Gabriele Cosmo
192 lines
5.6 KiB
C++
192 lines
5.6 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: SoCons.h,v 1.2 2004/06/14 09:27:36 gcosmo Exp $
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// GEANT4 tag $Name: geant4-07-00-cand-01 $
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//
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/*-----------------------------Hepvis----------------------------------------*/
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/* */
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/* Node: SoCons */
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/* Description: Represents the G4Cons Geant Geometry entity */
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/* Author: Joe Boudreau Nov 11 1996 */
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/* */
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/*---------------------------------------------------------------------------*/
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#ifndef HEPVis_SoCons_h
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#define HEPVis_SoCons_h
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#include <Inventor/fields/SoSFFloat.h>
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#include <Inventor/fields/SoSFNode.h>
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#include <Inventor/fields/SoSFBool.h>
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#include <Inventor/nodes/SoShape.h>
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class SoSFNode;
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//! SoCons - Inventor version of the G4Cons Geant Geometry entity
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/*!
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* Node: SoCons
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*
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* Description: The Inventor version of the G4Cons Geant Geometry entity
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*
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* Author: Joe Boudreau Nov 11 1996
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*
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* A G4Cons is, in the general case, a Phi segment of a cone, with half-length
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* fDz, inner and outer radii specified at -fDz and +fDz. The Phi segment is
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* described by a starting fSPhi angle, and the +fDPhi delta angle for the shape.
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* If the delta angle is >=2*M_PI, the shape is treated as continuous in Phi
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*
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* Member Data:
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*
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* fRmin1 inside radius at -fDz
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* fRmin2 inside radius at +fDz
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* fRmax1 outside radius at -fDz
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* fRmax2 outside radius at +fDz
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* fDz half length in z
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*
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* fSPhi starting angle of the segment in radians
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* fDPhi delta angle of the segment in radians
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*/
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#define SoCons Geant4_SoCons
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class SoCons:public SoShape {
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// The following is required:
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SO_NODE_HEADER(SoCons);
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public:
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//
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//! Inside radius at -fDz
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//
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SoSFFloat fRmin1;
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//
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//! Inside radius at +fDz
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//
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SoSFFloat fRmin2;
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//
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//! Outside radius at -fDz
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//
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SoSFFloat fRmax1;
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//
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//! Outside radius at +fDz
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//
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SoSFFloat fRmax2;
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//
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//! Half-length along Z
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//
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SoSFFloat fDz;
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//
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//! Starting angle, in radians
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//
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SoSFFloat fSPhi;
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//
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//! Delta-angle, in radians
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//
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SoSFFloat fDPhi;
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//
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//! An Inventor option - slightly better render, worse performance
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//
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SoSFBool smoothDraw;
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//
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//! Alternate rep required - for use by users without HEPVis shared objects
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//
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SoSFNode alternateRep;
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//
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//! Constructor, required
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//
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SoCons();
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//
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//! Class Initializer, required
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//
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static void initClass();
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//
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//! Generate AlternateRep, required. Generating an alternate representation
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//! must be done upon users request. It allows an Inventor program to read
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//! back the file without requiring *this* code to be dynamically linked.
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//! If the users expects that *this* code will be dynamically linked, he
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//! need not invoke this method.
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//
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virtual void generateAlternateRep();
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//
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//! We better be able to clear it, too!
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//
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virtual void clearAlternateRep();
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protected:
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//
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//! compute bounding Box, required
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//
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virtual void computeBBox(SoAction *action, SbBox3f &box, SbVec3f ¢er );
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//
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//! Generate Primitives, required
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//
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virtual void generatePrimitives(SoAction *action);
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//
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//! GetChildList, required whenever the class has hidden children
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//
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virtual SoChildList *getChildren() const;
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protected:
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//
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//! Destructor, required
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//
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virtual ~SoCons();
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private:
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//
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//! Generate Children. Used to create the hidden children. Required whenever
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//! the node has hidden children.
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//
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void generateChildren();
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//
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//! Used to modify hidden children when a data field is changed. Required
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//! whenever the class has hidden children.
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//
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void updateChildren();
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//
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//! ChildList. Required whenever the class has hidden children.
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//
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SoChildList *children;
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//
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//! help with trigonometry. increments sines an cosines by an angle.
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//
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void inc(double & sinPhi, double & cosPhi, double sinDeltaPhi, double cosDeltaPhi) const {
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double oldSin=sinPhi,oldCos=cosPhi;
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sinPhi = oldSin*cosDeltaPhi+oldCos*sinDeltaPhi;
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cosPhi = oldCos*cosDeltaPhi-oldSin*sinDeltaPhi;
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}
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};
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#endif
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