Merge pull request #3306 from assimp/issue_3305

closes https://github.com/assimp/assimp/issues/3305: remove merge issue.

code/AMF/AMFImporter.cpp

@@ -1,707 +0,0 @@
-/*
----------------------------------------------------------------------------
-Open Asset Import Library (assimp)
----------------------------------------------------------------------------
-
-Copyright (c) 2006-2020, assimp team
-
-
-
-All rights reserved.
-
-Redistribution and use of this software in source and binary forms,
-with or without modification, are permitted provided that the following
-conditions are met:
-
-* Redistributions of source code must retain the above
-copyright notice, this list of conditions and the
-following disclaimer.
-
-* Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the
-following disclaimer in the documentation and/or other
-materials provided with the distribution.
-
-* Neither the name of the assimp team, nor the names of its
-contributors may be used to endorse or promote products
-derived from this software without specific prior
-written permission of the assimp team.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
----------------------------------------------------------------------------
-*/
-
-/// \file AMFImporter.cpp
-/// \brief AMF-format files importer for Assimp: main algorithm implementation.
-/// \date 2016
-/// \author [email protected]
-
-#ifndef ASSIMP_BUILD_NO_AMF_IMPORTER
-
-// Header files, Assimp.
-#include "AMFImporter.hpp"
-#include "AMFImporter_Macro.hpp"
-
-#include <assimp/fast_atof.h>
-#include <assimp/DefaultIOSystem.h>
-
-// Header files, stdlib.
-#include <memory>
-
-namespace Assimp
-{
-
-/// \var aiImporterDesc AMFImporter::Description
-/// Conastant which hold importer description
-const aiImporterDesc AMFImporter::Description = {
-	"Additive manufacturing file format(AMF) Importer",
-	"smalcom",
-	"",
-	"See documentation in source code. Chapter: Limitations.",
-	aiImporterFlags_SupportTextFlavour | aiImporterFlags_LimitedSupport | aiImporterFlags_Experimental,
-	0,
-	0,
-	0,
-	0,
-	"amf"
-};
-
-void AMFImporter::Clear()
-{
-	mNodeElement_Cur = nullptr;
-	mUnit.clear();
-	mMaterial_Converted.clear();
-	mTexture_Converted.clear();
-	// Delete all elements
-	if(!mNodeElement_List.empty())
-	{
-		for(CAMFImporter_NodeElement* ne: mNodeElement_List) { delete ne; }
-
-		mNodeElement_List.clear();
-	}
-}
-
-AMFImporter::~AMFImporter()
-{
-	if(mReader != nullptr) delete mReader;
-	// Clear() is accounting if data already is deleted. So, just check again if all data is deleted.
-	Clear();
-}
-
-/*********************************************************************************************************************************************/
-/************************************************************ Functions: find set ************************************************************/
-/*********************************************************************************************************************************************/
-
-bool AMFImporter::Find_NodeElement(const std::string& pID, const CAMFImporter_NodeElement::EType pType, CAMFImporter_NodeElement** pNodeElement) const
-{
-	for(CAMFImporter_NodeElement* ne: mNodeElement_List)
-	{
-		if((ne->ID == pID) && (ne->Type == pType))
-		{
-			if(pNodeElement != nullptr) *pNodeElement = ne;
-
-			return true;
-		}
-	}// for(CAMFImporter_NodeElement* ne: mNodeElement_List)
-
-	return false;
-}
-
-bool AMFImporter::Find_ConvertedNode(const std::string& pID, std::list<aiNode*>& pNodeList, aiNode** pNode) const
-{
-aiString node_name(pID.c_str());
-
-	for(aiNode* node: pNodeList)
