Active Contributor
Posts: 47
Registered: ‎03-16-2012
Message 1 of 2 (192 Views)

Reg: How to get the unreferenced image in dwg.

192 Views, 1 Replies
01-08-2013 07:06 AM

How to get the unreferenced image in dwg?using DB.ReadDWGFile Method .Do any one have sample ?? :smileyindifferent:

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*Expert Elite*
Posts: 2,128
Registered: ‎04-29-2006
Message 2 of 2 (167 Views)

Re : Reg: How to get the unreferenced image in dwg.

01-08-2013 09:54 AM in reply to: varadan01



You can get the Raster definitions from the ACAD_IMAGE_DICT dictionary and use the Database.Purge() method to get the unreferenced ones.


Here's a little sample:


        public void Test()
            Document doc = AcAp.DocumentManager.MdiActiveDocument;
            Database db = doc.Database;
            Editor ed = doc.Editor;

            using (Database sideDb = new Database())
                sideDb.ReadDwgFile(@"C:\Temp\ImagesTest.dwg", System.IO.FileShare.ReadWrite, false, "");
                using (Transaction tr = sideDb.TransactionManager.StartTransaction())
                    DBDictionary NOD =
                        (DBDictionary)tr.GetObject(sideDb.NamedObjectsDictionaryId, OpenMode.ForRead);
                    if (NOD.Contains("ACAD_IMAGE_DICT"))
                        DBDictionary imgDict =
                            (DBDictionary)tr.GetObject((ObjectId)NOD["ACAD_IMAGE_DICT"], OpenMode.ForRead);
                        ObjectIdCollection ids = new ObjectIdCollection();
                        foreach (DBDictionaryEntry entry in imgDict)
                        foreach (DBDictionaryEntry entry in imgDict)
                            if (ids.Contains(entry.Value))
                                ed.WriteMessage("\n" + entry.Key);


Gilles Chanteau
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