GU/GU_PrimGroup.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * Produced by:
 *      Dale Ducharme   
 *      Side Effects Software Inc.
 *      20 Maud St.
 *      Toronto, Ontario,  M5V 2M5
 *      Canada
 *      416-366-4607
 *
 * NAME:        GU Library (C++)
 *
 * COMMENTS:
 *
 */

#ifndef __GU_PrimGroup_h__
#define __GU_PrimGroup_h__

#include "GU_API.h"
#include <GEO/GEO_Primitive.h>
#include "GU_Group.h"
#include "GU_Detail.h"

////////////////////////////////////////////////////////////////////////////
//
//  GU_PrimGroup - Creates a primitive group and selects specific 
//                 primitives to be members given a set of parameters
//
////////////////////////////////////////////////////////////////////////////


class GU_API GU_PrimGroup : public GU_Group
{
public:
    GU_PrimGroup(const char *n, GU_Detail *gdp, unsigned mask = 0xffffffff)
                                : GU_Group(gdp, mask) 
                                { newGroup(n); }    
    GU_PrimGroup(GU_Detail *gdp, GB_PrimitiveGroup *primGroup)
                                : GU_Group(gdp) 
                                { 
                                    theName = primGroup->getName(); 
                                    setGroup(primGroup);
                                }    
    virtual ~GU_PrimGroup();    

    virtual GB_Group    *newGroup(const char *name);  
    virtual GB_Group    *find(const char *name) const;     
    virtual void         destroy(void);

    // Goes through the methods below with the given parameters and creates
    // a group.
    void                 generateGroup(const GU_GroupParms &parms);

    // methods that allow you to select objects to be in the group 
    void                 range(int num, int, int, int, int, int) const;
    void                 pattern(char *pattern, int nelements, int) const;
    int                  boundingBox(float, float, float, float, float, float,
                                     float, float, float);
    void                 boundingSphere(float tx, float ty, float tz, 
                                        float radx, float rady, float radz) 
                                        const;
    void                 normal(UT_Vector3 &nml, float angle) const;
    void                 backface(const UT_Vector3 &eye) const;
    void                 degenerate(bool degenerate, bool zaf, bool doOpen,
                                    float tol) const;

    void                 nonplanar(float tol) const;

private:
    const char          *theName;       // the name of the group

    int                  primInsideSphere(GEO_Primitive *prim, float, float, 
                                          float, float, float, float) const;
};

#endif

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