VTK  9.2.6
vtkViewDependentErrorMetric.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkViewDependentErrorMetric.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
32 #ifndef vtkViewDependentErrorMetric_h
33 #define vtkViewDependentErrorMetric_h
34 
36 #include "vtkRenderingCoreModule.h" // For export macro
37 
38 class vtkViewport;
39 class vtkCoordinate;
40 
41 class VTKRENDERINGCORE_EXPORT vtkViewDependentErrorMetric : public vtkGenericSubdivisionErrorMetric
42 {
43 public:
49 
51 
55  void PrintSelf(ostream& os, vtkIndent indent) override;
57 
59 
68  vtkGetMacro(PixelTolerance, double);
70 
79  void SetPixelTolerance(double value);
80 
82 
86  vtkGetObjectMacro(Viewport, vtkViewport);
87  void SetViewport(vtkViewport* viewport);
89 
110  double* leftPoint, double* midPoint, double* rightPoint, double alpha) override;
111 
125  double GetError(double* leftPoint, double* midPoint, double* rightPoint, double alpha) override;
126 
127 protected:
130 
136  double Distance2LinePoint(double x[2], double y[2], double z[2]);
137 
140  // used to get display coordinates from world coordinates
142 
143 private:
145  void operator=(const vtkViewDependentErrorMetric&) = delete;
146 };
147 
148 #endif
perform coordinate transformation, and represent position, in a variety of vtk coordinate systems
Objects that compute error during cell tessellation.
a simple class to control print indentation
Definition: vtkIndent.h:119
Objects that compute a screen-based error during cell tessellation.
static vtkViewDependentErrorMetric * New()
Construct the error metric with a default squared screen-based geometric accuracy measured in pixels ...
double GetError(double *leftPoint, double *midPoint, double *rightPoint, double alpha) override
Return the error at the mid-point.
void SetPixelTolerance(double value)
Set the squared screen-based geometric accuracy measured in pixels.
int RequiresEdgeSubdivision(double *leftPoint, double *midPoint, double *rightPoint, double alpha) override
Does the edge need to be subdivided according to the distance between the line passing through its en...
~vtkViewDependentErrorMetric() override
void PrintSelf(ostream &os, vtkIndent indent) override
Standard VTK type and error macros.
void SetViewport(vtkViewport *viewport)
Set/Get the renderer with ‘renderer’ on which the error metric is based.
double Distance2LinePoint(double x[2], double y[2], double z[2])
Square distance between a straight line (defined by points x and y) and a point z.
abstract specification for Viewports
Definition: vtkViewport.h:56
@ value
Definition: vtkX3D.h:226
@ alpha
Definition: vtkX3D.h:256