示例#1
0
        /// <summary>
        ///     Parses the shell information for a 3DReferenceRep out of the xml document into the internal representation.
        ///     the methods opens external 3DReferenceRep files automatically.
        /// </summary>
        /// <param name="threeDReferenceRepXmlElement">The 3DReferenceRep xml representation with all attributes and sup nodes</param>
        /// <param name="nameOfExternalRepFileDiscription">
        ///     name of the external 3DReferenceRep xml file, is empty if the
        ///     representation is in the same file.
        /// </param>
        /// <param name="archive">The unziped file archive of the 3dxml model</param>
        /// <returns>A Shell of a Mesh, which is holding the trinagular information.</returns>
        private static Shell GetShell(XElement threeDReferenceRepXmlElement, string nameOfExternalRepFileDiscription,
                                      IThreeDXMLArchive archive)
        {
            XDocument        xmlReferenceRep;
            IList <Triangle> triangles = new List <Triangle>();

            if (nameOfExternalRepFileDiscription != null && nameOfExternalRepFileDiscription.Any())
            {
                xmlReferenceRep = archive.GetNextDocument(ParseUtility.CleanUpFileName(nameOfExternalRepFileDiscription));
            }
            else
            {
                xmlReferenceRep = threeDReferenceRepXmlElement.Document;
            }
            var bagReps = GetBagRepXmlElements(xmlReferenceRep);

            foreach (var bagRep in bagReps)
            {
                IList <XElement> faces =
                    bagRep.Descendants("{http://www.3ds.com/xsd/3DXML}Faces")
                    .Where(x => x.Parent.Name.LocalName.ToLower() != "polygonallod")
                    .ToList();
                var verticies = GetVerticesFromXml(bagRep);

                foreach (var face in faces.Elements("{http://www.3ds.com/xsd/3DXML}Face"))
                {
                    triangles = triangles.Concat(GetTrianglesFromXml(face, verticies)).ToList();
                    triangles = triangles.Concat(GetFansFromXml(face, verticies)).ToList();
                    triangles = triangles.Concat(GetStripsFromXml(face, verticies)).ToList();
                }
            }

            return(new Shell(triangles));
        }
示例#2
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        /// <summary>
        ///     The main entrance point for parsing a 3Dreferencerep. The current supported representation is "Tessellated".
        /// </summary>
        /// <param name="xml">the xml manifest of the 3dxml model</param>
        /// <param name="archive">The unziped file archive of the 3dxml model</param>
        /// <throw name="FormatNotSupportedException">
        ///     If the 3DReferenceRep is in a not supported representation this Eception will
        ///     be thrown.
        /// </throw>
        /// <throw name="ArgumentException">
        ///     If the given XDocument does not hold any information about 3DReferenceReps this
        ///     exception will be thrown.
        /// </throw>
        /// <returns>
        ///     A list of ReferenceRep objects, with shell informaton, Id, Referencetype and other fields: Name, Version, Usage.
        ///     Note that the other fields can be empty or null.
        /// </returns>
        public static IList <ReferenceRep> Parse3DRepresentation(XDocument xml, IThreeDXMLArchive archive)
        {
            IList <ReferenceRep> threeDRepresentations = new List <ReferenceRep>();

            var xmlReferenceReps = xml.Root.Descendants("{http://www.3ds.com/xsd/3DXML}ReferenceRep");

            if (
                xmlReferenceReps.All(
                    x => x.Attribute("format").Value.ToLower() == Supported3DRepFormats.Tessellated.ToString().ToLower()))
            {
                foreach (var rep in xmlReferenceReps)
                {
                    threeDRepresentations.Add(Parse3DTessellatedRepresentation(rep, archive));
                }
            }
            else
            {
                var format = xmlReferenceReps.Descendants("ReferenceRep").First().Attribute("format").Value;
                if (format.Length <= 0)
                {
                    throw new ArgumentException(
                              "The given file does not hold any information about Reference3DReps, please make sure the file archive is valid.");
                }

                throw new FormatNotSupportedException(string.Format(
                                                          @"The importer cant understand the given 3DReferenceRep format {0}.
                                                    Try using a representation with a supported format or contact the developers."
                                                          , format));
            }

            return(threeDRepresentations);
        }
示例#3
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        /// <summary>
        /// Reads the manifest(the entry point for the 3Dxml parsing) and datamines where to start.
        /// </summary>
        /// <param name="archive">The unziped file archive of the 3dxml model</param>
        /// <returns></returns>
        public static XDocument ReadManifest(IThreeDXMLArchive archiv)
        {
            var manifest = archiv.GetManifest();
            //check if the manifest contains the asset information, if the root element is not the manifest then load and return it.
            var rootElement = manifest.Root.Element("Root");

            if (rootElement != null && !rootElement.IsEmpty)
            {
                manifest = archiv.GetNextDocument(CleanUpFileName(rootElement.Value));
            }

            return(manifest);
        }
示例#4
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        /// <summary>
        ///     This methods is the main entry point for 3DReferenceReps in the Tessellated format.
        ///     If the Rep has LOD information the most accurate mesh will be parsed the rest will be droped.
        /// </summary>
        /// <param name="threeDReferenceRepXmlElement">The 3DReferenceRep xml representation with all attributes and sup nodes</param>
        /// <param name="archive">The unziped file archive of the 3dxml model</param>
        /// <returns>
        ///     A ReferenceRep objects, with shell informaton, Id, Referencetype and other fields: Name, Version, Usage.
        ///     Note that the other fields can be empty or null.
        /// </returns>
        private static ReferenceRep Parse3DTessellatedRepresentation(XElement threeDReferenceRepXmlElement,
                                                                     IThreeDXMLArchive archive)
        {
            var nameOfExternalRepFileDiscription = "";
            var referenceRep = new ReferenceRep();

            foreach (var attribut in threeDReferenceRepXmlElement.Attributes())
            {
                switch (attribut.Name.LocalName.ToLower())
                {
                case "id":
                    referenceRep.Id = Convert.ToInt32(attribut.Value);
                    break;

                case "name":
                    referenceRep.Name = attribut.Value;
                    break;

                case "type":
                    referenceRep.ReferenceType = attribut.Value;
                    break;

                case "version":
                    referenceRep.Version = attribut.Value;
                    break;

                case "associatedfile":
                    nameOfExternalRepFileDiscription = attribut.Value;
                    break;

                default:
                    break;
                }
            }


            referenceRep.Shell = GetShell(threeDReferenceRepXmlElement, nameOfExternalRepFileDiscription, archive);

            return(referenceRep);
        }
 private XDocument ReadManifest(IThreeDXMLArchive fileArchive)
 {
     return ParseUtility.ReadManifest(fileArchive);
 }
 private IList<ReferenceRep> ParseAssetRepresentation(XDocument xml, IThreeDXMLArchive archive)
 {
     return  ParseReferenceRepUsecase.Parse3DRepresentation(xml, archive);
 }
示例#7
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 private XDocument ReadManifest(IThreeDXMLArchive fileArchive)
 {
     return(ParseUtility.ReadManifest(fileArchive));
 }
示例#8
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 private IList <ReferenceRep> ParseAssetRepresentation(XDocument xml, IThreeDXMLArchive archive)
 {
     return(ParseReferenceRepUsecase.Parse3DRepresentation(xml, archive));
 }