Chart.js Radar background color of background
anyone did know if there is possible to change background area of a Radar like the image, i poster?
javascript charts chart.js
asked Nov 13 at 14:42
user3699954
113
add a comment |
anyone did know if there is possible to change background area of a Radar like the image, i poster?
javascript charts chart.js
asked Nov 13 at 14:42
user3699954
113
add a comment |
anyone did know if there is possible to change background area of a Radar like the image, i poster?
javascript charts chart.js
asked Nov 13 at 14:42
user3699954
113
anyone did know if there is possible to change background area of a Radar like the image, i poster?
javascript charts chart.js
javascript charts chart.js
asked Nov 13 at 14:42
user3699954
113
asked Nov 13 at 14:42
user3699954
113
asked Nov 13 at 14:42
user3699954
113
asked Nov 13 at 14:42
user3699954
113
asked Nov 13 at 14:42
user3699954
113
113
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
I had the same issue, looks like the documentations isn't friendly for these cases, I based my solution on these examples:
- https://github.com/chartjs/Chart.js/issues/3956#issuecomment-287080840
- https://www.html5canvastutorials.com/tutorials/html5-canvas-circles/
My options object looks like this:
options: {
...
chartArea: { backgroundColor: 'red' },
...
}
I used the hook function beforeDraw in order to draw the background-color behind the chart and it looks like this:
Chart.pluginService.register({
beforeDraw: chart => {
const { ctx, scale, config } = chart
const { xCenter, yCenter, drawingArea: radius } = scale
ctx.save()
ctx.arc(xCenter, yCenter, radius, 0, Math.PI * 2)
ctx.fillStyle = config.options.chartArea.backgroundColor
ctx.fill()
ctx.restore()
}
});
In beforeDraw function you can catch options object with your custom attributes.
You can check full list of hooks here
answered Nov 19 at 0:07
cramirez
112
add a comment |
I assume you're using this module from the chart.js library
https://www.chartjs.org/docs/latest/charts/radar.html
The documentation says you can change the color specifying it on the datasets properties.
data: {
labels: ['Running', 'Swimming', 'Eating', 'Cycling'],
datasets: [{
data: [20, 10, 4, 2],
backgroundColor: 'red'
}]
}
Hope that helps.
answered Nov 13 at 14:51
Archagy
35110
Hi tks for your aswer, but I need to color not background of chart but area around chart
– user3699954
Nov 14 at 14:48
Could you add part of your code ? a JSFiddle could help a lot.
– Archagy
Nov 15 at 14:39
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
I had the same issue, looks like the documentations isn't friendly for these cases, I based my solution on these examples:
- https://github.com/chartjs/Chart.js/issues/3956#issuecomment-287080840
- https://www.html5canvastutorials.com/tutorials/html5-canvas-circles/
My options object looks like this:
options: {
...
chartArea: { backgroundColor: 'red' },
...
}
I used the hook function beforeDraw in order to draw the background-color behind the chart and it looks like this:
Chart.pluginService.register({
beforeDraw: chart => {
const { ctx, scale, config } = chart
const { xCenter, yCenter, drawingArea: radius } = scale
ctx.save()
ctx.arc(xCenter, yCenter, radius, 0, Math.PI * 2)
ctx.fillStyle = config.options.chartArea.backgroundColor
ctx.fill()
ctx.restore()
}
});
In beforeDraw function you can catch options object with your custom attributes.
You can check full list of hooks here
answered Nov 19 at 0:07
cramirez
112
add a comment |
I had the same issue, looks like the documentations isn't friendly for these cases, I based my solution on these examples:
- https://github.com/chartjs/Chart.js/issues/3956#issuecomment-287080840
- https://www.html5canvastutorials.com/tutorials/html5-canvas-circles/
My options object looks like this:
options: {
...
chartArea: { backgroundColor: 'red' },
...
}
I used the hook function beforeDraw in order to draw the background-color behind the chart and it looks like this:
Chart.pluginService.register({
beforeDraw: chart => {
const { ctx, scale, config } = chart
const { xCenter, yCenter, drawingArea: radius } = scale
ctx.save()
ctx.arc(xCenter, yCenter, radius, 0, Math.PI * 2)
ctx.fillStyle = config.options.chartArea.backgroundColor
ctx.fill()
ctx.restore()
}
});
In beforeDraw function you can catch options object with your custom attributes.
You can check full list of hooks here
answered Nov 19 at 0:07
cramirez
112
add a comment |
I had the same issue, looks like the documentations isn't friendly for these cases, I based my solution on these examples:
- https://github.com/chartjs/Chart.js/issues/3956#issuecomment-287080840
- https://www.html5canvastutorials.com/tutorials/html5-canvas-circles/
My options object looks like this:
options: {
...
chartArea: { backgroundColor: 'red' },
...
