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Configuring your Chart using Vue

FusionCharts Suite XT includes advanced features that let you add more context to your chart and make data visualization simpler. These features include chart updates, annotations, trend-lines, and events.

This article focuses on how you can configure the following using vue-fusioncharts component:

Update Chart Data

A chart, configured to update data values dynamically, is shown below (click Update Chart Data to start):

FusionCharts will load here..
{
    "chart": {
        "caption": "Countries With Most Oil Reserves [2017-18]",
        "subCaption": "In MMbbl = One Million barrels",
        "xAxisName": "Country",
        "yAxisName": "Reserves (MMbbl)",
        "numberSuffix": "K",
        "theme": "fusion"
    },
    "data": [
        {
            "label": "Venezuela",
            "value": "290"
        },
        {
            "label": "Saudi",
            "value": "260"
        },
        {
            "label": "Canada",
            "value": "180"
        },
        {
            "label": "Iran",
            "value": "140"
        },
        {
            "label": "Russia",
            "value": "115"
        },
        {
            "label": "UAE",
            "value": "100"
        },
        {
            "label": "US",
            "value": "30"
        },
        {
            "label": "China",
            "value": "30"
        }
    ]
}

The code to render a chart is given below:

//Including Vue
import Vue from 'vue';

// Include the vue-fusioncharts component
import VueFusionCharts from 'vue-fusioncharts';

//Include the FusionCharts library
import FusionCharts from 'fusioncharts';

//Include the chart type
import Charts from 'fusioncharts/fusioncharts.charts';

//import the theme
import FusionTheme from 'fusioncharts/themes/fusioncharts.theme.fusion';

// register VueFusionCharts component
Vue.use(VueFusionCharts, FusionCharts, Charts, FusionTheme)

var app = new Vue({
    el: '#app',
    data: {
        type: 'column2d',
        width: '700',
        height: '400',
        dataFormat: 'json',
        dataSource: {
            // Chart Configuration
            "chart": {
                "caption": "Countries With Most Oil Reserves [2017-18]",
                "subCaption": "In MMbbl = One Million barrels",
                "xAxisName": "Country",
                "yAxisName": "Reserves (MMbbl)",
                "numberSuffix": "K",
                "theme": "fusion",
            },
            // Chart Data
            "data": [{
                "label": "Venezuela",
                "value": "290"
            }, {
                "label": "Saudi",
                "value": "260"
            }, {
                "label": "Canada",
                "value": "180"
            }, {
                "label": "Iran",
                "value": "140"
            }, {
                "label": "Russia",
                "value": "115"
            }, {
                "label": "UAE",
                "value": "100"
            }, {
                "label": "US",
                "value": "30"
            }, {
                "label": "China",
                "value": "30"
            }]
        }
    },
    events: {
        "beforeRender": function(evt, args) {
            var controls = document.createElement('div'),
                chartRef = evt.sender;

            chartRef.getRandomNumber = function() {
                var max = 300,
                    min = 50;
                return Math.round(((max - min) * Math.random()) + min);
            }
            updateData = function() {

                //clones data
                var data = Object.assign({}, chartRef.getJSONData());
                data.data[2].label = 'Canada';
                data.data[2].value = chartRef.getRandomNumber();

                data.data[3].label = 'Iran';
                data.data[3].value = chartRef.getRandomNumber();
                chartRef.setJSONData(data);
            };
            controls.innerHTML = '<button style="background-color: #6957da; border: none; border-radius: 3px; color: white; padding: 4px 12px; text-align: center; cursor: pointer; outline: none; text-decoration: none; display: inline-block; font-size: 14px;" onClick="updateData()" >Update chart data</button>';
            controls.style.cssText = 'text-align: center; width: 100%;';
            args.container.appendChild(controls);
        }
    },
});

Now, use the fusioncharts directive in a template. The HTML template is given below:

<div id="app">
    <fusioncharts
    :type="type"
    :width="width"
    :height="height"
    :dataFormat="dataFormat"
    :dataSource="dataSource"
    ></fusioncharts>
    <button @click="updateData">Click to Update Data</button>
</div>

The above chart has been rendered using the following steps:

  1. Include the necessary libraries and components using import. For example, vue-fusioncharts, fusioncharts, etc.

  2. Register vue-fusioncharts component.

  3. Store the chart configuration in a JSON object. In the JSON object:

    • Set the chart type as column2d. Find the complete list of chart types with their respective alias here.
    • Set the width and height of the chart in pixels.
    • Set the dataFormat as JSON.
    • Embed the json data as the value of dataSource.

  4. Generate random numbers to update the chart using Math.random().

  5. Add the updateData() function to randomly update the value of the chart when the button is clicked.

  6. Add the controls.innerHTML to create the button inside the <div>.

  7. Create a fusioncharts directive in a template.

Update Chart Attributes

A chart, configured to update the chart caption, sub-caption alignment and chart background dynamically, is shown below (click any one of the buttons shown below the chart to change the chart background and caption, sub-caption alignment):

FusionCharts will load here..
{
    "chart": {
        "caption": "Countries With Most Oil Reserves [2017-18]",
        "subCaption": "In MMbbl = One Million barrels",
        "xAxisName": "Country",
        "yAxisName": "Reserves (MMbbl)",
        "numberSuffix": "K",
        "theme": "fusion"
    },
    "data": [
        {
            "label": "Venezuela",
            "value": "290"
        },
        {
            "label": "Saudi",
            "value": "260"
        },
        {
            "label": "Canada",
            "value": "180"
        },
        {
            "label": "Iran",
            "value": "140"
        },
        {
            "label": "Russia",
            "value": "115"
        },
        {
            "label": "UAE",
            "value": "100"
        },
        {
            "label": "US",
            "value": "30"
        },
        {
            "label": "China",
            "value": "30"
        }
    ]
}

The JSON data to render the above chart is given below:

{
    // Chart Configuration
    "chart": {
        "caption": "Countries With Most Oil Reserves [2017-18]",
        "subCaption": "In MMbbl = One Million barrels",
        "xAxisName": "Country",
        "yAxisName": "Reserves (MMbbl)",
        "numberSuffix": "K",
        "theme": "fusion",
    },
    // Chart Data
    "data": [{
        "label": "Venezuela",
        "value": "290"
    }, {
        "label": "Saudi",
        "value": "260"
    }, {
        "label": "Canada",
        "value": "180"
    }, {
        "label": "Iran",
        "value": "140"
    }, {
        "label": "Russia",
        "value": "115"
    }, {
        "label": "UAE",
        "value": "100"
    }, {
        "label": "US",
        "value": "30"
    }, {
        "label": "China",
        "value": "30"
    }]
},

In this step, we will create an instance of the chart type as column2d, set the width and height (in pixels or %), and finally specify the JSON data for the chart as a string.

The code to render a chart is given below:

//Including Vue
import Vue from 'vue';

// Include the vue-fusioncharts component
import VueFusionCharts from 'vue-fusioncharts';

//Include the FusionCharts library
import FusionCharts from 'fusioncharts';

//Include the chart type
import Charts from 'fusioncharts/fusioncharts.charts';

//import the theme
import FusionTheme from 'fusioncharts/themes/fusioncharts.theme.fusion';

// Register VueFusionCharts component
Vue.use(VueFusionCharts);

