Visual C#.NET - Image Ellipse Annotation

C# Image Ellipse Annotation - Preparation

• Download .NET image controls: Firstly please download the product from the order email or the online free evaluation package for a test.
• Install .NET image controls: Then install the product by double clicking the exe file in the unzipped SDK.
• Activate .NET image controls: Now you can activate the license by entering your purchased serial number, or requesting an evaluation license first.

C# Image Ellipse Annotation - Start Now

• As for the minimum requirement, please verify that you have installed the Microsoft Visual Studio 2005 or later versions. Note that VS Express will also do.
• Now please start your MS Visual Studio and open your Visual C#.NET imaging project.
• Add the Yiigo.Image.Annotation.dll from the unzipped package to your C# image project.
• Enable the namespace in your project, and copy the following C# sample code to add an ellipse annotation on your image. We are taking a png image as an example.
• More image formats are supported like jpeg, gif, tiff, etc. You can also adjust annotation settings, such as flipping, rotating, resizing, text editing, etc.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using Yiigo.Image.Annotation;

EllipseAnnotation myAnnotation = new EllipseAnnotation();
myAnnotation.AnnotationData = "Ellipse Annotation";
myAnnotation.Fill = new AnnotationBrush(Color.Blue);
myAnnotation.Shadow = new AnnotationBrush(Color.Blue);
myAnnotation.Location = new PointF(100, 100);
myAnnotation.Size = new SizeF(160, 80);
myAnnotation.Opacity = 0.75;
annotationController1.CurrentLayer.Items.Add(myAnnotation);

C# Image Ellipse Annotation - Settings & Parameters

• Location stands for the center point of the ellipse annotation, measured by the horizontal and vertical coordinates.
• Size stands for the width and height of the ellipse annotation, measured in pixel.
• With Color parameter, you can customize the color of the outline and ellipse background color.
• Opacity is the quality of the ellipse being opaque. Default is 1. Valid from 0 to 1.

C# Image Ellipse Annotation - Sample Image

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