CRhinoCommand::result CCommandSampleLineMeshIntersect::RunCommand( const CRhinoCommandContext& context )
{
  CRhinoGetObject gm;
  gm.SetCommandPrompt(L"Select mesh to intersect");
  gm.SetGeometryFilter(CRhinoGetObject::mesh_object);
  gm.GetObjects(1, 1);
  if (gm.CommandResult() != CRhinoCommand::success)
    return gm.CommandResult();

  const ON_Mesh* mesh = gm.Object(0).Mesh();
  if (0 == mesh)
    return CRhinoCommand::failure;

  CRhinoGetObject gl;
  gl.SetCommandPrompt(L"Select line to intersect with");
  gl.SetGeometryFilter(CRhinoGetObject::curve_object);
  gl.SetGeometryAttributeFilter(CRhinoGetObject::open_curve);
  gl.EnablePreSelect(FALSE);
  gl.EnableDeselectAllBeforePostSelect(FALSE);
  gl.GetObjects(1, 1);
  if (gl.CommandResult() != CRhinoCommand::success)
    return gl.CommandResult();

  const ON_Curve* curve = gl.Object(0).Curve();
  if (0 == curve)
    return CRhinoCommand::failure;

  const ON_LineCurve* line_curve = ON_LineCurve::Cast(curve);
  if (0 == line_curve)
  {
    RhinoApp().Print(L"Not a line curve.\n");
    return CRhinoCommand::nothing;
  }

  ON_3dPointArray points;
  points.Append(line_curve->m_line.from);
  points.Append(line_curve->m_line.to);

  const ON_MeshTree* mesh_tree = mesh->MeshTree(true);
  if (mesh_tree)
  {
    ON_SimpleArray<ON_CMX_EVENT> cmx;
    if (mesh_tree->IntersectPolyline(2, points.Array(), cmx))
    {
      for (int i = 0; i < cmx.Count(); i++)
      {
        RhinoApp().Print(L"Intesection found at face index = %d.\n", cmx[i].m_M[0].m_face_index);
        CRhinoPointObject* point_object = context.m_doc.AddPointObject(cmx[i].m_M[0].m_P);
        if (point_object)
          point_object->Select();
      }
      context.m_doc.Redraw();
    }

    if (1 == cmx.Count())
      RhinoApp().Print(L"1 intesection found.\n");
    else
      RhinoApp().Print(L"%d intesections found.\n", cmx.Count());
  }

  return CRhinoCommand::success;
}
예제 #2
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CRhinoCommand::result CCommandTestAnimator::RunCommand( const CRhinoCommandContext& context )
{
    // Select objects to animate
    CRhinoGetObject go;
    go.SetCommandPrompt( L"Select objects to animate" );
    go.GetObjects( 1, 0 );
    if( go.CommandResult() != success )
        return go.CommandResult();

    // Select path curve
    CRhinoGetObject gc;
    gc.SetCommandPrompt( L"Select path curve" );
    gc.SetGeometryFilter( CRhinoGetObject::curve_object );
    gc.SetGeometryAttributeFilter( CRhinoGetObject::open_curve );
    gc.GetObjects( 1, 1 );
    if( gc.CommandResult() != success )
        return gc.CommandResult();

    const ON_Curve* crv = gc.Object(0).Curve();
    if( 0 == crv )
        return failure;

    // Create an array of normalized curve parameters
    ON_SimpleArray<double> t_array( m_max_steps );
    t_array.SetCount( m_max_steps );
    int i = 0;
    for( i = 0; i < m_max_steps; i++ )
    {
        double t = (double)i / ( (double)m_max_steps - 1 );
        t_array[i] = t;
    }

    // Get the real parameters along the curve
    if( !crv->GetNormalizedArcLengthPoints(m_max_steps, t_array.Array(), t_array.Array()) )
        return failure;

    // Create our dialog box with animatin slider...
    CTestAnimatorDlg dlg( CWnd::FromHandle(RhinoApp().MainWnd()) );
    dlg.m_max_steps = m_max_steps;
    dlg.m_start = crv->PointAtStart();

    // Get points along curve
    for( i = 0; i < m_max_steps; i++ )
    {
        ON_3dPoint pt = crv->PointAt( t_array[i] );
        dlg.m_points.Append( pt );
    }

    // Hide objects and add them to callback's object array
    for( i = 0; i < go.ObjectCount(); i++ )
    {
        CRhinoObjRef ref = go.Object(i);
        context.m_doc.HideObject( ref );
        dlg.m_conduit.m_objects.Append( ref.Object() );
    }

    // Do the dialog
    INT_PTR rc = dlg.DoModal();

    // If OK was pressed, transform the objects.
    // Otherwise, just unhide them.
    for( i = 0; i < go.ObjectCount(); i++ )
    {
        CRhinoObjRef ref = go.Object(i);
        context.m_doc.ShowObject( ref );
        if( rc == IDOK )
        {
            ON_Xform xform = dlg.m_conduit.m_xform;
            context.m_doc.TransformObject( ref, xform );
        }
    }

    context.m_doc.Redraw( CRhinoView::regenerate_display_hint );

    return CRhinoCommand::success;
}
CRhinoCommand::result CCommandTestUVMesh::RunCommand( const CRhinoCommandContext& context )
{
  bool bDeleteInput = false;
  CRhinoGetObject go;
  go.SetCommandPrompt(L"Select untrimmed surface");
  go.AddCommandOptionInteger(RHCMDOPTNAME(L"U"), &m_U, 0, 2);
  go.AddCommandOptionInteger(RHCMDOPTNAME(L"V"), &m_V, 0, 2);
  go.AddCommandOptionToggle(RHCMDOPTNAME(L"DeleteInput"), RHCMDOPTVALUE(L"No"), RHCMDOPTVALUE(L"Yes"), bDeleteInput, &bDeleteInput);
  go.SetGeometryFilter(CRhinoGetObject::surface_object);
  go.SetGeometryAttributeFilter(CRhinoGetObject::untrimmed_surface);

  CRhinoGet::result rs = CRhinoGet::no_result;
  while (CRhinoGet::cancel != rs && CRhinoGet::nothing != rs && CRhinoGet::object != rs)
    rs = go.GetObjects(1,1);

  if (CRhinoGet::cancel == rs)
    return CRhinoCommand::cancel;
  if (0 == go.ObjectCount())
    return CRhinoCommand::failure;

  const CRhinoObject* pObj = go .Object(0).Object();
  if (0 == pObj)
    return CRhinoCommand::failure;

  const ON_BrepFace* pBrepFace = go.Object(0).Face();
  if (0 == pBrepFace)
    return CRhinoCommand::failure;

  const ON_Surface* pSurf = pBrepFace->SurfaceOf();
  if (0 == pSurf)
    return CRhinoCommand::failure;

  ON_SimpleArray<double>UArray(m_U+1);
  ON_SimpleArray<double>VArray(m_V+1);
  double UDist, VDist;
  UDist = (pSurf->Domain(0).m_t[1]-pSurf->Domain(0).m_t[0])/m_U;
  VDist = (pSurf->Domain(1).m_t[1]-pSurf->Domain(1).m_t[0])/m_V;
  int i;
  for (i=0; i <= m_U; i++)
    UArray.Append(pSurf->Domain(0).m_t[0] + i*UDist);
  for (i=0; i <= m_V; i++)
    VArray.Append(pSurf->Domain(1).m_t[0] + i*VDist);

  //If m_U or m_V are large then there can be a slight difference between
  //pSurf->Domain(0).m_t[0] + (m_U-1)*UDist and pSurf->Domain(0).m_t[1]
  //ON_MeshSurface requires it to be less than or equal to pSurf->Domain(0).m_t[1]
  //05/24/06 TimH Fix for RR21194
  double* d = UArray.Last();
  if (pSurf->Domain(0).m_t[1] < *d)
    *d = pSurf->Domain(0).m_t[1];
  d = VArray.Last();
  if (pSurf->Domain(1).m_t[1] < *d)
    *d = pSurf->Domain(1).m_t[1];

  ON_Mesh* pMeshOut = ON_MeshSurface(*pSurf, m_U+1, UArray.Array(), m_V+1, VArray.Array());

  if (0 == pMeshOut)
    return CRhinoCommand::failure;

  CRhinoMeshObject* pMeshObj = new CRhinoMeshObject(pObj->Attributes());
  if (0 == pMeshObj)
  {
    delete pMeshOut;
    return CRhinoCommand::failure;
  }
  pMeshObj->SetMesh(pMeshOut);

  if (true == bDeleteInput)
    context.m_doc.ReplaceObject(pObj, pMeshObj);
  else
    context.m_doc.AddObject(pMeshObj);

  context.m_doc.Redraw();
  return CRhinoCommand::success;
}