Data Values

Data values are plot values, i.e. values of each data plot (line, column, bar, pie) displayed on the chart.

Configure Text Labels instead of Numeric Data Values

Instead of displaying numeric data values, you can use text labels to denote data values for each data item. Specify the text you want to display using the displayValue attribute under data within the particular data plot. Refer to the code below:

{
    "chart": {
        ...
    },
    "data": [
        {
            "label": "Q1",
            "value": "1950000"
        },
        {
            "label": "Q2",
            "value": "1450000"
        },
        {
            "label": "Q3",
            "value": "1730000"
        }, 
        {
            "label": "Q4",
            "value": "2120000",
            //Custom display string
            "displayValue": "Year's best"
        }
    ]
}COPY

The chart will look like as shown below:

Click here to edit the above chart.

Rotate Data Values

By default, the data values appear vertically as shown in the chart below:

Click here to edit the above chart.

You can opt to rotate the data values horizontally. Set the rotateValues to 0 under the chart object. The default value of this attribute is 1.

Refer to the code below:

{
    "chart": {
        "rotateValues": "0"
    }
}COPY

The chart will look like as shown below:

Click here to edit the above chart.

Control the visibility of data values

By default, all the data values are hidden for a chart. Setting the showValues attribute to 1 under the chart object displays all the data values in the chart. Given below is an image of a stacked chart, let's see how a stacked chart renders its data values for each data plot:

In the above image, as you can see the showValues attribute has been set to 1 and all the values are getting rendered on their respective data plots. The data values of the data plots with high numeric values are getting rendered properly, but the lower values' data plots are not looking nice to our eyes.

Starting v3.14.0, FusionCharts allows you to control the visibility of data values of the plots by specifying the minimum height of the columns. Data plots less than the minimum height specified will not show the data value text. This will help reduce clutter and improve the readability of the chart.

Refer to the code given below:

{
    "chart": {
        "minPlotHeightForValue": "15"
    }
}COPY

In the above code, the value of minPlotHeightForValue attribute is set to 20px. In this case, the data values of the data plots with a height of more than 20 pixels will be visible. FusionCharts will disable the data values of the plots with a height of less than 20 pixels.

Now, after applying the minPlotHeightForValue attribute, the above chart looks like as shown below:

Click here to edit the above chart.

In the above chart, we can see that the data values of the data plots with height less than 20 pixels have been disabled.

Bubble chart

A similar scenario can occur for a Bubble chart as well. We cannot calculate the height of a bubble chart so a new attribute minRadiusForValue has been introduced where u can specify the minimum radius of the bubble to display the data values of the plots.

Refer to the code below:

{
    "chart": {
        "minRadiusForValue": "15"
    }
}COPY

In the above code, the value of the minRadiusForValue attribute has been set to 10 pixels. In this case, the data values of the data plots with a radius of more than 10 pixels will be visible. FusionCharts will disable the data values of the plots with a radius of less than 10 pixels.

A bubble chart looks like as shown below:

Click here to edit the above chart.

Pie/Doughnut chart

Starting v3.14.0, FusionCharts Suite XT allows you to place the values inside the pie/doughnut slices of a pie and doughnut chart respectively. This helps to improve the overall look as it saves the canvas area outside the chart.

You can place the value inside the slices by setting the value of the newly added attribute valuePosition to inside. The default value of valuePosition attribute is outside.

valuePosition attribute can only be applied to 2D charts, i.e., pie2d and doughnut2d charts.

Refer to the code below:

{
    "chart": {
        "valuePosition": "inside"
    }
}COPY

valuePosition attribute can be applied both at chart and data level, i.e., you can set the position of the individual values of the slices.

Refer to the code below, showing the valuePosition attribute for a particular value:

{
    "chart": {
        ...
    },
    "data": [{
            "label": "Food",
            "value": "285040"
        },
        {
            "label": "Apparels",
            "value": "146330",
            "valuePosition": "inside"
        },
        {
            "label": "Electronics",
            "value": "105070"
        },
        {
            "label": "Household",
            "value": "49100"
        }
    ]
}COPY

A pie2d with valuePosition attribute set to inside (at chart level) is shown below:

Click here to edit the above chart.

In pie/doughnut chart, changing the position of the value can sometimes overlap each other due to the unavailability of space. For this scenario, a new attribute minAngleForValue has been introduced which sets the minimum angle of the pie below which the values will not be visible.

