ChartJS Line Charts - remove color underneath lines

Question

Okay, so I have a ChartJS line chart working that populates directly from data coming for my db. What I need now is to get rid of the color underneath each of the lines. [as seen in the screenshot below].

Here's my HTML:

<div ng-if="hasData">
    <canvas id="line" class="chart chart-line" data="data" labels="labels" legend="true" series="series" options="options" click="onClick"></canvas>
<div>

Here's My JS:

            scope.labels = ['02:00','04:00','06:00', '08:00', '10:00', '12:00','14:00', '16:00', '18:00', '20:00', '22:00'];
            scope.series = series;
            scope.data = [volumesSelectedDate, volumesPeakDate, volumesModelCapacity];
            
                            
            scope.options = {
                scaleOverride: true,
                scaleStartValue: 0,
                scaleSteps: 11,
                scaleStepWidth: 6910,
            }
            
            scope.loadingDailyAppVolumes = false;
            scope.hasData = true;
            
            
        };
        scope.onClick = function (points, evt) {
            //console.log(points, evt);
        };
    

So, how would I go about this? Also, how would I go about manually setting the color for each line?

Example:

selected date: blue, peak date: yellow, model capacity: grey.

Thanks.

Answer 1

Check this section on the Chart.js docs. Set the fill property to false within your dataset configuration:

var data = {
    labels: ["January", "February", "March", "April", "May", "June", "July"],
    datasets: [{
        label: "My First dataset",
        fill: false,
        data: [1, 2, 3]
    }]
};

Specify an array to the borderColor property if you want each line to have a different stroke color:

var myColors = ['red', 'green', 'blue']; // Define your colors

var data = {
    labels: ["January", "February", "March", "April", "May", "June", "July"],
    datasets: [{
        label: "My First dataset",
        fill: false,
        borderColor: myColors
        data: [1, 2, 3]
    }]
};