/*=========================================================================

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkEarthSource.h,v $
  Language:  C++
  Date:      $Date: 2002/01/22 15:30:28 $
  Version:   $Revision: 1.25 $

  Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen 
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
// .NAME vtkEarthSource - create the continents of the Earth as a sphere
// .SECTION Description
// vtkEarthSource creates a spherical rendering of the geographical shapes
// of the major continents of the earth. The OnRatio determines
// how much of the data is actually used. The radius defines the radius
// of the sphere at which the continents are placed. Obtains data from
// an imbedded array of coordinates.

#ifndef __vtkEarthSource_h
#define __vtkEarthSource_h

#include "vtkPolyDataSource.h"

class VTK_HYBRID_EXPORT vtkEarthSource : public vtkPolyDataSource 
{
public:
  static vtkEarthSource *New();
  vtkTypeRevisionMacro(vtkEarthSource,vtkPolyDataSource);
  void PrintSelf(ostream& os, vtkIndent indent);

  // Description:
  // Set radius of earth.
  vtkSetClampMacro(Radius,float,0.0,VTK_LARGE_FLOAT);
  vtkGetMacro(Radius,float);

  // Description:
  // Turn on every nth entity. This controls how much detail the model
  // will have. The maximum ratio is sixteen. (The smaller OnRatio, the more
  // detail there is.)
  vtkSetClampMacro(OnRatio,int,1,16);
  vtkGetMacro(OnRatio,int);

  // Description:
  // Turn on/off drawing continents as filled polygons or as wireframe outlines.
  // Warning: some graphics systems will have trouble with the very large, concave 
  // filled polygons. Recommend you use OutlienOn (i.e., disable filled polygons) 
  // for now.
  vtkSetMacro(Outline,int);
  vtkGetMacro(Outline,int);
  vtkBooleanMacro(Outline,int);

protected:
  vtkEarthSource();
  ~vtkEarthSource() {};

  void Execute();

  float Radius;
  int OnRatio;
  int Outline;
private:
  vtkEarthSource(const vtkEarthSource&);  // Not implemented.
  void operator=(const vtkEarthSource&);  // Not implemented.
};

#endif










