00001 /*=======================================================================
00002  * Copyright 1991-1996, Silicon Graphics, Inc.
00003  * ALL RIGHTS RESERVED
00004  *
00005  * UNPUBLISHED -- Rights reserved under the copyright laws of the United
00006  * States.   Use of a copyright notice is precautionary only and does not
00007  * imply publication or disclosure.
00008  *
00009  * U.S. GOVERNMENT RESTRICTED RIGHTS LEGEND:
00010  * Use, duplication or disclosure by the Government is subject to restrictions
00011  * as set forth in FAR 52.227.19(c)(2) or subparagraph (c)(1)(ii) of the Rights
00012  * in Technical Data and Computer Software clause at DFARS 252.227-7013 and/or
00013  * in similar or successor clauses in the FAR, or the DOD or NASA FAR
00014  * Supplement.  Contractor/manufacturer is Silicon Graphics, Inc.,
00015  * 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311.
00016  *
00017  * THE CONTENT OF THIS WORK CONTAINS CONFIDENTIAL AND PROPRIETARY
00018  * INFORMATION OF SILICON GRAPHICS, INC. ANY DUPLICATION, MODIFICATION,
00019  * DISTRIBUTION, OR DISCLOSURE IN ANY FORM, IN WHOLE, OR IN PART, IS STRICTLY
00020  * PROHIBITED WITHOUT THE PRIOR EXPRESS WRITTEN PERMISSION OF SILICON
00021  * GRAPHICS, INC.
00022 **=======================================================================*/
00023 /*=======================================================================
00024 ** Author      : Thad Beier (MMM yyyy)
00025 ** Modified by : Dave Immel (MMM yyyy)
00026 ** Modified by : Paul Strauss (MMM yyyy)
00027 **=======================================================================*/
00028 /*=======================================================================
00029  *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.),            ***
00030  ***              AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT.                     ***
00031  ***                                                                                ***
00032  ***  REPRODUCTION, DISCLOSURE,  OR USE,  IN WHOLE OR IN PART,  OTHER THAN AS       ***
00033  ***  SPECIFIED  IN THE LICENSE ARE  NOT TO BE  UNDERTAKEN  EXCEPT WITH PRIOR       ***
00034  ***  WRITTEN AUTHORIZATION OF FEI S.A.S.                                           ***
00035  ***                                                                                ***
00036  ***                        RESTRICTED RIGHTS LEGEND                                ***
00037  ***  USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS      ***
00038  ***  WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN      ***
00039  ***  SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT      ***
00040  ***  CLAUSE  AT FAR 52.227-19  OR SUBPARAGRAPH  (C)(1)(II)  OF  THE RIGHTS IN      ***
00041  ***  TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013.             ***
00042  ***                                                                                ***
00043  ***                   COPYRIGHT (C) 1996-2020 BY FEI S.A.S,                        ***
00044  ***                        BORDEAUX, FRANCE                                        ***
00045  ***                      ALL RIGHTS RESERVED                                       ***
00046 **=======================================================================*/
00047 /*=======================================================================
00048 ** Modified by : VSG (MMM YYYY)
00049 **=======================================================================*/
00050 
00051 
00052 #ifndef  _SO_PROFILE_
00053 #define  _SO_PROFILE_
00054 
00055 #include <Inventor/SbLinear.h>
00056 #include <Inventor/elements/SoProfileElement.h>
00057 #include <Inventor/fields/SoMFInt32.h>
00058 #include <Inventor/fields/SoSFEnum.h>
00059 #include <Inventor/nodes/SoNode.h>
00060 
00062 //
00063 //  Class: SoProfile
00064 //
00065 //  Abstract base class of 2D profiles.  These profiles are used as trim
00066 //  curves for nurbs and bevels for 3D text.  The two (so far) subclasses
00067 //  are SoLinearProfile and SoNurbsProfile
00068 //
00070 
00117 class  SoProfile : public SoNode{
00118 
00119   SO_NODE_ABSTRACT_HEADER(SoProfile);
00120 
00121  public:
00123   enum Profile {
00127     START_FIRST    = SoProfileElement::START_FIRST,
00131     START_NEW      = SoProfileElement::START_NEW,
00135     ADD_TO_CURRENT = SoProfileElement::ADD_TO_CURRENT
00136   };
00137 
00138   // Fields
00143   SoMFInt32           index;
00148   SoSFEnum            linkage;
00149 
00150  private:
00151   // These action methods are implemented for profiles. Each of them
00152   // just adds the profile to the current state.
00153   virtual void        doAction(SoAction *action);
00154   virtual void        callback(SoCallbackAction *action);
00155   virtual void        GLRender(SoGLRenderAction *action);
00156   virtual void        getBoundingBox(SoGetBoundingBoxAction *action);
00157   virtual void        pick(SoPickAction *action);
00158   virtual void        getPrimitiveCount(SoGetPrimitiveCountAction *action);
00159 
00160   // Returns a profile as a trim curve. floatsPerVec will be either 2 or 3 depending
00161   // on whether the curve is non-rational or rational.
00162   virtual void        getTrimCurve(SoState *state, int32_t &numPoints,
00163                                    float *&points, int &floatsPerVec,
00164                                    int32_t &numKnots, float *&knotVector) = 0;
00165 
00166   // Returns vertices approximating the profile
00167   virtual void        getVertices(SoState *state, int32_t &nVertices,
00168                                   SbVec2f *&vertices) = 0;
00169 
00170  private:
00171   static void         initClass();
00172   static void         exitClass();
00173 
00174  private:
00175   SoProfile();
00176 
00177   virtual ~SoProfile();
00178 };
00179 
00180 #endif /* _SO_PROFILE_ */
00181 
00182
Inventor/nodes/SoProfile.h
