Open Inventor Release 2024.1.2
 
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SbProjector.h
1/*=======================================================================
2 * Copyright 1991-1996, Silicon Graphics, Inc.
3 * ALL RIGHTS RESERVED
4 *
5 * UNPUBLISHED -- Rights reserved under the copyright laws of the United
6 * States. Use of a copyright notice is precautionary only and does not
7 * imply publication or disclosure.
8 *
9 * U.S. GOVERNMENT RESTRICTED RIGHTS LEGEND:
10 * Use, duplication or disclosure by the Government is subject to restrictions
11 * as set forth in FAR 52.227.19(c)(2) or subparagraph (c)(1)(ii) of the Rights
12 * in Technical Data and Computer Software clause at DFARS 252.227-7013 and/or
13 * in similar or successor clauses in the FAR, or the DOD or NASA FAR
14 * Supplement. Contractor/manufacturer is Silicon Graphics, Inc.,
15 * 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311.
16 *
17 * THE CONTENT OF THIS WORK CONTAINS CONFIDENTIAL AND PROPRIETARY
18 * INFORMATION OF SILICON GRAPHICS, INC. ANY DUPLICATION, MODIFICATION,
19 * DISTRIBUTION, OR DISCLOSURE IN ANY FORM, IN WHOLE, OR IN PART, IS STRICTLY
20 * PROHIBITED WITHOUT THE PRIOR EXPRESS WRITTEN PERMISSION OF SILICON
21 * GRAPHICS, INC.
22**=======================================================================*/
23/*=======================================================================
24** Author : Howard Look (MMM yyyy)
25** Modified by : Paul Isaacs (MMM yyyy)
26**=======================================================================*/
27/*=======================================================================
28 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.), ***
29 *** AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT. ***
30 *** ***
31 *** REPRODUCTION, DISCLOSURE, OR USE, IN WHOLE OR IN PART, OTHER THAN AS ***
32 *** SPECIFIED IN THE LICENSE ARE NOT TO BE UNDERTAKEN EXCEPT WITH PRIOR ***
33 *** WRITTEN AUTHORIZATION OF FEI S.A.S. ***
34 *** ***
35 *** RESTRICTED RIGHTS LEGEND ***
36 *** USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS ***
37 *** WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN ***
38 *** SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT ***
39 *** CLAUSE AT FAR 52.227-19 OR SUBPARAGRAPH (C)(1)(II) OF THE RIGHTS IN ***
40 *** TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013. ***
41 *** ***
42 *** COPYRIGHT (C) 1996-2014 BY FEI S.A.S, ***
43 *** BORDEAUX, FRANCE ***
44 *** ALL RIGHTS RESERVED ***
45**=======================================================================*/
46/*=======================================================================
47** Modified by : VSG (MMM YYYY)
48**=======================================================================*/
49
50
51#ifndef _SB_PROJECTOR_
52#define _SB_PROJECTOR_
53
54#include <Inventor/SbLinear.h>
55
85{
86 public:
90 virtual ~SbProjector() {};
91
97 virtual SbVec3f project(const SbVec2f &point) = 0;
106 virtual SbVec3f intersect( const SbLine &line ) = 0;
107
112 virtual void setViewVolume(const SbViewVolume &vol);
113
117 const SbViewVolume &getViewVolume() const { return viewVol; }
118
124 virtual void setWorkingSpace(const SbMatrix &space);
125
129 const SbMatrix &getWorkingSpace() const { return workingToWorld ; }
130
134 virtual SbProjector *copy() const = 0;
135
136 private:
137 // Default constructor.
138 // The default view volume is undefined.
139 // The default working space is identity (world space).
140 SbProjector();
141
142 // Given this mouse point, return the line it projects to
143 // in working space.
144 SbLine getWorkingLine(const SbVec2f &point) const;
145
146 SbViewVolume viewVol;
147 SbMatrix worldToWorking, workingToWorld;
148};
149
150#endif /* _SB_PROJECTOR_ */
151
Directed line in 3D.
Definition SbLine.h:57
4x4 matrix class.
Definition SbMatrix.h:309
Base class for representing projectors.
Definition SbProjector.h:85
const SbMatrix & getWorkingSpace() const
Get the transform space to work in.
virtual ~SbProjector()
Destructor.
Definition SbProjector.h:90
virtual SbVec3f intersect(const SbLine &line)=0
Applies the projector using the given line in world coordinates, returning the point in three dimensi...
virtual SbVec3f project(const SbVec2f &point)=0
Apply the projector using the given point, returning the point in three dimensions that it projects t...
virtual SbProjector * copy() const =0
Creates and returns an exact copy of the projector.
virtual void setWorkingSpace(const SbMatrix &space)
Set the transform space to work in.
virtual void setViewVolume(const SbViewVolume &vol)
Set the view volume to use for the projection.
const SbViewVolume & getViewVolume() const
Get the view volume to use for the projection.
2D vector class.
Definition SbVec.h:76
3D vector class.
Definition SbVec.h:932
3D viewing volume class.