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[Critical] Some DXF files hangs the library (.NET ASPOSE.CAD 20.7.0-20.9.1)

Issue description:
For some DXF files the library .NET ASPOSE.CAD (version 20.7.0-20.9.1) hangs forever (or at least for hours) while consuming CPU.
This issue was introduced with version 20.7.0 (20.6.0 doesn’t display this issue) and is present in the latest version 20.9.1.
This problem is critical because it has affected negatively the servers’ perfomance in which ASPOSE.CAD was utilized to convert DXF files to images when there were DXF files that trigger the issue.
I had to downgrade the library referenced in our project to version 20.6.0 as a stopgap solution.

Versions which present this issue:
.NET ASPOSE.CAD 20.7.0 - 20.9.1

Code snippet for testing:
using (Aspose.CAD.FileFormats.Cad.CadImage cadImage = (Aspose.CAD.FileFormats.Cad.CadImage)Aspose.CAD.Image.Load(filename))
Aspose.CAD.Rectangle rect = cadImage.Bounds;
var options = new Aspose.CAD.ImageOptions.JpegOptions();
Aspose.CAD.ImageOptions.CadRasterizationOptions rasterizationOptions = new CadRasterizationOptions()
BackgroundColor = Aspose.CAD.Color.White,
PageHeight = 1000,
PageWidth = 1000,
DrawType = Aspose.CAD.FileFormats.Cad.CadDrawTypeMode.UseObjectColor
options.VectorRasterizationOptions = rasterizationOptions;

// save DXF as a JPEG 
cadImage.Save(Path.GetDirectoryName(filename) + "\\" + Path.GetFileNameWithoutExtension(filename) + ".jpg", options);


File DXF for testing: see attachment (146.8 KB)


I have opened a ticket with ID CADNET-1220 in our issue tracking system to further investigate and resolve the issue. This thread has been linked with the issue so that you may be notified once the issue will be fixed.

Any update about this issue?


The issue has been marked for review in upcoming Aspose.CAD for .NE 20.12. We request for your patience and will share the good news with you as soon as the issue will be addressed.