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jqplot not show label end points

when I draw chart using jqplot, both end point of the chart does not show label, and I am not sure why. Please help enter image description here

Here is my code (self-contained code, with all resources loaded)

<html>
<head>
</head>
<body>
    <input id="dashboardForm:j_idt49:4:hiddenChartData" type="text" name="dashboardForm:j_idt49:4:hiddenChartData" value="{&quot;data&quot;:[[843,1312,745,683,832,829,772,740,792,672,550,323]],&quot;dateFull&quot;:[[1,&quot;01/06&quot;],[2,&quot;02/06&quot;],[3,&quot;03/06&quot;],[4,&quot;04/06&quot;],[5,&quot;05/06&quot;],[6,&quot;06/06&quot;],[7,&quot;07/06&quot;],[8,&quot;08/06&quot;],[9,&quot;09/06&quot;],[10,&quot;10/06&quot;],[11,&quot;11/06&quot;],[12,&quot;12/06&quot;]],&quot;tick&quot;:[[1,&quot;01/06&quot;],[2,&quot;02/06&quot;],[3,&quot;03/06&quot;],[4,&quot;04/06&quot;],[5,&quot;05/06&quot;],[6,&quot;06/06&quot;],[7,&quot;07/06&quot;],[8,&quot;08/06&quot;],[9,&quot;09/06&quot;],[10,&quot;10/06&quot;],[11,&quot;11/06&quot;],[12,&quot;12/06&quot;]]}" class="soluongdonhangngay170" style="display:none;"> 
    <div style="height: 550px" class="soluongdonhangngay170170" />


<script type="text/javascript" src="http://app.fahasa.com:8084/ReportEngine/org.richfaces.resources/javax.faces.resource/org.richfaces/jquery.js"></script> 
<script type="text/javascript" src="http://app.fahasa.com:8084/ReportEngine/faces/javax.faces.resource/jquery.jqplot.js?ln=js"></script>    
<script type="text/javascript" src="http://app.fahasa.com:8084/ReportEngine/faces/javax.faces.resource/jqplot/jqplot.dateAxisRenderer.js?ln=js"></script>   
<script type="text/javascript" src="http://app.fahasa.com:8084/ReportEngine/faces/javax.faces.resource/jqplot/jqplot.categoryAxisRenderer.js?ln=js"></script>   
<script type="text/javascript" src="http://app.fahasa.com:8084/ReportEngine/faces/javax.faces.resource/jqplot/jqplot.logAxisRenderer.js?ln=js"></script>    
<script type="text/javascript" src="http://app.fahasa.com:8084/ReportEngine/faces/javax.faces.resource/jqplot/jqplot.canvasTextRenderer.js?ln=js"></script> 
<script type="text/javascript" src="http://app.fahasa.com:8084/ReportEngine/faces/javax.faces.resource/jqplot/jqplot.canvasAxisTickRenderer.js?ln=js"></script> 
<script type="text/javascript" src="http://app.fahasa.com:8084/ReportEngine/faces/javax.faces.resource/jqplot/jqplot.canvasAxisLabelRenderer.js?ln=js"></script>    
<script type="text/javascript" src="http://app.fahasa.com:8084/ReportEngine/faces/javax.faces.resource/jqplot/jqplot.highlighter.js?ln=js"></script>    
<script type="text/javascript" src="http://app.fahasa.com:8084/ReportEngine/faces/javax.faces.resource/jqplot/jqplot.pointLabels.js?ln=js"></script>    
<script type="text/javascript" src="http://app.fahasa.com:8084/ReportEngine/faces/javax.faces.resource/jqplot/jqplot.enhancedLegendRenderer.js?ln=js"></script> 
<script>
jQuery(function(){
    var labels = ["Đơn Hàng Theo Ngày"];
  alert(jQuery(".soluongdonhangngay170").val());
  displayLineChartWithToggleLegend($(".soluongdonhangngay170").val(),$(".soluongdonhangngay170170"), labels, "Số Lượng Đơn Hàng Ngày");
});

