1 #ifndef COIN_SBDPVIEWVOLUME_H 2 #define COIN_SBDPVIEWVOLUME_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 <cstdio> 37 38 #include <Inventor/SbBasic.h> 39 #include <Inventor/SbVec3d.h> 40 41 class SbBox3f; 42 class SbDPLine; 43 class SbDPMatrix; 44 class SbPlane; 45 class SbDPRotation; 46 class SbVec2d; 47 class SbViewVolume; 48 49 class COIN_DLL_API SbDPViewVolume { 50 public: 51 enum ProjectionType { ORTHOGRAPHIC = 0, PERSPECTIVE = 1 }; 52 53 public: 54 SbDPViewVolume(void); 55 ~SbDPViewVolume(void); 56 void getMatrices(SbDPMatrix& affine, SbDPMatrix& proj) const; 57 SbDPMatrix getMatrix(void) const; 58 SbDPMatrix getCameraSpaceMatrix(void) const; 59 void projectPointToLine(const SbVec2d& pt, SbDPLine& line) const; 60 void projectPointToLine(const SbVec2d& pt, 61 SbVec3d& line0, SbVec3d& line1) const; 62 void projectToScreen(const SbVec3d& src, SbVec3d& dst) const; 63 SbPlane getPlane(const double distFromEye) const; 64 SbVec3d getSightPoint(const double distFromEye) const; 65 SbVec3d getPlanePoint(const double distFromEye, 66 const SbVec2d& normPoint) const; 67 SbDPRotation getAlignRotation(SbBool rightAngleOnly = FALSE) const; 68 double getWorldToScreenScale(const SbVec3d& worldCenter, 69 double normRadius) const; 70 SbVec2d projectBox(const SbBox3f& box) const; 71 SbDPViewVolume narrow(double left, double bottom, 72 double right, double top) const; 73 SbDPViewVolume narrow(const SbBox3f& box) const; 74 void ortho(double left, double right, 75 double bottom, double top, 76 double nearval, double farval); 77 void perspective(double fovy, double aspect, 78 double nearval, double farval); 79 void frustum(double left, double right, 80 double bottom, double top, 81 double nearval, double farval); 82 void rotateCamera(const SbDPRotation& q); 83 void translateCamera(const SbVec3d& v); 84 SbVec3d zVector(void) const; 85 SbDPViewVolume zNarrow(double nearval, double farval) const; 86 void scale(double factor); 87 void scaleWidth(double ratio); 88 void scaleHeight(double ratio); 89 ProjectionType getProjectionType(void) const; 90 const SbVec3d& getProjectionPoint(void) const; 91 const SbVec3d& getProjectionDirection(void) const; 92 double getNearDist(void) const; 93 double getWidth(void) const; 94 double getHeight(void) const; 95 double getDepth(void) const; 96 97 void print(FILE * fp) const; 98 void getViewVolumePlanes(SbPlane planes[6]) const; 99 void transform(const SbDPMatrix &matrix); 100 SbVec3d getViewUp(void) const; 101 102 void copyValues(SbViewVolume & vv); 103 104 private: 105 106 ProjectionType type; 107 SbVec3d projPoint; 108 SbVec3d projDir; 109 double nearDist; 110 double nearToFar; 111 SbVec3d llf; 112 SbVec3d lrf; 113 SbVec3d ulf; 114 115 void getPlaneRectangle(const double depth, SbVec3d & lowerleft, 116 SbVec3d & lowerright, SbVec3d & upperleft, 117 SbVec3d & upperright) const; 118 }; 119 120 #endif // !COIN_SBDPVIEWVOLUME_H 121