使用FusionCharts时利用XML/JSON属性加载外部LOGO

在使用FusionCharts图表时，你可以在运行时加载外部logo并显示于图表中。logo可以是GIF/JPEG/PNG或SWF文件。你可以使用chart元素的logoURL属性来加载一个logo。

XML

<chart yAxisName='Sales figure' caption='Top 5 Sales Person' numberPrefix='$' useRoundEdges='1' bgColor='FFFFFF,FFFFFF' showBorder='0' exportEnabled='1' exportShowMenuItem='0' logoURL='fusionchartsv3.2-logo.png'>
<set label='Alex' value='25000' />
<set label='Mark' value='35000' />
<set label='David' value='42300' />
<set label='Graham' value='35300' />
<set label='John' value='31300' />
</chart>

JSON

{
"chart":{ "yaxisname":"Sales figure","caption":"Top 5 Sales Person","numberprefix":"$","useroundedges":"1","bgcolor":"FFFFFF","showborder":"0","exportenabled":"1","exportshowmenuitem":"0","logourl":"fusionchartsv3.2-logo.png" },"data":[{ "label":"Alex","value":"25000" },{ "label":"Mark","value":"35000" },{ "label":"David","value":"42300" },{ "label":"Graham","value":"35300" },{ "label":"John","value":"31300" }]
}

预览结果：

值得注意的是，出于安全原因，Flash Player不允许你加载跨域名文件或带有绝对路径的文件。因此，logoUrl文件与图表应属于同一
域，并且应该从相对路径加载。

配置logo位置

外部logo可以通过<logoPosition='TL' ... >属性进行配置，并显示在下列位置：

• TL - Top-left of the chart
• TR - Top-right of the chart
• BL - Bottom-left of the chart
• BR - Bottom-right of the chart
• CC - Center of the chart

配置logo不透明度和大小

一旦加载了logo，就可以在FusionCharts图表中配置其不透明度和大小，具体方式如下：

XML

<chart yAxisName='Sales figure' caption='Top 5 Sales Person' numberPrefix='$' useRoundEdges='1' bgColor='FFFFFF,FFFFFF' showBorder='0' exportEnabled='1' exportShowMenuItem='0' logoURL='fusionchartsv3.2-logo.png' logoPosition='CC' logoAlpha='30' logoScale='110'>
<set label='Alex' value='25000' />
<set label='Mark' value='35000' />
<set label='David' value='42300' />
<set label='Graham' value='35300' />
<set label='John' value='31300' />
</chart>

JSON

{
"chart":{
"yaxisname":"Sales figure","bgcolor":"FFFFFF,FFFFFF","logourl":"fusionchartsv3.2-logo.png","logoposition":"CC","logoalpha":"30","logoscale":"110"
},"data":[{
"label":"Alex","value":"25000"
},{
"label":"Mark","value":"35000"
},{
"label":"David","value":"42300"
},{
"label":"Graham","value":"35300"
},{
"label":"John","value":"31300"
}
]
}

最终带有logo的FusionCharts图表显示结果如下：

将logo与外部URL链接

设置<chart ... logoLink='link in FusionCharts format'>，将logo与外部URL链接起来。此链接可以在同一窗口，新窗口，弹出窗口，框架，甚至调用JavaScript方法来打开。