function displayLineChartWithToggleLegend(data, target, label, chartTitle){
    if(data === "") return;
    var chartJsonData = $.parseJSON(data);
    var dataPlot = chartJsonData.data;
    var ticks = chartJsonData.tick;
    var showPointLabel = true;
    if(chartJsonData.data.length > 4){
        showPointLabel = false;
    }
    target.jqplot(dataPlot, {
        title: chartTitle,
        animate: true,
        axesDefaults: {
            labelRenderer: $.jqplot.CanvasAxisLabelRenderer
        },
        seriesDefaults: {
            showMarker: true
        },
        legend: {
            show: true,
            renderer: $.jqplot.EnhancedLegendRenderer,
            placement: "outsideGrid",
            labels: label,
            location: "ne",
            rowSpacing: "5px",
            rendererOptions: {
                // set to true to replot when toggling series on/off
                // set to an options object to pass in replot options.
                seriesToggle: 'normal',
                seriesToggleReplot: {resetAxes: true}
            }
        },
        axes: {
            xaxis: {
                label: 'Date',
                ticks: ticks,          
                tickInterval: 20,
                tickOptions: {
                    showGridline: false,
                    angle: -60,
                    fontFamily: 'Helvetica',
                    fontSize: '8pt'
                },                
            }
        },
        grid: {
            drawBorder: false,
            shadow: false,
            // background: 'rgba(0,0,0,0)'  works to make transparent.
            background: "white"
        },
        series: [
            {
                pointLabels: {
                    show: showPointLabel
                },
                rendererOptions: {
                    // speed up the animation a little bit.
                    // This is a number of milliseconds.
                    // Default for a line series is 2500.
                    animation: {
                        speed: 2000
                    },
                    smooth: true
                }
            }
        ]
    });

    target.bind('jqplotDataMouseOver', function(ev, seriesIndex, pointIndex, data) {
        var idx = seriesIndex;
        $('tr.jqplot-table-legend').removeClass('legend-row-highlighted');  
        $('tr.jqplot-table-legend').children('.jqplot-table-legend-label').removeClass('legend-text-highlighted');
        $('tr.jqplot-table-legend').eq(idx).addClass('legend-row-highlighted');
        var dateFull = chartJsonData.dateFull;
        $(this).find(".jqplot-title").html(dateFull[data[0] - 1][1] + " - " + data[1]);
        $('tr.jqplot-table-legend').eq(idx).children('.jqplot-table-legend-label').addClass('legend-text-highlighted'); 
    });

    target.bind('jqplotDataUnhighlight', function(ev, seriesIndex, pointIndex, data) {
        $('tr.jqplot-table-legend').removeClass('legend-row-highlighted');  
        $('tr.jqplot-table-legend').children('.jqplot-table-legend-label').removeClass('legend-text-highlighted');
        $(this).find(".jqplot-title").html(chartTitle);        
    });
}
</script>
</body>
</html>

Answer

I have this issue before but my X-Axis values was numbers and fixed it by adding ratio (Adjustment) about 20% from the max value to just gain more space and that did the trick Here I recommend you to add one more value in the X Values(X Ticks) without a related Value in the Y Values (ticks) to extend (add more space) the X Axis (if you have the same issue with Y Axis use the same technique) Have a look Here on Plunker

<input id="dashboardForm:j_idt49:4:hiddenChartData" type="text" name="dashboardForm:j_idt49:4:hiddenChartData" value="{&quot;data&quot;:[[843,1312,745,683,832,829,772,740,792,672,550,323]],&quot;dateFull&quot;:[[1,&quot;01/06&quot;],[2,&quot;02/06&quot;],[3,&quot;03/06&quot;],[4,&quot;04/06&quot;],[5,&quot;05/06&quot;],[6,&quot;06/06&quot;],[7,&quot;07/06&quot;],[8,&quot;08/06&quot;],[9,&quot;09/06&quot;],[10,&quot;10/06&quot;],[11,&quot;11/06&quot;],[12,&quot;12/06&quot;],[13,&quot;13/06&quot;]],&quot;tick&quot;:[[1,&quot;01/06&quot;],[2,&quot;02/06&quot;],[3,&quot;03/06&quot;],[4,&quot;04/06&quot;],[5,&quot;05/06&quot;],[6,&quot;06/06&quot;],[7,&quot;07/06&quot;],[8,&quot;08/06&quot;],[9,&quot;09/06&quot;],[10,&quot;10/06&quot;],[11,&quot;11/06&quot;],[12,&quot;12/06&quot;]**,[13,&quot;13/06&quot;]**]}" class="soluongdonhangngay170" style="display:none;"> 

Hope this help.