/MapView/Map/RMTransform.h

//
//  RMTransform.h
//
// Copyright (c) 2008-2009, Route-Me Contributors
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice, this
//   list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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#import <Foundation/Foundation.h>
#import "RMFoundation.h"
#import "RMLatLong.h"

@class RMProjection;
@interface RMTransform : NSObject {
	RMProjection* source;
	RMProjection* destination;
	
	bool is_source_latlong;
	bool is_dest_latlong;
}

-(id) initFrom: (RMProjection*)source To: (RMProjection*)dest;

-(CLLocationCoordinate2D) projectForward: (CLLocationCoordinate2D)point AtZoom: (double)z;
-(CLLocationCoordinate2D) projectInverse: (CLLocationCoordinate2D)point AtZoom: (double)z;

@end


/*
 proj_transform(projection const& source, 
 projection const& dest);
 
 bool forward (double& x, double& y , double& z) const;
 bool backward (double& x, double& y , double& z) const;
 
*/