Beginnings of multiple orientation support. Added auto-rotation of vi…

…ews based on a delegate callback. Made the center coordinate more robust for multiple orientations.

ARKitDemo/ARKitDemo.xcodeproj/project.pbxproj

@@ -23,6 +23,7 @@
 		1171B3DD106EE83500CC3630 /* ARGeoCoordinate.m in Sources */ = {isa = PBXBuildFile; fileRef = CE169F571025704E00556F8F /* ARGeoCoordinate.m */; };
 		1171B3DE106EE83500CC3630 /* ARGeoViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 11609B0A1026014F00A964C8 /* ARGeoViewController.m */; };
 		1171B42C106EEB3600CC3630 /* LogicTests.m in Sources */ = {isa = PBXBuildFile; fileRef = 1171B42B106EEB3600CC3630 /* LogicTests.m */; };
+		117BCE9210829C1E007A27AB /* ARVector.m in Sources */ = {isa = PBXBuildFile; fileRef = 117BCE9110829C1E007A27AB /* ARVector.m */; };
 		1D3623260D0F684500981E51 /* ARKitDemoAppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 1D3623250D0F684500981E51 /* ARKitDemoAppDelegate.m */; };
 		1D60589B0D05DD56006BFB54 /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 29B97316FDCFA39411CA2CEA /* main.m */; };
 		1D60589F0D05DD5A006BFB54 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 1D30AB110D05D00D00671497 /* Foundation.framework */; };
@@ -56,6 +57,8 @@
 		1171B42A106EEB3600CC3630 /* LogicTests.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = LogicTests.h; sourceTree = "<group>"; };
 		1171B42B106EEB3600CC3630 /* LogicTests.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = LogicTests.m; sourceTree = "<group>"; };
 		1171B440106EEBDB00CC3630 /* UnitTests-Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = "UnitTests-Info.plist"; sourceTree = "<group>"; };
+		117BCE9010829C1E007A27AB /* ARVector.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ARVector.h; sourceTree = "<group>"; };
+		117BCE9110829C1E007A27AB /* ARVector.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ARVector.m; sourceTree = "<group>"; };
 		1D30AB110D05D00D00671497 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
 		1D3623240D0F684500981E51 /* ARKitDemoAppDelegate.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ARKitDemoAppDelegate.h; sourceTree = "<group>"; };
 		1D3623250D0F684500981E51 /* ARKitDemoAppDelegate.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ARKitDemoAppDelegate.m; sourceTree = "<group>"; };
@@ -122,6 +125,8 @@
 			children = (
 				112543A81024DE590086106E /* ARCoordinate.h */,
 				112543A91024DE590086106E /* ARCoordinate.m */,
+				117BCE9010829C1E007A27AB /* ARVector.h */,
+				117BCE9110829C1E007A27AB /* ARVector.m */,
 				111A142B1024C8A6002D39A1 /* ARViewController.h */,
 				111A142A1024C8A6002D39A1 /* ARViewController.m */,
 				CE169F561025704E00556F8F /* ARGeoCoordinate.h */,
@@ -291,6 +296,7 @@
 				1171B3DD106EE83500CC3630 /* ARGeoCoordinate.m in Sources */,
 				1171B3DE106EE83500CC3630 /* ARGeoViewController.m in Sources */,
 				1171B42C106EEB3600CC3630 /* LogicTests.m in Sources */,
+				117BCE9210829C1E007A27AB /* ARVector.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

ARKitDemo/Classes/ARKitDemoAppDelegate.h

@@ -15,6 +15,7 @@
 }
 
 - (UIView *)viewForCoordinate:(ARCoordinate *)coordinate;
+- (BOOL)shouldAutorotateViewsToInterfaceOrientation:(UIInterfaceOrientation)possibleOrientation;
 
 @property (nonatomic, retain) IBOutlet UIWindow *window;
 

ARKitDemo/Classes/ARKitDemoAppDelegate.m

@@ -246,7 +246,7 @@ - (UIView *)viewForCoordinate:(ARCoordinate *)coordinate {
 	CGRect theFrame = CGRectMake(0, 0, BOX_WIDTH, BOX_HEIGHT);
 	UIView *tempView = [[UIView alloc] initWithFrame:theFrame];
 
