KendoUI線圖，如何讓標籤不被繪製在圖形之外？

我正在使用KendoUI線圖。我在線條圖上標註了標籤，標籤在頂部切斷。有沒有辦法來防止這種情況？KendoUI線圖，如何讓標籤不被繪製在圖形之外？

KendoUI Line Graph

這裏是一個的jsfiddle項目玩：http://jsfiddle.net/rodneyhickman/2eWYg/1/

這裏是我的標記：

<div style="padding:20px;" > 
    <div id="divChart"></div> 
</div>

這裏是我的腳本：

jQuery('#divChart').kendoChart({ 
seriesDefaults: { 
    type: "line", 
    missingValues: "interpolate" 
}, 
legend: { 
    position: "bottom" 
}, 
tooltip: { 
    visible: true, 
    format: "{0}%" 
}, 
valueAxis: { 
    min: 70, 
    max: 90, 
    plotBands: [{ 
     from: 70, 
     to: 75, 
     color: "#f5f5f5"}, 
    { 
     from: 80, 
     to: 85, 
     color: "#f5f5f5"}, 
    { 
     from: 90, 
     to: 95, 
     color: "#f5f5f5"}] 
}, 
series: [{ 
    type: "line", 
    name: "Product 1", 
    color: "#004990", 
    width: 1, 
    markers: { 
     background: "#004990" 
    }, 
    tooltip: { 
     visible: true, 
     template: "<b>Product 1</b><br/>Current Score: #= value #<br/>#= category # " 
    }, 
    labels: { 
     visible: true 
    }, 
    data: [88.71, 88.87, 88.91, 89.39, 89.44, 89.47, 89.39, 89.38, 89.25, 88.81, 88.9, 88.84, 88.79]}, 
{ 
    type: "line", 
    name: "Market Segment", 
    color: "#da7633", 
    width: 1, 
    markers: { 
     background: "#da7633" 
    }, 
    tooltip: { 
     visible: true, 
     template: "<b>Market Segment</b><br/>Current Score: #= value #<br/>#= category # " 
    }, 
    data: [75.9, 75.58, 75.54, 75.19, 74.9, 74.42, 74.51, 74.72, 74.55, 74.44, 74.15, 73.86, 73.79]}], 
categoryAxis: { 
    labels: { 
     rotation: -45, 
     step: 1, 
     skip: 0 
    }, 
    categories: ["Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", "Jan - 2012", "Feb", "Mar", "Apr"] 
} 
});

來源

2012-05-29 Rodney