Open Inventor Release 2024.2.0
 
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SoNurbsCurve.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5 * UNPUBLISHED -- Rights reserved under the copyright laws of the United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 : Dave Immel (MMM yyyy)
25**=======================================================================*/
26/*=======================================================================
27 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.), ***
28 *** AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT. ***
29 *** ***
30 *** REPRODUCTION, DISCLOSURE, OR USE, IN WHOLE OR IN PART, OTHER THAN AS ***
31 *** SPECIFIED IN THE LICENSE ARE NOT TO BE UNDERTAKEN EXCEPT WITH PRIOR ***
32 *** WRITTEN AUTHORIZATION OF FEI S.A.S. ***
33 *** ***
34 *** RESTRICTED RIGHTS LEGEND ***
35 *** USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS ***
36 *** WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN ***
37 *** SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT ***
38 *** CLAUSE AT FAR 52.227-19 OR SUBPARAGRAPH (C)(1)(II) OF THE RIGHTS IN ***
39 *** TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013. ***
40 *** ***
41 *** COPYRIGHT (C) 1996-2014 BY FEI S.A.S, ***
42 *** BORDEAUX, FRANCE ***
43 *** ALL RIGHTS RESERVED ***
44**=======================================================================*/
45/*=======================================================================
46** Modified by : VSG (MMM YYYY)
47**=======================================================================*/
48
49
50#ifndef _SO_NURBS_CURVE_
51#define _SO_NURBS_CURVE_
52
53#include <Inventor/fields/SoMFFloat.h>
54#include <Inventor/fields/SoSFInt32.h>
55#include <Inventor/nodes/SoShape.h>
56
57SO_PIMPL_PUBLIC_DECLARATION(SoNurbsCurve)
58
59
60//
61// Class: SoNurbsCurve
62//
63// NURBS curve. The curve consists of a knot vector and order for
64// the U parametric directions. The control points for the curve
65// are obtained from the current coordinates.
66//
68
128class SoNurbsCurve : public SoShape {
129
130 SO_NODE_HEADER(SoNurbsCurve);
131 SO_PIMPL_PUBLIC_HEADER(SoNurbsCurve)
132
133 public:
138
143
148
149 private:
150 virtual void GLRender(SoGLRenderAction *action);
151 virtual void rayPick(SoRayPickAction *action);
152 virtual void getPrimitiveCount(SoGetPrimitiveCountAction *action);
153
154 // Redefine this to tell open caches that they contain lines
155 virtual void getBoundingBox(SoGetBoundingBoxAction *action);
156
157 // Computes bounding box of curve
158 virtual void computeBBox(SoAction *action, SbBox3f &box,
159 SbVec3f &center);
160
161 private:
162 static void initClass();
163 static void exitClass();
164
165 private:
166 // Generates triangles representing a sphere
167 virtual void generatePrimitives(SoAction *action);
168
170
171};
172
173#endif /* _SO_NURBS_CURVE_ */
174
3D box class.
Definition SbBox.h:649
3D vector class.
Definition SbVec.h:932
Abstract base class for all actions.
Definition SoAction.h:132
Renders a scene graph using Open Inventor's Render Engine.
Computes bounding box of a scene.
<a href="IconLegend.html"><img src="extTGS.gif" alt="VSG extension" border="0"></a> Counts number of...
Multiple-value field containing any number of floating point values.
Definition SoMFFloat.h:90
NURBS curve shape node.
SoSFInt32 numControlPoints
Number of control points.
SoNurbsCurve()
Creates a NURBS curve node with default settings.
SoMFFloat knotVector
The knot vector.
Intersects objects with a ray cast into scene.
Field containing a int32_t integer.
Definition SoSFInt32.h:80
Abstract base class for all shape nodes.
Definition SoShape.h:116