ZingChart how to change node on click / select
I am using ZingChart for a standard bar chart. I have a selected state for individual bars working as I would like, but on the one hand. Is there a way to show the value box (set to visible: false globally) to only show the selected node when it is clicked / selected? I was able to make a value box for each node show in a click event I added to call an external function using the changeplot method, but I don't see a similar method for nodes like modifynode. If that's not an option, is there a way to insert a "fake" value field that will be rendered on the fly during a click event and show that this element is displayed above the selected node? Below is the rendering code for the chart in question. Thank you for your time!
zingchart.render({
id: "vsSelfChartDiv",
width: '100%',
height: '100%',
output: 'svg',
data: myChartVsSelf,
events:{
node_click:function(p){
zingchart.exec('vsSelfChartDiv', 'modifyplot', {
graphid : 0,
plotindex : p.plotindex,
nodeindex : p.nodeindex,
data : {
"value-box":{
"visible":true
}
}
});
var indexThis = p.nodeindex;
var indexDateVal = $('#vsSelfChartDiv-graph-id0-scale_x-item_'+indexThis).find('tspan').html();
updateTop(indexDateVal);
}
}
});
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You are probably better off using a shortcut instead of an icon. I've put together a demo here.
I am on the ZingChart team. Feel free to hit me if you have any more questions.
// Set up your data
var myChart = {
"type":"line",
"title":{
"text":"Average Metric"
},
// The label below will be your 'value-box'
"labels":[
{
// This id allows you to access it via the API
"id":"label1",
"text":"",
// The hook describes where it attaches
"hook":"node:plot=0;index=2",
"border-width":1,
"background-color":"white",
"callout":1,
"offset-y":"-30%",
// Hide it to start
"visible":false,
"font-size":"14px",
"padding":"5px"
}
],
// Tooltips are turned off so we don't have
// hover info boxes and click info boxes
"tooltip":{
"visible":false
},
"series":[
{
"values":[69,68,54,48,70,74,98,70,72,68,49,69]
}
]
};
// Render the chart
zingchart.render({
id:"myChart",
data:myChart
});
// Bind your events
// Shows label and sets it to the plotindex and nodeindex
// of the clicked node
zingchart.bind("myChart","node_click",function(p){
zingchart.exec("myChart","updateobject", {
"type":"label",
"data":{
"id":"label1",
"text":p.value,
"hook":"node:plot="+p.plotindex+";index="+p.nodeindex,
"visible":true
}
});
});
// Hides callout label when click is not on a node
zingchart.bind("myChart","click",function(p){
if (p.target != 'node') {
zingchart.exec("myChart","updateobject", {
"type":"label",
"data":{
"id":"label1",
"visible":false
}
});
}
});
<script src='http://cdn.zingchart.com/zingchart.min.js'></script>
<div id="myChart" style="width:100%;height:300px;"></div>
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