-	{
-		if(node->mName == node_name)
-		{
-			if(pNode != nullptr) *pNode = node;
-
-			return true;
-		}
-	}// for(aiNode* node: pNodeList)
-
-	return false;
-}
-
-bool AMFImporter::Find_ConvertedMaterial(const std::string& pID, const SPP_Material** pConvertedMaterial) const
-{
-	for(const SPP_Material& mat: mMaterial_Converted)
-	{
-		if(mat.ID == pID)
-		{
-			if(pConvertedMaterial != nullptr) *pConvertedMaterial = &mat;
-
-			return true;
-		}
-	}// for(const SPP_Material& mat: mMaterial_Converted)
-
-	return false;
-}
-
-/*********************************************************************************************************************************************/
-/************************************************************ Functions: throw set ***********************************************************/
-/*********************************************************************************************************************************************/
-
-void AMFImporter::Throw_CloseNotFound(const std::string& pNode)
-{
-	throw DeadlyImportError("Close tag for node <" + pNode + "> not found. Seems file is corrupt.");
-}
-
-void AMFImporter::Throw_IncorrectAttr(const std::string& pAttrName)
-{
-	throw DeadlyImportError("Node <" + std::string(mReader->getNodeName()) + "> has incorrect attribute \"" + pAttrName + "\".");
-}
-
-void AMFImporter::Throw_IncorrectAttrValue(const std::string& pAttrName)
-{
-	throw DeadlyImportError("Attribute \"" + pAttrName + "\" in node <" + std::string(mReader->getNodeName()) + "> has incorrect value.");
-}
-
-void AMFImporter::Throw_MoreThanOnceDefined(const std::string& pNodeType, const std::string& pDescription)
-{
-	throw DeadlyImportError("\"" + pNodeType + "\" node can be used only once in " + mReader->getNodeName() + ". Description: " + pDescription);
-}
-
-void AMFImporter::Throw_ID_NotFound(const std::string& pID) const
-{
-	throw DeadlyImportError("Not found node with name \"" + pID + "\".");
-}
-
-/*********************************************************************************************************************************************/
-/************************************************************* Functions: XML set ************************************************************/
-/*********************************************************************************************************************************************/
-
-void AMFImporter::XML_CheckNode_MustHaveChildren()
-{
-	if(mReader->isEmptyElement()) throw DeadlyImportError(std::string("Node <") + mReader->getNodeName() + "> must have children.");
-}
-
-void AMFImporter::XML_CheckNode_SkipUnsupported(const std::string& pParentNodeName)
-{
-    static const size_t Uns_Skip_Len = 3;
-    const char* Uns_Skip[Uns_Skip_Len] = { "composite", "edge", "normal" };
-
-    static bool skipped_before[Uns_Skip_Len] = { false, false, false };
-
-    std::string nn(mReader->getNodeName());
-    bool found = false;
-    bool close_found = false;
-    size_t sk_idx;
-
-	for(sk_idx = 0; sk_idx < Uns_Skip_Len; sk_idx++)
-	{
-		if(nn != Uns_Skip[sk_idx]) continue;
-
-		found = true;
-		if(mReader->isEmptyElement())
-		{
-			close_found = true;
-
-			goto casu_cres;
-		}
-
-		while(mReader->read())
-		{
-			if((mReader->getNodeType() == irr::io::EXN_ELEMENT_END) && (nn == mReader->getNodeName()))
-			{
-				close_found = true;
-
-				goto casu_cres;
-			}
-		}
-	}// for(sk_idx = 0; sk_idx < Uns_Skip_Len; sk_idx++)
-
-casu_cres:
-
-	if(!found) throw DeadlyImportError("Unknown node \"" + nn + "\" in " + pParentNodeName + ".");
-	if(!close_found) Throw_CloseNotFound(nn);
