Develop Reference

Changing xaxis label from echarts library

var data = [];
var dataCount = 10;
var startTime = +new Date();
var categories = ['categoryA', 'categoryB', 'categoryC'];
var types = [
{name: 'JS Heap', color: '#7b9ce1'},
{name: 'Documents', color: '#bd6d6c'},
{name: 'Nodes', color: '#75d874'},
{name: 'Listeners', color: '#e0bc78'},
{name: 'GPU Memory', color: '#dc77dc'},
{name: 'GPU', color: '#72b362'}
];
// Generate mock data
echarts.util.each(categories, function (category, index) {
var baseTime = startTime;
for (var i = 0; i < dataCount; i++) {
var typeItem = types[Math.round(Math.random() * (types.length - 1))];
var duration = Math.round(Math.random() * 10000);
data.push({
name: typeItem.name,
value: [
index,
baseTime,
baseTime += duration,
duration
],
itemStyle: {
normal: {
color: typeItem.color
}
}
});
baseTime += Math.round(Math.random() * 2000);
}
});
function renderItem(params, api) {
var categoryIndex = api.value(0);
var start = api.coord([api.value(1), categoryIndex]);
var end = api.coord([api.value(2), categoryIndex]);
var height = api.size([0, 1])[1] * 0.6;
var rectShape = echarts.graphic.clipRectByRect({
x: start[0],
y: start[1] - height / 2,
width: end[0] - start[0],
height: height
}, {
x: params.coordSys.x,
y: params.coordSys.y,
width: params.coordSys.width,
height: params.coordSys.height
});
return rectShape && {
type: 'rect',
shape: rectShape,
style: api.style()
};
}
option = {
tooltip: {
formatter: function (params) {
return params.marker + params.name + ': ' + params.value[3] + ' ms';
}
},
title: {
text: 'Profile',
left: 'center'
},
dataZoom: [{
type: 'slider',
filterMode: 'weakFilter',
showDataShadow: false,
top: 400,
height: 10,
borderColor: 'transparent',
backgroundColor: '#e2e2e2',
handleIcon: 'M10.7,11.9H9.3c-4.9,0.3-8.8,4.4-8.8,9.4c0,5,3.9,9.1,8.8,9.4h1.3c4.9-0.3,8.8-4.4,8.8-9.4C19.5,16.3,15.6,12.2,10.7,11.9z M13.3,24.4H6.7v-1.2h6.6z M13.3,22H6.7v-1.2h6.6z M13.3,19.6H6.7v-1.2h6.6z', // jshint ignore:line
handleSize: 20,
handleStyle: {
shadowBlur: 6,
shadowOffsetX: 1,
shadowOffsetY: 2,
shadowColor: '#aaa'
},
labelFormatter: ''
}, {
type: 'inside',
filterMode: 'weakFilter'
}],
grid: {
height:300
},
xAxis: {
min: startTime,
scale: true,
axisLabel: {
formatter: function (val) {
return Math.max(0, val - startTime) + ' ms';
}
}
},
yAxis: {
data: categories
},
series: [{
type: 'custom',
renderItem: renderItem,
itemStyle: {
normal: {
opacity: 0.8
}
},
encode: {
x: [1, 2],
y: 0
},
data: data
}]
};
Hi, everyone!! I am working on the echarts library, the only thing i want to change data is the axisLabel from Xaxis part.
What i mean is, for example, "2019-11-5, 2019-11-6...."and so on. So, i hope someone can help me out, thank you so much!!!
Hi, everyone!! I am working on the echarts library, the only thing i want to change data is the axisLabel from Xaxis part.
What i mean is, for example, "2019-11-5, 2019-11-6...."and so on. So, i hope someone can help me out, thank you so much!!!

