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Count up values in Chart JS
2019 Community Moderator ElectionWhich “href” value should I use for JavaScript links, “#” or “javascript:void(0)”?Set a default parameter value for a JavaScript functionHow can I get query string values in JavaScript?Sort array of objects by string property valueCopy array by valueHow to change color of labels in bar chart using chart.jscustom bar at specific position chart jsData label over stacked bar chartChart.js max legend heightUpdate yAxes when changing xAxes min and max for ChartJS
how do I make the values in Chart JS update as the bar progresses?
For example, I want the values for each bar to start at 0 and count up to there value, stopping when the bar has reached it's height.
At the moment, it just displays it's full value upon animation start (when the page loads)
Chart JS docs:
https://www.chartjs.org/
Here is a plugin I found:
https://emn178.github.io/chartjs-plugin-labels/samples/demo/
Here is a JS Fiddle (ignore the shaking!)
https://jsfiddle.net/8uehq5xr/
<!doctype html>
<html>
<head>
<title>Horizontal Bar Chart</title>
<script src="../../node_modules/chart.js/dist/Chart.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chart.js@2.7.3/dist/Chart.min.js">
</script>
<script src="https://cdn.jsdelivr.net/gh/emn178/chartjs-plugin-
labels/src/chartjs-plugin-labels.js"></script>
</head>
<body>
<canvas id="bar-chart" width="800" height="450"></canvas>
<div id="value">100</div>
<Script>
// Bar chart
new Chart(document.getElementById("bar-chart"),
type: 'bar',
data:
labels: ["Africa", "Asia", "Europe", "Latin America", "North America"],
datasets: [
label: "Population (millions)",
backgroundColor: ["#3e95cd", "#8e5ea2","#3cba9f","#e8c3b9","#c45850"],
data: [2478,5267,734,784,433]
]
,
options:
plugins:
labels:
render: 'value',
fontSize: 20,
,
scales:
xAxes: [
display: false
],
yAxes: [
display: false
],
,
tooltips: enabled: true,
hover: animationDuration: 1,
);
</script>
</body>
</html>
javascript chart.js
asked 21 hours ago
R.DixonR.Dixon
113
add a comment |
how do I make the values in Chart JS update as the bar progresses?
For example, I want the values for each bar to start at 0 and count up to there value, stopping when the bar has reached it's height.
At the moment, it just displays it's full value upon animation start (when the page loads)
Chart JS docs:
https://www.chartjs.org/
Here is a plugin I found:
https://emn178.github.io/chartjs-plugin-labels/samples/demo/
Here is a JS Fiddle (ignore the shaking!)
https://jsfiddle.net/8uehq5xr/
<!doctype html>
<html>
<head>
<title>Horizontal Bar Chart</title>
<script src="../../node_modules/chart.js/dist/Chart.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chart.js@2.7.3/dist/Chart.min.js">
</script>
<script src="https://cdn.jsdelivr.net/gh/emn178/chartjs-plugin-
labels/src/chartjs-plugin-labels.js"></script>
</head>
<body>
<canvas id="bar-chart" width="800" height="450"></canvas>
<div id="value">100</div>
<Script>
// Bar chart
new Chart(document.getElementById("bar-chart"),
type: 'bar',
data:
labels: ["Africa", "Asia", "Europe", "Latin America", "North America"],
datasets: [
label: "Population (millions)",
backgroundColor: ["#3e95cd", "#8e5ea2","#3cba9f","#e8c3b9","#c45850"],
data: [2478,5267,734,784,433]
]
,
options:
plugins:
labels:
render: 'value',
fontSize: 20,
,
scales:
xAxes: [
display: false
],
yAxes: [
display: false
],
,
tooltips: enabled: true,
hover: animationDuration: 1,
);
</script>
</body>
</html>
javascript chart.js
asked 21 hours ago
R.DixonR.Dixon
113
try to draw the chart with ajax. try to redraw the chart after ajax callbacks
– rejin
20 hours ago
add a comment |
how do I make the values in Chart JS update as the bar progresses?
