3D Modeling

[swapnalir]

I am not able to get facet data.

Is something missing in this code??

FILE *fp = NULL;
    fp = fopen("PointData.txt","w");
    api_start_modeller(0);
    api_initialize_faceter();
    BODY *hoop;

    outcome o1 = api_make_torus(50,10,hoop);
    //box bx = get_body_box(hoop);
    //double sd = (bx.)

    REFINEMENT *ref = new REFINEMENT();
    ref->set_surf_mode(AF_SURF_ALL);
    ref->set_adjust_mode(AF_ADJUST_NONE);
    ref->set_triang_mode(AF_TRIANG_ALL);
    ref->set_surface_tol(3.417601);

    o1 = api_set_default_refinement(ref);

    ENTITY_LIST face_list;
    api_get_faces( hoop, face_list );
 
    parameter_token ptoken[2];
    ptoken[0] = POSITION_TOKEN;
    ptoken[1] = NORMAL_TOKEN;

    VERTEX_TEMPLATE *vt = new VERTEX_TEMPLATE(2,ptoken);
    api_set_default_vertex_template(vt);

    FACE *f = hoop->lump()->shell()->face_list();

    int faceSize = f->size();
    while(f)
    {
        POLYGON_POINT_MESH *facets = (POLYGON_POINT_MESH*)NULL;
        o1 = api_facet_entity(f);
        o1 = api_get_body_facets(hoop,facets);
        //o1 = api_get_face_facets(f,facets);

        POLYGON *poly;
        POLYGON_VERTEX *poly_vtx;
        SPAposition vtx_pos;//position vtx_pos;

        int facetCount = facets->count();
        for(poly=facets->first(); poly!=NULL; poly = poly->next())
        {
            for(poly_vtx = poly->first(); poly_vtx!=NULL;poly_vtx= poly_vtx->next())
            {
                poly_vtx->point(vtx_pos);
                //double coordinate[3] = vtx_pos
                fprintf(fp,"%lf,%lf,%lf",vtx_pos.x(),vtx_pos.y(),vtx_pos.z());
            }
        }

        delete facets;
        f=f->next_in_list();

    }

    api_terminate_faceter();
    api_stop_modeller();

    fclose(fp);
    return 0;

[gweedo]

You need to preceed the call to api_facet_entity with storing off the old mesh manager and setting the new one. Then after the call to api_facet_entity, delete the mesh manager and restore the old one.  We made a change recently to the faceter, and changed the default mesh manager from PPM_ON_FACE_MESH_MANAGER to INDEXED_MESH_MANAGER, since that seemed like the most popular.  This was documented and I am sorry for the inconvenience.

So, your code would look something like the following:

    MESH_MANAGER *oldMM = NULL;
    MESH_MANAGER * MM = ACIS_NEW PPM_ON_FACE_MESH_MANAGER;
    api_get_mesh_manager( oldMM );
    api_set_mesh_manager( MM );

    api_facet_entity(f);

    api_set_mesh_manager( oldMM);
    ACIS_DELETE MM;

You may want to move the allocation and deletion code of the mesh manager (and maybe the seg/get methods) outside your "for" loop.

[swapnalir]

Thanks