- Fix model parsing

code/AssetLib/3MF/D3MFImporter.cpp

@@ -163,7 +163,7 @@ public:
         }
         XmlNode resNode = node.child(XmlTag::resources);
         for (auto &currentNode : resNode.children()) {
-            const std::string &currentNodeName = currentNode.name();
+            const std::string currentNodeName = currentNode.name();
             if (currentNodeName == XmlTag::object) {
                 ReadObject(currentNode);
             } else if (currentNodeName == XmlTag::basematerials) {
@@ -173,8 +173,9 @@ public:
             }
         }
 
-        for (auto &currentNode : resNode.children()) {
-            const std::string &currentNodeName = currentNode.name();
+        XmlNode buildNode = node.child(XmlTag::build);
+        for (auto &currentNode : buildNode.children()) {
+            const std::string currentNodeName = currentNode.name();
             if (currentNodeName == XmlTag::item) {
                 int objectId = -1;
                 std::string transformationMatrixStr;
@@ -196,7 +197,7 @@ public:
 
         // import the metadata
         if (!mMetaData.empty()) {
-            const size_t numMeta(mMetaData.size());
+            const size_t numMeta = mMetaData.size();
             scene->mMetaData = aiMetadata::Alloc(static_cast<unsigned int>(numMeta));
             for (size_t i = 0; i < numMeta; ++i) {
                 aiString val(mMetaData[i].value);
@@ -211,6 +212,7 @@ public:
             for (auto it = mResourcesDictionnary.begin(); it != mResourcesDictionnary.end(); ++it) {
                 if (it->second->getType() == ResourceType::RT_Object) {
                     Object *obj = static_cast<Object *>(it->second);
+                    ai_assert(nullptr != obj);
                     for (unsigned int i = 0; i < obj->mMeshes.size(); ++i) {
                         scene->mMeshes[obj->mMeshIndex[i]] = obj->mMeshes[i];
                     }
@@ -352,7 +354,8 @@ private:
                 mMeshCount++;
             } else if (currentName == D3MF::XmlTag::components) {
                 for (XmlNode &currentSubNode : currentNode.children()) {
-                    if (currentSubNode.name() == D3MF::XmlTag::component) {
+                    const std::string subNodeName = currentSubNode.name();
+                    if (subNodeName == D3MF::XmlTag::component) {
                         int objectId = -1;
                         std::string componentTransformStr;
                         aiMatrix4x4 componentTransform;
@@ -360,8 +363,9 @@ private:
                             componentTransform = parseTransformMatrix(componentTransformStr);
                         }
 
-                        if (getNodeAttribute(currentSubNode, D3MF::XmlTag::objectid, objectId))
+                        if (getNodeAttribute(currentSubNode, D3MF::XmlTag::objectid, objectId)) {
                             obj->mComponents.push_back({ objectId, componentTransform });
+                        }
                     }
                 }
             }
@@ -374,7 +378,7 @@ private:
         aiMesh *mesh = new aiMesh();
 
         for (XmlNode &currentNode : node.children()) {
-            const std::string &currentName = currentNode.name();
+            const std::string currentName = currentNode.name();
             if (currentName == XmlTag::vertices) {
                 ImportVertices(currentNode, mesh);
             } else if (currentName == XmlTag::triangles) {
@@ -402,8 +406,8 @@ private:
     void ImportVertices(XmlNode &node, aiMesh *mesh) {
         std::vector<aiVector3D> vertices;
         for (XmlNode &currentNode : node.children()) {
-            const std::string &currentName = currentNode.name();
-            if (currentName == D3MF::XmlTag::vertex) {
+            const std::string currentName = currentNode.name();
+            if (currentName == XmlTag::vertex) {
                 vertices.push_back(ReadVertex(currentNode));
             }
         }
@@ -415,22 +419,22 @@ private:
 
     aiVector3D ReadVertex(XmlNode &node) {
         aiVector3D vertex;
-        vertex.x = ai_strtof(node.attribute(D3MF::XmlTag::x).as_string(), nullptr);
-        vertex.y = ai_strtof(node.attribute(D3MF::XmlTag::y).as_string(), nullptr);
-        vertex.z = ai_strtof(node.attribute(D3MF::XmlTag::z).as_string(), nullptr);
+        vertex.x = ai_strtof(node.attribute(XmlTag::x).as_string(), nullptr);
+        vertex.y = ai_strtof(node.attribute(XmlTag::y).as_string(), nullptr);
+        vertex.z = ai_strtof(node.attribute(XmlTag::z).as_string(), nullptr);
 
         return vertex;
     }
 
     void ImportTriangles(XmlNode &node, aiMesh *mesh) {
         std::vector<aiFace> faces;
-        for (XmlNode currentNode = node.first_child(); currentNode; currentNode = currentNode.next_sibling()) {
-            const std::string &currentName = currentNode.name();
-            if (currentName == D3MF::XmlTag::triangle) {
+        for (XmlNode &currentNode : node.children()) {
+            const std::string currentName = currentNode.name();
+            if (currentName == XmlTag::triangle) {
                 aiFace face = ReadTriangle(currentNode);
                 faces.push_back(face);
 
-                int pid = 0, p1;
+                int pid = 0, p1 = 0;
                 bool hasPid = getNodeAttribute(currentNode, D3MF::XmlTag::pid, pid);
                 bool hasP1 = getNodeAttribute(currentNode, D3MF::XmlTag::p1, p1);
 
@@ -472,10 +476,11 @@ private:
             BaseMaterials *baseMaterials = new BaseMaterials(id);
 
             for (XmlNode &currentNode : node.children()) {
-                if (currentNode.name() == XmlTag::basematerials_base) {
+                const std::string currentName = currentNode.name();
+                if (currentName == XmlTag::basematerials_base) {
                     baseMaterials->mMaterialIndex.push_back(mMaterialCount);
                     baseMaterials->mMaterials.push_back(readMaterialDef(currentNode, id));
-                    mMaterialCount++;
+                    ++mMaterialCount;
                 }
             }
 
@@ -489,11 +494,7 @@ private:
         }
 
         //format of the color string: #RRGGBBAA or #RRGGBB (3MF Core chapter 5.1.1)
-#ifdef _WIN32
-        const size_t len = strnlen_s(color, 9);
-#else
-        const size_t len = strnlen(color, 9);
-#endif
+        const size_t len = strlen(color);
         if (9 != len && 7 != len) {
             return false;
         }
@@ -603,7 +604,7 @@ bool D3MFImporter::CanRead(const std::string &filename, IOSystem *pIOHandler, bo
         if (!ZipArchiveIOSystem::isZipArchive(pIOHandler, filename)) {
             return false;
         }
-        D3MF::D3MFOpcPackage opcPackage(pIOHandler, filename);
+        D3MFOpcPackage opcPackage(pIOHandler, filename);
         return opcPackage.validate();
     }
 

include/assimp/StringUtils.h

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2021, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -249,4 +248,4 @@ AI_FORCE_INLINE std::string ai_str_toupper(const std::string &in) {
     return out;
 }
 
-#endif
+#endif // INCLUDED_AI_STRINGUTILS_H