Set Viz.Frame Legend and X-axis , Y-axis name dynamicaly

Hi Experts , I'm using viz.frame charts and I'm binding dynamicaly it's according to what I clicked and I want to set the Legend and X-axis , Y-axis name dynamicaly also

I passed into the method 3 parameters Data and X-axis name and Y-axis name

	_bindChart: function(Data,Xaxis,Yaxis) {
			
		 
			//      1.Get the id of the VizFrame		
			var oVizFrame = this.getView().byId("idoVizFrame");
			oVizFrame.destroyDataset();
			oVizFrame.removeAllFeeds();
			//      2.Create a JSON Model and set the data
			var oModel = new sap.ui.model.json.JSONModel();
			oModel.setData(Data);
			var oDataset = new sap.viz.ui5.data.FlattenedDataset({
				dimensions: [{
					name: "Date",
					value: "{date}"
				}],


				measures: [{
					name: "Number of Dialog Steps",
					value: "{Value}"
				}],


				data: {
					path: "/CharData"
				}
			});
			oVizFrame.setDataset(oDataset);
			oVizFrame.setModel(oModel);
			oVizFrame.setVizType("line");
			//      4.Set Viz properties
			oVizFrame.setVizProperties({
				title: {
					text: "Number of steps / Date"
				},
				plotArea: {
					colorPalette: d3.scale.category20().range()
				}
			});


			var feedValueAxis = new sap.viz.ui5.controls.common.feeds.FeedItem({
					"uid": "valueAxis",
					"type": "Measure",
					"values": ["Number of Dialog Steps"]
				}),
				feedCategoryAxis = new sap.viz.ui5.controls.common.feeds.FeedItem({
					"uid": "categoryAxis",
					"type": "Dimension",
					"values": ["Date"]
				});
			oVizFrame.addFeed(feedValueAxis);
			oVizFrame.addFeed(feedCategoryAxis);
			// oVizFrame.destroyDataset();
			// Data = {};


		},

Is there anyone how know how to set these 2 parameteres

I hope I clarified my problem enough

thanks for advance