I'm trying to recreate the ECharts "Multi Title Gauge" example (a gauge with three pointers in different colors) but using a dataset rather than the gauge data values in the series.data definition. While I can get this to work for a gauge with a single pointer, I cannot get it working for the "Multi Title Gauge".
I've been able to get this to work with line, bar and pie charts.
I did read that the datasets feature, while introduced in 5.0, is not supported by all chart types.
I was encouraged when I was able to get "Gauge Basic Chart" working with a dataset. But have not been able to get "Multi Title Gauge" to work with a dataset.
The closest I have gotten to having "Multi Title Gauge" use a dataset is by using multiple series' and datasets. Each dataset has only 1 value.
ChartOptions={
dataset: [
{ source: [ ["Series1"], [46] ] },
{ source: [ ["Series2"], [56] ] }
],
series: [
{
name: "Series1",
type: "gauge",
datasetIndex: 0,
progress: { show: true },
title: { offsetCenter: ["-60%", "82%"] },
detail: {
formatter: "R1",
offsetCenter: ["-60%", "97%"]
},
min: 0,
max: 180,
splitNumber: 9,
axisTick: { splitNumber: 4 }
},
{
name: "Series2",
type: "gauge",
datasetIndex: 1,
progress: { show: true },
title: { offsetCenter: ["0%", "82%"] },
detail: {
formatter: "R2",
offsetCenter: ["0%", "97%"]
},
min: 0,
max: 180,
splitNumber: 9,
axisTick: { splitNumber: 4 }
}
]
}
However, both pointers are blue - there is no automatic color change for the different series' and issues with the legend. There is quite a bit of repetition in the data configuration. Using a dataset would (as designed) separate the config from the data.
I have also tried a single dataset with multiple values and then using 'encode' in the series, but 'encode' seems to be ignored for Gauge.
My preference is to standardize on using a dataset for all my charts. But if it's not fully supported for Gauge, then I'll take a different approach.
Any insight would be appreciated.
Related
I'm trying to make a a combination of a candlestick chart (representing stock data) and a bar chart (representing volume).
I already have them displayed on one chart but the display and layout I'm having trouble with.
For one, the candlestick and bar data are placed side-by-side rather than stacked on top of each other. Another error is the scale of the volume data for the bar chart is not represented properly in the y-axis (which uses data from candlesticks as basis).
Here is my current code to render the chart:
chart = new Chart(ctx, {
type: 'candlestick',
data: {
labels: labelsData,
datasets: [{
label: "My Data",
data: chartData
},
{
label: 'Volume',
data: volData,
type: 'bar'
}]
}
});
labelsData contains the Date values for each item entry
chartData contains JSON object with c,h,l,o,t (close,high,low,open,date) to
represent stock data for each item entry
volData is an array containing numbers to represent volume for each item entry
What should I add to make the candlesticks and bars placed on the same column, as well as have the bars have their own scale so they do not overshoot the height of the chart?
It seems you need to scale the volume data since it's two different value units in Y,
It seems like currentlty there isn't support for this in chartJs I created a feature request, follow the link to see the two issues that were closed due to this.
https://github.com/apexcharts/apexcharts.js/issues/2068
With default configuration you're not easily able to add barcharts.
Here is steps you need to do;
Base config:
const config = {
// type: 'candlestick', // you must remove this, this option is braking the chart
data: {
datasets: []
},
options: {
parsing: false, // must be here, solves another stupid problem
spanGaps: true, // for better performance
animation: false, // for better performance
pointRadius: 0, // for better performance
plugins: {
title: {
display: false,
text: 'Fiyat Grafiği'
},
},
responsive: true,
maintainAspectRatio: false,
scales: {
x: {
type: 'timeseries',
},
y: {
type: 'linear',
},
volume: {
type: 'linear',
beginAtZero: true,
position: 'right',
max: maxVolume * 10, // maxVolume should be the maximum number of volumes
grid: {
display: false, // for better presentation
},
ticks: {
display: false, // for better presentation
},
}
},
interaction: {
intersect: false,
mode: 'index',
},
}
};
Second step is preparing the datasets;
let dataSets = [
{
type: 'candlestick', // this must stay
label: 'Financial Graph',
data: data['klines'].map(function (kline) {
return {
'x': moment(kline['from']),
'o': kline['open_price'],
'c': kline['close_price'],
'h': kline['high_price'],
'l': kline['low_price']
};
}),
color: {
up: 'rgb(26, 152, 129)', // those colors are better than defaults
down: 'rgb(239, 57, 74)', // those colors are better than defaults
unchanged: '#999', // those colors are better than defaults
},
borderColor: {
up: 'rgb(26, 152, 129)',
down: 'rgb(239, 57, 74)',
unchanged: '#999',
},
order: 10,
yAxisID: 'y', // this must stay
},
{
type: 'bar',
label: 'Volume',
data: data['klines'].map(function (kline) {
return {
'x': moment(kline['from']), // i used moment, feel free to use your own time library
'y': kline.quote_asset_volume,
}
}),
backgroundColor: data['klines'].map(function (kline) {
return kline.open_price < kline.close_price ? 'rgb(26, 152, 129)' : 'rgb(239, 57, 74)' // for better presentation
}),
borderColor: '#fff',
borderWidth: 1,
order: 12,
yAxisID: 'volume', // this must stay
barPercentage: 0.5, // this must stay
barThickness: 6, // this must stay
maxBarThickness: 8, // this must stay
},
]
Result;
I am using more than one pie chart from amCharts on a single page, when the page is loading the animation is not working, and I want it to work. Below is my code which is used to render chart.
