Range Area Chart [Deprecated]

Range area charts are used to display the size difference between high and low values. It is also used to showcase trends in data over a period of time.

How to display pie chart using Bunifu Dataviz

Simply locate Bunifu Dataviz control in your toolbox and drag it to the location on your form where you would like to display it.

We will use button click event handler to display our chart called render_range_area

C#

private void render()
{
    var canvas = new Bunifu.Dataviz.WinForms.BunifuDatavizAdvanced.Canvas();
    var datapoint = new Bunifu.Dataviz.WinForms.BunifuDatavizAdvanced.DataPoint(Bunifu.Dataviz.WinForms.BunifuDatavizAdvanced._type.Bunifu_rangeArea);
    
    datapoint.addxy("new Date (2002,11,10)", new JArray(16.23, 17.99).ToString());
    datapoint.addxy("new Date (2002, 11, 9)", new JArray(15.95, 19.25).ToString());
    datapoint.addxy("new Date (2002, 11, 8)", new JArray(11.30, 16.88).ToString());
    datapoint.addxy("new Date (2002, 11, 7)", new JArray(13.29, 14.28).ToString());
    datapoint.addxy("new Date (2002, 11, 6)", new JArray(15.23, 16.45).ToString());
    datapoint.addxy("new Date (2002, 11, 5)", new JArray(13.70, 16.50).ToString());
    datapoint.addxy("new Date (2002, 11, 4)", new JArray(17.50, 19.00).ToString());
    datapoint.addxy("new Date (2002, 11, 3)", new JArray(19.50, 20.85).ToString());
    datapoint.addxy("new Date (2002, 11, 2)", new JArray(20.07, 21.44).ToString());
    datapoint.addxy("new Date (2002, 11, 1)", new JArray(25.00, 26.70).ToString());
    
    canvas.addData(datapoint);
    bunifuDataViz1.Render(canvas);
    
}

VB.NET

Private Sub render()
    
    Dim canvas = New Bunifu.Dataviz.WinForms.BunifuDatavizAdvanced.Canvas()
    Dim datapoint = New Bunifu.Dataviz.WinForms.BunifuDatavizAdvanced.DataPoint(Bunifu.Dataviz.WinForms.BunifuDatavizAdvanced._type.Bunifu_rangeArea)
    
    datapoint.addxy("new Date (2002,11,10)", New JArray(16.23, 17.99).ToString())
    datapoint.addxy("new Date (2002, 11, 9)", New JArray(15.95, 19.25).ToString())
    datapoint.addxy("new Date (2002, 11, 8)", New JArray(11.30, 16.88).ToString())
    datapoint.addxy("new Date (2002, 11, 7)", New JArray(13.29, 14.28).ToString())
    datapoint.addxy("new Date (2002, 11, 6)", New JArray(15.23, 16.45).ToString())
    datapoint.addxy("new Date (2002, 11, 5)", New JArray(13.70, 16.50).ToString())
    datapoint.addxy("new Date (2002, 11, 4)", New JArray(17.50, 19.00).ToString())
    datapoint.addxy("new Date (2002, 11, 3)", New JArray(19.50, 20.85).ToString())
    datapoint.addxy("new Date (2002, 11, 2)", New JArray(20.07, 21.44).ToString())
    datapoint.addxy("new Date (2002, 11, 1)", New JArray(25.00, 26.70).ToString())
    
    canvas.addData(datapoint)
    bunifuDataViz1.Render(canvas)
    
End Sub

In order to display range area chart we need the following controls:

• Bunifu Data Viz - This is the container for our chart

• Bunifu Canvas - This is the middle layer between the data viz (container) and the dataset

• Bunifu Data Point - This will contain the data that we want to represent as pairs of X and Y coordinates

Bunifu Range Area simply works by populating the Bunifu Datapoint control with “points”, described by the X coordinate (the first parameter of the addxy method) and an array of 2 coordinates, specifying the vertical limits of a line that needs to be checked by the spline. The curved shape is obtained automatically.

On running the code you should see something like this:

That's it!

We hope Bunifu Dataviz will help you bring out the best data visualization for your data in your application.

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