text: //
  //  RMCircle.h
  //
  // Copyright (c) 2008-2013, 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
  // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  // POSSIBILITY OF SUCH DAMAGE.
  
  #import <Foundation/Foundation.h>
  #import "RMFoundation.h"
  #import "RMMapLayer.h"
  
  @class RMMapView;
  
  /** An RMCircle is used to represent a perfect circle shape on a map view. An RMCircle changes visible size in response to map zooms in order to consistently represent coverage of the same geographic area. */
  @interface RMCircle : RMMapLayer
  {
  	RMMapView *mapView;
  	CAShapeLayer *shapeLayer;
  
  	UIColor *lineColor;
  	UIColor *fillColor;
  	CGFloat radiusInMeters;
  	CGFloat lineWidthInPixels;
  	BOOL scaleLineWidth;
  
  	CGMutablePathRef circlePath;
  }
  
  /** @name Accessing Drawing Properties */
  
  /** The circle's underlying shape layer. */
  @property (nonatomic, strong) CAShapeLayer *shapeLayer;
  
  /** The circle's line color. Defaults to black. */
  @property (nonatomic, strong) UIColor *lineColor;
  
  /** The circle's fill color. Defaults to blue with a 25% alpha value. */
  @property (nonatomic, strong) UIColor *fillColor;
  
  /** The fill pattern image of the circle. If set, the fillColor is set to `nil`. */
  @property (nonatomic, strong) UIImage *fillPatternImage;
  
  /** The radius of the circle in projected meters. Regardless of map zoom, the circle will change visible size to continously represent this radius on the map. */
  @property (nonatomic, assign) CGFloat radiusInMeters;
  
  /** The circle's line width. Defaults to 2.0. */
  @property (nonatomic, assign) CGFloat lineWidthInPixels;
  
  /** @name Creating Circle Objects */
  
  /** Initializes and returns a newly allocated RMCircle for the specified map view.
  *   @param aMapView The map view the shape should be drawn on.
  *   @param newRadiusInMeters The radius of the circle object in projected meters. Regardless of map zoom, the circle will change visible size to continously represent this radius on the map. */
  - (id)initWithView:(RMMapView *)aMapView radiusInMeters:(CGFloat)newRadiusInMeters;
  
  @end
  