3Mf-Export: add prototypes for relations and rest of 3MF-document.

code/3DSHelper.h

@@ -44,7 +44,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef AI_3DSFILEHELPER_H_INC
 #define AI_3DSFILEHELPER_H_INC
 
-
 #include "SpatialSort.h"
 #include "SmoothingGroups.h"
 #include "StringUtils.h"
@@ -64,16 +63,19 @@ namespace D3DS  {
 /** Discreet3DS class: Helper class for loading 3ds files. Defines chunks
 *  and data structures.
 */
-class Discreet3DS
-{
+class Discreet3DS {
 private:
-    inline Discreet3DS() {}
+    Discreet3DS() {
+        // empty
+    }
 
-public:
+    ~Discreet3DS() {
+        // empty
+    }
 
+public:
     //! data structure for a single chunk in a .3ds file
-    struct Chunk
-    {
+    struct Chunk {
         uint16_t    Flag;
         uint32_t    Size;
     } PACK_STRUCT;

code/D3MFExporter.cpp

@@ -50,7 +50,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "3MFXmlTags.h"
 
 namespace Assimp {
-namespace D3MF {
 
 void ExportScene3MF( const char* pFile, IOSystem* pIOSystem, const aiScene* pScene, const ExportProperties* /*pProperties*/ ) {
     std::shared_ptr<IOStream> outfile( pIOSystem->Open( pFile, "wb" ) );
@@ -58,12 +57,16 @@ void ExportScene3MF( const char* pFile, IOSystem* pIOSystem, const aiScene* pSce
         throw DeadlyExportError( "Could not open output .3ds file: " + std::string( pFile ) );
     }
 
-    D3MFExporter myExporter( outfile, pScene );
+    D3MF::D3MFExporter myExporter( outfile, pScene );
     if ( myExporter.validate() ) {
         bool ok = myExporter.exportAsset();
     }
 }
 
+namespace D3MF {
+
+#ifndef ASSIMP_BUILD_NO3MF_EXPORTER
+
 D3MFExporter::D3MFExporter( std::shared_ptr<IOStream> outfile, const aiScene* pScene )
 : mStream( outfile.get() )
 , mScene( pScene )
@@ -101,6 +104,8 @@ bool D3MFExporter::exportAsset() {
 
     mOutput << "</" << XmlTag::model << ">\n";
 
+    std::string exportedFile = mOutput.str();
+
     return true;
 }
 
@@ -179,5 +184,7 @@ void D3MFExporter::writeBuild() {
     mOutput << "</" << XmlTag::build << ">\n";
 }
 
+#endif // ASSIMP_BUILD_NO3MF_EXPORTER
+
 }
 } // Namespace Assimp

code/D3MFExporter.h

@@ -56,6 +56,8 @@ class IOStream;
 
 namespace D3MF {
 
+#ifndef ASSIMP_BUILD_NO3MF_EXPORTER
+
 class D3MFExporter {
 public:
     D3MFExporter( std::shared_ptr<IOStream> outfile, const aiScene* pScene );
@@ -78,6 +80,8 @@ private:
     std::vector<unsigned int> mBuildItems;
 };
 
+#endif // ASSIMP_BUILD_NO3MF_EXPORTER
+
 }
 } // Namespace Assimp
 

code/D3MFOpcPackage.cpp

@@ -107,7 +107,6 @@ voidpf IOSystem2Unzip::open(voidpf opaque, const char* filename, int mode) {
         }
     }
 
-
     return (voidpf) io_system->Open(filename, mode_fopen);
 }
 
@@ -177,44 +176,32 @@ zlib_filefunc_def IOSystem2Unzip::get(IOSystem* pIOHandler) {
     return mapping;
 }
 
-
-class ZipFile : public IOStream
-{
+class ZipFile : public IOStream {
     friend class D3MFZipArchive;
 
 public:
     explicit ZipFile(size_t size);
-
-    ~ZipFile();
-
+    virtual ~ZipFile();
     size_t Read(void* pvBuffer, size_t pSize, size_t pCount );
-
     size_t Write(const void* /*pvBuffer*/, size_t /*pSize*/, size_t /*pCount*/);
-
     size_t FileSize() const;
-
     aiReturn Seek(size_t /*pOffset*/, aiOrigin /*pOrigin*/);
-
     size_t Tell() const;
-
     void Flush();
 
 private:
-
-    void* m_Buffer;
-
+    void *m_Buffer;
     size_t m_Size;
-
 };
 
 ZipFile::ZipFile(size_t size) : m_Size(size) {
     ai_assert(m_Size != 0);
 
