Coin Logo Coin3D is Free Software,
published under the BSD 3-clause license.
https://bitbucket.org/Coin3D/
http://www.kongsberg.com/kogt/
SoCullElement.h
1 #ifndef COIN_SOCULLELEMENT_H
2 #define COIN_SOCULLELEMENT_H
3 
4 /**************************************************************************\
5  * Copyright (c) Kongsberg Oil & Gas Technologies AS
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions are
10  * met:
11  *
12  * Redistributions of source code must retain the above copyright notice,
13  * this list of conditions and the following disclaimer.
14  *
15  * Redistributions in binary form must reproduce the above copyright
16  * notice, this list of conditions and the following disclaimer in the
17  * documentation and/or other materials provided with the distribution.
18  *
19  * Neither the name of the copyright holder nor the names of its
20  * contributors may be used to endorse or promote products derived from
21  * this software without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27  * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
29  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
33  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 \**************************************************************************/
35 
36 #include <Inventor/elements/SoSubElement.h>
37 #include <Inventor/SbPlane.h>
38 
39 class SbBox3f;
40 class SbViewVolume;
41 
42 class COIN_DLL_API SoCullElement : public SoElement {
43  typedef SoElement inherited;
44 
45  SO_ELEMENT_HEADER(SoCullElement);
46 public:
47  static void initClass(void);
48 protected:
49  virtual ~SoCullElement();
50 
51 public:
52 
53  virtual void init(SoState * state);
54  virtual void push(SoState * state);
55 
56  static void setViewVolume(SoState * state, const SbViewVolume & vv);
57  static void addPlane(SoState * state, const SbPlane & newplane);
58  static SbBool cullBox(SoState * state, const SbBox3f & box, const SbBool transform = TRUE);
59  static SbBool cullTest(SoState * state, const SbBox3f & box, const SbBool transform = TRUE);
60  static SbBool completelyInside(SoState * state);
61 
62  virtual SbBool matches(const SoElement * elt) const;
63  virtual SoElement * copyMatchInfo(void) const;
64 
65 private:
66 
67  enum { MAXPLANES = 32 };
68 
69  static SbBool docull(SoState * state, const SbBox3f & box, const SbBool transform,
70  const SbBool updateelem);
71 
72  SbPlane plane[MAXPLANES];
73  int numplanes;
74  unsigned int flags;
75  int vvindex;
76 };
77 
78 #endif // !COIN_SOCULLELEMENT_H
static void initClass(void)
Definition: SoElement.cpp:506
The SbBox3f class is an abstraction for an axis aligned 3 dimensional box.
Definition: SbBox3f.h:46
virtual SbBool matches(const SoElement *element) const =0
Definition: SoElement.cpp:608
virtual void push(SoState *state)
Definition: SoElement.cpp:569
SoElement is the abstract base class for all elements.
Definition: SoElement.h:43
The SoState class manages the Coin scenegraph traversal state data.
Definition: SoState.h:44
virtual void init(SoState *state)
Definition: SoElement.cpp:552
virtual SoElement * copyMatchInfo(void) const =0
The SbViewVolume class is a viewing volume in 3D space.
Definition: SbViewVolume.h:50
The SbPlane class represents a plane in 3D space.
Definition: SbPlane.h:43
The SoCullElement class is used internally for render and pick culling.
Definition: SoCullElement.h:42