First, create an array of dates like
var dates = ['2019-11-5','2019-10-3','2019-2-2','2019-1-4','2019-12-5'];
then in xAxis -> axisLabel return date
axisLabel: {
formatter: function (val,index) {
return dates[index];
}
}

Uncaught SyntaxError: Unexpected token ) when plotting a js chart

Uncaught SyntaxError: Unexpected token )
I get the above mentioned error in the following file (script):
var Alpha_access = c3.generate({
bindto: '#alpha_access',
data: {
url: '../static/CSV/Chart_data/alpha_access.csv?rnd='+(new Date).getTime(),
x: 'Access grade',
types: {
Alpha:'scatter',
Regression: 'line'
},
},
axis: {
y: {
label: {
text: "Alpha",
position: "outer-middle"
},
min: 0.1,
max: 0.9,
padding: {top: 46},
tick: {outer: false}
},
x: {
label: {
text: "Access grade PAU",
position: "outer-center"
},
min: 9,
max: 14,
padding: {right: 0.2,left:0.15},
tick: {
outer: false,
count:1,
fit:false,
values: [9,10,11,12,13,14]
}
}
},
size: {
height: 400,
width: 800
},
zoom: {
enabled: true
},
legend: {
show: true,
position: 'bottom'
}
})
d3.csv('../static/CSV/Chart_data/alpha_access.csv?rnd='+(new Date).getTime(),function(data){
var d1 = data[0];
var d2 = data[1];
var a = (d2["Regression"] - d1["Regression"])/(d2["Access grade"] - d1["Access grade"]);
var b = d2["Regression"] - (d2["Access grade"]*a);
b = (Math.round(b*1000)/1000);
a = (Math.round(a*1000)/1000);
document.getElementById("equation2").innerHTML = "Alpha = " + a + "·Acces grade PAU + " + b;
})
I have a file which does exactly the same with another parameter (instead of alpha) and works fine. I have compared and reviewed the script and it looks fine. Any ideas?

HighCharts onClick get column data on Stacked Column Chart

I have a stacked Column chart which gives my a list of columns. Each column has a name.
What I need to is is to get the name of the column that has been clicked on.
I have a couple of alerts in the series section which is where I want to data to be called from.
Here is the code:
var chart;
$(function () {
$.ajax({
url: 'url here',
method: 'GET',
async: false,
success: function(result) {
themainData = result;
}
});
var mainData = [themainData];
var chlist=[];
var votList=[];
var comList=[];
for (var i = 0; i < mainData[0].cha.length; i++) {
var obj = mainData[0].cha[i];
var chlst = obj.name;
var vl = obj.sta.vot;
var cl = obj.sta.com;
chlist.push(chlst);
votList.push(vl);
comList.push(cl);
}
//var chlist = ['Ch 1', 'Ch 2', 'Ch 3', 'Ch 4'];
////var votList = [10, 9, 8, 7];
//var comList = [10, 9, 8, 7];
var chart = {
type: 'column',
};
var title = {
text: 'vot and com'
};
var xAxis = {
categories: chlist
};
var yAxis ={
min: 0,
title: {
text: 'cha'
},
stackLabels: {
enabled: true,
style: {
fontWeight: 'bold',
color: (Highcharts.theme && Highcharts.theme.textColor) || 'gray'
}
}
};
var legend = {
align: 'right',
x: -30,
verticalAlign: 'top',
y: 25,
floating: true,
backgroundColor: (Highcharts.theme && Highcharts.theme.background2) || 'white',
borderColor: '#CCC',
borderWidth: 1,
shadow: false
};
var tooltip = {
formatter: function () {
return '<b>' + this.x + '</b><br/>' +
this.series.name + ': ' + this.y + '<br/>' +
'Total: ' + this.point.stackTotal;
}
};
var plotOptions = {
column: {
stacking: 'normal',
dataLabels: {
enabled: true,
color: (Highcharts.theme && Highcharts.theme.dataLabelsColor) || 'white',
style: {
textShadow: '0 0 3px black'
}
}
}
};
var credits = {
enabled: false
};
var series= [{
name: 'vot',
data: votList,
events: {
click: function (event) {
alert('vot Here');
alert ('show: '+ this.cha +', value: '+ this.y);
}
}
}, {
name: 'com',
data: comList,
events: {
click: function (event) {
alert('com Here');
alert ('show: '+ this.cha +', value: '+ this.y);
}
}
}];
var json = {};
json.chart = chart;
json.title = title;
json.xAxis = xAxis;
json.yAxis = yAxis;
json.legend = legend;
json.tooltip = tooltip;
json.plotOptions = plotOptions;
json.credits = credits;
json.series = series;
$('#container').highcharts(json);
//end
});
How can I do this?

