Question

仍然是javascript和html的新手，我已经设法构建了一个简单的计算器，它也会绘制一些输出。为此，我使用下面的chartjs模板。我希望能够更改y轴，标题和图例的字体，因为它在创建时看起来真的“波涛汹涌”，但是，我不知道在哪里找到/定义适当的参数和什么他们将是。另外，如果图表标题变得很长，我将如何将图表标题换行到第二行？我可以在脚本中指定这些项目，还是必须操作dx.chartjs文件，如果是，我还需要在哪里进行更改？

非常感谢你的帮助

<html>
<head>
<title> Savings </title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">

    <script src="js/jquery-1.10.2.min.js"></script>
    <script src="js/knockout-3.0.0.js"></script>
    <script src="js/globalize.min.js"></script>
    <script src="js/dx.chartjs.js"></script>
</head>

<script language="javascript">

function btnCalculateTotal_Click()
{

houses = 0;
cars = 0;

houses = Number(frmSimpleCalculator.txtValue1.value);
cars = Number(frmSimpleCalculator.txtValue2.value);
sngTotal = houses + cars
frmSimpleCalculator.txtTotal.value = sngTotal;

test = 200
var dataSource = [{ savings: "", Houses: sngTotal, Cars: 300 },];

$("#chartContainer").dxChart({
dataSource: dataSource,
commonSeriesSettings: {
    argumentField: "savings",
    type: "bar",
    hoverMode: "allArgumentPoints",
    selectionMode: "allArgumentPoints",
    label: {
        visible: true,
        format: "fixedPoint",
        precision: 0
            }
                      },
series: [
    { valueField: "Houses", name: "Houses" },
    { valueField: "Cars", name: "Cars" }
        ],

title: "Savings potential",
legend: {
    verticalAlignment: "bottom",
    horizontalAlignment: "center"
        },

pointClick: function (point) {
    this.select();
                             }
                        });
}


</script>

<body bgcolor="#aaaaaa">

<table style="background-color:black; color:white; width:800">
<tr>
<td>
<strong>calculator</strong>
</td>
</tr>
</table>

<form name="frmSimpleCalculator" action="" method="get">
<fieldset name="fraSimpleCalculator" style="width:1">
<legend>Economic Savings Calculator</legend>
<table width="300" border="0">

<!-- Value 1 -->
<tr>
<td align="left">
Houses:
</td>
<td align="right">
<input type="text" value="50000" name="txtValue1" size="10" maxlength="10" style="text-align:right">
</td>
</tr>

<!-- Value 2 -->
<tr>
<td align="left">
Cars:
</td>
<td align="right">
<input type="text" value="25" name="txtValue2" size="10" maxlength="10" style="text-align:right">
</td>
</tr>

<!-- Horizontal rule -->
<tr>
<td align="center" colspan="2">
<hr />
</td>
</tr>

<!-- Total -->
<tr>
<td align="left">
Total:
</td>
<td align="right">
<input type="text" value="0" name="txtTotal" size="10" maxlength="5" style="text-align:right">
</td>
</tr>

<!-- Calculate Button -->
<tr>
<td align="center" colspan="2">
<input type="button" value="Calculate Total" name="btnCalculateTotal" style="width:150" OnClick="btnCalculateTotal_Click();">
</td>
</tr>

<!-- Calculate Chart Button -->
<tr>
<td align="center" colspan="2">
<input type="button" value="Update Chart" name="btnCalculateChart" style="width:150" OnClick="Thomas();">
</td>
</tr>


    <div class="content">
        <div class="pane">
            <div class="long-title"><h3></h3></div>
            <div id="chartContainer" style="width: 250px; height: 440px;" style="position:absolute; TOP:200px; LEFT:350px"></div>       
        </div>
    </div>
</body>
</html>

Answer 1

1）您可以通过相应选项'element

的“font”属性设置标题，图例和轴的字体选项

legend: {
   font: {
      color: 'black',
      family: 'Zapf-Chancery, cursive',
      opacity: 1,
      weight: 700
    }
}

您可以在ChartJS documentation中找到更多示例。

2）您可以使用HTML标记 br 将标题包装到第二行

title: "This is my<br/>long title"

如何在chartjs模板上更改轴，标题和图例格式

1 个答案: