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- /*
- ---------------------------------------------------------------------------
- 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() == NULL) 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
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