VTK  9.3.1
vtkWebGLExporter.h
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1 // SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2 // SPDX-License-Identifier: BSD-3-Clause
8 #ifndef vtkWebGLExporter_h
9 #define vtkWebGLExporter_h
10 
11 #include "vtkObject.h"
12 #include "vtkWebGLExporterModule.h" // needed for export macro
13 
14 VTK_ABI_NAMESPACE_BEGIN
15 class vtkActor;
16 class vtkActor2D;
17 class vtkCellData;
18 class vtkMapper;
19 class vtkPointData;
20 class vtkPolyData;
21 class vtkRenderer;
23 class vtkTriangleFilter;
24 class vtkWebGLObject;
25 class vtkWebGLPolyData;
26 
27 VTK_ABI_NAMESPACE_END
28 
29 #include <string> // needed for internal structure
30 
31 VTK_ABI_NAMESPACE_BEGIN
32 typedef enum
33 {
37 } VTKParseType;
38 
39 class VTKWEBGLEXPORTER_EXPORT vtkWebGLExporter : public vtkObject
40 {
41 public:
42  static vtkWebGLExporter* New();
43  vtkTypeMacro(vtkWebGLExporter, vtkObject);
44  void PrintSelf(ostream& os, vtkIndent indent) override;
45 
47 
50  void parseScene(vtkRendererCollection* renderers, const char* viewId, int parseType);
51  // Generate and return the Metadata
52  void exportStaticScene(vtkRendererCollection* renderers, int width, int height, std::string path);
53  const char* GenerateMetadata();
54  const char* GetId();
55  vtkWebGLObject* GetWebGLObject(int index);
56  int GetNumberOfObjects();
57  bool hasChanged();
58  void SetCenterOfRotation(float a1, float a2, float a3);
59  void SetMaxAllowedSize(int mesh, int lines);
60  void SetMaxAllowedSize(int size);
62 
63  static void ComputeMD5(const unsigned char* content, int size, std::string& hash);
64 
65 protected:
67  ~vtkWebGLExporter() override;
68 
69  void parseRenderer(vtkRenderer* render, const char* viewId, bool onlyWidget, void* mapTime);
70  void generateRendererData(vtkRendererCollection* renderers, const char* viewId);
71  void parseActor(
72  vtkActor* actor, vtkMTimeType actorTime, size_t rendererId, int layer, bool isWidget);
73  void parseActor2D(
74  vtkActor2D* actor, vtkMTimeType actorTime, size_t renderId, int layer, bool isWidget);
75  const char* GenerateExportMetadata();
76 
77  // Get the dataset from the mapper
78  vtkTriangleFilter* GetPolyData(vtkMapper* mapper, vtkMTimeType& dataMTime);
79 
80  vtkTriangleFilter* TriangleFilter; // Last Polygon Dataset Parse
81  double CameraLookAt[10]; // Camera Look At (fov, position[3], up[3], eye[3])
82  bool GradientBackground; // If the scene use a gradient background
83  double Background1[3]; // Background color of the rendering screen (RGB)
84  double Background2[3]; // Scond background color
85  double SceneSize[3]; // Size of the bounding box of the scene
86  std::string SceneId; // Id of the parsed scene
87  float CenterOfRotation[3]; // Center Of Rotation
88  int meshObjMaxSize, lineObjMaxSize; // Max size of object allowed (faces)
90  bool hasWidget;
91 
92 private:
93  vtkWebGLExporter(const vtkWebGLExporter&) = delete;
94  void operator=(const vtkWebGLExporter&) = delete;
95 
96  class vtkInternal;
97  vtkInternal* Internal;
98 };
99 
100 VTK_ABI_NAMESPACE_END
101 #endif
represents an object (geometry & properties) in a rendered scene
Definition: vtkActor.h:40
abstract base class for most VTK objects
Definition: vtkObject.h:51
represent and manipulate point attribute data
Definition: vtkPointData.h:29
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
PolyData representation for WebGL.
vtkTypeUInt32 vtkMTimeType
Definition: vtkType.h:270
VTKParseType
a actor that draws 2D data
Definition: vtkActor2D.h:34
represent and manipulate cell attribute data
Definition: vtkCellData.h:30
convert input polygons and strips to triangles
vtkWebGLObject represent and manipulate an WebGL object and its data.
abstract specification for renderers
Definition: vtkRenderer.h:61
concrete dataset represents vertices, lines, polygons, and triangle strips
Definition: vtkPolyData.h:79
vtkWebGLExporter export the data of the scene to be used in the WebGL.
an ordered list of renderers
a simple class to control print indentation
Definition: vtkIndent.h:28
std::string SceneId
abstract class specifies interface to map data to graphics primitives
Definition: vtkMapper.h:76
static vtkObject * New()
Create an object with Debug turned off, modified time initialized to zero, and reference counting on...
vtkTriangleFilter * TriangleFilter
std::string renderersMetaData