/MapView/Map/RMMercatorToScreenProjection.h
http://github.com/route-me/route-me · C Header · 94 lines · 36 code · 17 blank · 41 comment · 0 complexity · ad2a8da2073ba217febb023b02c64088 MD5 · raw file
- //
- // RMMercatorToScreenProjection.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
- // 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 <CoreGraphics/CoreGraphics.h>
- #import "RMFoundation.h"
- @class RMProjection;
- /// This is a stateful projection. As the screen moves around, so too do projections change.
- @interface RMMercatorToScreenProjection : NSObject
- {
- /// What the screen is currently looking at.
- RMProjectedPoint origin;
- /// The mercator -or-whatever- projection that the map is in.
- /// This projection move linearly with the screen.
- RMProjection *projection;
-
- /// Bounds of the screen in pixels
- /// \bug name is "screenBounds" but is probably the view, not the whole screen?
- CGRect screenBounds;
- /// \brief meters per pixel
- float metersPerPixel;
- }
- - (id) initFromProjection: (RMProjection*) projection ToScreenBounds: (CGRect)aScreenBounds;
- /// Deltas in screen coordinates.
- - (RMProjectedPoint)movePoint: (RMProjectedPoint)aPoint by:(CGSize) delta;
- /// Deltas in screen coordinates.
- - (RMProjectedRect)moveRect: (RMProjectedRect)aRect by:(CGSize) delta;
- /// pivot given in screen coordinates.
- - (RMProjectedPoint)zoomPoint: (RMProjectedPoint)aPoint byFactor: (float)factor near:(CGPoint) pivot;
- /// pivot given in screen coordinates.
- - (RMProjectedRect)zoomRect: (RMProjectedRect)aRect byFactor: (float)factor near:(CGPoint) pivot;
- /// Move the screen.
- - (void) moveScreenBy: (CGSize) delta;
- - (void) zoomScreenByFactor: (float) factor near:(CGPoint) aPoint;
- /// Project -> screen coordinates.
- - (CGPoint)projectXYPoint:(RMProjectedPoint)aPoint withMetersPerPixel:(float)aScale;
- /// Project -> screen coordinates.
- - (CGPoint) projectXYPoint: (RMProjectedPoint) aPoint;
- /// Project -> screen coordinates.
- - (CGRect) projectXYRect: (RMProjectedRect) aRect;
- - (RMProjectedPoint) projectScreenPointToXY: (CGPoint) aPoint;
- - (RMProjectedRect) projectScreenRectToXY: (CGRect) aRect;
- - (RMProjectedSize)projectScreenSizeToXY: (CGSize) aSize;
- - (RMProjectedPoint)projectScreenPointToXY: (CGPoint) aPixelPoint withMetersPerPixel:(float)aScale;
- - (RMProjectedRect) projectedBounds;
- - (void) setProjectedBounds: (RMProjectedRect) bounds;
- - (RMProjectedPoint) projectedCenter;
- - (void) setProjectedCenter: (RMProjectedPoint) aPoint;
- - (void) setScreenBounds:(CGRect)rect;
- - (CGRect) screenBounds;
- @property (assign, readwrite) float metersPerPixel;
- @property (assign, readwrite) RMProjectedPoint origin;
- @property (nonatomic,readonly) RMProjection *projection;
- -(void)deepCopy:(RMMercatorToScreenProjection *)copy;
- @end