var Piechart132 = AmCharts.makeChart('div132', {
labelsEnabled: false,
autoMargins: false,
marginTop: 0,
marginBottom: 0,
marginLeft: 0,
marginRight: 0,
pullOutRadius: 0,
type: 'pie',
theme: 'dark',
dataProvider: [
{ country: 'Banking', litres: 300000000 },
{ country: 'Carpenter', litres: 349500000000 },
{ country: 'Doctor', litres: 433650000000 },
{ country: 'Gas', litres: 108326000000 },
{ country: 'Mechanic', litres: 366450000000 }
],
outlineThickness: 1,
outlineAlpha: 1,
legend: { enabled: true, valueText : '' },
outlineColor: undefined,
titles: [{ text: 'Industry wise Exposure' }],
valueField: 'litres',
titleField: 'country',
balloon: { fixedPosition: true }
});
One more than I want to mention that same code when I execute on Fiddle, it is working fine, it might be possible that there is any other conflict but I can't find it anyway. I've even tried to insert startDuration and set its value to20` so that at least I can see what the problem is but still nothing.
The pie charts definitely do animate when multiple charts are on the same page, however they might all bog down the browser if they're all initialized at once, leading to a choppy experience where the animation runs too quickly or are so choppy that they appear to not work. You may want to consider a lazy-loading technique in which you use each chart's init event to initialize the next chart after a delay, or the lazy load techniques described in the AmCharts knowledge base links below:
https://www.amcharts.com/kbase/lazy-loading-120-charts-page/
https://www.amcharts.com/kbase/make-the-charts-lazy-initialize-only-when-they-scroll-into-view/
AS shown in image, i want to change Fill color by point (referring project state in my case so),
visual for my chart
code i have used so far to achieve this is below,
$(function () {
$('#ao-projectssummry-chart').highcharts({
type: "spline",
title: null,
borderRadius : null,
xAxis: {
categories: ['May2016', 'June2016', 'July2016', 'August2016', 'september2016', 'November2016'],
opposite: true
//type: 'datetime',
//min: Date.UTC(2011, 4, 31),
//max: Date.UTC(2012, 11, 6)
},
yAxis: {
min: 0,
max: 5,
title : null
},
plotOptions: {
series: {
lineWidth: 20,
borderRadius: null,
radius: 0
},
marker: {
radius : 0
}
},
credits : {
enabled : false
},
legend: {
enabled : false
},
series: [{
name: "Project 1",
data: [1, 1, {
y: 1,
marker: {
symbol: 'url(https://www.highcharts.com/samples/graphics/sun.png)',
overlapping: true
}
}, {
y: 1,
marker: {
symbol: 'url(https://www.highcharts.com/samples/graphics/sun.png)'
}
}, {
y: 1,
marker: {
symbol: 'url(https://www.highcharts.com/samples/graphics/sun.png)'
}
}
]
},
{
name: "Project 2",
data: [2, {
y: 2,
marker: {
symbol: 'url(https://www.highcharts.com/samples/graphics/sun.png)',
overlapping : true
}
}, 2, 2, 2, {
y:2,
marker: {
symbol: 'url(https://www.highcharts.com/samples/graphics/sun.png)',
overlapping: true
}
},
]
}]
});
});
so, how can i change the plotoption color by point? also how can i achieve background lines shown in the picture?
Any help would be appreciated! thanks in advance.
Ok, so it seems the question is different than what I read it as the first time. Rather than changing the color of the point markers, you want to change the color of the segments between markers.
Here is an approach that achieves what you are asking for, using the columnrange series type instead of a line. This allows more flexibility and control.
