forked from 0ad/0ad
82 lines
2.9 KiB
C++
82 lines
2.9 KiB
C++
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# ifndef SE_MESH_IMPORT_H
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# define SE_MESH_IMPORT_H
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/** \file sr_mesh_import.h
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* Topology recovery from a list of triangles
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*/
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# include "se_mesh.h"
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/*! \class SeMeshImport sr_mesh_import.h
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\brief Recovers adjacencies from a triangle list
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Note: SeMeshImport uses the indexing methods of SeMesh. */
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class SeMeshImport
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{ public :
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enum Msg { MsgOk,
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MsgNullShell,
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MsgNonManifoldFacesLost,
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MsgFinished
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};
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/*! This array will contain the recovered shells, and the user is reuired to
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get and take control of the stored pointers and after that, putting the size
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of the array to 0. If the array size is not 0, the destructor of SeMeshImport
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will delete each shell in the array. */
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SrArray<SeMeshBase*> shells;
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private :
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class Data;
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Data *_data;
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public :
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/*! Default constructor */
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SeMeshImport ();
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/*! The destructor will delete all meshes stored in the shells array.
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So that if the user wants to become responsible to maintain the
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imported meshes, he/she must take the pointers in the shell array
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and set the array size to 0. */
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virtual ~SeMeshImport ();
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/*! Compress some used internal buffers */
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void compress_buffers ();
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/*! Defines the information describing the triangle-based description to
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be imported. The list of triangles contains indices to the vertices.
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Geometrical information can be attached to the mesh by re-writing
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the availble virtual methods, which allow transforming indices
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into any kind of user-related data. */
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Msg start ( const int *triangles, int numtris, int numvtx );
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/*! Join another face to the mesh, expanding the current active contour.
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This method should be called until MsgFinished or errors occur */
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Msg next_step ();
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public :
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/* This virtual method must be derived to return a valid SeMesh for
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each new shell encountered in the data being analysed. */
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virtual SeMeshBase* get_new_shell ()=0;
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/*! Optional virtual method to attach vertex information.
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The default implementation does nothing. */
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virtual void attach_vtx_info ( SeVertex* v, int vi );
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/*! Optional virtual method to attach edge information.
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The default implementation does nothing. */
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virtual void attach_edg_info ( SeEdge* e, int a, int b );
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/*! Optional virtual method to attach face information.
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The default implementation does nothing. */
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virtual void attach_fac_info ( SeFace* f, int fi );
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/*! Optional virtual method to attach face information of holes found.
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The default implementation does nothing. */
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virtual void attach_hole_info ( SeFace* f );
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};
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//============================== end of file ===============================
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# endif // SE_MESH_IMPORT_H
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