You can add column.point.click event callback function and inside this function alert points name using alert(this.name)
plotOptions: {
column: {
stacking: 'normal',
keys: ['x', 'y', 'name'],
point: {
events: {
click: function() {
alert(this.name)
}
}
}
}
},
Here you can find an example how it can work:
http://jsfiddle.net/grz4zaLc/1/

jqplot chart with data from variable and data from JSON

I'm trying to load data into a jqplot chart via variable, but it's only displaying the first value. I'm lost at to why is doing this.
JavaScript:
$(document).ready(function () {
var sin = [[20, 10, 0, 10, 15, 25, 35, 50, 48, 45, 35, 30, 15, 10]];
var plot = $.plot($(".chart"),
[{ data: sin, label: "sin(x)", color: "#ee7951" }], {
series: {
lines: { show: true },
points: { show: true }
},
grid: { hoverable: true, clickable: true },
yaxis: { min: 0, max: 60 }
});
var previousPoint = null;
$(".chart").bind("plothover", function (event, pos, item) {
if (item) {
if (previousPoint != item.dataIndex) {
previousPoint = item.dataIndex;
$('#tooltip').fadeOut(200, function () {
$(this).remove();
});
var x = item.datapoint[0].toFixed(2),
y = item.datapoint[1].toFixed(2);
maruti.flot_tooltip(item.pageX, item.pageY, item.series.label + " of " + x + " = " + y);
}
} else {
$('#tooltip').fadeOut(200, function () {
$(this).remove();
});
previousPoint = null;
}
});
});
maruti = {
flot_tooltip: function (x, y, contents) {
$('<div id="tooltip">' + contents + '</div>').css({
top: y + 5,
left: x + 5
}).appendTo("body").fadeIn(200);
}
}
</script>
Ultimately, I would prefer to use JSON format data and use the first value for the chart and the second for the axis.
Data:
[["50.00","3/18/2015 2:00:00 PM"],["37.00","3/12/2015 3:42:44 PM"],["35.00","3/11/2015 3:42:44 PM"]]
Any recommendations or link to samples using this type of data would be greatly appreciated.

The string format was wrong. I ended up using Entity Framework.
So my code behind looks something like:
using (myEntities myEntitiesContainer = new myEntities())
{
var alldata = myEntitiesContainer.myData(id).ToList();
foreach (myData i in alldata)
{
if (alldata.IndexOf(i) == alldata.Count - 1)
{
sb.Append("['").Append(i.DateData.ToString("yyyy-MM-dd HH:mmtt")).Append("', ").Append(i.SomeData.ToString()).Append("]");
}
else
{
sb.Append("['").Append(i.DateData.ToString("yyyy-MM-dd HH:mmtt")).Append("', ").Append(i.SomeData.ToString()).Append("], ");
}
}
myReturnString = sb.ToString();
}
The return string:
[['2015-03-31 16:00PM', 30.00], ['2015-03-31 14:00PM', 40.00], ['2015-03-31 13:00PM', 50.00]]
The Javascript looks like:
var renderGraph = function () {
var plot
var line1 =
plot = $.jqplot('chart', [line1], {
axes: {
xaxis: {
renderer: $.jqplot.DateAxisRenderer,
tickOptions: { min: 0, formatString: '%b %#d' },
tickInterval: '1 day'
},
yaxis: {
tickOptions:{ formatString: '%d'}
}
},
highlighter: {
show: true,
yvalues: 1,
xvalues: 1,
formatString: 'Date: %s Level: %s'
},
cursor: {
show: false,
tooltipLocation: 'sw'
},
legend: {
show: false
}
});
}

