Flot Categories Bar Chart with a Variety of Colorful Bars

Question

Flot Categories Bar Chart with a Variety of Colorful Bars

Is there a way to assign a distinct color to each bar while using the "categories" mode in Flot?

The current implementation assigns the same color to every bar, which is the first color in the colors array. I want each bar to be displayed in its corresponding color from the colors array.

Here is the code snippet:

var data = [["Red",1],["Yellow",2],["Green",3]];

$.plot("#placeholder1div",[data], {
    series: {
        bars: {
            show: true,
            barWidth: 0.3,
            align: "center",
            lineWidth: 0,
            fill:.75
        }
    },
    xaxis: {
        mode: "categories",
    },
    colors: ["#FF0000","#FFFF00","#00FF00"]
});

javascript jquery css flot

Answer 1

Answer №1

My suggestion for working with Flot is to forego using the plugin and instead configure it manually.

// To create three separate bars, assign each to a different series with color as a series-level option
var data = [{data: [[0,1]], color: "red"}, 
            {data: [[1,2]], color: "yellow"},
            {data: [[2,3]], color: "green"}];

$.plot("#placeholder",data, {
    series: {
        bars: {
            show: true,
            barWidth: 0.3,
            align: "center",
            lineWidth: 0,
            fill:.75
        }
    },
    xaxis: {
        // Avoid using the categories plugin and label the ticks manually
        // This will be beneficial in the long term
        ticks: [[0,"Red"],[1,"Yellow"],[2,"Green"]]
    }
});

Code snippet:

var data = [{data: [[0,1]], color: "red"},
            {data: [[1,2]], color: "yellow"},
            {data: [[2,3]], color: "green"}];

$.plot("#placeholder",data, {
    series: {
        bars: {
            show: true,
            barWidth: 0.3,
            align: "center",
            lineWidth: 0,
            fill:.75
        }
    },
    xaxis: {
        ticks: [[0,"Red"],[1,"Yellow"],[2,"Green"]]
    }
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/flot/0.8.3/jquery.flot.js"></script>
<div id="placeholder" style="width:400px; height: 300px"></div>

Answer 2

My suggestion for working with Flot is to forego using the plugin and instead configure it manually.

// To create three separate bars, assign each to a different series with color as a series-level option
var data = [{data: [[0,1]], color: "red"}, 
            {data: [[1,2]], color: "yellow"},
            {data: [[2,3]], color: "green"}];

$.plot("#placeholder",data, {
    series: {
        bars: {
            show: true,
            barWidth: 0.3,
            align: "center",
            lineWidth: 0,
            fill:.75
        }
    },
    xaxis: {
        // Avoid using the categories plugin and label the ticks manually
        // This will be beneficial in the long term
        ticks: [[0,"Red"],[1,"Yellow"],[2,"Green"]]
    }
});

Code snippet:

var data = [{data: [[0,1]], color: "red"},
            {data: [[1,2]], color: "yellow"},
            {data: [[2,3]], color: "green"}];

$.plot("#placeholder",data, {
    series: {
        bars: {
            show: true,
            barWidth: 0.3,
            align: "center",
            lineWidth: 0,
            fill:.75
        }
    },
    xaxis: {
        ticks: [[0,"Red"],[1,"Yellow"],[2,"Green"]]
    }
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/flot/0.8.3/jquery.flot.js"></script>
<div id="placeholder" style="width:400px; height: 300px"></div>

Answer 3

Answer №2

Ensure that when inputting your information, include the specified colors:

const info = [
    {shade: '#ff00aa', details: [[0, 1]]},
    {shade: 'red', details: [[1, 1]]},
    {shade: 'yellow', details: [[2, 2],[3, 2]]},
    {shade: 'orange', details: [[4, 2]]},
    {shade: 'blue', details: [[5, 4],[6, 7]]},
    {shade: '#000000', details: [[7, 1]]}
];

Answer 4

Ensure that when inputting your information, include the specified colors:

const info = [
    {shade: '#ff00aa', details: [[0, 1]]},
    {shade: 'red', details: [[1, 1]]},
    {shade: 'yellow', details: [[2, 2],[3, 2]]},
    {shade: 'orange', details: [[4, 2]]},
    {shade: 'blue', details: [[5, 4],[6, 7]]},
    {shade: '#000000', details: [[7, 1]]}
];

