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chart.js remove lower grid from mixed chart

I have a mixed chart (scatter and line), hence I need 2 xAxis.
There's an extra grid that appears on the bottom of the chart, because that's where the other x axis normally has its labels (I removed them because I don't need them)
I'm trying to get rid of that extra grid, but I can't find how to do it. I've tried to specify the ticks color as white but the grid's still there.
Look at the image, it's that solitary extra grid at the bottom (marked with an horizontal bracket):
This is my code:
const ctx = document.getElementById('myChart');
const labels1 = ['A','R','Fyo','A-MAC','HR','Do','Rs','Dpr','GM','GF','EPK','EPS','Is1','Is2','Is3','FP','INVAR','INVER'];
const lasIs = (ctx, value) => ctx.p0DataIndex > 11 ? value: undefined;
const markedIdxs = [0,5,10,15,20,25,30,35,44, //... and many more];
const markedVals = [0,5,10,15,20,25,30,35,10,// ... and many more];
const data1 = {
labels: labels1,
datasets: [
{
type: 'line',
label: 'Line Dataset',
data: [65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65],
pointRadius: 0,
borderWidth: 1,
borderColor: '#0070C5',
xAxisID: 'x2'
},
{
type: 'line',
label: 'Line Dataset',
data: [50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50],
pointRadius: 0,
borderWidth: 1,
borderColor: '#0070C5',
xAxisID: 'x2'
},
{
type: 'line',
label: 'Line Dataset',
data: [102, 38, 54, 56, 102, 38, 54, 56, 102, 38, 54, 56, 102, 38, 54, 87, 62, 91],
pointStyle: 'circle',
pointRadius: 5,
borderWidth: 2,
borderColor: 'rgba(0, 120, 161,0.5)',
backgroundColor: 'rgba(0, 120, 161,0.5)',
fill: true,
segment: {
borderColor: ctx => lasIs (ctx, 'rgba(0, 168, 172, 0.5'),
backgroundColor: ctx => lasIs (ctx, 'rgba(0, 168, 172, 0.5'),
},
xAxisID: 'x2'
},
{
type: 'scatter',
pointStyle: 'dash',
pointRadius: 6,
borderColor: 'rgba(0, 0, 255,0.2)',
xAxisID: 'x',
data: [{x:1, y:36}, {x:1, y:37}, {x:1, y:39}, {x:1, y:40}, {x:1, y:42}... //and many more]
},
],
};
const multiplos5 = {
id: 'multiplos5',
afterDatasetsDraw(chart, args, options) {
const {ctx} = chart;
ctx.save();
ctx.font = "8px Verdana";
ctx.fillStyle = "#0070C5";
yaSeDibujo=84;
paddLeft = 0;
for (i=0; i < markedIdxs.length; i++) {
if (markedVals[i] < 10)
paddLeft=8;
else
paddLeft=12;
ctx.fillText(markedVals[i], chart.getDatasetMeta(3).data[markedIdxs[i]].x - paddLeft, chart.getDatasetMeta(3).data[markedIdxs[i]].y + 3);
}
}
};
Chart.register(multiplos5);
const myChart = new Chart(ctx, {
data: data1,
options: {
scales: {
x2: { // add extra axes
min: 0,
max: 18,
position: 'bottom',
type: 'category',
ticks: {color: '#0070C5'},
offset: true
},
x: {
min: 1,
max: 18,
ticks: {stepSize: 1, display: false},
offset: true
},
y: {
min: 20,
max: 120,
ticks: {stepSize: 10, color: '#555555', crossAlign: 'start'},
grid:{color:'#f1f1f1', display:true},
},
y2: {
position: 'right',
min: 20,
max: 120,
ticks: {stepSize: 10, color: '#555555'},
grid:{display:false}
},
},
plugins: {
multiplos5,
legend: false,
tooltip: {
displayColors: false,
filter: function (tooltipItem) {
return tooltipItem.datasetIndex == 2;
},
callbacks: {
//title: "el título",
label: function(context) {
let label = labels2[context.dataIndex] + ': ' + context.parsed.y;
return label;
}
}
}
},
},
});
Chart.js version is 3.6.2
Any help/workaround will be really appreciated.
Regards!!
Forgot to mention that the axis I'm talking about is 'x' (xAxisID: 'x')

In your config for the X axis where you set the ticks to display false, if you instead do this in the root of the X scale config it will hide that line so you will get:
scales:{
x: {
display: false,
min: 1,
max: 18,
offset: true
}
}

How can I build a vertical line without going through my dots on my line graph? (charts.js)

Hey guys I have created a line chart that is almost done. The only thing that annoys me is the fact that there is some white space on the right-hand side of the graph. I would like to create a vertical line that does not go through the dots. It should be a smooth line without affecting the dots at the end of the line chart
enter image description here
[<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.js"></script>
<canvas id="mychart2" width="500" height="500"></canvas>
<script>
var canvas = document.getElementById("mychart2");
var ctx = canvas.getContext('2d');
const decimals = 0;var originalLineDraw = Chart.controllers.line.prototype.draw;
Chart.helpers.extend(Chart.controllers.line.prototype, {
draw: function() {
originalLineDraw.apply(this, arguments);
var chart = this.chart;
var ctx = chart.chart.ctx;
var index = chart.config.data.lineAtIndex;
if (index) {
var xaxis = chart.scales\['x-axis-0'\];
var yaxis = chart.scales\['y-axis-0'\];
ctx.save();
ctx.beginPath();
ctx.moveTo(xaxis.getPixelForValue(undefined, index), yaxis.top);
ctx.strokeStyle = '#F6F6F6';
ctx.lineWidth = 1;
ctx.borderDashOffset = 0.0;
ctx.color = 'rgba(0, 0, 0, 1)';
ctx.zeroLineColor = "rgba(0, 0, 0, 0.25)";
ctx.tickMarkLength = 10;
ctx.lineTo(xaxis.getPixelForValue(undefined, index), yaxis.bottom);
ctx.stroke();
ctx.restore();
}
}
});
var config = { //configure the chart
type: 'line',
data: {
labels: \['0', '1', '2', '3', '4', '5', '6', '7', '8', '9+'\],
datasets: \[{
label: "25th Percentile",
showInLegend: false,
backgroundColor: '#c4c1ff',
pointBackgroundColor: "#645bff",
borderColor: '#645bff',
fill: 4,
pointRadius: 0,
pointBorderWidth: 3,
pointHoverRadius: 3,
pointHitRadius: 3, //no fill here
data: \[28, 35, 40, 45, 50, 55, 62, 66, 70, 78\]
}, {
label: "90th Percentile",
backgroundColor: '#c4c1ff',
pointBackgroundColor: "#c4c1ff",
borderColor: '#c4c1ff',
pointHoverBackgroundColor: "#c4c1ff",
pointHoverBorderColor: "#c4c1ff",
borderWidth: 1,
pointRadius: 0,
pointBorderWidth: 3,
pointHoverRadius: 3,
pointHitRadius: 3,
fill: 3,
//no fill here
data: \[40, 65, 63, 64, 72, 79, 83, 87, 100, 108\]
}, {
label: "Median",
backgroundColor: '#0d0e25',
pointBackgroundColor: "#0d0e25",
borderColor: '#0d0e25',
borderWidth: 1,
pointRadius: 2,
pointBorderWidth: 3,
pointHoverRadius: 3,
pointHitRadius: 3,
fill: false, //no fill here
data: \[30, 40, 45, 50, 56, 60, 66, 73, 78, 85\]
},
{
label: "25th - 75th Percentile",
showInLegend: false,
backgroundColor: '#645bff',
pointBackgroundColor: "#645bff",
borderColor: '#645bff',
pointRadius: 0,
lineTension: 0.5,
pointBorderWidth: 3,
pointHoverRadius: 3,
pointHitRadius: 3,
borderCapStyle: 'butt',
borderDash: \[\],
borderDashOffset: 0.1,
borderJoinStyle: 'miter',
fill: 0,
//fill until previous dataset
data: \[35, 50, 51, 55, 63, 69, 73, 80, 85, 94\]
}, {
label: "10th Percentile",
backgroundColor: "#c4c1ff",
pointBackgroundColor: "#c4c1ff",
pointHoverBackgroundColor: "#c4c1ff",
pointHoverBorderColor: "#c4c1ff",
borderColor: "#c4c1ff",
pointStyle: "circle",
borderWidth: 1,
lineWidth: 1,
hoverRadius: 9,
pointRadius: 0,
pointBorderWidth: 3,
pointHoverRadius: 3,
pointHitRadius: 3,
lineTension: 0.3,
fill: '0', //fill until previous dataset
data: \[25, 30, 36, 39, 45, 49, 53, 56, 60, 68\]
}
\], lineAtIndex: 9
},
options: {
tooltips: {
callbacks: {
label: function(tooltipItem, data) {
var label = data.datasets\[tooltipItem.datasetIndex\].label || '';
if (label) {
label += ': ';
}
if (label === "25th - 75th Percentile: ") {
label = "75th Percentile: "
}
label += tooltipItem.yLabel
return label;
}
}
},
title: {
display: true,
text: 'Frontend Engineer salaries (753 datapoints)',
fontSize: 20
},
maintainAspectRatio: false,
legend: {
onClick: (e) => e.stopPropagation(),
display: true,
labels: {
filter: function(item,
mychart2) {
return !item.text.includes("25th Percentile" & "10th Percentile")
}
}
},
spanGaps: false,
elements: {
line: {
tension: 0.1
}
},
plugins: {
filler: {
propagate: false
}
},
scales: {
yAxes: \[{
gridLines: {drawOnChartArea:false
},
scaleLabel: {
display: true,
labelString: 'Salary',
fontSize: 20
},
ticks: {
beginAtZero: true,
stepSize: 20,
callback: function(value, index, values) {
return '$' + value.toFixed(decimals)
}
}
}\],
xAxes: \[{
gridLines: {drawOnChartArea:false
},
ticks: {
beginAtZero: true,
stepSize: 20,
},
scaleLabel: {
display: true,
labelString: 'Years of relevant experience',
fontSize: 20
}
}\]
}
}
};
var chart = new Chart(ctx, config)
</script>][1]