-
-	if(!skipped_before[sk_idx])
-	{
-		skipped_before[sk_idx] = true;
-        ASSIMP_LOG_WARN_F("Skipping node \"", nn, "\" in ", pParentNodeName, ".");
-	}
-}
-
-bool AMFImporter::XML_SearchNode(const std::string& pNodeName)
-{
-	while(mReader->read())
-	{
-		if((mReader->getNodeType() == irr::io::EXN_ELEMENT) && XML_CheckNode_NameEqual(pNodeName)) return true;
-	}
-
-	return false;
-}
-
-bool AMFImporter::XML_ReadNode_GetAttrVal_AsBool(const int pAttrIdx)
-{
-    std::string val(mReader->getAttributeValue(pAttrIdx));
-
-	if((val == "false") || (val == "0"))
-		return false;
-	else if((val == "true") || (val == "1"))
-		return true;
-	else
-		throw DeadlyImportError("Bool attribute value can contain \"false\"/\"0\" or \"true\"/\"1\" not the \"" + val + "\"");
-}
-
-float AMFImporter::XML_ReadNode_GetAttrVal_AsFloat(const int pAttrIdx)
-{
-    std::string val;
-    float tvalf;
-
-	ParseHelper_FixTruncatedFloatString(mReader->getAttributeValue(pAttrIdx), val);
-	fast_atoreal_move(val.c_str(), tvalf, false);
-
-	return tvalf;
-}
-
-uint32_t AMFImporter::XML_ReadNode_GetAttrVal_AsU32(const int pAttrIdx)
-{
-	return strtoul10(mReader->getAttributeValue(pAttrIdx));
-}
-
-float AMFImporter::XML_ReadNode_GetVal_AsFloat()
-{
-    std::string val;
-    float tvalf;
-
-	if(!mReader->read()) throw DeadlyImportError("XML_ReadNode_GetVal_AsFloat. No data, seems file is corrupt.");
-	if(mReader->getNodeType() != irr::io::EXN_TEXT) throw DeadlyImportError("XML_ReadNode_GetVal_AsFloat. Invalid type of XML element, seems file is corrupt.");
-
-	ParseHelper_FixTruncatedFloatString(mReader->getNodeData(), val);
-	fast_atoreal_move(val.c_str(), tvalf, false);
-
-	return tvalf;
-}
-
-uint32_t AMFImporter::XML_ReadNode_GetVal_AsU32()
-{
-	if(!mReader->read()) throw DeadlyImportError("XML_ReadNode_GetVal_AsU32. No data, seems file is corrupt.");
-	if(mReader->getNodeType() != irr::io::EXN_TEXT) throw DeadlyImportError("XML_ReadNode_GetVal_AsU32. Invalid type of XML element, seems file is corrupt.");
-
-	return strtoul10(mReader->getNodeData());
-}
-
-void AMFImporter::XML_ReadNode_GetVal_AsString(std::string& pValue)
-{
-	if(!mReader->read()) throw DeadlyImportError("XML_ReadNode_GetVal_AsString. No data, seems file is corrupt.");
-	if(mReader->getNodeType() != irr::io::EXN_TEXT)
-		throw DeadlyImportError("XML_ReadNode_GetVal_AsString. Invalid type of XML element, seems file is corrupt.");
-
-	pValue = mReader->getNodeData();
-}
-
-/*********************************************************************************************************************************************/
-/************************************************************ Functions: parse set ***********************************************************/
-/*********************************************************************************************************************************************/
-
-void AMFImporter::ParseHelper_Node_Enter(CAMFImporter_NodeElement* pNode)
-{
-	mNodeElement_Cur->Child.push_back(pNode);// add new element to current element child list.
-	mNodeElement_Cur = pNode;// switch current element to new one.
-}
-
-void AMFImporter::ParseHelper_Node_Exit()
-{
-	// check if we can walk up.
-	if(mNodeElement_Cur != nullptr) mNodeElement_Cur = mNodeElement_Cur->Parent;
-}
-
-void AMFImporter::ParseHelper_FixTruncatedFloatString(const char* pInStr, std::string& pOutString)
-{
-    size_t instr_len;
-
-	pOutString.clear();
-	instr_len = strlen(pInStr);
-	if(!instr_len) return;
-
-	pOutString.reserve(instr_len * 3 / 2);
-	// check and correct floats in format ".x". Must be "x.y".
