#ifndef HGEOBASICSHAPES_H
#define HGEOBASICSHAPES_H

//
// baseclass for all shapes
//
// The routines readPoints(...) read 8 points (x,y,z) from database ore file and
// are used to read a BOX, TRAP or TRD1. (These shapes have 8 corners in the
// technical drawings. The enumeration starts at the lower left corner of the
// bottom plane and reads the points in clockwise direction.) The values are
// stored in the vector vol of class HGeoParam.
// All other shapes have their own routines readPoints(...) both for reading
// from file or database. 
//
// Every derived shapeclass have their own routines calcShape(...) and
// posShape(...).
// In the function calcShape(...) of the derived classes the shape-parameters for 
// Geant are calculated and stored in the vector volPar of class HGeoShapePar.
// In the function posShape(...) of the derived classes different functions are
// called position a volume in a mothers depending on their shapes. These
// informations are stored in the class HGeoShapePar.
//

#include "hgeoparam.h"
#include "hgeoshapepar.h"
#include "hgeoinfo.h"
#include "hadexitcodes.h"
#include <math.h>
#include "hmathfnt.h"

#if defined (WITHGEANT) || (WITHFORTRAN)
#include "cfortran.h"
#endif
#ifdef WITHGEANT
#include "geant321.h"
#endif

class HGeoBasicShapes {
public:
	HGeoBasicShapes(){}
	~HGeoBasicShapes(){}

	// reads 8 points (x,y,z) from database
	virtual int readPoints(HGeoInfo & geoInfo, HString & volName,
	                       HGeoParam & ele);

	// reads 8 points (x,y,z) from file
	virtual int readPoints(HGeoInfo & geoInfo, HGeoParam & ele);

	// purely virtual function to calculate shape-parameters for Geant
	virtual void calcShape(HGeoParam & ele, HGeoShapePar & shapePar){};

	// purely virtual function to call different functions depending on the
	// the shapes of the volume (ele) and its mother (mo). In these functions
	// the position of the volume inside its mother is calculated.
	virtual int posShape(HGeoParam & ele, HGeoParam & mo,
	                     HGeoShapePar & shapePar) {
		return HFAILURE;
	}
};

#endif