Refer to the code below:

{
    "chart": {
        "valuePosition": "inside",
        "minAngleForValue": "75"
    }
}COPY

This attribute will only work if the valuePosition attribute is set to inside.

A doughnut chart after applying valuePosition and minAngleForValue attribute look like:

Click here to edit the above chart.

Display Data Values outside Columns

By default, the data values are displayed within the column data plots. Set the placeValuesInside attribute to 1 and display the data values inside the column data plots. Refer to the code below:

{
    "chart": {
        "placeValuesInside": "1"
    }
}COPY

The chart will look like as shown below:

Click here to edit the above chart.

Show/Hide Data Values

By default, all the data values are hidden. Set the showValues attribute to 1 under the chart object to display all the data values. Refer to the code below:

Hide the data values by setting the following attribute to 0.

{
    "chart": {
        "showValues": "1"
    }
}COPY

The chart will look like as shown in the image below:

Click here to edit the above chart.

You can also opt to show/hide specific data values instead of hiding all of them. Set the showValue attribute to 1 under the data for that specific data value which you want to display. This setting overrides the showValues setting at the chart object level.

Refer to the code below:

{
    "chart": {
        "showValues": "0"
    },
    "data": [
        {
            "label": "Q1",
            "value": "1950000",
            "showValue": "1"
        }
    ]
}COPY

The chart looks like as shown below:

Click here to edit the above chart.

Skip Y-axis Values

If there is a large number of values to be displayed along the y-axis, you can opt to display every nth y-axis value skipping the rest.

To do so, specify the n-th level using the yAxisValuesStep attribute. For example, if you set the value as 2, the y-axis will display every 2nd value starting from the minimum value.

This attribute can also assume default values based on the space available in the chart to render y-axis values and can override the values provided to avoid overlapping of y-axis values.

Refer to the code below:

{
    "chart": {
        "yAxisValuesStep": "2"
    }
}COPY

The chart will look like as shown below:

Click here to edit the above chart.

Customize Data Value Properties

You can customize the data value properties like font, border, background, and alpha.

Font Properties

To customize the font properties following attributes are used:

• Set the font family for the data values using the valueFont attribute. E.g. - Arial

• Specify the hex code for the color of the data values using the valueFontColor attribute. E.g. - #00ffaa.

• Set the size of the font using the valueFontSize attribute.

• Set the valueFontBold attribute to 1 to and display the data values as bold.

• Set the valueFontItalic attribute to 1 to and display the data values as italics

• Set the transparency of the data values using the valueFontAlpha attribute.

Refer to the code below:

{
    "chart": {
        "placeValuesInside": "0",
        "rotateValues": "0",
        "valueFont": "Arial",
        "valueFontColor": "#5d62b5",
        "valueFontSize": "12",
        "valueFontBold": "1",
        "valueFontItalic": "0",
        "valueFontAlpha": "90"
    }
}COPY

The chart will look like as shown below:

Click here to edit the above chart.

Customize Data Value Border

To customize the border of the data values, the following attributes are used:

• Specify the hex code of the border color using the valueBorderColor attribute.

• Set the transparency of the border using the valueBorderAlpha attribute.

• Set the thickness of the border using the valueBorderThickness attribute.

• Set the radius if the border using the valueBorderRadius attribute.

• Set the valueBorderDashed attribute to 1 to display the border as dashed lines.

• Specify the gap between two dashed lines using the valueBorderDashGap attribute.

• Set the length of each dash using the valueBorderDashLen attribute.

• Set the transparency of the border on hover using the valueBorderHoverAlpha attribute.

Refer to the code below:

{
    "chart": {
        "valueBorderColor": "#666666",
        "valueBorderAlpha": "100",
        "valueBorderPadding": "5",
        "valueBorderRadius": "6",
        "valueBorderThickness": "0.5",
        "valueBorderDashed": "1",
        "valueBorderDashLen": "4",
        "valueBorderDashGap": "2"
    }
}COPY

The chart will look like as shown below:

Click here to edit the above chart.

Customize Data Value Background

To customize the background of the data values, the following attributes are used:

• Specify the hex code for the background color using the valueBgColor attribute.

• Set the transparency of the background using the valueBgAlpha attribute.

• Set the transparency of the background on hover using the valueBgHoverAlpha attribute.

Refer to the code below:

{
    "chart": {
        "valueBgColor": "#666666",
        "valueBgAlpha": "100",
    }
}COPY

The chart will look like as shown below:

Click here to edit the above chart.