-	if(pInStr[0] == '.') pOutString.push_back('0');
-
-	pOutString.push_back(pInStr[0]);
-	for(size_t ci = 1; ci < instr_len; ci++)
-	{
-		if((pInStr[ci] == '.') && ((pInStr[ci - 1] == ' ') || (pInStr[ci - 1] == '-') || (pInStr[ci - 1] == '+') || (pInStr[ci - 1] == '\t')))
-		{
-			pOutString.push_back('0');
-			pOutString.push_back('.');
-		}
-		else
-		{
-			pOutString.push_back(pInStr[ci]);
-		}
-	}
-}
-
-static bool ParseHelper_Decode_Base64_IsBase64(const char pChar)
-{
-	return (isalnum(pChar) || (pChar == '+') || (pChar == '/'));
-}
-
-void AMFImporter::ParseHelper_Decode_Base64(const std::string& pInputBase64, std::vector<uint8_t>& pOutputData) const
-{
-    // With help from
-    // René Nyffenegger http://www.adp-gmbh.ch/cpp/common/base64.html
-    const std::string base64_chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-    uint8_t tidx = 0;
-    uint8_t arr4[4], arr3[3];
-
-	// check input data
-	if(pInputBase64.size() % 4) throw DeadlyImportError("Base64-encoded data must have size multiply of four.");
-	// prepare output place
-	pOutputData.clear();
-	pOutputData.reserve(pInputBase64.size() / 4 * 3);
-
-	for(size_t in_len = pInputBase64.size(), in_idx = 0; (in_len > 0) && (pInputBase64[in_idx] != '='); in_len--)
-	{
-		if(ParseHelper_Decode_Base64_IsBase64(pInputBase64[in_idx]))
-		{
-			arr4[tidx++] = pInputBase64[in_idx++];
-			if(tidx == 4)
-			{
-				for(tidx = 0; tidx < 4; tidx++) arr4[tidx] = (uint8_t)base64_chars.find(arr4[tidx]);
-
-				arr3[0] = (arr4[0] << 2) + ((arr4[1] & 0x30) >> 4);
-				arr3[1] = ((arr4[1] & 0x0F) << 4) + ((arr4[2] & 0x3C) >> 2);
-				arr3[2] = ((arr4[2] & 0x03) << 6) + arr4[3];
-				for(tidx = 0; tidx < 3; tidx++) pOutputData.push_back(arr3[tidx]);
-
-				tidx = 0;
-			}// if(tidx == 4)
-		}// if(ParseHelper_Decode_Base64_IsBase64(pInputBase64[in_idx]))
-		else
-		{
-			in_idx++;
-		}// if(ParseHelper_Decode_Base64_IsBase64(pInputBase64[in_idx])) else
-	}
-
-	if(tidx)
-	{
-		for(uint8_t i = tidx; i < 4; i++) arr4[i] = 0;
-		for(uint8_t i = 0; i < 4; i++) arr4[i] = (uint8_t)(base64_chars.find(arr4[i]));
-
-		arr3[0] = (arr4[0] << 2) + ((arr4[1] & 0x30) >> 4);
-		arr3[1] = ((arr4[1] & 0x0F) << 4) + ((arr4[2] & 0x3C) >> 2);
-		arr3[2] = ((arr4[2] & 0x03) << 6) + arr4[3];
-		for(uint8_t i = 0; i < (tidx - 1); i++) pOutputData.push_back(arr3[i]);
-	}
-}
-
-void AMFImporter::ParseFile(const std::string& pFile, IOSystem* pIOHandler)
-{
-    irr::io::IrrXMLReader* OldReader = mReader;// store current XMLreader.
-    std::unique_ptr<IOStream> file(pIOHandler->Open(pFile, "rb"));
-
-	// Check whether we can read from the file
-    if (file.get() == nullptr) {
-        throw DeadlyImportError("Failed to open AMF file " + pFile + ".");
-    }
-
-	// generate a XML reader for it
-	std::unique_ptr<CIrrXML_IOStreamReader> mIOWrapper(new CIrrXML_IOStreamReader(file.get()));
-	mReader = irr::io::createIrrXMLReader(mIOWrapper.get());
-	if(!mReader) throw DeadlyImportError("Failed to create XML reader for file" + pFile + ".");
-	//
-	// start reading
-	// search for root tag <amf>
-	if(XML_SearchNode("amf"))
-		ParseNode_Root();
-	else
-		throw DeadlyImportError("Root node \"amf\" not found.");
-
-	delete mReader;
-	// restore old XMLreader
-	mReader = OldReader;
-}
-
-// <amf
-// unit="" - The units to be used. May be "inch", "millimeter", "meter", "feet", or "micron".