}
I used the hook function beforeDraw in order to draw the background-color behind the chart and it looks like this:
Chart.pluginService.register({
beforeDraw: chart => {
const { ctx, scale, config } = chart
const { xCenter, yCenter, drawingArea: radius } = scale
ctx.save()
ctx.arc(xCenter, yCenter, radius, 0, Math.PI * 2)
ctx.fillStyle = config.options.chartArea.backgroundColor
ctx.fill()
ctx.restore()
}
});
In beforeDraw function you can catch options object with your custom attributes.
You can check full list of hooks here
answered Nov 19 at 0:07
cramirez
112
I had the same issue, looks like the documentations isn't friendly for these cases, I based my solution on these examples:
- https://github.com/chartjs/Chart.js/issues/3956#issuecomment-287080840
- https://www.html5canvastutorials.com/tutorials/html5-canvas-circles/
My options object looks like this:
options: {
...
chartArea: { backgroundColor: 'red' },
...
}
I used the hook function beforeDraw in order to draw the background-color behind the chart and it looks like this:
Chart.pluginService.register({
beforeDraw: chart => {
const { ctx, scale, config } = chart
const { xCenter, yCenter, drawingArea: radius } = scale
ctx.save()
ctx.arc(xCenter, yCenter, radius, 0, Math.PI * 2)
ctx.fillStyle = config.options.chartArea.backgroundColor
ctx.fill()
ctx.restore()
}
});
In beforeDraw function you can catch options object with your custom attributes.
You can check full list of hooks here
answered Nov 19 at 0:07
cramirez
112
edited Nov 19 at 0:22
answered Nov 19 at 0:07
cramirez
112
answered Nov 19 at 0:07
cramirez
112
answered Nov 19 at 0:07
cramirez
112
112
add a comment |
add a comment |
I assume you're using this module from the chart.js library
https://www.chartjs.org/docs/latest/charts/radar.html
The documentation says you can change the color specifying it on the datasets properties.
data: {
labels: ['Running', 'Swimming', 'Eating', 'Cycling'],
datasets: [{
data: [20, 10, 4, 2],
backgroundColor: 'red'
}]
}
Hope that helps.
answered Nov 13 at 14:51
Archagy
35110
Hi tks for your aswer, but I need to color not background of chart but area around chart
– user3699954
Nov 14 at 14:48
Could you add part of your code ? a JSFiddle could help a lot.
– Archagy
Nov 15 at 14:39
add a comment |
I assume you're using this module from the chart.js library
https://www.chartjs.org/docs/latest/charts/radar.html
The documentation says you can change the color specifying it on the datasets properties.
data: {
labels: ['Running', 'Swimming', 'Eating', 'Cycling'],
datasets: [{
data: [20, 10, 4, 2],
backgroundColor: 'red'
}]
}
Hope that helps.
answered Nov 13 at 14:51
Archagy
35110
Hi tks for your aswer, but I need to color not background of chart but area around chart
– user3699954
Nov 14 at 14:48
Could you add part of your code ? a JSFiddle could help a lot.
– Archagy
Nov 15 at 14:39
add a comment |
I assume you're using this module from the chart.js library
https://www.chartjs.org/docs/latest/charts/radar.html
The documentation says you can change the color specifying it on the datasets properties.
data: {
labels: ['Running', 'Swimming', 'Eating', 'Cycling'],
datasets: [{
data: [20, 10, 4, 2],
backgroundColor: 'red'
}]
}
Hope that helps.
answered Nov 13 at 14:51
Archagy
35110
I assume you're using this module from the chart.js library
https://www.chartjs.org/docs/latest/charts/radar.html
The documentation says you can change the color specifying it on the datasets properties.
data: {
labels: ['Running', 'Swimming', 'Eating', 'Cycling'],
datasets: [{
data: [20, 10, 4, 2],
backgroundColor: 'red'
}]
}
Hope that helps.
answered Nov 13 at 14:51
Archagy
35110
answered Nov 13 at 14:51
Archagy
35110
answered Nov 13 at 14:51
Archagy
35110
answered Nov 13 at 14:51
Archagy
35110
35110
Hi tks for your aswer, but I need to color not background of chart but area around chart
– user3699954
Nov 14 at 14:48
Could you add part of your code ? a JSFiddle could help a lot.
– Archagy
Nov 15 at 14:39
add a comment |
Hi tks for your aswer, but I need to color not background of chart but area around chart
– user3699954
Nov 14 at 14:48
Could you add part of your code ? a JSFiddle could help a lot.
– Archagy
Nov 15 at 14:39
Hi tks for your aswer, but I need to color not background of chart but area around chart
– user3699954
Nov 14 at 14:48
Hi tks for your aswer, but I need to color not background of chart but area around chart
– user3699954
Nov 14 at 14:48
Could you add part of your code ? a JSFiddle could help a lot.
– Archagy
Nov 15 at 14:39
Could you add part of your code ? a JSFiddle could help a lot.
– Archagy
Nov 15 at 14:39
add a comment |
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