highcharts / highstock doesn't show markers after 500 pts

It seems that over 500 points causes our highstocks markers not to show at all - you can see
http://www.ethnographicedge.com/topic/senkaku-trial-400/ (400 pts) vs http://www.ethnographicedge.com/topic/senkaku-trial-600-s1/ (600pts). The data that's not showing is the "event" represented by the green sphere.
I've looked into editing the turboThreshold, but no luck..
Here's a simplified jsfiddle, and my full code below:
jsfiddle.net/marquex/etdL7/1
when you change the var points = 200; to 400, the red dot doesn't display. Is there a way to force certain mandatory points to show, regardless of the data size?
graphdata = <?php echo topic_data(get_the_ID()); ?>;
extradata = <?php echo extra_data(get_the_ID()); ?>;
eventdata = <?php global $events; echo json_encode($events) ?>;
eventdata.sort(function(a,b){
return a.date - b.date;
});
;(function($){
var parseData,
container = $('#graphcontainer'),
last = false,
m_names = new Array("January", "February", "March",
"April", "May", "June", "July", "August", "September",
"October", "November", "December");
;
if(! container.length)
return;
getEventPoint = function(e,idx){
var color = 'gray';
if(e.forecast == 'fore_successful_down')
color = 'red';
else if(e.forecast == 'fore_successful_up')
color = 'green';
return {
x: parseInt(e.stringdate),
y: parseInt(e.value),
marker: {
enabled: true,
radius:8,
fillColor: color,
lineWidth:3,
lineColor: 'white',
states: {
hover: {
enabled: true,
radius:8,
fillColor: 'white',
lineWidth:3,
lineColor: color
}
}
},
name: idx
}
}
dateDay = function(day){
if( day % 10 == 1)
return day + 'st';
if( day % 10 == 2)
return day + 'nd';
if( day % 10 == 3)
return day + 'rd';
return day + 'th';
}
formatDate = function(timestamp){
var date = new Date(timestamp);
return m_names[date.getMonth()] + ' ' + date.getDay() + ', ' + date.getFullYear();
}
tooltipFormatter = function(data){
var point = data.points[0],
name = point.point.name,
output = '<div class="tooltip-date">' + formatDate(data.x) + '</div><div class="tooltip-value"><span class="tooltip-unit"><?php the_field("value_text") ?>:</span> ' + data.y + '</div>';
if(typeof name !== "undefined"){
var e = eventdata[name];
return '<div class="tooltip-date">' + formatDate(data.x) + '</div>' +
'<div class="tooltip-title">' + e.number + '</div>' +
'<div class="tooltip-trend tooltip-' + e.trend + '"></div> <!-- I will resize the image > background-size: -->' +
'<div class="tooltip-cycle">' + e.cycle + '</div>';
}
if(data.points[1])
output += '<div class="tooltip-secondary><div class="tooltip-value"><span class="tooltip-unit"><?php the_field("extra_value_text") ?>:</span> ' + data.points[1].y + '</div>'
return output;
}
parseData = function(data, eventsData){
var parsedData = [],
eventIdx = 0,
events = eventsData ? eventsData.slice(0) : [],
e = events[0]
;
if(e)
e.stringdate = (new Date(e.date.substring(0,4) + '/' + e.date.substring(4,6) + '/' + e.date.substring(6,8))).getTime();
for (var i = 0; i < data.length; i++) {
var item = data[i],
timestamp = false;
if(item.date && item.date.match(/^\d{4}\/\d{2}\/\d{2}$/) && item.value && parseFloat(item.value) == item.value){