-// version="" - Version of file format.
-// >
-// </amf>
-// Root XML element.
-// Multi elements - No.
-void AMFImporter::ParseNode_Root()
-{
-    std::string unit, version;
-    CAMFImporter_NodeElement *ne( nullptr );
-
-	// Read attributes for node <amf>.
-	MACRO_ATTRREAD_LOOPBEG;
-		MACRO_ATTRREAD_CHECK_RET("unit", unit, mReader->getAttributeValue);
-		MACRO_ATTRREAD_CHECK_RET("version", version, mReader->getAttributeValue);
-	MACRO_ATTRREAD_LOOPEND_WSKIP;
-
-	// Check attributes
-	if(!mUnit.empty())
-	{
-		if((mUnit != "inch") && (mUnit != "millimeter") && (mUnit != "meter") && (mUnit != "feet") && (mUnit != "micron")) Throw_IncorrectAttrValue("unit");
-	}
-
-	// create root node element.
-	ne = new CAMFImporter_NodeElement_Root(nullptr);
-	mNodeElement_Cur = ne;// set first "current" element
-	// and assign attribute's values
-	((CAMFImporter_NodeElement_Root*)ne)->Unit = unit;
-	((CAMFImporter_NodeElement_Root*)ne)->Version = version;
-
-	// Check for child nodes
-	if(!mReader->isEmptyElement())
-	{
-		MACRO_NODECHECK_LOOPBEGIN("amf");
-			if(XML_CheckNode_NameEqual("object")) { ParseNode_Object(); continue; }
-			if(XML_CheckNode_NameEqual("material")) { ParseNode_Material(); continue; }
-			if(XML_CheckNode_NameEqual("texture")) { ParseNode_Texture(); continue; }
-			if(XML_CheckNode_NameEqual("constellation")) { ParseNode_Constellation(); continue; }
-			if(XML_CheckNode_NameEqual("metadata")) { ParseNode_Metadata(); continue; }
-		MACRO_NODECHECK_LOOPEND("amf");
-		mNodeElement_Cur = ne;// force restore "current" element
-	}// if(!mReader->isEmptyElement())
-
-	mNodeElement_List.push_back(ne);// add to node element list because its a new object in graph.
-}
-
-// <constellation
-// id="" - The Object ID of the new constellation being defined.
-// >
-// </constellation>
-// A collection of objects or constellations with specific relative locations.
-// Multi elements - Yes.
-// Parent element - <amf>.
-void AMFImporter::ParseNode_Constellation()
-{
-    std::string id;
-    CAMFImporter_NodeElement* ne( nullptr );
-
-	// Read attributes for node <constellation>.
-	MACRO_ATTRREAD_LOOPBEG;
-		MACRO_ATTRREAD_CHECK_RET("id", id, mReader->getAttributeValue);
-	MACRO_ATTRREAD_LOOPEND;
-
-	// create and if needed - define new grouping object.
-	ne = new CAMFImporter_NodeElement_Constellation(mNodeElement_Cur);
-
-	CAMFImporter_NodeElement_Constellation& als = *((CAMFImporter_NodeElement_Constellation*)ne);// alias for convenience
-
-	if(!id.empty()) als.ID = id;
-	// Check for child nodes
-	if(!mReader->isEmptyElement())
-	{
-		ParseHelper_Node_Enter(ne);
-		MACRO_NODECHECK_LOOPBEGIN("constellation");
-			if(XML_CheckNode_NameEqual("instance")) { ParseNode_Instance(); continue; }
-			if(XML_CheckNode_NameEqual("metadata")) { ParseNode_Metadata(); continue; }
-		MACRO_NODECHECK_LOOPEND("constellation");
-		ParseHelper_Node_Exit();
-	}// if(!mReader->isEmptyElement())
-	else
-	{
-		mNodeElement_Cur->Child.push_back(ne);// Add element to child list of current element
-	}// if(!mReader->isEmptyElement()) else
-
-	mNodeElement_List.push_back(ne);// and to node element list because its a new object in graph.
