There's too much padding on either side of the area chart and minPadding/maxPadding doesn't work with categories.
I want the area chart to start and end without any padding.
My code is below:
http://jsfiddle.net/nx4xeb4k/1/
$('#container').highcharts({
chart: {
type: 'area',
inverted: false
},
title: {
text: 'Too Much Padding On Either Side'
},
plotOptions: {
series: {
fillOpacity: 0.1
}
},
xAxis: {
type: 'category'
},
yAxis: {
title: {
text: 'Data Point'
}
},
legend: {
enabled: false
},
tooltip: {
pointFormat: '<b>{point.y}</b> points'
},
series: [{
name: 'Visits',
data: [
["Monday", 58],
["Tuesday", 65],
["Wednesday", 55],
["Thursday", 44],
["Friday", 56],
["Saturday", 65],
["Sunday", 69]
],
dataLabels: {
enabled: false,
rotation: -90,
color: '#FFFFFF',
align: 'right',
format: '{point.y:.1f}',
y: 10,
style: {
fontSize: '14px',
fontFamily: 'Verdana, sans-serif'
}
}
}]
});
A colleague of mine solved this very situation for some of my charts. Their solution was to remove the type: 'category' from the x-axis (making it a linear type instead) and instead replace the axis labels from an array.
Here's what's been changed:
First, I added an array of your x-axis labels.
var categoryLabels = ["Monday","Tuesday","Wednesday","Thursday","Friday",
"Saturday","Sunday"];
Next, I updated your series values to hold only the y-axis values.
series: [{
name: 'Visits',
data: [58, 65, 55, 44, 56, 65, 69],
Then, for your x-axis, I included a formatter function to pull in the labels from the array as substitutes for the default linear values.
xAxis: {
labels: {
formatter: function(){
return categoryLabels[this.value];
}
}
},
Lastly, I updated the tooltip options to show the values from the labels array.
tooltip: {
formatter: function () {
return categoryLabels[this.x] + ': ' + Highcharts.numberFormat(this.y,0);
}
},
I updated your fiddle with this tweaks: http://jsfiddle.net/brightmatrix/nx4xeb4k/4/
I hope you'll find this solution as useful as I have!
According to API, the default value of highcharts.xAxis.tickmarkPlacement is between and this is why the point of each category drops between two ticks on xAxis in your chart.
By setting highcharts.xAxis.tickmarkPlacement to on and playing around the value of highcharts.xAxis.min and highcharts.xAxis.max like this, you should be able to achieve what you want.
You can declare the min / max values to fix the problem.
var categoryLabels = ["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"];
//....
xAxis: {
min: 0.49,
max: categoryLabels.length - 1.49,
categories: categoryLabels,
type: 'category'
},
Example:
http://jsfiddle.net/fo04m7k7/
Related
I want to integrate graph into my website with positive & negative values. If the value is negative then It will go into a red section, if no is positive then it will go into green section.
Right now I am unable to find such type of graph library in javascript, what will be the exact name of this type of graph?
Please let me know the solution.
You can create this type of chart by using Highcharts. Please check the example below:
Highcharts.chart('container', {
chart: {
inverted: true,
height: 80,
events: {
load: function() {
var yAxis = this.yAxis[0],
y = this.plotTop + this.plotHeight / 2,
center = yAxis.toPixels(0);
this.renderer.path([
'M', this.plotLeft, y, 'L', center, y
]).attr({
'stroke-width': 1,
stroke: 'red'
}).add();
this.renderer.path([
'M', center, y, 'L', this.plotSizeY + this.plotLeft, y
]).attr({
'stroke-width': 1,
stroke: 'green'
}).add();
}
}
},
title: {
text: ''
},
credits: {
enabled: false
},
legend: {
enabled: false
},
yAxis: {
title: {
text: ''
},
tickPositions: [-18, 0, 27],
gridLineWidth: 2
},
xAxis: {
visible: false
},
series: [{
type: 'scatter',
data: [21],
marker: {
fillColor: 'orange',
radius: 10
}
}]
});
Live demo: http://jsfiddle.net/BlackLabel/x9vo0tr6/
API: https://api.highcharts.com/highcharts
The closest name I've found is just a "number line", and it looks like this JavaScript library has a specific example of it:
https://jsxgraph.uni-bayreuth.de/wiki/index.php/Number_line
But I think in general you're better off building a custom one-dimensional plot of sorts, with D3.js, for example.