-	//tempView.backgroundColor = [UIColor colorWithWhite:.5 alpha:.3];
+	tempView.backgroundColor = [UIColor colorWithWhite:.5 alpha:.3];
 
 	UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, BOX_WIDTH, 20.0)];
 	titleLabel.backgroundColor = [UIColor colorWithWhite:.3 alpha:.8];
@@ -270,6 +270,10 @@ - (UIView *)viewForCoordinate:(ARCoordinate *)coordinate {
 	return [tempView autorelease];
 }
 
+- (BOOL)shouldAutorotateViewsToInterfaceOrientation:(UIInterfaceOrientation)possibleOrientation {
+	return (possibleOrientation != UIInterfaceOrientationPortraitUpsideDown);
+}
+
 
 - (void)dealloc {
 

ARKitDemo/Classes/ARVector.h

@@ -0,0 +1,24 @@
+//
+//  ARVector.h
+//  ARKitDemo
+//
+//  Created by Zac White on 10/11/09.
+//  Copyright 2009 Zac White. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+
+@interface ARVector : NSObject {
+	double x;
+	double y;
+	double z;
+}
+
+@property double x;
+@property double y;
+@property double z;
+
+- (ARVector *)dotProductWithVector:(ARVector *)vector;
+
+@end

ARKitDemo/Classes/ARVector.m

@@ -0,0 +1,23 @@
+//
+//  ARVector.m
+//  ARKitDemo
+//
+//  Created by Zac White on 10/11/09.
+//  Copyright 2009 Zac White. All rights reserved.
+//
+
+#import "ARVector.h"
+
+@implementation ARVector
+
+@synthesize x, y, z;
+
+- (double)dotProductWithVector:(ARVector *)vector {
+	return vector.x * self.x + vector.y * self.y + vector.z * self.z;
+}
+
+- (ARVector *)crossProductWithVector:(ARVector *)vector {
+
+}
+
+@end

ARKitDemo/Classes/ARViewController.h

@@ -16,6 +16,9 @@
 
 - (UIView *)viewForCoordinate:(ARCoordinate *)coordinate;
 
+@optional
+- (BOOL)shouldAutorotateViewsToInterfaceOrientation:(UIInterfaceOrientation)possibleOrientation;
+
 @end
 
 
@@ -35,7 +38,17 @@
 	double maximumDistance;
 	double minimumScaleFactor;
 
+	UIInterfaceOrientation viewInterfaceOrientation;
+
 @private
+	double _latestHeading;
+	UIAccelerationValue _latestXAcceleration;
+	UIAccelerationValue _latestYAcceleration;
+	UIAccelerationValue _latestZAcceleration;
+
+	//in radians.
+	double _viewportRotation;
+
 	BOOL ar_debugMode;
 
 	UIView *ar_overlayView;
@@ -54,6 +67,8 @@
 @property double maximumDistance;
 @property double minimumScaleFactor;
 
+@property (readonly) UIInterfaceOrientation viewInterfaceOrientation;
+
 //adding coordinates to the underlying data model.
 - (void)addCoordinate:(ARCoordinate *)coordinate;
 - (void)addCoordinate:(ARCoordinate *)coordinate animated:(BOOL)animated;
@@ -72,9 +87,9 @@
 - (void)startListening;
 - (void)updateLocations;
 
-- (CGPoint)pointInView:(UIView *)realityView forCoordinate:(ARCoordinate *)coordinate;
+- (CGPoint)pointInView:(UIView *)realityView withView:(UIView *)viewToDraw forCoordinate:(ARCoordinate *)coordinate;
 
-- (BOOL)viewportContainsCoordinate:(ARCoordinate *)coordinate;
+- (BOOL)viewportContainsView:(UIView *)viewToDraw forCoordinate:(ARCoordinate *)coordinate;
 
 @property (nonatomic, retain) UIImagePickerController *cameraController;