diff options
Diffstat (limited to 'src/3rdparty/assimp/code/IFCUtil.h')
| -rw-r--r-- | src/3rdparty/assimp/code/IFCUtil.h | 146 |
1 files changed, 123 insertions, 23 deletions
diff --git a/src/3rdparty/assimp/code/IFCUtil.h b/src/3rdparty/assimp/code/IFCUtil.h index f6843110c..e78d77939 100644 --- a/src/3rdparty/assimp/code/IFCUtil.h +++ b/src/3rdparty/assimp/code/IFCUtil.h @@ -61,7 +61,9 @@ namespace IFC { typedef aiColor4t<IfcFloat> IfcColor4; -// helper for std::for_each to delete all heap-allocated items in a container +// ------------------------------------------------------------------------------------------------ +// Helper for std::for_each to delete all heap-allocated items in a container +// ------------------------------------------------------------------------------------------------ template<typename T> struct delete_fun { @@ -70,26 +72,94 @@ struct delete_fun } }; + + +// ------------------------------------------------------------------------------------------------ +// Helper used during mesh construction. Aids at creating aiMesh'es out of relatively few polygons. +// ------------------------------------------------------------------------------------------------ +struct TempMesh +{ + std::vector<IfcVector3> verts; + std::vector<unsigned int> vertcnt; + + // utilities + aiMesh* ToMesh(); + void Clear(); + void Transform(const IfcMatrix4& mat); + IfcVector3 Center() const; + void Append(const TempMesh& other); + + bool IsEmpty() const { + return verts.empty() && vertcnt.empty(); + } + + void RemoveAdjacentDuplicates(); + void RemoveDegenerates(); + + void FixupFaceOrientation(); + IfcVector3 ComputeLastPolygonNormal(bool normalize = true) const; + void ComputePolygonNormals(std::vector<IfcVector3>& normals, + bool normalize = true, + size_t ofs = 0) const; + + void Swap(TempMesh& other); +}; + + // ------------------------------------------------------------------------------------------------ // Temporary representation of an opening in a wall or a floor // ------------------------------------------------------------------------------------------------ -struct TempMesh; struct TempOpening { - const IFC::IfcExtrudedAreaSolid* solid; + const IFC::IfcSolidModel* solid; IfcVector3 extrusionDir; + boost::shared_ptr<TempMesh> profileMesh; + boost::shared_ptr<TempMesh> profileMesh2D; + + // list of points generated for this opening. This is used to + // create connections between two opposing holes created + // from a single opening instance (two because walls tend to + // have two sides). If !empty(), the other side of the wall + // has already been processed. + std::vector<IfcVector3> wallPoints; + + // ------------------------------------------------------------------------------ + TempOpening() + : solid() + , extrusionDir() + , profileMesh() + { + } // ------------------------------------------------------------------------------ - TempOpening(const IFC::IfcExtrudedAreaSolid* solid,IfcVector3 extrusionDir,boost::shared_ptr<TempMesh> profileMesh) + TempOpening(const IFC::IfcSolidModel* solid,IfcVector3 extrusionDir, + boost::shared_ptr<TempMesh> profileMesh, + boost::shared_ptr<TempMesh> profileMesh2D) : solid(solid) , extrusionDir(extrusionDir) , profileMesh(profileMesh) + , profileMesh2D(profileMesh2D) { } // ------------------------------------------------------------------------------ void Transform(const IfcMatrix4& mat); // defined later since TempMesh is not complete yet + + + + // ------------------------------------------------------------------------------ + // Helper to sort openings by distance from a given base point + struct DistanceSorter { + + DistanceSorter(const IfcVector3& base) : base(base) {} + + bool operator () (const TempOpening& a, const TempOpening& b) const { + return (a.profileMesh->Center()-base).SquareLength() < (b.profileMesh->Center()-base).SquareLength(); + } + + IfcVector3 base; + }; }; @@ -100,7 +170,7 @@ struct ConversionData { ConversionData(const STEP::DB& db, const