//File: CadFeature.idl
//CAD Services V1.1

#ifndef __CADFEATURE_DEFINED
#define __CADFEATURE_DEFINED

#include "CadUtility.idl"
#include "CadFoundation.idl"

#pragma prefix "omg.org"

module CadFeature
{
  interface DesignFeature;
  interface Parameter;

  typedef sequence<Parameter>    ParameterSeq;
  typedef sequence<DesignFeature> DesignFeatureSeq;	

  interface Parameter
  {
    // data structures that capture the (parametric) features of ModelEntites
	
    readonly attribute boolean            is_read_only;
    readonly attribute boolean            is_independent;
    readonly attribute string             name;
	
    string   get_expression() raises (CadUtility::CadError);
    void set_expression(in string e_value) raises (CadUtility::CadError);
    // operations to allow an expression that may drive geometry

    CadUtility::EntityAttrib  get_value() raises (CadUtility::CadError);
    void set_value(in CadUtility::EntityAttrib value) raises (CadUtility::CadError);
    // operations providing access to parameter value
  };
	
  interface DesignFeature  :  CadFoundation::Entity  
  {
    // A distinct step or node in the parametric definition of a model.  
    // It drives the creation of a set of Brep entities in the fully-evaluated
    // form of the model.
	 
    boolean         is_suppressed() raises (CadUtility::CadError);
    void           set_suppression() raises (CadUtility::CadError);
    ParameterSeq get_parameter_set() raises (CadUtility::CadError);
  };
};
#endif