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.

public static void Circle()
{
    // Create Document instance
    var document = new Document();

    // Add page to pages collection of PDF file
    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 BorderInfo(BorderSide.All, Color.Green);
    graph.Border = borderInfo;

    var circle = new Circle(100, 100, 40);

    circle.GraphInfo.Color = Color.GreenYellow;
    graph.Shapes.Add(circle);

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

    // Save PDF file
    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.

public static void CircleFilled()
{
    // Create Document instance
    var document = new Document();

    // Add page to pages collection of PDF file
    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 BorderInfo(BorderSide.All, Color.Green);
    graph.Border = borderInfo;

    var circle = new Circle(100, 100, 40);
    circle.GraphInfo.Color = Color.GreenYellow;
    circle.GraphInfo.FillColor = Color.Green;
    circle.Text = new TextFragment("Circle");

    graph.Shapes.Add(circle);

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

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

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