ApexCharts Remove extra bottom padding - reactjs

I have the following bar chart configuration.
const series = [
{
name: 'Net Profit',
data: [18, 34, 55, 57, 80, 70],
},
];
const options = {
chart: {
type: 'bar',
height: '50px',
toolbar: {
show: false,
},
},
grid: {
show: false,
padding: {
top: 0,
bottom: 0,
},
xaxis: {
lines: {
show: false,
},
},
yaxis: {
lines: {
show: false,
},
},
},
plotOptions: {
bar: {
horizontal: false,
columnWidth: '80%',
barHeight: '100%',
},
},
dataLabels: {
enabled: false,
},
stroke: {
show: false,
width: 0,
colors: ['transparent'],
},
fill: {
opacity: 1,
colors: [
'#000000',
'#B32824',
'#1A73E8',
'#B32824',
'#1A73E8',
'#B32824',
],
type: 'solid',
},
tooltip: {
enabled: false,
},
xaxis: {
axisTicks: {
show: false,
},
axisBorder: {
show: false,
},
labels: {
show: false,
},
},
yaxis: {
axisTicks: {
show: false,
},
axisBorder: {
show: false,
},
labels: {
show: false,
},
},
};
I am getting extra padding at the bottom as below. how can I remove that?

If you don't want to show x-axis and y-axis in your chart, you can simply do
const options = {
chart: {
type: 'bar',
height: '250px',
sparkline: {
enabled: true
}
},
}
The sparkline option will remove all paddings/margins around the chart.

I was facing the same issue, and after reading the doc I found that you should set the value of parentHeightOffset as 0, something like this
var opt1 = {
chart: {
type: 'line',
height: 200,
...
parentHeightOffset: 0,
...
},
...
};

Related

change chart canvas size move mouse point over the chart using chart.js

I create some chart in dashboard using react-chart-js.
exmaple
but I have problem now chart not clear. I decided do change chart canvas size move mouse point over the chart . but i can't find solution for that.
i currently use "react-chartjs-2": "3.3.0" and "chart.js": "^3.6.0" packages
i use this option list for draw charts
const options = {
responsive: true,
animation: {
duration: 0,
},
plugins: {
legend: {
fullSize: false,
position: "bottom" as const,
labels: {
display: true,
},
},
title: {
display: true,
color: "white",
font: {
size: 14,
family: "tahoma",
weight: "normal",
style: "italic",
},
text: axis.thresholdValues.sensorName,
},
subtitle: {
display: true,
text: `average: x-axis: ${axis.average.x} y-axis: ${axis.average.y} z-axis: ${axis.average.z}`,
color: "white",
align: "end",
font: {
size: 12,
family: "tahoma",
weight: "normal",
style: "italic",
},
// padding: {
// bottom: 20,
// },
},
zoom: {
pan: {
// pan options and/or events
enabled: true,
speed: 0.01,
},
limits: {
// axis limits
},
zoom: {
// zoom options and/or events
wheel: {
enabled: true,
},
pinch: {
enabled: true,
},
speed: 0.01,
},
},
annotation: {
annotations: {
min: {
// type: 'line',
yMin: axis.thresholdValues.min,
yMax: axis.thresholdValues.min,
borderColor: "#D8D8D8",
// borderWidth: 2,
},
max: {
// type: 'line',
yMin: axis.thresholdValues.max,
yMax: axis.thresholdValues.max,
borderColor: "#DB00FF",
// borderWidth: 2,
},
},
},
tooltip: {
mode: "index",
intersect: false,
},
},
spanGaps: true,
datasets: {
line: {
pointRadius: 0, // disable for all `'line'` datasets
},
},
elements: {
point: {
radius: 0, // default to disabled in all datasets
},
},
transitions: {
zoom: {
animation: {
duration: 0,
},
},
},
scales: {
x: {
title: { display: true, text: "Time", align: "end" },
type: "time",
},
y: {
title: { display: true, text: "second", align: "top" },
},
},
events: ["click"],
hover: {
mode: "nearest",
intersect: false,
},
};
<Line data = {data} option = {option} />
Any one can suggest solution for it.

React Apexchart

How to correctly display large amount of data on ReactApexChart , Bar Chart. At image below, I am passing 552 entries. When amount of entries under 50 everything displays just fine, above this number starts look like a hell and performance is getting low. I am using React Js Class Component.
this.state = {
series: [{
name: props.name,
data: props.chartValue,
}, ],
options: {
grid: {
row: {
colors: ["#D6EAF8 ", "#D6EAF8"],
},
},
chart: {
type: "bar",
height: 350,
},
plotOptions: {
bar: {
borderRadius: 4,
horizontal: true,
colors: {
ranges: [{
from: 0,
to: Number.MAX_VALUE,
color: "#29ABE2",
}, ],
backgroundBarColors: [],
backgroundBarOpacity: 1,
backgroundBarRadius: 0,
},
},
},
dataLabels: {
enabled: true,
formatter: function(val) {
return val + ` min`;
},
offsetX: 15,
style: {
fontSize: "12px",
colors: ["#FFFFFF"],
},
},
xaxis: {
categories: props.ids,
labels: {
style: {
colors: [],
fontSize: "15px",
fontWeight: 500,
},
},
},
yaxis: {
categories: props.differenceInTime,
labels: {
style: {
colors: [],
fontSize: "15px",
fontWeight: 500,
},
},
axisTicks: {
show: true,
borderType: "solid",
color: "#78909C",
width: 10,
offsetX: 0,
offsetY: 0,
},
},
},
};
<div id="chart">
<ReactApexChart options={this.state.options} series={this.state.series} type="bar" />
</div>
Here is 552 entries
why put max integer for the colors? That could be a performance issue
ranges: [{
from: 0,
to: Number.MAX_VALUE,
color: "#29ABE2",
}

how to hide x axis bar on apex chart?

