/*========================================================================= Program: Visualization Toolkit Module: vtkBridgePointIteratorOnDataSet.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 vtkBridgePointIteratorOnDataSet - 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 "vtkBridgePointIteratorOnDataSet.h" #include <assert.h> #include "vtkObjectFactory.h" #include "vtkBridgeDataSet.h" #include "vtkDataSet.h" vtkStandardNewMacro(vtkBridgePointIteratorOnDataSet); //----------------------------------------------------------------------------- // Description: // Default constructor. vtkBridgePointIteratorOnDataSet::vtkBridgePointIteratorOnDataSet() { this->DataSet=0; this->Size=0; } //----------------------------------------------------------------------------- // Description: // Destructor. vtkBridgePointIteratorOnDataSet::~vtkBridgePointIteratorOnDataSet() { vtkSetObjectBodyMacro(DataSet,vtkBridgeDataSet,0); } //----------------------------------------------------------------------------- void vtkBridgePointIteratorOnDataSet::PrintSelf(ostream& os, vtkIndent indent) { this->Superclass::PrintSelf(os,indent); } //----------------------------------------------------------------------------- // Description: // Move iterator to first position if any (loop initialization). void vtkBridgePointIteratorOnDataSet::Begin() { this->Id=0; } //----------------------------------------------------------------------------- // Description: // Is there no point at iterator position? (exit condition). int vtkBridgePointIteratorOnDataSet::IsAtEnd() { return (this->Id<0) || (this->Id>=this->Size); } //----------------------------------------------------------------------------- // Description: // Move iterator to next position. (loop progression). // \pre not_off: !IsAtEnd() void vtkBridgePointIteratorOnDataSet::Next() { assert("pre: not_off" && !IsAtEnd()); this->Id++; } //----------------------------------------------------------------------------- // Description: // Point at iterator position. // \pre not_off: !IsAtEnd() // \post result_exists: result!=0 double *vtkBridgePointIteratorOnDataSet::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 vtkBridgePointIteratorOnDataSet::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 vtkBridgePointIteratorOnDataSet::GetId() { assert("pre: not_off" && !IsAtEnd()); return this->Id; } //----------------------------------------------------------------------------- // Description: // Used internally by vtkBridgeDataSet. // Iterate over points of `ds'. // \pre ds_exists: ds!=0 void vtkBridgePointIteratorOnDataSet::InitWithDataSet(vtkBridgeDataSet *ds) { assert("pre: ds_exists" && ds!=0); vtkSetObjectBodyMacro(DataSet,vtkBridgeDataSet,ds); this->Size=ds->GetNumberOfPoints(); }