I have a couple of highcharts-react charts where the default zoom level should be 6 months (for the x-axis). There's a solution for using the default Highcharts library, but I don't understand how to do it using React.
This is how far I got:
// …
import Highcharts from "highcharts/highstock";
import HighchartsReact from "highcharts-react-official";
import more from "highcharts/highcharts-more";
// …
if (typeof Highcharts === "object") {
more(Highcharts);
}
// …
<HighchartsReact
highcharts={Highcharts}
constructorType={"stockChart"}
options={{
credits: {
enabled: false
},
xAxis: {
events: {
setExtremes: () => {
// Is this right? What should be in this function?
}
}
},
series: [
{
type: "candlestick",
name: props.timeSeries.name,
data: openHighLowClose
}
]
}}
/>
I see that you are creating a stockChart, so in this case you can set the displaying range with using the rangeSelector feature.
Below is a demo where I set the selected button to 2, which is equal to 6 months by default. More information you can find in the API which I posted above.
Demo: https://codesandbox.io/s/highcharts-react-demo-yjtgj
Related
Currently, the export-data module exports all the series data rather than processedXData and processedYData. However, I grouped the series with dataGrouping and I'd like to export only the processed data.
I'm aware that this question has been asked before (Highstock export csv based on data grouping), but it was in the context of the former export-cvs plugin.
How to modify the 'getDataRows' function in the export-data module for including only the processed data?
Example -> fiddle
Highcharts.getJSON("https://cdn.jsdelivr.net/gh/highcharts/highcharts#v7.0.0/samples/data/usdeur.json",function (data) {
var chart = Highcharts.stockChart("container", {
series: [{
name: "The series",
data: data,
dataGrouping: {
force: true,
units: [["year", [1]]]
}
}
]
});
console.log(chart.getDataRows());
}
);
I have some accessibility modules and I want to make a chart available to screen readers. I started working with the basic description as follows (reference being https://www.highcharts.com/docs/accessibility/accessibility-module#describing-your-chart,):
Code -
this.chart = new Highcharts.Chart('container',{
accessibility: {
description: 'This is the required chart'
},
The narrator isn't reading the text. As per this example : https://jsfiddle.net/gh/get/library/pure/highcharts/highcharts/tree/master/samples/highcharts/accessibility/accessible-bar I also tried specifying the description in series section, but I do not really understand why it is specified in this section.
Code -
},
series: [{
name: chartSeries.success.name,
data:
chartSeries.success.data,
accessibility: {
description: 'This is the required chart'
}
},
I am using the noUISlider in my rails project.
noUiSlider.create( slider, {
start: [3],
connect: 'lower',
step: 1,
range: {
'min': 1,
'max': 9
},
pips: {
mode: 'steps',
density: 20
},
tooltips: true,
format: {
from: function(value) {
return (parseInt(value)+" days");
},
to: function(value) {
return (parseInt(value)+" days");
}
}
});
I want it to be a measure of days in the tooltip. So I added the format part as above. But start: 3 wont work anymore. It starts from 1 instead. If I remove the format, start works fine.
I tried removing the format and editing the noUi-tooltip text property from js (appending "days"), but that doesnt work either.
Any help ?
In format, the from function converts the value from the formatted string to a numerical value. You'll want to cast your input to a number there:
format: {
from: Number,
to: function(value) {
return (parseInt(value)+" days");
}
}
I am trying to use jqplot with Jquery mobile, marionette and requirejs. I have included all jqplot required CSS as well as script files in head tags, but when i am trying to plot a chart using below code
define([ 'jquery', 'plot' ],
function($) {
console.log("Success..Inside Offer Page Script.");
console.log("Plot..."+$.jqplot);
console.log("jquery..."+$);
$.jqplot.config.enablePlugins = true;
var s1 = [ 2, 6, 7, 10 ];
var ticks = [ 'a', 'b', 'c', 'd' ];
plot1 = $.jqplot('chart1', [ s1 ], {
seriesDefaults : {
renderer : $.jqplot.BarRenderer,
pointLabels : {
show : true
}
},
axes : {
xaxis : {
renderer : $.jqplot.CategoryAxisRenderer,
ticks : ticks
}
},
highlighter : {
show : false
}
});
});
it gives me errors like
Uncaught TypeError: undefined is not a function jqplot.barRenderer.js:41
(line 41: $.jqplot.BarRenderer.prototype = new $.jqplot.LineRenderer();)
Uncaught TypeError: Cannot call method 'push' of undefined jqplot.pointLabels.js:377
(line 377: $.jqplot.postSeriesInitHooks.push($.jqplot.PointLabels.init);)
The plot in my above code's define is
define([
'../scripts/ext_libs/jquery.jqplot'
],
function () {
var plot;
require([
'../scripts/ext_libs/jqplot.barRenderer',
'../scripts/ext_libs/jqplot.pointLabels',
'../scripts/ext_libs/jqplot.categoryAxisRenderer',
],
function () {
plot = $.jqplot;
});
return plot;
});
Can anyone please help me how can i solve these errors. Is their a problem using jqplot with requirejs?
