I would like to have a series of data points displayed on my chart but only a specific one that would be "displayed" and draggable. Is this possible ? I'm using Highcharts javascript
Thanks for the help
You can return false from drag and drop event callback functions to prevent dragging.
series: [{
dragDrop: {
draggableY: true
},
point: {
events: {
drag: function() {
if (this.color !== 'red') {
return false;
}
},
drop: function() {
if (this.color !== 'red') {
return false;
}
}
}
},
data: [0, 71.5, {
y: 106.4,
color: 'red'
}, ...
]
}]
Live demo: https://jsfiddle.net/BlackLabel/rx1s73va/
API Reference: https://api.highcharts.com/highcharts/series.line.point.events
Related
I have a map and want to detect whenever it is zoomed or panned by the user. I understand that best way to do this would seem to be with the afterSetExtremes event.
I'm using buttons to zoom but the user can double click to zoom in too and pan.
The event doesn't seem to fire though but I'm not sure what I'm doing wrong or if there is another event I should be using to achieve this. Here's a JSFiddle which is based on one of the Highmaps demos, just with the event added:
https://jsfiddle.net/nbymstxe/
What am I doing wrong?
Highcharts.getJSON('https://cdn.jsdelivr.net/gh/highcharts/highcharts#v7.0.0/samples/data/world-population-density.json', function (data) {
// Prevent logarithmic errors in color calulcation
data.forEach(function (p) {
p.value = (p.value < 1 ? 1 : p.value);
});
// Initialize the chart
Highcharts.mapChart('container', {
chart: {
map: 'custom/world'
},
title: {
text: 'Zoom in on country by double click'
},
mapNavigation: {
enabled: true,
enableDoubleClickZoomTo: true
},
colorAxis: {
min: 1,
max: 1000,
type: 'logarithmic'
},
xAxis: {
events: {
afterSetExtremes() {
console.log("Extremes set");
}
},
},
series: [{
data: data,
joinBy: ['iso-a3', 'code3'],
name: 'Population density',
states: {
hover: {
color: '#a4edba'
}
},
tooltip: {
valueSuffix: '/km²'
}
}]
});
});
I think that you can use the render callback to detect when user has zoomed or panned the chart.
events: {
render() {
console.log(this.mapView)
}
}
Demo: https://jsfiddle.net/BlackLabel/zpn5goaj/
API: https://api.highcharts.com/highcharts/chart.events.render
I am using Highcharts it is working fine but i want to change in pie slice when i click on single pie slice then that slice overlap two slice(right or left slice).
Below is the image attached tha i have done in pie chart.
Below is the image attached of the expexted pie chart result
You can add your own method, which will resize shape on click, for example: http://jsfiddle.net/BlackLabel/8vd6cod1/
function resizeSlice(point, change) {
// Original shape params are stored in shapeArgs:
var shape = point.shapeArgs;
if (point.graphic) {
point.graphic.attr({
// "r" is outer radius:
r: shape.r + change,
// "innerR" is inner radius:
innerR: shape.innerR - change
});
}
}
// Build the chart
Highcharts.chart('container', {
chart: {
type: 'pie',
events: {
// On window resize, apply change:
redraw: function() {
Highcharts.each(this.series[0].points, function(point) {
resizeSlice(point, point.customResized ? 5 : 0)
});
}
}
},
plotOptions: {
pie: {
innerSize: '90%',
cursor: 'pointer',
dataLabels: {
enabled: false
},
point: {
events: {
click: function() {
var change = 0;
// Custom param, can be called whatever we want:
this.customResized = !this.customResized;
if (this.customResized) {
// Let's resize!
change = 5;
}
resizeSlice(this, change);
}
}
}
}
},
series: [{
data: [3, 4, 5, 6]
}]
});
I have make some change to this code for re size all other pie.
: http://jsfiddle.net/8vd6cod1/2/
function resizeSlice(point, change) {
// Original shape params are stored in shapeArgs:
var shape = point.shapeArgs;
if (point.graphic) {
point.graphic.attr({
// "r" is outer radius:
r: shape.r + change,
// "innerR" is inner radius:
innerR: shape.innerR - change
});
}
}
// Build the chart
Highcharts.chart('container', {
chart: {
type: 'pie',
events: {
// On window resize, apply change:
redraw: function() {
Highcharts.each(this.series[0].points, function(point) {
resizeSlice(point, point.customResized ? 5 : 0)
});
}
}
},
plotOptions: {
pie: {
innerSize: '90%',
cursor: 'pointer',
dataLabels: {
enabled: false
},
point: {
events: {
click: function() {
Highcharts.each(this.series.points, function(point) {
resizeSlice(point, 0)
});
var change = 0;
// Custom param, can be called whatever we want:
this.customResized = !this.customResized;
if (this.customResized) {
// Let's resize!
