VTK
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
35#include "vtkRenderingCoreModule.h" // For export macro
37
38class vtkViewport;
39class vtkCoordinate;
40
42{
43public:
49
51
55 void PrintSelf(ostream& os, vtkIndent indent);
57
59
68 vtkGetMacro(PixelTolerance, double);
70
80
82
86 vtkGetObjectMacro(Viewport,vtkViewport);
87 void SetViewport(vtkViewport *viewport);
89
109 int RequiresEdgeSubdivision(double *leftPoint, double *midPoint, double *rightPoint,
110 double alpha);
111
125 double GetError(double *leftPoint, double *midPoint,
126 double *rightPoint, double alpha);
127
128protected:
131
137 double Distance2LinePoint(double x[2],
138 double y[2],
139 double z[2]);
140
143 // used to get display coordinates from world coordinates
145
146private:
148 void operator=(const vtkViewDependentErrorMetric&) VTK_DELETE_FUNCTION;
149};
150
151#endif
perform coordinate transformation, and represent position, in a variety of vtk coordinate systems
Definition: vtkCoordinate.h:71
Objects that compute error during cell tessellation.
a simple class to control print indentation
Definition: vtkIndent.h:40
Objects that compute a screen-based error during cell tessellation.
void PrintSelf(ostream &os, vtkIndent indent)
Methods invoked by print to print information about the object including superclasses.
int RequiresEdgeSubdivision(double *leftPoint, double *midPoint, double *rightPoint, double alpha)
Does the edge need to be subdivided according to the distance between the line passing through its en...
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)
Return the error at the mid-point.
void SetPixelTolerance(double value)
Set the squared screen-based geometric accuracy measured in pixels.
void SetViewport(vtkViewport *viewport)
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:48
@ value
Definition: vtkX3D.h:220
@ alpha
Definition: vtkX3D.h:250