Thanks in advance.
I'm not using marionette, but everything else works fine on my side. I have a jqplot module like this:
define([
'../js/plugins/jqplot/jquery.jqplot'
, 'css!../js/plugins/jqplot/jquery.jqplot'
],
function () {
var plot;
require([
'../js/plugins/jqplot/plugins/jqplot.barRenderer'
, '../js/plugins/jqplot/plugins/jqplot.logAxisRenderer'
, '../js/plugins/jqplot/plugins/jqplot.categoryAxisRenderer'
, '../js/plugins/jqplot/plugins/jqplot.canvasAxisTickRenderer'
, '../js/plugins/jqplot/plugins/jqplot.canvasTextRenderer'
, '../js/plugins/jqplot/plugins/jqplot.pointLabels'
, '../js/plugins/jqplot/plugins/jqplot.enhancedLegendRenderer'
],
function () {
plot = $.jqplot;
});
return plot;
}
);
which I'm requiring requiring normally from my page script like this:
require(["plot"], function (plot) {
// do something here with plot or... $.jqplot
};
You should be able to use $.plot right away, because once you require the module, jqplot will be available on $.
EDIT:
Try this:
define([ 'jquery', 'plot' ],
function($) {
console.log("Success..Inside Offer Page Script.");
console.log($);
console.log($.jqplot);
$.jqplot.config.enablePlugins = true;
var s1 = [ 2, 6, 7, 10 ];
var ticks = [ 'a', 'b', 'c', 'd' ];
plot1 = $.jqplot('chart1', [ s1 ], {
seriesDefaults : {
renderer : $.jqplot.BarRenderer,
pointLabels : {
show : true
}
},
axes : {
xaxis : {
renderer : $.jqplot.CategoryAxisRenderer,
ticks : ticks
}
},
highlighter : {
show : false
}
});
});
Bit late to the game but.... above doesn't work because require is async to return, so able to return jqplot without any jqplot plugins loaded! async safe solution below
Nasty problem, as it's a chain of three dependencies
jquery is required for jqplot which is required for jqplot plugins, I have a simpler solution based on the same lines as the one above
first do your requirejs "main.js" config like so
requirejs.config({
paths: {
"jquery": "path/to/jquery-1.10.2.min",
// WORKAROUND : jQuery plugins + shims
"jqplot.core": "path/to/jquery-jqplot-1.0.8.min",
"jqplot": "jquery-jqplot-module-with-plugins-1.0.8"
},
shim: {
"jqplot.core": {deps: ["jquery"]},
"jqplot": {deps: ["jqplot.core"]}
}
});
create a wrapper file module file called "jquery-jqplot-module-with-plugins-1.0.8.js", containing :
// wraps jquery jqplot plugin in define statement
define([
"jquery",
"path/to/jqplot.highlighter.min",
"path/to/jqplot.cursor.min",
"path/to/jqplot.dateAxisRenderer.min",
"path/to/jqplot.canvasTextRenderer.min",
"path/to/jqplot.canvasAxisLabelRenderer.min",
"path/to/jqplot.enhancedLegendRenderer.min",
"path/to/jqplot.pieRenderer.min",
"path/to/jqplot.donutRenderer.min",
], function($) {
var jqplot;
jqplot = $.jqplot;
return jqplot;
});
Then when ever you need jqplot with those plugins, simply call for "jqplot" which will load "jquery" then "jqplot.core" then all the jqplot modules, then finally return the jqplot object :)
require(["jquery", "jqplot"], function ($, $jqplot) {
console.log("Success..Inside Require JS");
console.log("Plot...", $.jqplot, $jqplot);
});
or
define(["jquery", "jqplot"], function ($, $jqplot) {
console.log("Success..Inside Define JS");
console.log("Plot...", $.jqplot, $jqplot);
});
tada! :)
ps jquery plugins are evil, no suggestion how to fix that situation, just a statement of fact
cheers
Ant
Looks like plot is returned before require(...) initializes it. I used to have common solution and my plot was partly populated. I ended up with setting all jqplot plugins in shim and changed my `plot.js' accordingly, as was suggested here.