-    m_Buffer = malloc(m_Size);
+    m_Buffer = ::malloc(m_Size);
 }
 
 ZipFile::~ZipFile() {
-    free(m_Buffer);
+    ::free(m_Buffer);
     m_Buffer = NULL;
 }
 
@@ -227,8 +214,12 @@ size_t ZipFile::Read(void* pvBuffer, size_t pSize, size_t pCount) {
     return size;
 }
 
-size_t ZipFile::Write(const void* /*pvBuffer*/, size_t /*pSize*/, size_t /*pCount*/) {
-    return 0;
+size_t ZipFile::Write(const void* pvBuffer, size_t size, size_t pCount ) {
+    const size_t size_to_write( size * pCount );
+    if ( 0 == size_to_write ) {
+        return 0U;
+    }
+    return 0U;
 }
 
 size_t ZipFile::FileSize() const {
@@ -247,7 +238,6 @@ void ZipFile::Flush() {
     // empty
 }
 
-
 class D3MFZipArchive : public IOSystem {
 public:
     static const unsigned int FileNameSize = 256;
@@ -272,14 +262,12 @@ private:
 // ------------------------------------------------------------------------------------------------
 //  Constructor.
 D3MFZipArchive::D3MFZipArchive(IOSystem* pIOHandler, const std::string& rFile)
-    : m_ZipFileHandle(NULL), m_ArchiveMap()
-{
-    if (! rFile.empty())
-    {                
+: m_ZipFileHandle(NULL)
+, m_ArchiveMap() {
+    if (! rFile.empty()) {                
         zlib_filefunc_def mapping = IOSystem2Unzip::get(pIOHandler);            
 
         m_ZipFileHandle = unzOpen2(rFile.c_str(), &mapping);
-
         if(m_ZipFileHandle != NULL) {            
             mapArchive();
         }
@@ -409,8 +397,7 @@ bool D3MFZipArchive::mapArchive() {
 
 // ------------------------------------------------------------------------------------------------
 
-struct OpcPackageRelationship
-{
+struct OpcPackageRelationship {
     std::string id;
     std::string type;
     std::string target;
@@ -418,15 +405,10 @@ struct OpcPackageRelationship
 
 typedef std::shared_ptr<OpcPackageRelationship> OpcPackageRelationshipPtr;
 
-class OpcPackageRelationshipReader
-{
+class OpcPackageRelationshipReader {
 public:
-
-    OpcPackageRelationshipReader(XmlReader* xmlReader)
-    {        
-
-        while(xmlReader->read())
-        {
+    OpcPackageRelationshipReader(XmlReader* xmlReader) {        
+        while(xmlReader->read()) {
             if(xmlReader->getNodeType() == irr::io::EXN_ELEMENT &&
                xmlReader->getNodeName() == XmlTag::RELS_RELATIONSHIP_CONTAINER)
             {

code/Exporter.cpp

@@ -95,29 +95,30 @@ void ExportSceneGLTF2(const char*, IOSystem*, const aiScene*, const ExportProper
 void ExportSceneAssbin(const char*, IOSystem*, const aiScene*, const ExportProperties*);
 void ExportSceneAssxml(const char*, IOSystem*, const aiScene*, const ExportProperties*);
 void ExportSceneX3D(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+void ExportScene3MF( const char*, IOSystem*, const aiScene*, const ExportProperties* );
 
 // ------------------------------------------------------------------------------------------------
 // global array of all export formats which Assimp supports in its current build
 Exporter::ExportFormatEntry gExporters[] =
 {
 #ifndef ASSIMP_BUILD_NO_COLLADA_EXPORTER
-    Exporter::ExportFormatEntry( "collada", "COLLADA - Digital Asset Exchange Schema", "dae", &ExportSceneCollada),
+    Exporter::ExportFormatEntry( "collada", "COLLADA - Digital Asset Exchange Schema", "dae", &ExportSceneCollada ),
 #endif
 
 #ifndef ASSIMP_BUILD_NO_X_EXPORTER
     Exporter::ExportFormatEntry( "x", "X Files", "x", &ExportSceneXFile,
-        aiProcess_MakeLeftHanded | aiProcess_FlipWindingOrder | aiProcess_FlipUVs),
+        aiProcess_MakeLeftHanded | aiProcess_FlipWindingOrder | aiProcess_FlipUVs ),
 #endif
 
 #ifndef ASSIMP_BUILD_NO_STEP_EXPORTER
-    Exporter::ExportFormatEntry( "stp", "Step Files", "stp", &ExportSceneStep, 0),
+    Exporter::ExportFormatEntry( "stp", "Step Files", "stp", &ExportSceneStep, 0 ),
 #endif
 
