/usr/include/snlCircularOffsetCurve.h is in libsnl-dev 0.2.1.svn.18-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 | // libSNL - Simple Nurbs Library
// Copyright Scott A.E. Lanham, Australia.
// ---------------------------------------
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
// *** NURBS Curve of Circular Offset from Base Curve ***
#ifndef SNL_CIRCULAROFFSET_CURVE_H
#define SNL_CIRCULAROFFSET_CURVE_H
#include "snlCurve.h"
#include "snlCurveBase.h"
#include "snlPoint.h"
class snlCircularOffsetCurve : public snlCurveBase
{
public:
snlCircularOffsetCurve();
virtual ~snlCircularOffsetCurve();
snlCircularOffsetCurve ( snlCircularOffsetCurve& copyFrom );
snlCircularOffsetCurve ( snlCurve* baseCurve, snlPoint* axisStart, snlPoint* axisEnd );
void refine ( double tolerance );
virtual void applyOffset ( snlPoint& point, snlPoint chordOffset, snlPoint angleOffset, snlPoint tangentOffset ) const;
int numOffsets();
void generateOffsets ( int type, double startOffset, double endOffset );
void offset ( int index, int type, double val, double weight = 1.0 );
double offset ( int index, int type );
void vertexNetParam ( snlVertexNet* vNet, double tolerance );
int size();
double maxParam() const;
double minParam() const;
enum offsetType
{
CHORD,
ANGLE,
TANGENT
};
// Abstract Implementation.
virtual void vertexNet ( snlVertexNet* vNet, double tolerance, bool parametric );
virtual snlPoint eval ( knot param ) const;
protected:
snlCurve* base_curve;
snlCurve* chord_offsetCurve; // Offsets that correspond to control points.
snlCurve* angle_offsetCurve;
snlCurve* tangent_offsetCurve;
snlPoint* axis_start;
snlPoint* axis_end;
};
#endif
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