change = 5;
}
resizeSlice(this, change);
}
}
}
}
},
series: [{
data: [3, 4, 5, 6]
}]
});
I have a chart with multiple y axes. I have moved one chart to bottom using top option. When I hover on the graph moved to bottom, shared tooltip does not appear. When I hover on the space just above the bar chart. Space between the bar and 100 (in Y axis), the tool -tip does not appear. Hover on the space right or left to the bar, tool-tip does not appear.
I don't want to have the graph in its default position. It looks cleaner when I have two graphs separated. Can I make the shared tool tip work when graph is moved down ?
My code:
yAxis: [{
top: 148
},
{
top: 0
}],
tooltip: {
shared: true,
crosshairs: {
color: 'rgba(27,161,218,0.5)',
dashStyle: 'solid',
zIndex: -1
}
},
Here is the fiddle: multi-axes graph with positioning
Any input appreciated.
Thanks
Look at using synchronized charts.
http://www.highcharts.com/demo/synchronized-charts
The JSFiddle is updated to use synchronized charts.
JSFiddle
$(function() {
$('#container').bind('mousemove touchmove touchstart', function(e) {
var chart,
point,
i,
event;
for (i = 0; i < Highcharts.charts.length; i = i + 1) {
chart = Highcharts.charts[i];
event = chart.pointer.normalize(e.originalEvent); // Find coordinates within the chart
point = chart.series[0].searchPoint(event, true); // Get the hovered point
if (point) {
point.highlight(e);
}
}
});
/**
* Override the reset function, we don't need to hide the tooltips and crosshairs.
*/
Highcharts.Pointer.prototype.reset = function() {
return undefined;
};
/**
* Highlight a point by showing tooltip, setting hover state and draw crosshair
*/
Highcharts.Point.prototype.highlight = function(event) {
this.onMouseOver(); // Show the hover marker
this.series.chart.tooltip.refresh(this); // Show the tooltip
this.series.chart.xAxis[0].drawCrosshair(event, this); // Show the crosshair
};
/**
* Synchronize zooming through the setExtremes event handler.
*/
function syncExtremes(e) {
var thisChart = this.chart;
if (e.trigger !== 'syncExtremes') { // Prevent feedback loop
Highcharts.each(Highcharts.charts, function(chart) {
if (chart !== thisChart) {
if (chart.xAxis[0].setExtremes) { // It is null while updating
chart.xAxis[0].setExtremes(e.min, e.max, undefined, false, {
trigger: 'syncExtremes'
});
}
}
});
}
}
var dataset = [{
"name": "Series 1",
"type": "column",
"data": [29.9, 71.5, 106.4]
}, {
"name": "Series 2",
"type": "line",
"data": [216.4, 194.1, 95.6]
}];
for (var i = 0; i < dataset.length; i++) {
var dataitem = dataset[i];
$("<div class=\"chart\">")
.appendTo('#container').highcharts({
title: {
text: dataitem.name
},
xAxis: {
categories: ['Jan', 'Feb', 'Mar']
},
tooltip: {
crosshairs: {
color: 'rgba(27,161,218,0.5)',
dashStyle: 'solid',
zIndex: -1
}
},
series: [{
data: dataitem.data,
name: dataitem.name,
type: dataitem.type
}]
});
};
});
Can we disable zoom on highchart graph while graph is loading.
I have multiple graphs therfore would like to disable the zoom option until all graphs gets loaded.
It is possible to change zoomType of a chart dynamically, but it is not a part of official API. That way after all charts are loaded you will be able to change their zoomType from none to some.
$(function () {
$('#container').highcharts({
chart: {
zoomType: ''
},
xAxis: {
minRange: 1
},
series: [{
data: [1,2,3,4,5,6,7]
}]
});
function enableZoom(zoomType) {
var chart = $('#container').highcharts(),
zoomX = /x/.test(zoomType),
zoomY = /y/.test(zoomType);
chart.options.zoomType = zoomType;
chart.pointer.zoomX = zoomX;
chart.pointer.zoomY = zoomY;
chart.pointer.zoomHor = zoomX;
chart.pointer.zoomVert = zoomY;
}
$('#zoomX').click(function () {
enableZoom('x');
});
$('#zoomY').click(function () {
enableZoom('y');
});
$('#zoomXY').click(function () {
enableZoom('xy');
});
$('#noZoom').click(function () {
enableZoom('');
});
});
JSFiddle: http://jsfiddle.net/pearp126/
you can do so by simple setting zoomType as null in your chart config
zoomType: null
See the documentation here for more details
Basically the only thing you need to get done is removing the chart and replacing it with one with the settings you like.
