How to add inline legends to line / area mixed chart in highchart - javascript

I have a chart which has part line and part area stacked. In the first part (area) I want to add an inline legend as it is shown in this example (ie where it says Asia)
https://www.highcharts.com/demo/area-stacked-percent
These are the example options but I do not see how to specify that or if this is the default way to show legends in this plot
In my example, I cannot put the legends inside the area part. Tried to add title in yAxis. I also tried to add an annotation but it did not work:
https://jsfiddle.net/hkpna40r/1/
annotations: [{
labelOptions: {
backgroundColor: 'rgba(255,255,255,0.5)',
verticalAlign: 'top',
y: 4
},
labels: [{
point: {
xAxis: 0,
yAxis: 0,
x: Date.UTC(2019, 11, 2),
y: 3
},
zIndex:100,
text: 'Arbois'
}],
}],

You can achieve what you want by attaching a module called series-label and set plotOptions.area.label like that:
plotOptions: {
area: {
label: {
enabled: true,
onArea: false
}
},
line: {
label: {
enabled: false
}
}
}
Note, annotations also work but you have to attach annotations module separately.
Demo:
https://jsfiddle.net/BlackLabel/5utLhenb/
API reference:
https://api.highcharts.com/highcharts/plotOptions.area.label
https://www.highcharts.com/docs/advanced-chart-features/annotations-module

Related

How to create Highcharts plotbands along every point in line chart

I want to create a linechart with HighCharts that has a plotband along every point of the line. Like so: https://imgur.com/a/WVj7uJb
(They are using HighCharts as well, so it must be possible).
However, I can't seem to manage getting it for every point specific. Whenever I add plotbands, it just draws a band using the highest and lowest point like so: https://imgur.com/a/PZdKIBz
How I currently render the chart (note the plotbands part):
Highcharts.chart('chart', {
chart: {
type: 'line',
},
title: {
text: `${this.variable}`,
},
credits: {
enabled: false,
},
xAxis: {
type: 'category',
title: {
text: "Date"
},
},
yAxis: {
title: {
text: this.unit
},
plotBands: [
{
color: "orange",
from: 12,
to: 14
},
{
color: "orange",
from: 10,
to: 13
} // and so on.
]
},
tooltip: {
headerFormat: `<div>Date: {point.key}</div>`,
pointFormat: `<div>${this.unit}: {point.y}</div>`,
useHTML: true,
},
series: seriesList,
} as any);
So exact example would render a plotband from 10 to 14 along the whole linechart, instead of to different points: one from 12 to 14, and one from 10 to 13.
Any ideas as to how I can accomplish this? I have seen something with 'path', but I can't find anything about it.
Thanks in advance.
In that case, you should use arearange series instead of plotBand.
Demo:
https://www.highcharts.com/demo/arearange-line
API Reference:
https://api.highcharts.com/highcharts/series.arearange

HighStocks/HighCharts scrollbar not displaying with large datasets causing xAxis labels to disappear and making bars not show

