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#ifndef COIN_SBDPVIEWVOLUME_H
#define COIN_SBDPVIEWVOLUME_H
/**************************************************************************\
* Copyright (c) Kongsberg Oil & Gas Technologies AS
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\**************************************************************************/
#include <cstdio>
#include <Inventor/SbBasic.h>
#include <Inventor/SbVec3d.h>
class SbBox3f;
class SbDPLine;
class SbDPMatrix;
class SbPlane;
class SbDPRotation;
class SbVec2d;
class SbViewVolume;
class COIN_DLL_API SbDPViewVolume {
public:
enum ProjectionType { ORTHOGRAPHIC = 0, PERSPECTIVE = 1 };
public:
SbDPViewVolume(void);
~SbDPViewVolume(void);
void getMatrices(SbDPMatrix& affine, SbDPMatrix& proj) const;
SbDPMatrix getMatrix(void) const;
SbDPMatrix getCameraSpaceMatrix(void) const;
void projectPointToLine(const SbVec2d& pt, SbDPLine& line) const;
void projectPointToLine(const SbVec2d& pt,
SbVec3d& line0, SbVec3d& line1) const;
void projectToScreen(const SbVec3d& src, SbVec3d& dst) const;
SbPlane getPlane(const double distFromEye) const;
SbVec3d getSightPoint(const double distFromEye) const;
SbVec3d getPlanePoint(const double distFromEye,
const SbVec2d& normPoint) const;
SbDPRotation getAlignRotation(SbBool rightAngleOnly = FALSE) const;
double getWorldToScreenScale(const SbVec3d& worldCenter,
double normRadius) const;
SbVec2d projectBox(const SbBox3f& box) const;
SbDPViewVolume narrow(double left, double bottom,
double right, double top) const;
SbDPViewVolume narrow(const SbBox3f& box) const;
void ortho(double left, double right,
double bottom, double top,
double nearval, double farval);
void perspective(double fovy, double aspect,
double nearval, double farval);
void frustum(double left, double right,
double bottom, double top,
double nearval, double farval);
void rotateCamera(const SbDPRotation& q);
void translateCamera(const SbVec3d& v);
SbVec3d zVector(void) const;
SbDPViewVolume zNarrow(double nearval, double farval) const;
void scale(double factor);
void scaleWidth(double ratio);
void scaleHeight(double ratio);
ProjectionType getProjectionType(void) const;
const SbVec3d& getProjectionPoint(void) const;
const SbVec3d& getProjectionDirection(void) const;
double getNearDist(void) const;
double getWidth(void) const;
double getHeight(void) const;
double getDepth(void) const;
void print(FILE * fp) const;
void getViewVolumePlanes(SbPlane planes[6]) const;
void transform(const SbDPMatrix &matrix);
SbVec3d getViewUp(void) const;
void copyValues(SbViewVolume & vv);
private:
ProjectionType type;
SbVec3d projPoint;
SbVec3d projDir;
double nearDist;
double nearToFar;
SbVec3d llf;
SbVec3d lrf;
SbVec3d ulf;
void getPlaneRectangle(const double depth, SbVec3d & lowerleft,
SbVec3d & lowerright, SbVec3d & upperleft,
SbVec3d & upperright) const;
};
#endif // !COIN_SBDPVIEWVOLUME_H
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