See the code below:
var chart = $('#container').highcharts();
function renderChart(){
chart = new Highcharts.Chart(chart.options);
chart.render();
}
Once you want to enable zooming (or any other setting):
$('#container').highcharts().options.chart.zoomType = 'xy';
renderChart();
To be honest I'm not sure what happens to the old chart. Hopefully it's just overwritten and doesn't it impose a big memory issue.
I created a fiddle you can find here
Basically you can stop the "selection" event (zoom), when the loading label of the chart is displayed.
Using the default Highcharts function .showLoading() for show the loading label, and the default variable loadingShown, for verify is the loading label is displayed or not.
So, by using the function .showLoading(), let's say before doing an AJAX request, and validating with the variable loadingShown if the loading label is displayed or not, we can stop the selection event.
Another way, is to use a thirdparty loading mask, and add it to the chart's container.
In the next example you'll find how to cancel the zoom using the .showLoading() function and how to use jQuery plugin: pLoading https://github.com/joseshiru/p-loading (for show the loading mask)
$(function () {
var setEvents;
var chart;
$.getJSON('https://www.highcharts.com/samples/data/jsonp.php?filename=usdeur.json&callback=?', function (data) {
chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
zoomType: 'x',
events: {
selection: function () {
//Quit the selection event, while the loading spinner is displayed.
if (chart.loadingShown) {
return false;
}
}
}
},
title: {
text: 'USD to EUR exchange rate over time'
},
subtitle: {
text: document.ontouchstart === undefined ?
'Click and drag in the plot area to zoom in' : 'Pinch the chart to zoom in'
},
xAxis: {
type: 'datetime'
},
yAxis: {
title: {
text: 'Exchange rate'
}
},
legend: {
enabled: false
},
plotOptions: {
area: {
fillColor: {
linearGradient: {
x1: 0,
y1: 0,
x2: 0,
y2: 1
},
stops: [
[0, Highcharts.getOptions().colors[0]],
[1, Highcharts.Color(Highcharts.getOptions().colors[0]).setOpacity(0).get('rgba')]
]
},
marker: {
radius: 2
},
lineWidth: 1,
states: {
hover: {
lineWidth: 1
}
},
threshold: null
}
},
series: [{
type: 'area',
name: 'USD to EUR',
data: data
}]
});
});
setEvents = function () {
var $showLoadingBtn = $('.show-loading');
var $hideLoadingBtn = $('.hide-loading');
var $showExternalMask = $('.show-toggle-mask');
var $hideExternalMask = $('.hide-toggle-mask');
$showLoadingBtn.on('click.showLoading', function () {
chart.showLoading();
});
$hideLoadingBtn.on('click.hideLoading', function () {
chart.hideLoading();
});
$showExternalMask.on('click.toggleMask', function () {
$('#container').ploading({action: 'show'});
});
$hideExternalMask.on('click.toggleMask', function () {
$('#container').ploading({action: 'hide'});
});
}();
});
Example in jsfiddle: http://jsfiddle.net/8p2fzbxw/3/
I have a problem with click events on heatmaps: it works only if you click on a tooltip, but not on the chart itself. See the demo http://jsfiddle.net/3UWaA/1/
chart: {
type: 'heatmap',
events: {
click: function(event) {
alert("clicked!");
}
}
}
Any suggestions how to fix this?
Thanks
Add the events into a plotOptions object.
Like this:
plotOptions: {
series: {
events: {
click: function (event) {
alert('event!');
}
}
}
},
Demo: http://jsfiddle.net/robschmuecker/3UWaA/3/
Because click event on chart, works in the plotArea, not on the serie. Heatmap serie overlap plotArea, so click event doesnt work. You need to catch plotOptions event on serie / point.
Try inserting the EVENTS: under series block and disable the tooltip as below:
series:
[
{ name: 'Passed',
borderWidth: '1',
borderColor: '#000000',
cursor: 'pointer',
events:
{
click: function ()
{
alert('wow');
}
},
color:'green',
data: [[0, 1, ''],[0, 2, ''],[0, 3, '']],
dataLabels:
{
enabled: 'true',
color: '#000000'
}
}
]
So when you click the chart itself,click event will work fine.