IFC::IfcProject& proj, aiScene* out,const IFCImporter::Settings& settings) : len_scale(1.0) - , angle_scale(1.0) + , angle_scale(-1.0) , db(db) , proj(proj) , out(out) @@ -138,8 +208,11 @@ struct ConversionData // for later processing by a parent, which is a wall. std::vector<TempOpening>* apply_openings; std::vector<TempOpening>* collect_openings; + + std::set<uint64_t> already_processed; }; + // ------------------------------------------------------------------------------------------------ // Binary predicate to compare vectors with a given, quadratic epsilon. // ------------------------------------------------------------------------------------------------ @@ -155,26 +228,21 @@ struct FuzzyVectorCompare { // ------------------------------------------------------------------------------------------------ -// Helper used during mesh construction. Aids at creating aiMesh'es out of relatively few polygons. +// Ordering predicate to totally order R^2 vectors first by x and then by y // ------------------------------------------------------------------------------------------------ -struct TempMesh -{ - std::vector<IfcVector3> verts; - std::vector<unsigned int> vertcnt; - - // utilities - aiMesh* ToMesh(); - void Clear(); - void Transform(const IfcMatrix4& mat); - IfcVector3 Center() const; - void Append(const TempMesh& other); - void RemoveAdjacentDuplicates(); +struct XYSorter { + + // sort first by X coordinates, then by Y coordinates + bool operator () (const IfcVector2&a, const IfcVector2& b) const { + if (a.x == b.x) { + return a.y < b.y; + } + return a.x < b.x; + } }; - - // conversion routines for common IFC entities, implemented in IFCUtil.cpp void ConvertColor(aiColor4D& out, const IfcColourRgb& in); void ConvertColor(aiColor4D& out, const IfcColourOrFactor& in,ConversionData& conv,const aiColor4D* base); @@ -198,9 +266,41 @@ bool ProcessProfile(const IfcProfileDef& prof, TempMesh& meshout, ConversionData unsigned int ProcessMaterials(const IFC::IfcRepresentationItem& item, ConversionData& conv); // IFCGeometry.cpp +IfcMatrix3 DerivePlaneCoordinateSpace(const TempMesh& curmesh, bool& ok, IfcVector3& norOut); bool ProcessRepresentationItem(const IfcRepresentationItem& item, std::vector<unsigned int>& mesh_indices, ConversionData& conv); void AssignAddedMeshes(std::vector<unsigned int>& mesh_indices,aiNode* nd,ConversionData& /*conv*/); +void ProcessSweptAreaSolid(const IfcSweptAreaSolid& swept, TempMesh& meshout, + ConversionData& conv); + +void ProcessExtrudedAreaSolid(const IfcExtrudedAreaSolid& solid, TempMesh& result, + ConversionData& conv, bool collect_openings); + +// IFCBoolean.cpp + +void ProcessBoolean(const IfcBooleanResult& boolean, TempMesh& result, ConversionData& conv); +void ProcessBooleanHalfSpaceDifference(const IfcHalfSpaceSolid* hs, TempMesh& result, + const TempMesh& first_operand, + ConversionData& conv); + +void ProcessPolygonalBoundedBooleanHalfSpaceDifference(const IfcPolygonalBoundedHalfSpace* hs, TempMesh& result, + const TempMesh& first_operand, + ConversionData& conv); +void ProcessBooleanExtrudedAreaSolidDifference(const IfcExtrudedAreaSolid* as, TempMesh& result, + const TempMesh& first_operand, + ConversionData& conv); + + +// IFCOpenings.cpp + +bool GenerateOpenings(std::vector<TempOpening>& openings, + const std::vector<IfcVector3>& nors, + TempMesh& curmesh, + bool check_intersection, + bool generate_connection_geometry, + const IfcVector3& wall_extrusion_axis = IfcVector3(0,1,0)); + + // IFCCurve.cpp @@ -265,7 +365,7 @@ public: // and append the result to the mesh virtual void SampleDiscrete(TempMesh& out,IfcFloat start,IfcFloat end) const; -#ifdef _DEBUG +#ifdef ASSIMP_BUILD_DEBUG // check if a particular parameter value lies within the well-defined range bool InRange(IfcFloat) const; #endif @@ -304,8 +404,8 @@ public: using Curve::SampleDiscrete; }; - - +// IfcProfile.cpp +bool ProcessCurve(const IfcCurve& curve, TempMesh& meshout, ConversionData& conv); } } |