Add Circle Object to PDF file

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: