Tengo muchos valores de Json, usándolos voy a crear un gráfico de líneas pero muestra solo un valor en el gráfico. Soy un novato en JavaScript y tengo la idea de trazar todos los valores en el gráfico. por favor, alguien dé un ejemplo de jsfiddle para este problema.

Código HTML

<div id="chartContainer" class="chart">

Guión

$.getJSON('dashboard_summary.php?', function(data) {
    var len = data.length

    $.each(data, function(i, v) {               
        chart(v.Date,v.Tip,v.Revenue,len);
    });
});

function chart (dates,Tip,Rev,len) {    
    var chart = new CanvasJS.Chart("chartContainer", {
        title: {
            text: "Revenue",
            fontSize: 15
        },
        axisX: {
            gridColor: "Silver",
            tickColor: "silver",
            valueFormatString: "DD/MMM"
        },                        
        toolTip: {
            shared:true
        },
        theme: "theme2",
        axisY: {
            gridColor: "Silver",
            tickColor: "silver"
        },
        legend: {
            verticalAlign: "center",
            horizontalAlign: "right"
        },
        data: [
            {                   
                type: "line",
                showInLegend: true,
                lineThickness: 2,
                name: "Tip",
                markerType: "square",
                color: "#F08080",
                dataPoints: [
                    {
                        x: new Date(dates),
                        y: parseInt(Tip)
                    }
                ]
            },
            {        
                type: "line",
                showInLegend: true,
                name: "Revenue",
                color: "#20B2AA",
                lineThickness: 2,
                dataPoints: [
                    {
                        x: new Date(dates),
                        y: parseInt(Rev)
                    }
                ]
            }
        ],
        legend: {
            cursor: "pointer",
            itemclick: function(e) {
                if (typeof(e.dataSeries.visible) === "undefined" || e.dataSeries.visible) {
                    e.dataSeries.visible = false;
                } else {
                    e.dataSeries.visible = true;
                }
                chart.render();
            }
        }
    });

    chart.render();
};

Datos Json

{
    "Date": "2014-01-30",
    "CarsParked": "1",
    "RevenueWithTip": "0",
    "Revenue": "0",
    "Tip": "0",
},
{
    "Date": "2014-01-31",
    "CarsParked": "10",
    "RevenueWithTip": "10",
    "Revenue": "7",
    "Tip": "3",
},
{
    "Date": "2014-02-28",
    "CarsParked": "28",
    "RevenueWithTip": "55",
    "Revenue": "47",
    "Tip": "8",
}