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223 lines
7.5 KiB
C++
223 lines
7.5 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef NL_PLANE_BASIS_MAKER_H
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#define NL_PLANE_BASIS_MAKER_H
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#include "nel/misc/types_nl.h"
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#include "nel/3d/ps_attrib_maker_template.h"
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#include "nel/3d/ps_attrib_maker_bin_op.h"
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#include "nel/3d/ps_plane_basis.h"
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#include "nel/misc/fast_floor.h"
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#include "nel/misc/object_vector.h"
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namespace NL3D {
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template <>
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inline const char *CPSAttribMaker<CPlaneBasis>::getType() { return "CPlaneBasis";}
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/** these are some attribute makers for plane_basis
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* This is a plane basis class. It just blend between 2 plane by linearly interpolating the normal
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* (non sampled version)
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*/
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class CPSPlaneBasisBlender : public CPSValueBlender<CPlaneBasis>
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{
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public:
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NLMISC_DECLARE_CLASS(CPSPlaneBasisBlender);
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CPSPlaneBasisBlender(const CPlaneBasis &startBasis = CPlaneBasis(NLMISC::CVector::I), const CPlaneBasis &endBasis = CPlaneBasis(NLMISC::CVector::J), float nbCycles = 1.0f) : CPSValueBlender<CPlaneBasis>(nbCycles)
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{
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_F.setValues(startBasis, endBasis);
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}
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CPSAttribMakerBase *clone() const { return new CPSPlaneBasisBlender(*this); }
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};
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/// This is a PlaneBasis gradient class
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class CPSPlaneBasisGradient : public CPSValueGradient<CPlaneBasis>
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{
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public:
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NLMISC_DECLARE_CLASS(CPSPlaneBasisGradient);
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/**
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* Construct the value gradient blender by passing a pointer to a float table.
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* \param nbStages The result is sampled into a table by linearly interpolating values. This give the number of step between each value
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* \param nbCycles : The nb of time the pattern is repeated during particle life. see ps_attrib_maker.h
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*/
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CPSPlaneBasisGradient(const CPlaneBasis *basisTab = CPSPlaneBasisGradient::DefaultPlaneBasisTab
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, uint32 nbValues = 2, uint32 nbStages = 16, float nbCycles = 1.0f) : CPSValueGradient<CPlaneBasis>(nbCycles)
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{
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_F.setValues(basisTab, nbValues, nbStages);
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}
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CPSAttribMakerBase *clone() const { return new CPSPlaneBasisGradient(*this); }
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static CPlaneBasis DefaultPlaneBasisTab[];
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};
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/** this is a 'follow direction' plane basis maker
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* It set the plane basis to have its normal in the same direction than speed of the located
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* The cycle param has no effect o the direction
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*/
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class CPSPlaneBasisFollowSpeed : public CPSAttribMaker<CPlaneBasis>
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{
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public:
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enum TProjectionPlane { NoProjection = 0, XY, XZ, YZ, ProjectionPlaneLast /* enum counter */ };
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public:
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CPSPlaneBasisFollowSpeed() : CPSAttribMaker<CPlaneBasis>(1), _ProjectionPlane(NoProjection) {}
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/// compute one value of the attribute for the given index
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virtual CPlaneBasis get(CPSLocated *loc, uint32 index);
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virtual CPlaneBasis get(const CPSEmitterInfo &infos);
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/** Fill tab with an attribute by using the given stride. It fills numAttrib attributes.
