Topic: chart can hold only one Label-array. Need more.
I need more labels for more datasets. Your example on your page shows only 1 dataset for 1 label-array, but it is possible to give more datasets, but as I see not more labels. How do I provide more Labels for more than 1 dataset?
I know in a chartjs example it is possible, but not in your mdb-component. The input [labels] can hold only 1 array, but I need more than one. I tried to provide the data like in an chartjs example but this has no effect.
don't know if this is even possible. If it's possible can you provide an example how to do it?
You can use datasets and chart options in the same way as in the chartjs library:
HTML:
<div style="display: block">
<canvas mdbChart
[chartType]="chartType"
[datasets]="chartDatasets"
[options]="chartOptions">
</canvas>
</div>
TS:
doughnutChartType: ChartType = "doughnut";
chartDatasets = [
{
data: [10, 20, 20, 30],
label: "Data 1",
labels: ["a", "b", "c", "d"],
backgroundColor: ["#ff6384", "#36a2eb", "#cc65fe", "#ffce56"]
},
{
data: [30, 50],
label: "Data 2",
labels: ["e", "f"],
backgroundColor: ["#ffffbb", "#0000aa"]
}
];
chartOptions = {
tooltips: {
callbacks: {
label: function(item, data) {
var label = data.datasets[item.datasetIndex].labels[item.index];
var value = data.datasets[item.datasetIndex].data[item.index];
return label + ": " + value;
}
}
}
};
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Answered
- User: Free
- Premium support: No
- Technology: MDB Angular
- MDB Version: 11.0.0
- Device: Desktop
- Browser: chrome
- OS: Windows 10
- Provided sample code: No
- Provided link: No
Arkadiusz Idzikowski staff commented 4 years ago
Can you provide an example of a chart that you want to create?
PaulW commented 4 years ago
Example:
this is the example from your doughnat-chart:
This here can be set in javascript with chartjs:
Where I can set a second label array? a second dataset is possible, but second labelarray? seems not possible. I also tried it with {labels: ['Red, 'Green', ... ], {labels: ['Blue', 'Grey', ...]} but this has no effect.