I want to create a stacked column chart using highcharts.js with datetime data
It works on line type, but not working on column. The result were flat 100%.
What i need is the chart will appear as stacked column. what do i missed?
I tried stacked: 'normal' on plotOptions, but still not working.
Please advise, thank you
My highcharts options:
var optionsProcessTime = {
global: {
useUTC: false
},
title: {
text: '',
x: -20 //center
},
subtitle: {
text: '',
x: -20
},
xAxis: {
categories: [],
labels:{
formatter: function(){
return '#'+this.value;
}
}
},
yAxis: {
title: {
text: ''
},
type: 'datetime',
dateTimeLabelFormats: {
millisecond: '%H:%M:%S',
second: '%H:%M:%S',
minute: '%H:%M:%S',
hour: '%H:%M:%S'
},
labels:{
format: '{value:%H:%M:%S}'
},
gridLineWidth: 0
},
tooltip: {
enabled: true,
type: 'datetime',
formatter: function(){
return Highcharts.dateFormat('%H:%M:%S',new Date(this.y))
}
},
legend: {
enabled : false
},
plotOptions: {
series: {
pointPadding: 0.05,
groupPadding: 0
},
column: {
stacking: 'normal'
},
line: {
marker: {
radius: 2,
fillColor: '#ad050b'
},
dashStyle: 'ShortDash',
lineWidth: 1,
}
},
series: []
}
My Json output:
[{
"name":"Checker",
"data":[86,87,91,92,93,94,99,100,101]},
{
"name":"Estimate",
"type":"column",
"data":[1517018400000,1517014800000,1517014800000,1517018400000,1517017200000,1517015700000,1517013900000,1517013900000,1517013900000]},
{
"name":"Process",
"type":"column",
"data":[1517018400000,1517013666000,1517014800000,1517016664000,1517015107000,1517014984000,1517013604000,1517013900000,1517013900000]
}]
I suggest to disable, for debugging only, your definition for yAxis.labels. You will see original labels and realize how it works :)
In short, stacking renders each value on top of the previous one, for example: 1517018400000 + 1517018400000 = 3034036800000 so it renders point in 2066 year. And since all columns starts from zero (0) the distance is quite big: 136 years. Take a look: http://jsfiddle.net/BlackLabel/L4Lgbvvm/45/
Why it works for a line chart then? Simply, line type doesn't start at zero as column does. You can achieve the same result (without stacking) for column too, by setting series.threshold to null: http://jsfiddle.net/BlackLabel/n1s4sqps/
What about stacking? I'm not sure how this should work.. it works the same way for columns and lines, compare stackings:
line: http://jsfiddle.net/BlackLabel/n1s4sqps/1/
column: http://jsfiddle.net/BlackLabel/n1s4sqps/2/
If you could explain how stacking should be rendered in your opinion, let me know, maybe we can find some solution for it. An image of such stacking would be great.
I have been working on a project that uses highchart to draw multiple line charts. With that, I have already achieved some configuration (eg. x-axis crosshair, fixed tooltip, zooming) for my chart in accordance to the business requirements. As such, one requirement is that when x-axis crosshair moves from left to right (or vice versa) within the plotted chart, the selected values on y-axis and dates and time on x-axis will be displayed in the fixed tooltip.
Example:
Series CDT158 has a value of 100.46 (as shown in Chart 1) on 27 Apr 2017 20:49:48 pm. When I move the x-axis crosshair to the right, it jumps directly to the next point which has a value of 103.47 (as shown in Chart 2) on 27 Apr 2017 20:50:38 pm.
