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/*=========================================================================
Program: Visualization Toolkit
Module: vtkSingleVTPExporter.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.
=========================================================================*/
/**
* @class vtkSingleVTPExporter
* @brief export a scene into a single vtp file and png texture
*
* vtkSingleVTPExporter is a concrete subclass of vtkExporter that writes
* a .vtp file and a .png file containing the polydata and texture
* elements of the scene.
*
* If ActiveRenderer is specified then it exports contents of
* ActiveRenderer. Otherwise it exports contents of all renderers.
*
* @sa
* vtkExporter
*/
#ifndef vtkSingleVTPExporter_h
#define vtkSingleVTPExporter_h
#include "vtkExporter.h"
#include "vtkIOExportModule.h" // For export macro
#include <vector> // for method args
VTK_ABI_NAMESPACE_BEGIN
class vtkActor;
class vtkPolyData;
class vtkTexture;
class VTKIOEXPORT_EXPORT vtkSingleVTPExporter : public vtkExporter
{
public:
static vtkSingleVTPExporter* New();
vtkTypeMacro(vtkSingleVTPExporter, vtkExporter);
void PrintSelf(ostream& os, vtkIndent indent) override;
///@{
/**
* Specify the prefix of the files to write out. The resulting filenames
* will have .vtp and .png appended to them.
*/
vtkSetFilePathMacro(FilePrefix);
vtkGetFilePathMacro(FilePrefix);
///@}
// computes the file prefix from a filename by removing
// the .vtp extension if present. Useful for APIs that
// are filename centric.
void SetFileName(VTK_FILEPATH const char*);
protected:
vtkSingleVTPExporter();
~vtkSingleVTPExporter() override;
void WriteData() override;
class actorData
{
public:
vtkActor* Actor = nullptr;
vtkTexture* Texture = nullptr;
int ImagePosition[2];
double URange[2];
double VRange[2];
bool HaveRepeatingTexture = false;
};
int TextureSize[2];
void WriteTexture(std::vector<actorData>& actors);
void WriteVTP(std::vector<actorData>& actors);
char* FilePrefix;
// handle repeating textures by subdividing triangles
// so that they do not span mode than 0.0-1.5 of texture
// range.
vtkPolyData* FixTextureCoordinates(vtkPolyData*);
// recursive method that handles one triangle
void ProcessTriangle(const vtkIdType* pts, vtkPolyData* out);
private:
vtkSingleVTPExporter(const vtkSingleVTPExporter&) = delete;
void operator=(const vtkSingleVTPExporter&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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