Add Circle Object to PDF file

The following code snippet also work with Aspose.PDF.Drawing library.

Add Circle object

Like bar graphs, circle graphs can be used to display data in a number of separate categories. Unlike bar graphs, however, circle graphs can be used only when you have data for all the categories that make up the whole. So let’s take a look at adding a Circle object with Aspose.PDF for .NET.

Follow the steps below:

1. Create Document instance.
2. Create Drawing object with certain dimensions.
3. Set Border for Drawing object.
4. Add Graph object to paragraphs collection of page.
5. Save our PDF file.

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void Circle()
{
    // The path to the document directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Images();

    // Create PDF document
    using (var document = new Aspose.Pdf.Document())
    {
        // Add page
        var page = document.Pages.Add();

        // Create Drawing object with certain dimensions
        var graph = new Aspose.Pdf.Drawing.Graph(400, 200);

        // Set border for Drawing object
        var borderInfo = new Aspose.Pdf.BorderInfo(Aspose.Pdf.BorderSide.All, Aspose.Pdf.Color.Green);
        graph.Border = borderInfo;

        // Create a circle with the specified coordinates and radius
        var circle = new Aspose.Pdf.Drawing.Circle(100, 100, 40);

        // Set the circle's color
        circle.GraphInfo.Color = Aspose.Pdf.Color.GreenYellow;

        // Add the circle to the graph shapes
        graph.Shapes.Add(circle);

        // Add Graph object to paragraphs collection of page
        page.Paragraphs.Add(graph);

        // Save PDF document
        document.Save(dataDir + "DrawingCircle1_out.pdf");
    }
}

Our drawn circle will look like this:

Create Filled Circle Object

This example shows how to add a Circle object that is filled with color.

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void CircleFilled()
{
    // The path to the document directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Images();

    // Create PDF document
    using (var document = new Aspose.Pdf.Document())
    {
        // Add page
        var page = document.Pages.Add();

        // Create Drawing object with certain dimensions
        var graph = new Aspose.Pdf.Drawing.Graph(400, 200);

        // Set border for Drawing object
        var borderInfo = new Aspose.Pdf.BorderInfo(Aspose.Pdf.BorderSide.All, Aspose.Pdf.Color.Green);
        graph.Border = borderInfo;

        // Create a filled circle
        var circle = new Aspose.Pdf.Drawing.Circle(100, 100, 40)
        {
            GraphInfo = 
            { 
                Color = Aspose.Pdf.Color.GreenYellow, 
                FillColor = Aspose.Pdf.Color.Green 
            },
            Text = new Aspose.Pdf.Text.TextFragment("Circle")
        };

        // Add the circle to the graph shapes
        graph.Shapes.Add(circle);

        // Add Graph object to paragraphs collection of page
        page.Paragraphs.Add(graph);

        // Save PDF document
        document.Save(dataDir + "DrawingCircle2_out.pdf");
    }
}

Let’s see the result of adding a filled Circle: