustomScimaps.js

@@ -10,6 +10,10 @@ function getDisciplineLabelImageURL(key) {
 	return disciplineLabelImageUrlPrefix + DISCIPLINES[key].image;
 }
 
+function getDisciplineBlackLabelImageURL(key) {
+	return disciplineBlackLabelImageUrlPrefix + DISCIPLINES[key].image;
+}
+
 function createScimapType(map, mapName) {
 	var sciMapTypeOptions = {
 		getTileUrl: function(coord, zoom) {

productMods/js/visualization/mapofscience/MarkerManager.js

@@ -58,9 +58,13 @@ var MarkerManager = Class.extend({
  * Customized Discipline labels MarkerManager for Science map purpose. It is an abstract class 
  */
 var DisciplineLabelsMarkerManager = MarkerManager.extend({
-	init: function(map) {
+	init: function(map, getLabelURL) {
 		this._super();
 		this.map = map;
+		this.getLabelURL = getDisciplineLabelImageURL;
+		if (getLabelURL != null) {
+			this.getLabelURL = getLabelURL;
+		}
 		this.initMarkers(map);
 	},
 	initMarkers: function(map) {
@@ -69,7 +73,7 @@ var DisciplineLabelsMarkerManager = MarkerManager.extend({
 			var opts = {
 					map: map,
 					position: createNoWrapLatLng(discipline.labelLatitude, discipline.labelLongitude),
-					icon: getDisciplineLabelImageURL(id),
+					icon: me.getLabelURL(id),
 					clickable: false
 				};
 			me.addMarker(id, new Marker(opts));

productMods/templates/freemarker/visualization/mapOfScience/mapOfScienceSetup.ftl

@@ -45,6 +45,7 @@ var entityUnmappedJournalsCSVURLPrefix = "${urls.base}${dataVisualizationURLRoot
 var imageFolderPrefix = "${urls.images}/visualization/";
 var mapOfScienceImageFolderPrefix  = imageFolderPrefix + "mapofscience/";
 var disciplineLabelImageUrlPrefix = mapOfScienceImageFolderPrefix + "labels/";
+var disciplineBlackLabelImageUrlPrefix = disciplineLabelImageUrlPrefix + "black/";
 
 var infoIconUrl = "${urls.images}/iconInfo.png";
 var drillDownIconUrl = "${urls.images}/visualization/drill_down_icon.png";