var app = new Vue({
    el: '#app',
    data: {
        width: '700',
        height: '400',
        type: 'column2d',
        dataFormat: 'json',
        dataSource: {
            // Chart Configuration
            "chart": {
                "caption": "Countries With Most Oil Reserves [2017-18]",
                "subCaption": "In MMbbl = One Million barrels",
                "xAxisName": "Country",
                "yAxisName": "Reserves (MMbbl)",
                "numberSuffix": "K",
                "theme": "fusion",
            },
            // Chart Data
            "data": [{
                "label": "Venezuela",
                "value": "290"
            }, {
                "label": "Saudi",
                "value": "260"
            }, {
                "label": "Canada",
                "value": "180"
            }, {
                "label": "Iran",
                "value": "140"
            }, {
                "label": "Russia",
                "value": "115"
            }, {
                "label": "UAE",
                "value": "100"
            }, {
                "label": "US",
                "value": "30"
            }, {
                "label": "China",
                "value": "30"
            }]
        }
    },
    events: {
        "beforeRender": function(evt, args) {
            var chartRef = evt.sender;

            chartRef.originalData = JSON.parse(JSON.stringify(chartRef.getJSONData()));

            chartRef.changeBackground = function() {
                var data = chartRef.getJSONData(); //copy of object
                data.chart.bgColor = '#efefef';
                chartRef.setJSONData(data);
            };

            // Resets all the chart data to it's initial verison
            chartRef.resetAttr = function() {
                chartRef.setJSONData(chartRef.originalData);
            };

            // Makes the caption text left aligned
            chartRef.makeCaptionLeft = function() {
                var data = chartRef.getJSONData();
                data.chart.captionAlignment = 'left';
                chartRef.setJSONData(data);
            };


            var btnContainer = document.createElement('div'),
                str;

            // buttons 
            str = '<button id="bgColorBtn" style="background-color: #6957da; border: none; border-radius: 3px; color: white; padding: 4px 12px; text-align: center; cursor: pointer; outline: none; text-decoration: none; display: inline-block; font-size: 14px;">Change Chart Background</button>&nbsp&nbsp';
            str += '<button id="captionAlignBtn" style="background-color: #6957da; border: none; border-radius: 3px; color: white; padding: 4px 12px; text-align: center; cursor: pointer; outline: none; text-decoration: none; display: inline-block; font-size: 14px;">Make Caption Text Left-Aligned</button>&nbsp&nbsp';
            str += '<button id="resetAttrBtn" style="background-color: #6957da; border: none; border-radius: 3px; color: white; padding: 4px 12px; text-align: center; cursor: pointer; outline: none; text-decoration: none; display: inline-block; font-size: 14px;">Reset Attributes</button>';

            btnContainer.style.cssText = "text-align: center; width: 100%; margin: 10px;";
            btnContainer.innerHTML = str;
            //button attachment
            args.container.parentNode.insertBefore(btnContainer, args.container.nextSibling);
        },

        "renderComplete": function(evt, args) {
            var chartRef = evt.sender,
                bgColorBtn = document.getElementById('bgColorBtn'),
                captionAlignBtn = document.getElementById('captionAlignBtn'),
                resetAttrBtn = document.getElementById('resetAttrBtn');

            bgColorBtn.onclick = chartRef.changeBackground;
            captionAlignBtn.onclick = chartRef.makeCaptionLeft;
            resetAttrBtn.onclick = chartRef.resetAttr;
        }
    }
});

Now, use the fusioncharts directive in a template. The HTML template is given below:

<div id="app">
    <fusioncharts
    :type="type"
    :width="width"
    :height="height"
    :dataFormat="dataFormat"
    :dataSource="dataSource"
    ></fusioncharts>
    <button @click="changeBackground">Change Chart Background</button>
</div>

The above chart has been rendered using the following steps:

  1. Include the necessary libraries and components using import. For example, vue-fusioncharts, fusioncharts, etc.

  2. Register vue-fusioncharts component.

  3. Store the chart configuration in a JSON object. In the JSON object:

    • Set the chart type as column2d. Find the complete list of chart types with their respective alias here.
    • Set the width and height of the chart in pixels.
    • Set the dataFormat as JSON.
    • Embed the json data as the value of dataSource.

  4. An event is triggered:

    • To update the chart caption, sub-capion alignment.
    • To update the backgroing color.
    • Reset all the chart data to it's initial version.

  5. Create a container to render buttons in the chart.

  6. Create a fusioncharts directive in a template.