how should the vertical line look like?
do you mean the median line?
it would be helpful, if you can show us what kind of vertical line you mean, or at least tell us a function, so we know how the line should look like
EDIT:
You can add a 2nd yAxis to the right side.
Replace this for yAxes:
yAxes: [{
id: 'a',
type: 'linear',
position: 'left',
gridLines: {
drawOnChartArea:false
},
scaleLabel: {
display: true,
labelString: 'Salary',
fontSize: 20
},
ticks: {
beginAtZero: true,
stepSize: 20,
callback: function(value, index, values) {
return '$' + value.toFixed(decimals)
}
}
}, {
id: 'b',
type: 'linear',
position: 'right',
gridLines: {
drawOnChartArea:false
},
scaleLabel: {
display: false
},
ticks: {
display: false,
beginAtZero: true,
stepSize: 1
}
}]

Chartjs chart with only one axis

Chartjs one line chart without grid, axis and tick labels.
I want to draw chart something like above.
I don't want axes labels, tick labels and grid lines, only one line which will progress on the right as data (X values) added to the chart. I want to display labels on the dots added to the chart. Can we have only one axis (X) in the chart?
I did try below:
https://jsfiddle.net/Lxya0u98/2/
My data set is as below:
{
data: [{x:1, y:0}, {x:2, y:0}, {x:3, y:0}],
showLine: true,
borderWidth: 1.5,
borderColor: "blue",
pointBackgroundColor: "blue",
pointBorderColor: "blue",
pointRadius: 5,
}

If you define options ticks.display: false together with gridLines.display: false on both axes, it should work fine.
Please take a look at below sample code and see how it works.
new Chart('line-chart', {
type: "line",
data: {
labels: [1, 2, 3, 4, 5, 6, 7],
datasets: [{
data: [0, 0, 0, 0, 0, 0, 0],
backgroundColor: "#0168FF",
borderColor: "#0168FF",
pointBackgroundColor: "white",
pointBorderWidth: 1,
lineTension: 0,
pointBorderColor: "blue",
pointRadius: 4,
pointHoverRadius: 4,
}],
},
options: {
plugins: {
datalabels: {
align: 'top',
formatter: function(value, context) {
return context.dataIndex + 1;
}
}
},
layout: {
padding: {
right: 10
}
},
legend: {
display: false
},
tooltips: {
enabled: false
},
scales: {
yAxes: [{
ticks: {
display: false
},
gridLines: {
display: false,
}
}],
xAxes: [{
ticks: {
display: false
},
gridLines: {
display: false
}
}]
}
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-datalabels"></script>
<canvas id="line-chart" height="30"></canvas>

