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SbProjector.h
1 #ifndef COIN_SBPROJECTOR_H
2 #define COIN_SBPROJECTOR_H
3 
4 /**************************************************************************\
5  *
6  * This file is part of the Coin 3D visualization library.
7  * Copyright (C) by Kongsberg Oil & Gas Technologies.
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License
11  * ("GPL") version 2 as published by the Free Software Foundation.
12  * See the file LICENSE.GPL at the root directory of this source
13  * distribution for additional information about the GNU GPL.
14  *
15  * For using Coin with software that can not be combined with the GNU
16  * GPL, and for taking advantage of the additional benefits of our
17  * support services, please contact Kongsberg Oil & Gas Technologies
18  * about acquiring a Coin Professional Edition License.
19  *
20  * See http://www.coin3d.org/ for more information.
21  *
22  * Kongsberg Oil & Gas Technologies, Bygdoy Alle 5, 0257 Oslo, NORWAY.
23  * http://www.sim.no/ sales@sim.no coin-support@coin3d.org
24  *
25 \**************************************************************************/
26 
27 #include <Inventor/SbVec3f.h>
28 #include <Inventor/SbLine.h>
29 #include <Inventor/SbMatrix.h>
30 #include <Inventor/SbViewVolume.h>
31 
32 class SbVec2f;
33 
34 class COIN_DLL_API SbProjector {
35 public:
36  virtual SbVec3f project(const SbVec2f & point) = 0;
37  virtual void setViewVolume(const SbViewVolume & vol);
38  const SbViewVolume & getViewVolume(void) const;
39  virtual void setWorkingSpace(const SbMatrix & space);
40  const SbMatrix & getWorkingSpace(void) const;
41  virtual SbProjector * copy(void) const = 0;
42 
43  virtual SbBool tryProject(const SbVec2f & point, const float epsilon, SbVec3f & result);
44 
45 protected:
46  SbProjector(void);
47  virtual ~SbProjector() { }
48 
49  SbLine getWorkingLine(const SbVec2f & point) const;
50 
52  SbMatrix worldToWorking, workingToWorld;
53 
54  float findVanishingDistance(void) const;
55  SbBool verifyProjection(const SbVec3f & projpt) const;
56 };
57 
58 #endif // !COIN_SBPROJECTOR_H
The SbVec2f class is a 2 dimensional vector with floating point coordinates.This vector class is used...
Definition: SbVec2f.h:39
SbViewVolume viewVol
Definition: SbProjector.h:51
The SbProjector class is the abstract base projector class.Projectors are used in the Coin library fo...
Definition: SbProjector.h:34
virtual ~SbProjector()
Definition: SbProjector.h:47
The SbVec3f class is a 3 dimensional vector with floating point coordinates.This vector class is used...
Definition: SbVec3f.h:40
The SbLine class represents a line in 3D space.SbLine provides a way of specifying a directed line...
Definition: SbLine.h:32
The SbMatrix class is a 4x4 dimensional representation of a matrix.SbMatrix is used by many other cla...
Definition: SbMatrix.h:37
The SbViewVolume class is a viewing volume in 3D space.This class contains the necessary information ...
Definition: SbViewVolume.h:41
SbMatrix worldToWorking
Definition: SbProjector.h:52

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