I'm used react-apexcharts to make this below graph, i need to show a minimal view of a graph so i hide both x, y axis, legends, grid and everything, but this bar at the bottom not hiding. i couldn't find the right option on the documentation! is there any way to hide this?
This is the current output i'm getting!
const ProductivityGraph = () => {
const series = [{
name: 'Series A',
data: [23, 24, 25, 15, 25, 28, 38, 46],
},
{
name: 'Series B',
data: [20, 29, 37, 36, 44, 45, 50, 58],
},
];
const options:any = {
chart: {
toolbar: { // Hamburger menu at top
show: false,
},
height: 350,
type: 'line',
zoom: {
enabled: false,
},
},
dataLabels: {
enabled: false,
},
stroke: {
curve: 'smooth',
width: 2,
},
title: {
text: undefined,
align: 'left',
},
grid: {
show: false,
},
legend: {
show: false,
},
xaxis: {
show: false,
labels: {
show: false,
},
},
yaxis: {
show: false,
labels: {
show: false,
},
axisBorder: {
show: false,
},
axisTicks: {
show: false,
},
crosshairs: {
show: false,
},
tooltip: {
enabled: false,
},
},
};
return (
<div>
<ReactApexChart options={options} series={series} type="line" width={250} />
</div>
);
};
In your options replace xaxis with below one
xaxis: {
show: false,
labels: {
show: false
},
axisBorder: {
show: false
},
axisTicks: {
show: false
}
},

Echarts 3.6.2 Legend Type "scroll" does not be applied correctly

In my angularJs project,I have a pie Echarts and I define it like below.The problem is that I may have lots of legend and I see I can use type:'scroll' to make it from here, but I failed and it has no impact.
$scope.pieEcharts1 = {
option: {
title: {
text: 'MyPieChart',
left: 'left',
},
tooltip: {
trigger: 'item',
formatter: "{a} <br/>{b} : {c} ({d}%)"
},
legend: {
orient: 'vertical',
left: 'right',
type:'scroll',//does not work
data: []
},
label: {
normal: {
show: true,
formatter: '{d}%'
}
},
labelLine: {
normal: {
show: true
}
},
series: [{
name: 'MyData',
type: 'pie',
radius: '62%',
center: ['50%', '50%'],
data: [],
itemStyle: {
emphasis: {
shadowBlur: 10,
shadowOffsetX: 0,
shadowColor: 'rgba(0, 0, 0, 0.5)'
}
}
}]
}
}
}
//http request to get data
$scope.pieEcharts1.option.legend.data = nameArray
$scope.pieEcharts1.option.series[0] = dataArray
What is the problem in my code?
The scrollable legned is supported from v3.7.0.
https://echarts.apache.org/zh/changelog.html#v3-7-0

Chartjs: Draw chart with only yAxis zero tick

Hell, all,
I would like to draw the chart like this:
Currently, I can use afterBuildTicks to get only zero yAxis. But the problem is that the whole other ticks were removed also. So Not sure if we have a way to draw zero tick and keep other ticks hidden except the label.
var ctx = document.getElementById("myChart").getContext("2d");
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: ['Value 1', 'Value 2', 'Value 3', 'Value 4'],
datasets: [{
label: "Dataset",
data: [20, 15, 27, 18],
backgroundColor: 'rgba(54, 162, 235,0.5)',
}],
},
options: {
responsive: true,
elements: {
line: {
fill: false
}
},
scales: {
xAxes: [
{
position: 'top',
display: true,
gridLines: {
display: true,
},
stacked: true,
ticks: {
fontColor: "#C4C4C4",
fontSize: 10,
}
}
],
yAxes: [
{
type: 'linear',
display: true,
position: 'right',
id: 'y-axis-1',
gridLines: {
display: true,
},
labels: {
show: true
},
stacked: false,
ticks: {
fontColor: "#C4C4C4",
fontSize: 10,
precision: 0,
suggestedMax: 100,
suggestedMin: -100
},
afterBuildTicks:function (axis) {
axis.ticks = [0]
}
}
]
},
tooltips: {
mode: 'label',
bodySpacing: 10,
titleMarginBottom: 10,
titleFontSize: 14,
titleFontStyle: 'bold',
footerAlign: 'right',
callbacks: {
label: (tooltipItem, data) => {
const label = data.datasets[tooltipItem.datasetIndex].label || ''
const value = tooltipItem.value
return ` ${label}: ${value}`
}
}
}
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.5.0/Chart.min.js"></script>
<canvas id="myChart" height="100"></canvas>
Thanks so much
I found the solution that use: gridLines options to draw chart with width is zero:
gridLines: {
display: true,
tickMarkLength: 10,
lineWidth: 0
}

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