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/*=========================================================================
Program: Visualization Toolkit
Module: vtkSTLReader.h
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 vtkSTLReader - read ASCII or binary stereo lithography files
// .SECTION Description
// vtkSTLReader is a source object that reads ASCII or binary stereo
// lithography files (.stl files). The FileName must be specified to
// vtkSTLReader. The object automatically detects whether the file is
// ASCII or binary.
//
// .stl files are quite inefficient since they duplicate vertex
// definitions. By setting the Merging boolean you can control whether the
// point data is merged after reading. Merging is performed by default,
// however, merging requires a large amount of temporary storage since a
// 3D hash table must be constructed.
// .SECTION Caveats
// Binary files written on one system may not be readable on other systems.
// vtkSTLWriter uses VAX or PC byte ordering and swaps bytes on other systems.
#ifndef vtkSTLReader_h
#define vtkSTLReader_h
#include "vtkIOGeometryModule.h" // For export macro
#include "vtkAbstractPolyDataReader.h"
class vtkCellArray;
class vtkFloatArray;
class vtkIncrementalPointLocator;
class vtkPoints;
class VTKIOGEOMETRY_EXPORT vtkSTLReader : public vtkAbstractPolyDataReader
{
public:
vtkTypeMacro(vtkSTLReader,vtkAbstractPolyDataReader);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Construct object with merging set to true.
static vtkSTLReader *New();
// Description:
// Overload standard modified time function. If locator is modified,
// then this object is modified as well.
unsigned long GetMTime();
// Description:
// Turn on/off merging of points/triangles.
vtkSetMacro(Merging,int);
vtkGetMacro(Merging,int);
vtkBooleanMacro(Merging,int);
// Description:
// Turn on/off tagging of solids with scalars.
vtkSetMacro(ScalarTags,int);
vtkGetMacro(ScalarTags,int);
vtkBooleanMacro(ScalarTags,int);
// Description:
// Specify a spatial locator for merging points. By
// default an instance of vtkMergePoints is used.
void SetLocator(vtkIncrementalPointLocator *locator);
vtkGetObjectMacro(Locator,vtkIncrementalPointLocator);
protected:
vtkSTLReader();
~vtkSTLReader();
// Description:
// Create default locator. Used to create one when none is specified.
vtkIncrementalPointLocator* NewDefaultLocator();
int Merging;
int ScalarTags;
vtkIncrementalPointLocator *Locator;
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
bool ReadBinarySTL(FILE *fp, vtkPoints*, vtkCellArray*);
bool ReadASCIISTL(FILE *fp, vtkPoints*, vtkCellArray*,
vtkFloatArray* scalars=0);
int GetSTLFileType(const char *filename);
private:
vtkSTLReader(const vtkSTLReader&); // Not implemented.
void operator=(const vtkSTLReader&); // Not implemented.
};
#endif
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