The idea:
First, set the type, and invert the chart (columnrange is a vertical series type; to make it horizontal, invert the chart - the x axis is now the vertical axis, and the y axis is now the horizontal axis):
chart: {
type: "columnrange",
inverted: true
}
Update the axis settings accordingly (swap x for y).
Set your data with an x value, a low value (starting point), and a high value (end point).
Set the color to whatever you want:
data: [{
x: 1,
low: Date.UTC(2016,3,15),
high: Date.UTC(2016,4,21),
color: 'rgb(0,156,255)'
},{
x: 3,
low: Date.UTC(2016,2,7),
high: Date.UTC(2016,6,15),
color: "rgb(204,0,0)"
}]
To place the markers, add a separate series, either line or scatter (I use line, with a lineWidth: 0, because scatter series use a different tooltip model, and are not as easy to integrate with other series, if the tooltip is important to you. But otherwise, both work the same).
Marker series:
{
name: 'Markers',
type: 'line',
data: [
{
x: 1,
y: Date.UTC(2016,2,15),
marker: {
fillColor:"#9CCB00"
}
}
Example:
https://jsfiddle.net/jlbriggs/x7c3t81n/
Output:
You need to specify that in the data array directly:
Example code:
data: [5,4,3,2,5,6,7,9, {y:6, marker: { enabled: true, radius: 10, fillColor: 'red'}},3,2,5,6,7]
Anything that you can specify in the plotOptions that affects the data point, you can specify in this way for a specific data point.
Any point for which you don't specify anything, follows the default options, or the options specified in the plotOptions.
Fiddle:
http://jsfiddle.net/jlbriggs/3d3fuhbb/126/
Output:
I would like to have a flotchart that depicts the distribution of all data (x axis represents the values from 0 to 10, y axis for hour only starting from 7am to 7pm).
I could not figure out how I should set the configuration of flotchart in this regard.
Here is the json sample of my Dataset :
[1409558400000, 7.45],[1409562000000, 5.71], [1409565600000, 7.50], [1409569200000, 7.63], [1409576400000, 3.14],
[1409644800000, 7.45],[1409648400000, 5.71], [1409652000000, 7.50], [1409655600000, 7.63], [1409662800000, 3.14],
[1409731200000, 7.45],[1409734800000, 5.71], [1409738400000, 7.50], [1409742000000, 7.63], [1409749200000, 3.14]]
;
And here is the code for flotchart; The problem with this is that it sorts all the series based on their timestamps. I do not want that.
I would like them to fit in based on their "hour" parameter only.
Anyone knows if only hour on the x-axis without sorting the data series is possible with flotchart ?
$("#a-dag").click(function() {
console.log("a dag filtering will be applied...");
$.plot("#placeholder", [d], {
series: {
lines: {
show: true
},
points: {
show: true
}
},
grid: {
hoverable: true,
clickable: true,
markings: [{
yaxis: {
from: 0,
to: 4
},
color: "#F2CDEA"
}, {
yaxis: {
from: 4,
to: 7
},
color: "#D7EEE1"
}, {
yaxis: {
from: 7,
to: 12
},
color: "#F2CDEA"
}]
},
xaxis: {
mode: "time",
twelveHourClock: true,
},
yaxis: {
min: 0,
max: 12
}
});
});
Just convert your timestamps to hours, for example like this:
$.each(d, function (index, datapoint) {
datapoint[0] = (new Date(datapoint[0])).getHours();
});
(If you want values with AM / PM change accordingly.)
And of course remove the mode: "time" from your options.
See this fiddle for the changed code.
I'm trying to use Highcharts to create a graph similar to what's shown below. As clear, the 1st column (100%) is a sum of all others. The approach I thought of was to have invisible series below each of the individual categories to give them their raised look. The only thing that's holding me back is the thought of the situation where I might have to deal with say 30+ categories (possible in our application). Is there any simpler way to achieve the same results?
I can't post the image directly as I'm a new user. Sorry.
http://i.stack.imgur.com/RBWIf.png
I would suggest taking a look at the "low" property which is shown here:
http://fiddle.jshell.net/8JP8T/
var chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'column'
},
xAxis: {
categories: ['Jan', 'Feb', 'Mar', 'Apr']
},
series: [{
data: [{
low: 1,
y: 2
}, {
low: 2,
y: 4
}, {
low: 0,
y: 4
}, {
low: 4,
y: 5
}]
}]
});
You'll still have to preprocess your data to get the correct y value and low value, but it seems doable?
For column chart, for each point you can specify the y value and the corresponding low to create a floating column.
series: [{
data: [
{y: 29.9, low: 20},
{y: 50, low: 20},
{y: 100, low: 50}
]
}]
See this example on jsfiddle.