Answer 5

Answer №3

Implement the following setup:

// Custom Colors 
var color01 = '#00cde2';
var color02 = '#ffb700';
var color03 = '#7ac70c';
var color04 = '#313541';
var color05 = '#fc3232';
var color06 = '#1cb0f6';
var color07 = '#00c07f';

var data = [
            {data: [[0, 4.1]], color: color01},
            {data: [[1, 1.8]], color: color02},
            {data: [[2, 2]], color: color03},
            {data: [[3, 4.5]], color: color04},
            {data: [[4, 3.7]], color: color05},
            {data: [[5, 5.6]], color: color06},
            {data: [[6, 2.6]], color: color07}
        ];

        $.plot($("#placeholder"), data, {
            series: {
                lines: {
                    fill: false
                },
                points: {show: false},
                bars: {
                    show: true,
                    align: 'center',
                    barWidth: 0.5,
                    fill: 1,
                    lineWidth: 1
                }
            },
            xaxis: {
                tickLength: 0,
                ticks: [
                    [0, "Data One"],
                    [1, "Data Two"],
                    [2, "Data Three"],
                    [3, "Data Four"],
                    [4, "Data Five"],
                    [5, "Data Six"],
                    [6, "Data Seven"]]
            },
            yaxis: {
                min: 0
            },
            grid: {
                hoverable: true,
                backgroundColor: {
                    colors: ["#fff", "#fff"]
                },
                borderWidth: {
                    top: 1,
                    right: 1,
                    bottom: 2,
                    left: 2
                },
                borderColor: {
                    top: "#e5e5e5", 
                    right: "#e5e5e5",
                    bottom: "#a5b2c0",
                    left: "#a5b2c0"
                }
            }
        });

@import 'https://fonts.googleapis.com/css?family=Open+Sans';
#placeholder{
    font-family: 'Open Sans', sans-serif;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="http://www.flotcharts.org/flot/jquery.flot.js"></script>

<div id="placeholder" style="width:100%; height: 300px"></div>

Answer 6

Implement the following setup:

// Custom Colors 
var color01 = '#00cde2';
var color02 = '#ffb700';
var color03 = '#7ac70c';
var color04 = '#313541';
var color05 = '#fc3232';
var color06 = '#1cb0f6';
var color07 = '#00c07f';

var data = [
            {data: [[0, 4.1]], color: color01},
            {data: [[1, 1.8]], color: color02},
            {data: [[2, 2]], color: color03},
            {data: [[3, 4.5]], color: color04},
            {data: [[4, 3.7]], color: color05},
            {data: [[5, 5.6]], color: color06},
            {data: [[6, 2.6]], color: color07}
        ];

        $.plot($("#placeholder"), data, {
            series: {
                lines: {
                    fill: false
                },
                points: {show: false},
                bars: {
                    show: true,
                    align: 'center',
                    barWidth: 0.5,
                    fill: 1,
                    lineWidth: 1
                }
            },
            xaxis: {
                tickLength: 0,
                ticks: [
                    [0, "Data One"],
                    [1, "Data Two"],
                    [2, "Data Three"],
                    [3, "Data Four"],
                    [4, "Data Five"],
                    [5, "Data Six"],
                    [6, "Data Seven"]]
            },
            yaxis: {
                min: 0
            },
            grid: {
                hoverable: true,
                backgroundColor: {
                    colors: ["#fff", "#fff"]
                },
                borderWidth: {
                    top: 1,
                    right: 1,
                    bottom: 2,
                    left: 2
                },
                borderColor: {
                    top: "#e5e5e5", 
                    right: "#e5e5e5",
                    bottom: "#a5b2c0",
                    left: "#a5b2c0"
                }
            }
        });

@import 'https://fonts.googleapis.com/css?family=Open+Sans';
#placeholder{
    font-family: 'Open Sans', sans-serif;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="http://www.flotcharts.org/flot/jquery.flot.js"></script>

<div id="placeholder" style="width:100%; height: 300px"></div>

Flot Categories Bar Chart with a Variety of Colorful Bars

Answer №1

Answer №2

Answer №3

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