I'm creating a HighStock column bar chart. I have enabled the scrollbar using scrollbar: enabled. The scrollbar works fine for smaller datasets, but this dataset has a lot of categories(I've only included half as many as I need). For some reason, after a certain number, the rects for the bar chart won't properly show(or show wrong values) and the xAxis labels display as numbers rather than their actual names. Also, I'm trying to add IDs to each of the bars to add click events, but it only adds IDs to bars that are properly rendered initially. I have also noticed that I can properly add IDs even with a scrollbar to smaller data sets because all of the rect elements are properly rendered. Is there any way to make this scrollbar work for larger datasets?
You'll see what the problem described above looks like in this link:
https://jsfiddle.net/sauravvenkat/96ue59qy/
Highcharts.chart('container', {
chart: {
type: 'column',
color: 'rgb(245,111,35)',
},
title: {
text: 'Physicians By Specialty'
},
subtitle: {
text: 'Source: Physician Specaialty'
},
xAxis: {
type: 'category',
title: {
text: null
},
scrollbar: {
enabled: true
},
// min: 0,
max: 7,
tickLength: 0,
labels: {
rotation: -60
}
},
yAxis: {
title: {
text: 'Profiles',
align: 'high'
}
},
plotOptions: {
bar: {
dataLabels: {
enabled: true
}
}
},
legend: {
enabled: false
},
credits: {
enabled: false
},
series: [{
name: 'Totals',
color: 'rgb(245,111,35)',
data: [["Spec1",1000],["Spec2", 1000], ["Spec3",500],["Spec4",300],["Spec5",1000],["Spec6", 1000], ["Spec26",500],["Spec27",300],["Spec28",1000],["Spec29", 1000], ["Spec30",500],["Spec31",300],["Spec32",1000],["Spec33", 1000], ["Spec34",500],["Spec35",300],["Spec36",300],["Spec37",300], ["Spec38",300], ["Spec39",300], ["Spec40",300], ["Spec41",300], ["Spec42",300], ["Spec43",300], ["Spec44",300], ["Spec45",300], ["Spec46",300],["Spec47",1000],["Spec48", 1000], ["Spec49",500],["Spec50",300],["Spec51",1000],["Spec52", 1000], ["Spec53",500],["Spec54",300],["Spec55",1000],["Spec56", 1000], ["Spec57",500],["Spec58",300],["Spec59",300],["Spec60",300], ["Spec61",300], ["Spec62",300], ["Spec63",300], ["Spec64",300], ["Spec65",300], ["Spec66",300], ["Spec67",300], ["Spec68",300], ["Spec",300],["Spec24",1000],["Spec25", 1000], ["Spec26",500],["Spec27",300],["Spec28",1000],["Spec29", 1000], ["Spec30",500],["Spec31",300],["Spec32",1000],["Spec33", 1000], ["Spec34",500],["Spec35",300],["Spec36",300], ["Spec44",300], ["Spec45",300], ["Spec46",300],["Unknown",250]]
}]
});
It happens because the number of points in series is bigger than the default value of the cropThreshold property (more about below, in the API Reference section). As a solution, set the property with the bigger value.
API Reference:
http://api.highcharts.com/highcharts/plotOptions.column.cropThreshold
Example:
https://jsfiddle.net/q8pn2dwf/

highcharts no point markers but show single point or discontinous points

I've set markers in HighCharts to false for line charts, but I would this means that if the series a single point or if there is a discontinuous series like: [2.45, 7.89, null, 3.45] the 3.45 point would not show up at all on the chart. Is there a way to fix this?
line: {
marker: {
enabled: false
}
}
The 3.45 point does appear on the chart - if you hover over where it supposed to be you can see it highlighted. Issue is there is no line connecting to it from your 7.89 because connectNulls is false by default. To see the points connected turn this to true. You can also enable a marker per point not just per series:
series: [{
data: [{
y: 2.45
}, {
y: 7.89
}, {
y: null
}, {
y: 3.45,
marker: {
enabled: true
}
}]
Sample fiddle.

Highchart - Use a formatter on PlotLine labels

I'm using highchart to show some text next to a plot line on the xAxis. I would like to customize each label from a formatter function as it is possible on every other labels in the chart.
I've seen another topic on this matter but they're using TypeScript and I don't.
What I'm doing is :
vay chart = new HighChart({
...
xAxis: {
plotLines: [{
id: "plotLines",
zIndex: 15,
color: myColor,
width: 1,
value: theXvalue, //x value where to show the line
label: {
formatter: function () {
return " VAL > "+this.value;
}
},
}]
},
...
});
If I set the 'text' value in the label it shows up and it works like a charm.
Any help to use a formatter for those labels ?
Unfortunately you cannot use formatter, you should define content of label in text object, which can be wrapped in html elements, but then you need to set [useHTML(http://api.highcharts.com/highcharts#xAxis.plotLines.label.useHTML) parameter
Set the useHTML value to true and set your html content inside text. Here is an example of how to achieve it http://jsfiddle.net/9mvwpqf3/1/
yAxis: {
plotLines: [{
color: 'red',
width: 2,
value: 100,
label: {
useHTML: true,
text: '<button>Click Me</button>',
},
}]
},

Highcharts bar and scatter series not lining up

I'm trying to create a chart using highcharts that includes both a column series and a scatter series with a custom point marker. The series will contain slightly different sets of data, but will overlap for the most part and will always have the same x-axis values.
I've set it up, but the problem is that it's not lining up perfectly. Some of the scatter series' points are shifted one or two pixels to the left of the corresponding bar.
Any ideas about how to fix this?
{
chart: {
animation: false
},
xAxis: {
tickInterval: 1
},
series: [{
type: "column",
borderWidth: 0,
pointWidth: 20,
name: "col"
},
{
type: "scatter",
states: { hover: { enabled: false } },
marker: { symbol: 'url(symbol.png)' }
}]
}
And here's a screenshot of what's happening:
Indeed it looks like a bug, also with standard markers, so I've decided to report it to our developers https://github.com/highslide-software/highcharts.com/issues/1843

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