C++ Registry::ObjCreate方法代码示例

int main() {

    // This has to be done before anything else.  This initializes
    // all of the registry information for the schema you are using.
    // The SchemaInit() function is generated by exp2cxx... see
    // extern statement above.

    Registry * registry = new Registry( SchemaInit );

    // The nifty thing about the Registry is that it basically keeps a list
    // of everything in your schema.  What this means is that we can go
    // through the Registry and instantiate, say, one of everything, without
    // knowing at coding-time what entities there are to instantiate.  So,
    // this test could be linked with other class libraries produced from
    // other schema, rather than the example, and run happily.

    InstMgr instance_list;

    // Here's what's going to happen below: we're going to figure out
    // how many different entities there are, instantiate one of each and
    // keep an array of pointers to each.  We'll stick some random data in
    // them as we go.  When we're done, we'll print out everything by walking
    // the array, and then write out the STEPfile information to the screen.

    // Figure outhow many entities there are, then allocate an array
    // to store a pointer to one of each.

    int num_ents = registry->GetEntityCnt();
    STEPentity ** SEarray = new STEPentity*[num_ents];

    // "Reset" the Schema and Entity hash tables... this sets things up
    // so we can walk through the table using registry->NextEntity()

    registry->ResetSchemas();
    registry->ResetEntities();

    // Print out what schema we're running through.

    const SchemaDescriptor * schema = registry->NextSchema();
    cout << "Entities in schema " << schema->Name() << ":\n";

    // "Loop" through the schema, building one of each entity type.

    const EntityDescriptor * ent;  // needs to be declared const...
    for ( int i = 0; i < num_ents; i++ ) {
        ent = registry->NextEntity();

        // Build object, using its name, through the registry
        SEarray[i] = registry->ObjCreate( ent->Name() );

        // Add each realized entity to the instance list
        instance_list.Append( SEarray[i], completeSE );

        // Put some data into each instance
        PrintEntity( SEarray[i] );
    }

    // Print out all entities

    SEarrIterator SEitr( ( const STEPentity ** ) SEarray, num_ents );
    exit( 0 );
}

int main( void ) {
    // The registry contains information about types present in the current schema; SchemaInit is a function in the schema-specific SDAI library
    Registry * registry = new Registry( SchemaInit );

    // The InstMgr holds instances that have been created or that have been loaded from a file
    InstMgr * instance_list = new InstMgr();

    // Increment FileId so entities start at #1 instead of #0.
    instance_list->NextFileId();

    // STEPfile takes care of reading and writing Part 21 files
    STEPfile * sfile = new STEPfile( *registry, *instance_list, "", false );

    registry->ResetSchemas();
    registry->ResetEntities();

    // Build file header
    InstMgr * header_instances = sfile->HeaderInstances();

    SdaiFile_name * fn = ( SdaiFile_name * ) sfile->HeaderDefaultFileName();
    header_instances->Append( ( SDAI_Application_instance * ) fn, completeSE );
    fn->name_( "'outfile.stp'" );
    fn->time_stamp_( "''" );
    fn->author_()->AddNode( new StringNode( "''" ) );
    fn->organization_()->AddNode( new StringNode( "''" ) );
    fn->preprocessor_version_( "''" );
    fn->originating_system_( "''" );
    fn->authorization_( "''" );

    SdaiFile_description * fd = ( SdaiFile_description * ) sfile->HeaderDefaultFileDescription();
    header_instances->Append( ( SDAI_Application_instance * ) fd, completeSE );
    fd->description_()->AddNode( new StringNode( "''" ) );
    fd->implementation_level_( "'1'" );

    SdaiFile_schema * fs = ( SdaiFile_schema * ) sfile->HeaderDefaultFileSchema();
    header_instances->Append( ( SDAI_Application_instance * ) fs, completeSE );
    fs->schema_identifiers_()->AddNode( new StringNode( "'CONFIG_CONTROL_DESIGN'" ) );


    // Build file data.  The entities have been created and added in order such that no entity
    // references a later entity.  This is not required, but has been done to give a logical
    // flow to the source and the resulting STEP file.

