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#1 Posted : Tuesday, April 7, 2020 4:13:20 PM(UTC)
Matthew Bresson

Groups: Registered, Tech Support, Administrators
Posts: 94

Was thanked: 3 time(s) in 3 post(s)

The AnnRenderingEngine class allows the ability to burn an annotations container (AnnContainer) to an image.

The below C# code will showcase how to burn annotations in an XML file to a given image using the RenderOnImage() method:


private static AnnDrawRenderingEngine _renderingEngine;
        static void Main(string[] args)
            string licenseFilePath = @"C:\LEADTOOLS 20\Support\Common\License\LEADTOOLS.lic";
            string developerKey = File.ReadAllText(@"C:\LEADTOOLS 20\Support\Common\License\LEADTOOLS.lic.key");
            RasterSupport.SetLicense(licenseFilePath, developerKey);

            _renderingEngine = new AnnDrawRenderingEngine();

        private static void BurnAnnotations()
            string inFile = @"PATH TO IMAGE";
            string annFile = @"PATH TO ANNOTATION XML";
            string outFile = @"PATH TO OUTPUT FILE";

            using (RasterCodecs codecs = new RasterCodecs())
                AnnCodecs annCodecs = new AnnCodecs();
                AnnContainer container = new AnnContainer();
                using (RasterImage image = codecs.Load(inFile))
                    container.Mapper.MapResolutions(image.XResolution, image.YResolution, image.XResolution, image.YResolution);
                    container.Size = container.Mapper.SizeToContainerCoordinates(image.ImageSize.ToLeadSizeD());

                    container = annCodecs.Load(annFile, 1);
                    using (var burnedImage = _renderingEngine.RenderOnImage(container, image))
                        codecs.Save(burnedImage, outFile, RasterImageFormat.Png, 0);

This is using the Leadtools.Annotations.NETStandard Nuget package:

Relevant LEADTOOLS v20 links:

File Attachment(s):
BurnAnnotationsDotNetCore.zip (2kb) downloaded 44 time(s).

Edited by moderator Tuesday, April 14, 2020 2:51:49 PM(UTC)  | Reason: Not specified

Matt Bresson
Developer Support Engineer
LEAD Technologies, Inc.

Try the latest version of LEADTOOLS for free for 60 days by downloading the evaluation: https://www.leadtools.com/downloads

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