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 C++.

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

void ExampleCircle() {

    // Create Document instance
    String _dataDir("C:\\Samples\\");
    // Create Document instance
    auto document = MakeObject<Document>();

    // Add page to pages collection of PDF file
    auto page = document->get_Pages()->Add();

    // Create Drawing object with certain dimensions
    auto graph = MakeObject<Aspose::Pdf::Drawing::Graph>(400, 200);
    // Set border for Drawing object
    auto borderInfo = MakeObject<BorderInfo>(BorderSide::All, Color::get_Green());
    graph->set_Border(borderInfo);

    auto circle = MakeObject<Aspose::Pdf::Drawing::Circle>(100, 100, 40);

    circle->get_GraphInfo()->set_Color(Color::get_GreenYellow());
    graph->get_Shapes()->Add(circle);

    // Add Graph object to paragraphs collection of page
    page->get_Paragraphs()->Add(graph);

    // Save PDF file
    document->Save(_dataDir + u"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.

void ExampleFilledCircle() {
    // Create Document instance
    String _dataDir("C:\\Samples\\");
    // Create Document instance
    auto document = MakeObject<Document>();

    // Add page to pages collection of PDF file
    auto page = document->get_Pages()->Add();

    // Create Drawing object with certain dimensions
    auto graph = MakeObject<Aspose::Pdf::Drawing::Graph>(400, 200);
    
    // Set border for Drawing object
    auto borderInfo = MakeObject<BorderInfo>(BorderSide::All, Color::get_Green());
    graph->set_Border(borderInfo);

    auto circle = MakeObject<Aspose::Pdf::Drawing::Circle>(100, 100, 40);
    circle->get_GraphInfo()->set_Color(Color::get_GreenYellow());
    circle->get_GraphInfo()->set_FillColor(Color::get_Green());

    circle->set_Text(MakeObject<Aspose::Pdf::Text::TextFragment>(u"Circle"));

    graph->get_Shapes()->Add(circle);

    // Add Graph object to paragraphs collection of page
    page->get_Paragraphs()->Add(graph);

    // Save PDF file
    document->Save(_dataDir + u"DrawingCircle2_out.pdf");
}

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