/*========================================================================= Program: Visualization Toolkit Module: vtkBridgePointIteratorOne.cxx Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen All rights reserved. See Copyright.txt or http://www.kitware.com/Copyright.htm for details. This software is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the above copyright notice for more information. =========================================================================*/ // .NAME vtkBridgePointIteratorOne - Implementation of vtkGenericPointIterator. // .SECTION Description // It is just an example that show how to implement the Generic. It is also // used for testing and evaluating the Generic. // .SECTION See Also // vtkGenericPointIterator, vtkBridgeDataSet #include "vtkBridgePointIteratorOne.h" #include <assert.h> #include "vtkObjectFactory.h" #include "vtkBridgeDataSet.h" #include "vtkDataSet.h" vtkStandardNewMacro(vtkBridgePointIteratorOne); //----------------------------------------------------------------------------- // Description: // Default constructor. vtkBridgePointIteratorOne::vtkBridgePointIteratorOne() { this->DataSet=0; this->cIsAtEnd=1; } //----------------------------------------------------------------------------- // Description: // Destructor. vtkBridgePointIteratorOne::~vtkBridgePointIteratorOne() { vtkSetObjectBodyMacro(DataSet,vtkBridgeDataSet,0); } //----------------------------------------------------------------------------- void vtkBridgePointIteratorOne::PrintSelf(ostream& os, vtkIndent indent) { this->Superclass::PrintSelf(os,indent); } //----------------------------------------------------------------------------- // Description: // Move iterator to first position if any (loop initialization). void vtkBridgePointIteratorOne::Begin() { this->cIsAtEnd=0; } //----------------------------------------------------------------------------- // Description: // Is there no point at iterator position? (exit condition). int vtkBridgePointIteratorOne::IsAtEnd() { return this->cIsAtEnd; } //----------------------------------------------------------------------------- // Description: // Move iterator to next position. (loop progression). // \pre not_off: !IsAtEnd() void vtkBridgePointIteratorOne::Next() { assert("pre: not_off" && !IsAtEnd()); this->cIsAtEnd=1; } //----------------------------------------------------------------------------- // Description: // Point at iterator position. // \pre not_off: !IsAtEnd() // \post result_exists: result!=0 double *vtkBridgePointIteratorOne::GetPosition() { assert("pre: not_off" && !IsAtEnd()); double *result=this->DataSet->Implementation->GetPoint(this->Id); assert("post: result_exists" && result!=0); return result; } //----------------------------------------------------------------------------- // Description: // Point at iterator position. // \pre not_off: !IsAtEnd() // \pre x_exists: x!=0 void vtkBridgePointIteratorOne::GetPosition(double x[3]) { assert("pre: not_off" && !IsAtEnd()); assert("pre: x_exists" && x!=0); this->DataSet->Implementation->GetPoint(this->Id,x); } //----------------------------------------------------------------------------- // Description: // Unique identifier for the point, could be non-contiguous // \pre not_off: !IsAtEnd() vtkIdType vtkBridgePointIteratorOne::GetId() { assert("pre: not_off" && !IsAtEnd()); return this->Id; } //----------------------------------------------------------------------------- // Description: // Used internally by vtkBridgeDataSet. // Iterate over one point of identifier `id' on dataset `ds'. // \pre ds_can_be_null: ds!=0 || ds==0 // \pre valid_id: vtkImplies(ds!=0,(id>=0)&&(id<=ds->GetNumberOfCells())) void vtkBridgePointIteratorOne::InitWithOnePoint(vtkBridgeDataSet *ds, vtkIdType id) { assert("pre: valid_id" && ((!ds!=0)|| ((id>=0)&&(id<=ds->GetNumberOfCells())))); // A=>B: !A||B vtkSetObjectBodyMacro(DataSet,vtkBridgeDataSet,ds); this->Id=id; }