According to the comment from User7723337, the plugin chartjs-plugin-datalabels doesn't work with Chart.js version 3.0.0-beta.7.
As an alternative, you can draw the data labels directly on the canvas using the Plugin Core API. The API offers a number of hooks that can be used to perform custom code. In your case, you could use the afterDraw hook together with CanvasRenderingContext2D.
Note that I linked Plugin Core API with the Chart.js v2.x documentation because I couldn't find a corresponding section for v3.x. Apparently however, this is still also working with v3.x.
Please take a look at below code that uses Chart.js version 3.0.0-beta.7.
new Chart('line-chart', {
type: "line",
plugins: [{
afterDraw: chart => {
var ctx = chart.ctx;
ctx.save();
var xAxis = chart.scales['x'];
var yAxis = chart.scales['y'];
chart.data.labels.forEach((l, i) => {
var x = xAxis.getPixelForTick(i);
var y = yAxis.getPixelForValue(0);
ctx.textAlign = 'center';
ctx.font = '12px Arial';
ctx.fillText(l, x, y - 14);
});
ctx.restore();
}
}],
data: {
labels: [1, 2, 3, 4, 5, 6, 7],
datasets: [{
data: [0, 0, 0, 0, 0, 0, 0],
backgroundColor: "#0168FF",
borderColor: "#0168FF",
pointBackgroundColor: "white",
pointBorderWidth: 1,
lineTension: 0,
pointBorderColor: "blue",
pointRadius: 4,
pointHoverRadius: 4,
}],
},
options: {
layout: {
padding: {
left: 10,
right: 10
}
},
plugins: {
legend: {
display: false
},
tooltip: {
enabled: false
}
},
scales: {
y: {
display: false,
},
x: {
display: false,
}
}
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/3.0.0-beta.7/chart.min.js"></script>
<canvas id="line-chart" height="30"></canvas>

chart js how to fill legend box with colour

I'm using Chart.js for line charts and I have the legend as below.
The problem is that the legend only has an outline color, I want the legend box to have the whole thing colored. I haven't found anything in the documentation to see why mine only has the border. I'm at a bit of a loss, here's an example of my setup:
var LinuxDistributionsCombined = document.getElementById('LinuxDistributionsCombined');
var myChart = new Chart.Line(LinuxDistributionsCombined, {
type: 'line',
data: {
labels: ['Jul-2016', 'Sep-2016', 'Oct-2016', 'Dec-2016', 'Jan-2017', 'Feb-2017', 'Mar-2017', 'Apr-2017', 'May-2017', 'Jun-2017', 'Jul-2017', 'Aug-2017', 'Sep-2017', 'Oct-2017'],
datasets: [{
label: 'Ubuntu-based',
fill: true,
data: [0, 0, 0, 0, 51.37, 51.04, 50.64, 50.29, 49.6, 48.32, 47.95, 47.03, 46.42, 46.21],
borderColor: '#a6cee3',
borderWidth: 1
}, {
label: 'Arch-based',
fill: true,
data: [0, 0, 0, 0, 28.52, 28.53, 28.75, 29.02, 29.16, 30.42, 30.65, 31.29, 31.53, 31.93],
borderColor: '#1f78b4',
borderWidth: 1
}, {
label: 'Solus',
fill: true,
data: [0, 0, 0, 0, 0.42, 0.45, 0.61, 0.64, 0.92, 1.12, 1.08, 1.21, 1.23, 1.46],
borderColor: '#6a3d9a',
borderWidth: 1
}]
},
options: {
legend: {
display: true
},
scales: {
yAxes: [{
ticks: {
beginAtZero: true
},
scaleLabel: {
display: true,
labelString: 'Percentage of users'
}
}]
},
tooltips: {
callbacks: {
label: function(tooltipItem, data) {
var value = data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index];
var label = data.datasets[tooltipItem.datasetIndex].label;
return label + ' ' + value + '%';
}
},
},
}
});