Is it possible when the crosshair passes through the series (from one point to the next point), the y-axis values between 100.46 and 103.47 as well the datetime values on x-axis will be rendered in the fixed tooltip? I also want to display the CDEP158 y-axis values simultaneously in the fixed tooltip. How can I achieve this?
[Chart 1]
[Chart 2]
This is the Highchart initialization.
myChart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'line',
zoomType: 'xy',
panning: true,
panKey: 'shift',
plotBorderWidth: 1
},
title: {
text: ''
},
legend: {
layout: 'horizontal',
align: 'left',
itemDistance: 10,
borderWidth: 0,
itemMarginTop: 0,
itemMarginBottom: 0,
padding: 20
},
plotOptions: {
series: {
states: {
hover: {
enabled: false
}
},
dataLabels: {
enabled: false,
format: '{y}'
},
allowPointSelect: false
}
},
xAxis: {
type: 'datetime',
labels: {
rotation: -65,
style: {
fontSize: '9px',
fontFamily: 'Verdana, sans-serif'
}
},
crosshair: true,
dateTimeLabelFormats: {
second: '%d %b %Y <br/> %H:%M:%S %P',
}
},
yAxis: {
gridLineColor: '#DDDDDD',
gridLineWidth: 0.5
},
tooltip: {
positioner: function () {
return {
x: this.chart.plotLeft,
y: this.chart.plotTop
}
},
useHTML: true,
formatter: function (tooltip) {
var formattedDate = Highcharts.dateFormat('%d %b %Y <br/> %H:%M:%S %P', new Date(this.x));
const header = `<span style="font-size: 8px">${formattedDate}</span><br/>`;
let body = this.points.reduce((body, p) => body + `<small><font color="${p.series.color}"><strong>${p.series.name}</strong></font>: <strong>${p.y}</strong></small><br/>`, '');
return header + body;
},
shared: true,
valueDecimals: 2,
//followPointer: true,
shadow: false,
borderWidth: 0,
backgroundColor: 'rgba(255,255,255,0.8)'
},
series: [{
name: 'CDT158',
data: [
[1493326164493, 87.54],
[1493326174018, 97.09],
[1493326188245, 100.46],
[1493326238635, 103.47],
[1493326284930, 106.12]
]
},{
name: 'CDEP158',
data: [
[1493326165993, 94.34],
[1493326174772, 88.87],
[1493326188895, 98.25],
[1493326272411, 96.48],
[1493326299520, 100.13]
]
}]
});
I'm pretty sure that this can be achieved through Highcharts but, my limited knowledge and experience in Highchart stops me to figure it out.
I have posted a sample fiddle that illustrate the above scenario.
Any help is greatly appreciated.
I am attempting to make a stacked column chart representing events on a timeline. I need evenly-spaced bars, that scroll left/right with their respective ticks. Currently upon scrolling, the columns remain in place and their data is updated to reflect the new timespan they represent (I assume).
For example: when scrolling one "step" to the right, I note these differences:
The column remains in place with updated data and the axis tick moves to the left. This results in a 'graphic equalizer'-like effect when scrolling. (See fiddle)
What I need is to have the column represent the same data for the life of the chart, and to scroll left/right with its tick mark.
I suspect I'm misunderstanding something in the configuration. Any help/direction would be very much appreciated.
(As a side note: is there any easy way to style/color data from the past (with an xAxis datetime value of < today) differently to normal data?)
chart: {
alignTicks: false,
backgroundColor: '#eeeeee',
events: {
load: function (e) {
this.xAxis[0].setExtremes(1390943153305, 1400015153305);
}
},
ignoreHiddenSeries: true,
renderTo: $('#chart')[0]
},
colors: ['#89f1a4','#68d9f7','#9eb9ef','#c49eef'],
credits: {enabled: false},
legend: {
enabled: true,
shadow: true
},
rangeSelector: {selected: 1},
title: {text: 'Global Events'},
navigator: {
height: 40,
xAxis: {
gridLineWidth: 1
},
series: {type: 'column'}
},
plotOptions: {
series: {
showInLegend: true,
stacking: 'normal',
dataGrouping: {
enabled: true,
forced: true,
units: [
['millisecond', [604800000]], // Attempting to force data into weekly groups, throws error if this is null
['second', [604800]],
['minute', [10080]],
['hour', [168]],
['day', [7]],
['week', [1]], // Expected this to be the only required option if I only want weekly grouping...
