95 lines
2.7 KiB
C++
95 lines
2.7 KiB
C++
// Filename: nurbsCurveInterface.h
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// Created by: drose (02Mar01)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://www.panda3d.org/license.txt .
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//
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// To contact the maintainers of this program write to
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// panda3d@yahoogroups.com .
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//
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////////////////////////////////////////////////////////////////////
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#ifndef NURBSCURVEINTERFACE_H
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#define NURBSCURVEINTERFACE_H
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#include <pandabase.h>
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#include <luse.h>
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#include <filename.h>
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class ParametricCurve;
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////////////////////////////////////////////////////////////////////
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// Class : NurbsCurveInterface
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// Description : This abstract class defines the interface only for a
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// Nurbs-style curve, with knots and coordinates in
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// homogeneous space.
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//
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// The NurbsCurve class inherits both from this and from
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// ParametricCurve.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA NurbsCurveInterface {
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PUBLISHED:
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virtual void set_order(int order)=0;
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virtual int get_order() const=0;
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virtual int get_num_cvs() const=0;
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virtual int get_num_knots() const=0;
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virtual bool insert_cv(float t)=0;
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INLINE int append_cv(float x, float y, float z);
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INLINE int append_cv(const LVecBase3f &v);
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INLINE int append_cv(const LVecBase4f &v);
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virtual bool remove_cv(int n)=0;
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virtual void remove_all_cvs()=0;
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INLINE bool set_cv_point(int n, float x, float y, float z);
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INLINE bool set_cv_point(int n, const LVecBase3f &v);
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INLINE LVecBase3f get_cv_point(int n) const;
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bool set_cv_weight(int n, float w);
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INLINE float get_cv_weight(int n) const;
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virtual bool set_cv(int n, const LVecBase4f &v)=0;
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virtual LVecBase4f get_cv(int n) const=0;
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virtual bool set_knot(int n, float t)=0;
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virtual float get_knot(int n) const=0;
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void write_cv(ostream &out, int n) const;
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protected:
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virtual int append_cv_impl(const LVecBase4f &v)=0;
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void write(ostream &out, int indent_level) const;
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bool format_egg(ostream &out, const string &name,
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const string &curve_type, int indent_level) const;
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bool convert_to_nurbs(ParametricCurve *nc) const;
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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register_type(_type_handle, "NurbsCurveInterface");
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}
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private:
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static TypeHandle _type_handle;
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};
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#include "nurbsCurveInterface.I"
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#endif
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