-}
-
-// <instance
-// objectid="" - The Object ID of the new constellation being defined.
-// >
-// </instance>
-// A collection of objects or constellations with specific relative locations.
-// Multi elements - Yes.
-// Parent element - <amf>.
-void AMFImporter::ParseNode_Instance()
-{
-    std::string objectid;
-    CAMFImporter_NodeElement* ne( nullptr );
-
-	// Read attributes for node <constellation>.
-	MACRO_ATTRREAD_LOOPBEG;
-		MACRO_ATTRREAD_CHECK_RET("objectid", objectid, mReader->getAttributeValue);
-	MACRO_ATTRREAD_LOOPEND;
-
-	// used object id must be defined, check that.
-	if(objectid.empty()) throw DeadlyImportError("\"objectid\" in <instance> must be defined.");
-	// create and define new grouping object.
-	ne = new CAMFImporter_NodeElement_Instance(mNodeElement_Cur);
-
-	CAMFImporter_NodeElement_Instance& als = *((CAMFImporter_NodeElement_Instance*)ne);// alias for convenience
-
-	als.ObjectID = objectid;
-	// Check for child nodes
-	if(!mReader->isEmptyElement())
-	{
-		bool read_flag[6] = { false, false, false, false, false, false };
-
-		als.Delta.Set(0, 0, 0);
-		als.Rotation.Set(0, 0, 0);
-		ParseHelper_Node_Enter(ne);
-		MACRO_NODECHECK_LOOPBEGIN("instance");
-			MACRO_NODECHECK_READCOMP_F("deltax", read_flag[0], als.Delta.x);
-			MACRO_NODECHECK_READCOMP_F("deltay", read_flag[1], als.Delta.y);
-			MACRO_NODECHECK_READCOMP_F("deltaz", read_flag[2], als.Delta.z);
-			MACRO_NODECHECK_READCOMP_F("rx", read_flag[3], als.Rotation.x);
-			MACRO_NODECHECK_READCOMP_F("ry", read_flag[4], als.Rotation.y);
-			MACRO_NODECHECK_READCOMP_F("rz", read_flag[5], als.Rotation.z);
-		MACRO_NODECHECK_LOOPEND("instance");
-		ParseHelper_Node_Exit();
-		// also convert degrees to radians.
-		als.Rotation.x = AI_MATH_PI_F * als.Rotation.x / 180.0f;
-		als.Rotation.y = AI_MATH_PI_F * als.Rotation.y / 180.0f;
-		als.Rotation.z = AI_MATH_PI_F * als.Rotation.z / 180.0f;
-	}// if(!mReader->isEmptyElement())
-	else
-	{
-		mNodeElement_Cur->Child.push_back(ne);// Add element to child list of current element
-	}// if(!mReader->isEmptyElement()) else
-
-	mNodeElement_List.push_back(ne);// and to node element list because its a new object in graph.
-}
-
-// <object
-// id="" - A unique ObjectID for the new object being defined.
-// >
-// </object>
-// An object definition.
-// Multi elements - Yes.
-// Parent element - <amf>.
-void AMFImporter::ParseNode_Object()
-{
-    std::string id;
-    CAMFImporter_NodeElement* ne( nullptr );
-
-	// Read attributes for node <object>.
-	MACRO_ATTRREAD_LOOPBEG;
-		MACRO_ATTRREAD_CHECK_RET("id", id, mReader->getAttributeValue);
-	MACRO_ATTRREAD_LOOPEND;
-
-	// create and if needed - define new geometry object.
-	ne = new CAMFImporter_NodeElement_Object(mNodeElement_Cur);
-
-	CAMFImporter_NodeElement_Object& als = *((CAMFImporter_NodeElement_Object*)ne);// alias for convenience
-
-	if(!id.empty()) als.ID = id;
-	// Check for child nodes
-	if(!mReader->isEmptyElement())
-	{
-		bool col_read = false;
-
-		ParseHelper_Node_Enter(ne);
-		MACRO_NODECHECK_LOOPBEGIN("object");
-			if(XML_CheckNode_NameEqual("color"))
-			{
-				// Check if color already defined for object.