You have to set the backgroundColor property for each of your datasets as well, as that is correspondent to legend box­'s fill color.
...
datasets: [{
label: 'Ubuntu-based',
fill: true,
data: [0, 0, 0, 0, 51.37, 51.04, 50.64, 50.29, 49.6, 48.32, 47.95, 47.03, 46.42, 46.21],
backgroundColor: '#a6cee3',
borderColor: '#a6cee3',
borderWidth: 1
}, {
label: 'Arch-based',
fill: true,
data: [0, 0, 0, 0, 28.52, 28.53, 28.75, 29.02, 29.16, 30.42, 30.65, 31.29, 31.53, 31.93],
backgroundColor: '#1f78b4',
borderColor: '#1f78b4',
borderWidth: 1
}, {
label: 'Solus',
fill: true,
data: [0, 0, 0, 0, 0.42, 0.45, 0.61, 0.64, 0.92, 1.12, 1.08, 1.21, 1.23, 1.46],
backgroundColor: '#6a3d9a',
borderColor: '#6a3d9a',
borderWidth: 1
}]
...

var ct = document.getElementById('myChart').getContext('2d');
var Chart = new Chart(ct, {
type: 'line',
data: {
datasets: [{
label: 'test',
data:[1,10],
backgroundColor: "rgb(0, 0, 0, 0)",
borderColor: "rgb(0, 0, 255)",
pointBackgroundColor: "rgb(0, 0, 255)",
borderWidth: 1
}]
},
options: {
scales: {
y: {
beginAtZero: true
},
yAxes: [{
scaleLabel: {
display: true,
labelString: 'test'
}
}]
}
},
plugins: [{
beforeDraw: function(c) {
var legends = c.legend.legendItems;
legends.forEach(function(e) {
e.fillStyle = 'red';
});
}
}]
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.5.0/Chart.min.js"></script>
<canvas id="myChart" width="400" height="300"></canvas>

Chart JS Line insert Picture

Simple Setup:
I have a RoR Application and a ChartJS Line Diagramm.
I want to add a Picture at a specific place but also text.
In the progress of the RoR Application answers of users will show up after time. Later the answer of two people will be shown, who is closer to the Average.
In my case I only need to know how a Picture could rendered inside.
Picture What it should look like
Here is my actual Code:
var points = [];
var data = {
datasets: [{
label: 'Antworten',
data: points,
radius: 6,
borderColor: "#000000",
borderWidth: 2,
backgroundColor: "#FF0000"
},
{
label: "",
fill: false,
lineTension: 0,
backgroundColor: "rgba(0,0,0,1)",
borderColor: "rgba(0,0,0,1)",
borderCapStyle: 'butt',
borderDash: [0],
borderDashOffset: 0.0,
showLine: true,
borderJoinStyle: 'miter',
pointBorderColor: "rgba(0,0,0,1)",
pointBackgroundColor: "rgba(1,0,0,1)",
pointBorderWidth: 8,
pointHoverRadius: 5,
pointHoverBackgroundColor: "rgba(75,192,192,1)",
pointHoverBorderColor: "rgba(0,0,0,1)",
pointHoverBorderWidth: 2,
pointRadius: 1,
pointStyle: "circle",
pointHitRadius: 10,
data: [{
x: 0,
y: 0
},{
x: 100,
y: 0
}],
borderColor: "#000000",
borderWidth: 5,
backgroundColor: "#FF0000"
}
]
};
window.onload = function() {
var ctx = document.getElementById("canvas").getContext("2d");
window.myLine = new Chart(ctx, {
type: 'line',
data,
options: {
legend: {
display: false
},
showLines: false,
scales: {
xAxes: [{
type: 'linear',
gridLines: {
display: false
},
position: 'bottom',
ticks: {
max: 100,
min: 0,
stepSize: 10
}
}],
yAxes: [{
display: false,
ticks: {
max: 1,
min: 0,
stepSize: 1
}
}]
}
}
});
};

Found an Answer:
Here my solution
var user_a = new Image();
user_a.src = 'http://i.imgur.com/fwhrCBs.png';
var data = {
datasets: [
{
label: 'Spieler 1',
data: user_a_answer,
radius: 1,
borderColor: "#000000",
borderWidth: 2,
pointStyle: user_a,
}]