requirejs.config
shim: {
'jqplot': ['jquery'],
'lib/jquery/jqplot/plugins/jqplot.canvasTextRenderer': ['jqplot'],
'lib/jquery/jqplot/plugins/jqplot.pieRenderer': ['jqplot'],
'lib/jquery/jqplot/plugins/jqplot.barRenderer': ['jqplot'],
'lib/jquery/jqplot/plugins/jqplot.categoryAxisRenderer': ['jqplot'],
'lib/jquery/jqplot/plugins/jqplot.canvasAxisLabelRenderer': ['jqplot'],
'lib/jquery/jqplot/plugins/jqplot.enhancedLegendRenderer': ['jqplot'],
'lib/jquery/jqplot/plugins/jqplot.highlighter': ['jqplot'],
}
plot.js
define(['lib/jquery/jqplot/plugins/jqplot.canvasTextRenderer',
'lib/jquery/jqplot/plugins/jqplot.pieRenderer',
'lib/jquery/jqplot/plugins/jqplot.barRenderer',
'lib/jquery/jqplot/plugins/jqplot.categoryAxisRenderer',
'lib/jquery/jqplot/plugins/jqplot.canvasAxisLabelRenderer',
'lib/jquery/jqplot/plugins/jqplot.enhancedLegendRenderer',
'lib/jquery/jqplot/plugins/jqplot.highlighter'],
function() {
return $.jqplot;
});
I am having multiple highchart charts of various types(Bar,Pie, Scatter type) in a single web page. Currently I am creating config object for each graph like,
{
chart : {},
blah blah,
}
And feeding them to a custom function which will just call HighCharts.chart(). But this results in duplication of code. I want to manage all this chart rendering logic centrally.
Any Idea on how to do this?
You can use jQuery.extend() and Highcharts.setOptions.
So first you'll make the first object which will be extended by all your charts, this object will contain your Highchart default functions.
You can do it using namespacing.
The following way is good when you have very different charts.
Default graphic:
var defaultChart = {
chartContent: null,
highchart: null,
defaults: {
chart: {
alignTicks: false,
borderColor: '#656565',
borderWidth: 1,
zoomType: 'x',
height: 400,
width: 800
},
series: []
},
// here you'll merge the defauls with the object options
init: function(options) {
this.highchart= jQuery.extend({}, this.defaults, options);
this.highchart.chart.renderTo = this.chartContent;
},
create: function() {
new Highcharts.Chart(this.highchart);
}
};
Now, if you want to make a column chart, you'll extend defaultChart
var columnChart = {
chartContent: '#yourChartContent',
options: {
// your chart options
}
};
columnChart = jQuery.extend(true, {}, defaultChart, columnChart);
// now columnChart has all defaultChart functions
// now you'll init the object with your chart options
columnChart.init(columnChart.options);
// when you want to create the chart you just call
columnChart.create();
If you have similar charts use Highcharts.setOptions which will apply the options for all created charts after this.
// `options` will be used by all charts
Highcharts.setOptions(options);
// only data options
var chart1 = Highcharts.Chart({
chart: {
renderTo: 'container1'
},
series: []
});
var chart2 = Highcharts.Chart({
chart: {
renderTo: 'container2'
},
series: []
});
Reference
http://api.highcharts.com/highcharts#Highcharts.setOptions%28%29
COMPLETE DEMO
I know this has already been answered, but I feel that it can be taken yet further. I'm still newish to JavaScript and jQuery, so if anyone finds anything wrong, or thinks that this approach breaks guidelines or rules-of-thumb of some kind, I'd be grateful for feedback.