-				if(col_read) Throw_MoreThanOnceDefined("color", "Only one color can be defined for <object>.");
-				// read data and set flag about it
-				ParseNode_Color();
-				col_read = true;
-
-				continue;
-			}
-
-			if(XML_CheckNode_NameEqual("mesh")) { ParseNode_Mesh(); continue; }
-			if(XML_CheckNode_NameEqual("metadata")) { ParseNode_Metadata(); continue; }
-		MACRO_NODECHECK_LOOPEND("object");
-		ParseHelper_Node_Exit();
-	}// if(!mReader->isEmptyElement())
-	else
-	{
-		mNodeElement_Cur->Child.push_back(ne);// Add element to child list of current element
-	}// if(!mReader->isEmptyElement()) else
-
-	mNodeElement_List.push_back(ne);// and to node element list because its a new object in graph.
-}
-
-// <metadata
-// type="" - The type of the attribute.
-// >
-// </metadata>
-// Specify additional information about an entity.
-// Multi elements - Yes.
-// Parent element - <amf>, <object>, <volume>, <material>, <vertex>.
-//
-// Reserved types are:
-// "Name" - The alphanumeric label of the entity, to be used by the interpreter if interacting with the user.
-// "Description" - A description of the content of the entity
-// "URL" - A link to an external resource relating to the entity
-// "Author" - Specifies the name(s) of the author(s) of the entity
-// "Company" - Specifying the company generating the entity
-// "CAD" - specifies the name of the originating CAD software and version
-// "Revision" - specifies the revision of the entity
-// "Tolerance" - specifies the desired manufacturing tolerance of the entity in entity's unit system
-// "Volume" - specifies the total volume of the entity, in the entity's unit system, to be used for verification (object and volume only)
-void AMFImporter::ParseNode_Metadata()
-{
-    std::string type, value;
-    CAMFImporter_NodeElement* ne( nullptr );
-
-	// read attribute
-	MACRO_ATTRREAD_LOOPBEG;
-		MACRO_ATTRREAD_CHECK_RET("type", type, mReader->getAttributeValue);
-	MACRO_ATTRREAD_LOOPEND;
-	// and value of node.
-	value = mReader->getNodeData();
-	// Create node element and assign read data.
-	ne = new CAMFImporter_NodeElement_Metadata(mNodeElement_Cur);
-	((CAMFImporter_NodeElement_Metadata*)ne)->Type = type;
-	((CAMFImporter_NodeElement_Metadata*)ne)->Value = value;
-	mNodeElement_Cur->Child.push_back(ne);// Add element to child list of current element
-	mNodeElement_List.push_back(ne);// and to node element list because its a new object in graph.
-}
-
-/*********************************************************************************************************************************************/
-/******************************************************** Functions: BaseImporter set ********************************************************/
-/*********************************************************************************************************************************************/
-
-bool AMFImporter::CanRead(const std::string& pFile, IOSystem* pIOHandler, bool pCheckSig) const
-{
-    const std::string extension = GetExtension(pFile);
-
-    if ( extension == "amf" ) {
-        return true;
-    }
-
-	if(!extension.length() || pCheckSig)
-	{
-		const char* tokens[] = { "<amf" };
-
-		return SearchFileHeaderForToken( pIOHandler, pFile, tokens, 1 );
-	}
-
-	return false;
-}
-
-void AMFImporter::GetExtensionList(std::set<std::string>& pExtensionList)
-{
-	pExtensionList.insert("amf");
-}
-
-const aiImporterDesc* AMFImporter::GetInfo () const
-{
-	return &Description;
-}
-
-void AMFImporter::InternReadFile(const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler)
-{
-	Clear();// delete old graph.
-	ParseFile(pFile, pIOHandler);
-	Postprocess_BuildScene(pScene);
-	// scene graph is ready, exit.
-}
-
-}// namespace Assimp
-
-#endif // !ASSIMP_BUILD_NO_AMF_IMPORTER