['month', null],
['year', null]
]
}
}
},
xAxis: {ordinal: false},
series: data
If you want just weekly grouping, then only that one set, see: http://jsfiddle.net/s6BmC/2/
I think that resolves your issue, right?
plotOptions: {
series: {
showInLegend: true,
stacking: 'normal',
dataGrouping: {
enabled: true,
forced: true,
units: [ [ 'week', [1] ]]
}
}
},
Regarding additional question:
- yes you can set specific color for each point, but you need to determine on your own what color should be set:
data: [{ x: timestamp, y: value, color: color }, { x: timestamp, y: value, color: color }... ]
Another solution is to wrap setting color for column. Something similar I have done for candlestick: http://jsfiddle.net/79WZM/ (this solution requires much more knowledge of Highcharts).
I am using highcharts to draw a column chart as following:
var chart;
var count = 0;
$(function () {
$(document).ready(function() {
chart = new Highcharts.Chart({
chart: {
renderTo: 'graph',
type: 'column',
margin: [ 50, 50, 100, 80]
},
title: {
text: 'Random Data'
},
xAxis: {
categories: [
'T1',
'T2'
],
startOnTick: true,
endOnTick: true,
labels: {
rotation: -45,
align: 'right',
style: {
fontSize: '13px',
fontFamily: 'Verdana, sans-serif'
}
}
},
yAxis: {
min: 0,
title: {
text: 'Y-Axis'
}
},
legend: {
enabled: false
},
tooltip: {
formatter: function() {
return '<b>'+ this.x +'</b><br/>'+
'Tip is: '+ Highcharts.numberFormat(this.y, 1);
}
},
series: [{
name: 'Population',
data: [34.4, 21.8],
dataLabels: {
enabled: true,
rotation: -90,
color: '#FFFFFF',
align: 'right',
x: 4,
y: 10,
style: {
fontSize: '13px',
fontFamily: 'Verdana, sans-serif'
}
}
}]
});
});
});
I added the following function in order to add new points to the chart
function addPoints(name,acc)
{
var series = chart.series[0];
series.addPoint(acc, false, true);
categories = chart.xAxis[0].categories;
categories.push(name+count);
count++;
chart.xAxis[0].setCategories(categories, false);
chart.redraw();
}
The problem is that everytime I add a new point, one column shifts out of the chart. I would like to keep all columns in the chart view, so when I add a new point the chart just zooms out.
Check it on JSFiddle
Thanks in Advance ....
addPoint (Object options, [Boolean redraw], [Boolean shift], [Mixed animation])
Add a point to the series after render time.
Parameters
options: Number|Array|Object
The point options. If options isa single number, a point with that y value is appended to the series.If it is an array, it will be interpreted as x and y values respectively, or inthe case of OHLC or candlestick, as [x, open, high, low, close]. If it is an object, advanced options as outlined under series.data are applied.
redraw: Boolean
Defaults to true. Whether to redraw the chart after the point is added. When adding more thanone point, it is highly recommended that the redraw option beset to false, and instead chart.redraw() is explicitly calledafter the adding of points is finished.
shift: Boolean
Defaults to false. When shift is true, one point is shifted off the start of the series as one is appended to the end. Use this option for live charts monitoring a value over time.
animation: Mixed
Defaults to true. When true, the graph will be animated with default animationoptions. The animation can also be a configuration object with properties durationand easing.
series.addPoint(acc, false, true);
/\ here's the problem, it should be false
Reference
http://api.highcharts.com/highstock#Series
Updated demo