timestamp = (new Date(item.date)).getTime();
if(e && timestamp > e.stringdate > last) {
parsedData.push(getEventPoint(e, eventIdx));
parsedData.push([timestamp, parseFloat(item.value)]);
e = events[++eventIdx];
if(e)
e.stringdate = (new Date(e.date.substring(0,4) + '/' + e.date.substring(4,6) + '/' + e.date.substring(6,8))).getTime();
}
else if(e && timestamp == e.stringdate) {
parsedData.push(getEventPoint(e, eventIdx));
e = events[++eventIdx];
if(e)
e.stringdate = (new Date(e.date.substring(0,4) + '/' + e.date.substring(4,6) + '/' + e.date.substring(6,8))).getTime();
}
else
parsedData.push([timestamp, parseFloat(item.value)]);
}
};
while(e){
parsedData.push(getEventPoint(e, eventIdx));
e = events[++eventIdx];
if(e)
e.stringdate = (new Date(e.date.substring(0,4) + '/' + e.date.substring(4,6) + '/' + e.date.substring(6,8))).getTime();
}
return parsedData;
};
var series = [{
name: 'Topic Data',
data: parseData(graphdata, eventdata),
color: '#666'
}];
if(extradata && extradata.length){
series.push({
name: 'Extra Data',
data: parseData(extradata),
yAxis: 1,
color: '#fbb800'
});
}
var yAxis = [{
title: {
text: '<?php the_field("value_text") ?>',
style: { color: '#BBBBBB', fontSize: '1.2em' },
margin: 12,
},
labels: {
enabled: false,
formatter: function() {
return this.value
}
},
height: 300,
lineColor: '#FFFFFF'
}];
if(extradata && extradata.length){
yAxis[0].lineWidth = 2;
yAxis.push({
title: {
text: '<?php the_field("extra_value_text") ?>'
},
height: 200,
top:350,
offset:0,
lineWidth:2,
lineColor: '#FFFFFF'
});
}
container.highcharts('StockChart', {
chart: {
type: 'spline',
events: {
load: function(e){
$('#tapapubli')
.detach()
.addClass('tapapubli')
.appendTo('#graphcontainer');
}
}
},
rangeSelector: {
enabled: false,
buttons:[
{
type: '<?php echo $initial_zoom["type"] ?>',
count: <?php echo $initial_zoom["count"] ?>,
text: 'Initial'
},
{
type: 'All',
text: 'Reset'
}
],
},
scrollbar: {
enabled: false,
},
navigator: {
maskFill: 'rgba(170, 170, 170, 0.75)',
series: {
color: '#FFD600',
lineColor: '#AE8800'
}
},
xAxis: {
labels: {
enabled: false
},
lineColor: '#FFF', /* BITBUCKET */
tickColor: '#666666',
tickLength: 0,
tickWidth: 1,
tickPosition: 'outside',
type: 'datetime',
dateTimeLabelFormats: { // don't display the dummy year
day: '%e of %b',
}
},
yAxis: yAxis,
plotOptions: {
lineColor: 'green',
spline: {
lineWidth: 3,
states: {
hover: {
lineWidth: 3
}
},
marker: {
enabled: false
},
pointInterval: 36000000000,
point: {
events: {
click: function(){
//console.log(this);
if(this.name)
window.location.href = '#event-' + eventdata[this.name].number;
}
}
}
}
},
series: series,
tooltip: {
formatter: function(){
return tooltipFormatter(this);
},
useHTML: true,
borderColor: '#333',
shadow: false,
borderRadius: 0
}
});
if(!window.chart)
window.chart = container.highcharts();
})(jQuery);
var getPointRecursive = function(date, list){
if(list.length < 5){
var found = false;
for (var i = 0; i < list.length; i++) {
var point = list[i];
};
}
}
var getSeriesPoint = function(date){
}

As #Sebastian Bochan said, you just need to set plotOptions.series.dataGrouping.enabled = false explicitly. Then the problem will disappear.