 #ifndef ASSIMP_BUILD_NO_OBJ_EXPORTER
     Exporter::ExportFormatEntry( "obj", "Wavefront OBJ format", "obj", &ExportSceneObj,
-        aiProcess_GenSmoothNormals /*| aiProcess_PreTransformVertices */),
+        aiProcess_GenSmoothNormals /*| aiProcess_PreTransformVertices */ ),
     Exporter::ExportFormatEntry( "objnomtl", "Wavefront OBJ format without material file", "obj", &ExportSceneObjNoMtl,
-        aiProcess_GenSmoothNormals /*| aiProcess_PreTransformVertices */),
+        aiProcess_GenSmoothNormals /*| aiProcess_PreTransformVertices */ ),
 #endif
 
 #ifndef ASSIMP_BUILD_NO_STL_EXPORTER
@@ -140,28 +141,32 @@ Exporter::ExportFormatEntry gExporters[] =
 
 #ifndef ASSIMP_BUILD_NO_3DS_EXPORTER
     Exporter::ExportFormatEntry( "3ds", "Autodesk 3DS (legacy)", "3ds" , &ExportScene3DS,
-        aiProcess_Triangulate | aiProcess_SortByPType | aiProcess_JoinIdenticalVertices),
+        aiProcess_Triangulate | aiProcess_SortByPType | aiProcess_JoinIdenticalVertices ),
 #endif
 
 #ifndef ASSIMP_BUILD_NO_GLTF_EXPORTER
     Exporter::ExportFormatEntry( "gltf", "GL Transmission Format", "gltf", &ExportSceneGLTF,
-        aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType),
+        aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType ),
     Exporter::ExportFormatEntry( "glb", "GL Transmission Format (binary)", "glb", &ExportSceneGLB,
-        aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType),
+        aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType ),
     Exporter::ExportFormatEntry( "gltf2", "GL Transmission Format v. 2", "gltf2", &ExportSceneGLTF2,
-        aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType),
+        aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType ),
 #endif
 
 #ifndef ASSIMP_BUILD_NO_ASSBIN_EXPORTER
-    Exporter::ExportFormatEntry( "assbin", "Assimp Binary", "assbin" , &ExportSceneAssbin, 0),
+    Exporter::ExportFormatEntry( "assbin", "Assimp Binary", "assbin" , &ExportSceneAssbin, 0 ),
 #endif
 
 #ifndef ASSIMP_BUILD_NO_ASSXML_EXPORTER
-    Exporter::ExportFormatEntry( "assxml", "Assxml Document", "assxml" , &ExportSceneAssxml, 0),
+    Exporter::ExportFormatEntry( "assxml", "Assxml Document", "assxml" , &ExportSceneAssxml, 0 ),
 #endif
 
 #ifndef ASSIMP_BUILD_NO_X3D_EXPORTER
-	Exporter::ExportFormatEntry( "x3d", "Extensible 3D", "x3d" , &ExportSceneX3D, 0),
+    Exporter::ExportFormatEntry( "x3d", "Extensible 3D", "x3d" , &ExportSceneX3D, 0 ),
+#endif
+
+#ifndef ASSIMP_BUILD_NO3MF_EXPORTER
+    Exporter::ExportFormatEntry( "3mf", "The 3MF-File-Format", "3mf", &ExportScene3MF, 0 )
 #endif
 };
 

test/unit/utD3MFImportExport.cpp

@@ -43,8 +43,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "AbstractImportExportBase.h"
 
 #include <assimp/Importer.hpp>
+#include <assimp/Exporter.hpp>
 #include <assimp/scene.h>
 
+#include "D3MFExporter.h"
+
 class utD3MFImporterExporter : public AbstractImportExportBase {
 public:
     virtual bool importerTest() {
@@ -58,8 +61,21 @@ public:
         
         return ( nullptr != scene );
     }
+
+    virtual bool exporterTest() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile( ASSIMP_TEST_MODELS_DIR "/3MF/box.3mf", 0 );
+
+        Assimp::Exporter exporter;
+        return nullptr != exporter.ExportToBlob( scene, "3mf", 0 );
+    }
+
 };
 
 TEST_F(utD3MFImporterExporter, import3MFFromFileTest) {
     EXPECT_TRUE(importerTest());
 }
+
+TEST_F( utD3MFImporterExporter, export3MFtoMemTest ) {
+    EXPECT_TRUE( exporterTest() );
+}