/* -*- C++ -*-
 * Copyright ©2005 Hugo Mills <hugo@carfax.org.uk>
 *
 * This software is distributed under the terms of the GNU GPL v3
 * For more information on the GPL, see the file COPYING or 
 * visit http://www.gnu.org/
 *
 * This software is distributed without warranty
 */

#ifndef DISPLAY_GEODESIC_H
#define DISPLAY_GEODESIC_H

#include "magellan/mdisplay.h"

class Display_Geodesic : public MDisplay
{
public:
	Display_Geodesic(
		Bitmap* bm,
		XfView* vp,
		XfMap* proj,
		XfOrbit* orb,
		XfSphere* sph,
		const dvec& _p0,
		const dvec& _p1,
		const ivec& col
		)
		: MDisplay(bm, vp, proj, orb, sph),
		  pt0(_p0), pt1(_p1),
		  colour(col)
	{ }

	virtual ~Display_Geodesic() { }

	virtual void plot(void);

private:
	dvec pt0, pt1;
	ivec colour;

	void midpoint_div(const dvec&, const dvec&,
					  bool, const ivec&,
					  bool, const ivec&, int) const;
	void split(dvec&, const dvec&, const dvec&) const;
};

#endif