    // Stand-in date and time.
    SdaiDate_and_time * date_time = DateTime( registry, instance_list );

    // Global units and tolerance.
    STEPcomplex * context = Geometric_Context( registry, instance_list, MM, DEG, "0.0001" );

    // Primary coordinate system.
    SdaiAxis2_placement_3d * orig_transform = DefaultAxis( registry, instance_list );

    // Basic context through product and shape representation
    SdaiApplication_context * app_context = ( SdaiApplication_context * ) registry->ObjCreate( "APPLICATION_CONTEXT" );
    instance_list->Append( ( SDAI_Application_instance * ) app_context, completeSE );
    app_context->application_( "'configuration controlled 3d designs of mechanical parts and assemblies'" );

    SdaiMechanical_context * mech_context = ( SdaiMechanical_context * ) registry->ObjCreate( "MECHANICAL_CONTEXT" );
    instance_list->Append( ( SDAI_Application_instance * ) mech_context, completeSE );
    mech_context->name_( "''" );
    mech_context->discipline_type_( "'mechanical'" );
    mech_context->frame_of_reference_( app_context );

    SdaiApplication_protocol_definition * app_protocol = ( SdaiApplication_protocol_definition * ) registry->ObjCreate( "APPLICATION_PROTOCOL_DEFINITION" );
    instance_list->Append( ( SDAI_Application_instance * ) app_protocol, completeSE );
    app_protocol->status_( "'international standard'" );
    app_protocol->application_protocol_year_( 1994 );
    app_protocol->application_interpreted_model_schema_name_( "'config_control_design'" );
    app_protocol->application_( app_context );

    SdaiDesign_context * design_context = ( SdaiDesign_context * ) registry->ObjCreate( "DESIGN_CONTEXT" );
    instance_list->Append( ( SDAI_Application_instance * ) design_context, completeSE );
    design_context->name_( "''" );
    design_context->life_cycle_stage_( "'design'" );
    design_context->frame_of_reference_( app_context );

    SdaiProduct * prod = ( SdaiProduct * ) registry->ObjCreate( "PRODUCT" );
    instance_list->Append( ( SDAI_Application_instance * ) prod, completeSE );
    prod->id_( "''" );
    prod->name_( "'prodname'" );
    prod->description_( "''" );
    prod->frame_of_reference_()->AddNode( new EntityNode( ( SDAI_Application_instance * ) mech_context ) );

    SdaiProduct_related_product_category * prodcat = ( SdaiProduct_related_product_category * ) registry->ObjCreate( "PRODUCT_RELATED_PRODUCT_CATEGORY" );
    instance_list->Append( ( SDAI_Application_instance * ) prodcat, completeSE );
    prodcat->name_( "'assembly'" );
    prodcat->description_( "''" );
    prodcat->products_()->AddNode( new EntityNode( ( SDAI_Application_instance * ) prod ) );

    SdaiProduct_definition_formation_with_specified_source * prod_def_form = ( SdaiProduct_definition_formation_with_specified_source * ) registry->ObjCreate( "PRODUCT_DEFINITION_FORMATION_WITH_SPECIFIED_SOURCE" );
    instance_list->Append( ( SDAI_Application_instance * ) prod_def_form, completeSE );
    prod_def_form->id_( "''" );
    prod_def_form->description_( "''" );
    prod_def_form->of_product_( prod );
    prod_def_form->make_or_buy_( Source__made );

    SdaiProduct_definition * prod_def = ( SdaiProduct_definition * ) registry->ObjCreate( "PRODUCT_DEFINITION" );
    instance_list->Append( ( SDAI_Application_instance * ) prod_def, completeSE );
    prod_def->id_( "''" );
    prod_def->description_( "''" );
//.........这里部分代码省略.........