Building on the principles described by Ricardo Lohmann, I've created a jQuery plugin, which (in my opinion) allows Highcharts to work more seamlessly with jQuery (i.e. the way that jQuery works with other HTML objects).
I've never liked the fact that you have to supply an object ID to Highcharts before it draws the chart. So with the plug-in, I can assign the chart to the standard jQuery selector object, without having to give the containing <div> an id value.
(function($){
var chartType = {
myArea : {
chart: { type: 'area' },
title: { text: 'Example Line Chart' },
xAxis: { /* xAxis settings... */ },
yAxis: { /* yAxis settings... */ },
/* etc. */
series: []
},
myColumn : {
chart: { type: 'column' },
title: { text: 'Example Column Chart' },
xAxis: { /* xAxis settings... */ },
yAxis: { /* yAxis settings... */ },
/* etc. */
series: []
}
};
var methods = {
init:
function (chartName, options) {
return this.each(function(i) {
optsThis = options[i];
chartType[chartName].chart.renderTo = this;
optsHighchart = $.extend (true, {}, chartType[chartName], optsThis);
new Highcharts.Chart (optsHighchart);
});
}
};
$.fn.cbhChart = function (action,objSettings) {
if ( chartType[action] ) {
return methods.init.apply( this, arguments );
} else if ( methods[action] ) {
return methods[method].apply(this,Array.prototype.slice.call(arguments,1));
} else if ( typeof action === 'object' || !action ) {
$.error( 'Invalid arguments to plugin: jQuery.cbhChart' );
} else {
$.error( 'Action "' + action + '" does not exist on jQuery.cbhChart' );
}
};
})(jQuery);
With this plug-in, I can now assign a chart as follows:
$('.columnChart').cbhChart('myColumn', optionsArray);
This is a simplistic example of course; for a real example, you'd have to create more complex chart-properties. But it's the principles that concern us here, and I find that this approach addresses the original question. It re-uses code, while still allowing for individual chart alterations to be applied progressively on top of each other.
In principle, it also allows you to group together multiple Ajax calls into one, pushing each graph's options and data into a single JavaScript array.
The obligatory jFiddle example is here: http://jsfiddle.net/3GYHg/1/
Criticism welcome!!
To add to #Ricardo's great answer, I have also done something very similar. In fact, I won't be wrong if i said I went a step further than this. Hence would like to share the approach.
I have created a wrapper over the highchart library. This gives multiple benefits, following being the main advantages that encouraged going in this path
Decoupling: Decouples your code from highcharts
Easy Upgrades: This wrapper will be the only code that will require modification in case of any breaking changes in highchart api after upgrades, or even if one decides to move to a differnt charting library altogether (even from highchart to highstock can be exhaustive if your application uses charts extensively)
Easy of use: The wrapper api is kept very simple, only things that may vary are exposed as options (That too whose values won't be as a deep js object like HC already has, mostly 1 level deep), each having a default value. So most of the time our chart creation is very short, with the constructor taking 1 options object with merely 4-5 properties whose defaults don't suit the chart under creation
Consistent UX: Consistent look & feel across the application. eg: tool tip format & position, colors, font family, colors, toolbar (exporting) buttons, etc
Avoid duplication: Of course as a valid answer of the asked question it has to avoid duplication, and it does to a huge extent
Here is what the options look like with their default values
defaults : {
chartType : "line",
startTime : 0,
interval : 1000,
chartData : [],
title : "Product Name",
navigator : true,
legends : true,
presetTimeRanges : [],
primaryToolbarButtons : true,
secondaryToolbarButtons : true,
zoomX : true,
zoomY : false,
height : null,
width : null,
panning : false,
reflow : false,
yDecimals : 2,
container : "container",
allowFullScreen : true,
credits : false,
showAll : false,
fontSize : "normal", // other option available is "small"
showBtnsInNewTab : false,
xAxisTitle : null,
yAxisTitle : null,
onLoad : null,
pointMarkers : false,
categories : []
}
As you can see, most of the times, its just chartData that changes. Even if you need to set some property, its mainly just true/false types, nothing like the horror that highchart constructor expects (not critizing them, the amount of options they provide is just amazing from customization Point of View, but for every developer in the team to understand & master it can take some time)
So creation of chart is as simple as
var chart=new myLib.Chart({
chartData : [[1000000,1],[2000000,2],[3000000,1],[4000000,5]]
});