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* \param loc the 'located' that hold the 'located bindable' that need an attribute to be filled
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* \param startIndex usually 0, it gives the index of the first element in the located
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*/
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virtual void *make(CPSLocated *loc,
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uint32 startIndex,
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void *tab,
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uint32 stride,
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uint32 numAttrib,
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bool enableNoCopy = false,
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uint32 srcStep = (1 << 16),
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bool forceClampEntry = false
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) const;
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/** The same as make, but it replicate each attribute 4 times, thus filling 4*numAttrib. Useful for facelookat and the like
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* \see make()
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*/
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virtual void make4(CPSLocated *loc,
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uint32 startIndex,
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void *tab,
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uint32 stride,
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uint32 numAttrib,
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uint32 srcStep = (1 << 16)
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) const;
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/** the same as make4, but with nbReplicate replication isntead of 4
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* \see make4
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*/
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virtual void makeN(CPSLocated *loc,
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uint32 startIndex,
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void *tab,
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uint32 stride,
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uint32 numAttrib,
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uint32 nbReplicate,
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uint32 srcStep = (1 << 16)
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) const;
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NLMISC_DECLARE_CLASS(CPSPlaneBasisFollowSpeed);
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/// serialization
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virtual void serial(NLMISC::IStream &f) throw(NLMISC::EStream)
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{
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// version 2 : added projection plane
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// version 1 : nothing to save here
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sint ver = f.serialVersion(2);
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if (ver >= 2)
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{
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f.serialEnum(_ProjectionPlane);
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}
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else
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{
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_ProjectionPlane = NoProjection;
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}
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}
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CPSAttribMakerBase *clone() const { return new CPSPlaneBasisFollowSpeed(*this); }
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//
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TProjectionPlane getProjectionPlane() const { return _ProjectionPlane; }
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void setProjectionPlane(TProjectionPlane pp) { _ProjectionPlane = pp; }
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private:
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TProjectionPlane _ProjectionPlane;
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};
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/** this memorize value by applying some function based on the emitter. For a particle's attribute, each particle has its
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* own value memorized
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* You MUST called setScheme (from CPSAttribMakerMemory) to tell how the value will be generated
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*/
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class CPSPlaneBasisMemory : public CPSAttribMakerMemory<CPlaneBasis>
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{
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public:
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CPSPlaneBasisMemory() { setDefaultValue(CPlaneBasis(NLMISC::CVector::K)); }
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NLMISC_DECLARE_CLASS(CPSPlaneBasisMemory);
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CPSAttribMakerBase *clone() const { return new CPSPlaneBasisMemory(*this); }
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};
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/** An attribute maker whose output if the result of a binary op on plane basis
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*
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*/
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class CPSPlaneBasisBinOp : public CPSAttribMakerBinOp<CPlaneBasis>
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{
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public:
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NLMISC_DECLARE_CLASS(CPSPlaneBasisBinOp);
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CPSAttribMakerBase *clone() const { return new CPSPlaneBasisBinOp(*this); }
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};
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// a functor object that produce basis by applying a rotation over a fixed axis
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class CSpinnerFunctor
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{
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public:
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CSpinnerFunctor();
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const CPlaneBasis &operator()(float date) const { return _PBTab[NLMISC::OptFastFloor(date * _NbSamples)]; }
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/// set the rotation axis
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void setAxis(const NLMISC::CVector &axis);
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/// get the rotation axis
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const NLMISC::CVector getAxis(void) const { return _Axis;}
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/// set the number of samples for the rotation
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void setNumSamples(uint32 nbSamples);
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/// get the number of samples for the rotation
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uint32 getNumSamples(void) const;
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/// serial this object
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void serial(NLMISC::IStream &f) throw(NLMISC::EStream);
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protected:
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CPSVector<CPlaneBasis>::V _PBTab;
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uint32 _NbSamples;
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NLMISC::CVector _Axis;
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/// update the samples tab
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void updateSamples(void);
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};
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/// this is a spinner : this compute a basis by applying a rotation over the given axis
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// nb : default init is done with nb samples = 0, so must set a number of samples that is > 0 before use
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class CPSBasisSpinner : public CPSAttribMakerT<CPlaneBasis, CSpinnerFunctor>
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{
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public:
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CPSBasisSpinner() : CPSAttribMakerT<CPlaneBasis, CSpinnerFunctor>(1) {}
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NLMISC_DECLARE_CLASS(CPSBasisSpinner);
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CPSAttribMakerBase *clone() const { return new CPSBasisSpinner(*this); }
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};
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} // NL3D
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#endif // NL_PLANE_BASIS_MAKER_H
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/* End of plane_basis_maker.h */
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