For example, I want the values for each bar to start at 0 and count up to there value, stopping when the bar has reached it's height.
At the moment, it just displays it's full value upon animation start (when the page loads)
Chart JS docs:
https://www.chartjs.org/
Here is a plugin I found:
https://emn178.github.io/chartjs-plugin-labels/samples/demo/
Here is a JS Fiddle (ignore the shaking!)
https://jsfiddle.net/8uehq5xr/
<!doctype html>
<html>
<head>
<title>Horizontal Bar Chart</title>
<script src="../../node_modules/chart.js/dist/Chart.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chart.js@2.7.3/dist/Chart.min.js">
</script>
<script src="https://cdn.jsdelivr.net/gh/emn178/chartjs-plugin-
labels/src/chartjs-plugin-labels.js"></script>
</head>
<body>
<canvas id="bar-chart" width="800" height="450"></canvas>
<div id="value">100</div>
<Script>
// Bar chart
new Chart(document.getElementById("bar-chart"),
type: 'bar',
data:
labels: ["Africa", "Asia", "Europe", "Latin America", "North America"],
datasets: [
label: "Population (millions)",
backgroundColor: ["#3e95cd", "#8e5ea2","#3cba9f","#e8c3b9","#c45850"],
data: [2478,5267,734,784,433]
]
,
options:
plugins:
labels:
render: 'value',
fontSize: 20,
,
scales:
xAxes: [
display: false
],
yAxes: [
display: false
],
,
tooltips: enabled: true,
hover: animationDuration: 1,
);
</script>
</body>
</html>
javascript chart.js
asked 21 hours ago
R.DixonR.Dixon
113
how do I make the values in Chart JS update as the bar progresses?
For example, I want the values for each bar to start at 0 and count up to there value, stopping when the bar has reached it's height.
At the moment, it just displays it's full value upon animation start (when the page loads)
Chart JS docs:
https://www.chartjs.org/
Here is a plugin I found:
https://emn178.github.io/chartjs-plugin-labels/samples/demo/
Here is a JS Fiddle (ignore the shaking!)
https://jsfiddle.net/8uehq5xr/
<!doctype html>
<html>
<head>
<title>Horizontal Bar Chart</title>
<script src="../../node_modules/chart.js/dist/Chart.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chart.js@2.7.3/dist/Chart.min.js">
</script>
<script src="https://cdn.jsdelivr.net/gh/emn178/chartjs-plugin-
labels/src/chartjs-plugin-labels.js"></script>
</head>
<body>
<canvas id="bar-chart" width="800" height="450"></canvas>
<div id="value">100</div>
<Script>
// Bar chart
new Chart(document.getElementById("bar-chart"),
type: 'bar',
data:
labels: ["Africa", "Asia", "Europe", "Latin America", "North America"],
datasets: [
label: "Population (millions)",
backgroundColor: ["#3e95cd", "#8e5ea2","#3cba9f","#e8c3b9","#c45850"],
data: [2478,5267,734,784,433]
]
,
options:
plugins:
labels:
render: 'value',
fontSize: 20,
,
scales:
xAxes: [
display: false
],
yAxes: [
display: false
],
,
tooltips: enabled: true,
hover: animationDuration: 1,
);
</script>
</body>
</html>
javascript chart.js
javascript chart.js
asked 21 hours ago
R.DixonR.Dixon
113
asked 21 hours ago
R.DixonR.Dixon
113
asked 21 hours ago
R.DixonR.Dixon
113
asked 21 hours ago
R.DixonR.Dixon
113
asked 21 hours ago
R.DixonR.Dixon
113
113
try to draw the chart with ajax. try to redraw the chart after ajax callbacks
– rejin
20 hours ago
add a comment |
try to draw the chart with ajax. try to redraw the chart after ajax callbacks
– rejin
20 hours ago
try to draw the chart with ajax. try to redraw the chart after ajax callbacks
– rejin
20 hours ago
try to draw the chart with ajax. try to redraw the chart after ajax callbacks
– rejin
20 hours ago
add a comment |
1 Answer
1
active
oldest
votes
I assume you would like something like a fast counter synchronized with chart drawing, can't you do it with just a for loop refreshing data given to chart.js until you reach their real value ?
