Add Radial Gradient Ellipse with Aspose.Page

Introduction

Welcome to our step-by-step guide on adding an ellipse in Java XPS using Aspose.Page for Java. Aspose.Page is a powerful Java library that allows developers to work with XPS documents effortlessly. In this tutorial, we will walk you through the process of creating a radial gradient stroked ellipse and saving it as an XPS document.

Prerequisites

Before we begin, make sure you have the following prerequisites in place:

• Java Development Kit (JDK) installed on your machine.
• Aspose.Page for Java library downloaded. You can get it here.
• A code editor of your choice (Eclipse, IntelliJ, etc.) for writing and executing Java code.

Import Packages

Ensure you have the necessary packages imported in your Java project to use Aspose.Page. Add the following import statements to the top of your Java file:

import java.awt.geom.Point2D;
import java.util.LinkedList;
import java.util.List;
import com.aspose.xps.XpsCanvas;
import com.aspose.xps.XpsDocument;
import com.aspose.xps.XpsGradientBrush;
import com.aspose.xps.XpsGradientStop;
import com.aspose.xps.XpsPath;
import com.aspose.xps.XpsPathGeometry;
import com.aspose.xps.XpsSpreadMethod;

Step 1: Set Up Document Directory

Define the path to your document directory where the XPS document will be saved:

String dataDir = "Your Document Directory";

Step 2: Create XPS Document

Initialize a new XPS document using the following code:

XpsDocument doc = new XpsDocument();

Step 3: Define Radial Gradient Stops

Create a list of gradient stops for the radial gradient stroked ellipse:

List<XpsGradientStop> stops = new LinkedList<>();
stops.add(doc.createGradientStop(doc.createColor(0, 0, 255), 0f));
stops.add(doc.createGradientStop(doc.createColor(255, 0, 0), .25f));
stops.add(doc.createGradientStop(doc.createColor(0, 255, 0), .5f));
stops.add(doc.createGradientStop(doc.createColor(255, 255, 0), .75f));
stops.add(doc.createGradientStop(doc.createColor(255, 0, 0), 1f));

Step 4: Create Path Geometry

Define a radial gradient stroked ellipse using path geometry:

XpsPathGeometry pathGeometry = doc.createPathGeometry("M 20,250 A 100,50 0 1 1 220,250 100,50 0 1 1 20,250");

Step 5: Add Canvas and Path

Add a new canvas to the document and append the path with the defined geometry:

XpsCanvas canvas = doc.addCanvas();
XpsPath path = canvas.addPath(pathGeometry);

Step 6: Set Stroke and Gradient

Configure the stroke of the path with a radial gradient brush:

path.setStroke(doc.createRadialGradientBrush(new Point2D.Float(575f, 125f), new Point2D.Float(575f, 100f), 75f, 50f));
((XpsGradientBrush)path.getStroke()).setSpreadMethod(XpsSpreadMethod.Reflect);
((XpsGradientBrush)path.getStroke()).getGradientStops().addAll(stops);
stops.clear();

Step 7: Set Stroke Thickness

Specify the stroke thickness of the path:

path.setStrokeThickness(12f);

Step 8: Save the Document

Save the resulting XPS document:

doc.save(dataDir + "AddEllipse_out.xps");

Congratulations! You have successfully added a radial gradient stroked ellipse in Java XPS using Aspose.Page for Java.

Conclusion

In this tutorial, we explored the steps to create an XPS document with a visually appealing radial gradient stroked ellipse. Aspose.Page for Java simplifies XPS document manipulation, providing developers with a powerful toolset.

Frequently Asked Questions

Can I use Aspose.Page for Java with other Java libraries?

Yes, Aspose.Page for Java can be integrated with other Java libraries seamlessly.

Is Aspose.Page suitable for large-scale document processing?

Absolutely! Aspose.Page is designed to handle large-scale document processing efficiently.

Where can I find more tutorials and examples for Aspose.Page for Java?

Visit the Aspose.Page for Java documentation for comprehensive tutorials and examples.

How can I obtain a temporary license for Aspose.Page for Java?

You can get a temporary license here.

Are there community forums for Aspose.Page discussions?

Yes, join the Aspose.Page community forum to engage with other developers and get assistance.