No need for a plugin if it's a that small improvement you need
Example:
final data is [2478,5267,734,784,433]
initial data is [0, 0, 0, 0, 0]
1°) set an interval incrementing data of 1/10 of their value by example, each 200ms
-> after 200ms you now have [247, 526, 73, 78, 43]
2°) cancel interval once you reached final data
You can then play with interval and increment steps (1/100 in stead of 1/10 by example)
Here is a workaround (but I bet you block with chart drawing ?)
const currentData = [0,0,0,0,0];
const finalData = [2478,5267,734,784,433];
const stepTick = 0.1;
let stepNumber = 1;
const redrawingAfter1Step = setInterval(() =>
for(let i = 0; i < currentData.length; i++)
currentData[i] = stepTick * stepNumber * finalData[i];
drawChart(currentData);
if ((stepNumber * stepTick) === 1)
clearInterval(redrawingAfter1Step);
stepNumber++;
, 500);
answered 20 hours ago
Antoine GautrainAntoine Gautrain
112
New contributor
Antoine Gautrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Yes, that was my thought - but I don't know how to do that in the code
– R.Dixon
20 hours ago
I've added a JS Fiddle in the OP above. Try adding it there.
– R.Dixon
19 hours ago
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I assume you would like something like a fast counter synchronized with chart drawing, can't you do it with just a for loop refreshing data given to chart.js until you reach their real value ?
No need for a plugin if it's a that small improvement you need
Example:
final data is [2478,5267,734,784,433]
initial data is [0, 0, 0, 0, 0]
1°) set an interval incrementing data of 1/10 of their value by example, each 200ms
-> after 200ms you now have [247, 526, 73, 78, 43]
2°) cancel interval once you reached final data
You can then play with interval and increment steps (1/100 in stead of 1/10 by example)
Here is a workaround (but I bet you block with chart drawing ?)
const currentData = [0,0,0,0,0];
const finalData = [2478,5267,734,784,433];
const stepTick = 0.1;
let stepNumber = 1;
const redrawingAfter1Step = setInterval(() =>
for(let i = 0; i < currentData.length; i++)
currentData[i] = stepTick * stepNumber * finalData[i];
drawChart(currentData);
if ((stepNumber * stepTick) === 1)
clearInterval(redrawingAfter1Step);
stepNumber++;
, 500);
answered 20 hours ago
Antoine GautrainAntoine Gautrain
112
New contributor
Antoine Gautrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Yes, that was my thought - but I don't know how to do that in the code
– R.Dixon
20 hours ago
I've added a JS Fiddle in the OP above. Try adding it there.
– R.Dixon
19 hours ago
add a comment |
I assume you would like something like a fast counter synchronized with chart drawing, can't you do it with just a for loop refreshing data given to chart.js until you reach their real value ?
No need for a plugin if it's a that small improvement you need
Example:
final data is [2478,5267,734,784,433]
initial data is [0, 0, 0, 0, 0]
1°) set an interval incrementing data of 1/10 of their value by example, each 200ms
-> after 200ms you now have [247, 526, 73, 78, 43]
2°) cancel interval once you reached final data
You can then play with interval and increment steps (1/100 in stead of 1/10 by example)
Here is a workaround (but I bet you block with chart drawing ?)
const currentData = [0,0,0,0,0];
const finalData = [2478,5267,734,784,433];
const stepTick = 0.1;
let stepNumber = 1;
const redrawingAfter1Step = setInterval(() =>
for(let i = 0; i < currentData.length; i++)
currentData[i] = stepTick * stepNumber * finalData[i];
drawChart(currentData);
if ((stepNumber * stepTick) === 1)
clearInterval(redrawingAfter1Step);
stepNumber++;
, 500);
answered 20 hours ago
Antoine GautrainAntoine Gautrain
112
New contributor
Antoine Gautrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Yes, that was my thought - but I don't know how to do that in the code
– R.Dixon
20 hours ago
I've added a JS Fiddle in the OP above. Try adding it there.
– R.Dixon
19 hours ago
add a comment |
I assume you would like something like a fast counter synchronized with chart drawing, can't you do it with just a for loop refreshing data given to chart.js until you reach their real value ?
No need for a plugin if it's a that small improvement you need
Example:
final data is [2478,5267,734,784,433]
initial data is [0, 0, 0, 0, 0]
1°) set an interval incrementing data of 1/10 of their value by example, each 200ms
-> after 200ms you now have [247, 526, 73, 78, 43]
2°) cancel interval once you reached final data
You can then play with interval and increment steps (1/100 in stead of 1/10 by example)
Here is a workaround (but I bet you block with chart drawing ?)
const currentData = [0,0,0,0,0];
const finalData = [2478,5267,734,784,433];
const stepTick = 0.1;
let stepNumber = 1;
const redrawingAfter1Step = setInterval(() =>
for(let i = 0; i < currentData.length; i++)
currentData[i] = stepTick * stepNumber * finalData[i];
drawChart(currentData);
if ((stepNumber * stepTick) === 1)
clearInterval(redrawingAfter1Step);
stepNumber++;
, 500);
answered 20 hours ago
Antoine GautrainAntoine Gautrain
112
New contributor
Antoine Gautrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I assume you would like something like a fast counter synchronized with chart drawing, can't you do it with just a for loop refreshing data given to chart.js until you reach their real value ?
No need for a plugin if it's a that small improvement you need
Example:
final data is [2478,5267,734,784,433]
initial data is [0, 0, 0, 0, 0]
1°) set an interval incrementing data of 1/10 of their value by example, each 200ms
-> after 200ms you now have [247, 526, 73, 78, 43]
2°) cancel interval once you reached final data
You can then play with interval and increment steps (1/100 in stead of 1/10 by example)
Here is a workaround (but I bet you block with chart drawing ?)
const currentData = [0,0,0,0,0];
const finalData = [2478,5267,734,784,433];
const stepTick = 0.1;
let stepNumber = 1;
const redrawingAfter1Step = setInterval(() =>
for(let i = 0; i < currentData.length; i++)
currentData[i] = stepTick * stepNumber * finalData[i];
drawChart(currentData);
if ((stepNumber * stepTick) === 1)
clearInterval(redrawingAfter1Step);
stepNumber++;
, 500);
answered 20 hours ago
Antoine GautrainAntoine Gautrain
112
New contributor
Antoine Gautrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 19 hours ago
answered 20 hours ago
Antoine GautrainAntoine Gautrain
112
New contributor
Antoine Gautrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 20 hours ago
Antoine GautrainAntoine Gautrain
112
answered 20 hours ago
Antoine GautrainAntoine Gautrain
112
112
New contributor
Antoine Gautrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Antoine Gautrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Antoine Gautrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Yes, that was my thought - but I don't know how to do that in the code
– R.Dixon
20 hours ago
I've added a JS Fiddle in the OP above. Try adding it there.
– R.Dixon
19 hours ago
add a comment |
Yes, that was my thought - but I don't know how to do that in the code
– R.Dixon
20 hours ago
I've added a JS Fiddle in the OP above. Try adding it there.
– R.Dixon
19 hours ago
Yes, that was my thought - but I don't know how to do that in the code
– R.Dixon
20 hours ago
Yes, that was my thought - but I don't know how to do that in the code
– R.Dixon
20 hours ago
I've added a JS Fiddle in the OP above. Try adding it there.
– R.Dixon
19 hours ago
I've added a JS Fiddle in the OP above. Try adding it there.
– R.Dixon
19 hours ago
add a comment |
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try to draw the chart with ajax. try to redraw the chart after ajax callbacks
– rejin
20 hours ago