copied Footprint

ios8/Footprint/Footprint.sln

@@ -0,0 +1,32 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2012
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Footprint", "Footprint\Footprint.csproj", "{F8FE1176-70FB-428C-A099-2032DC7C585C}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|iPhoneSimulator = Debug|iPhoneSimulator
+		Release|iPhoneSimulator = Release|iPhoneSimulator
+		Debug|iPhone = Debug|iPhone
+		Release|iPhone = Release|iPhone
+		Ad-Hoc|iPhone = Ad-Hoc|iPhone
+		AppStore|iPhone = AppStore|iPhone
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{F8FE1176-70FB-428C-A099-2032DC7C585C}.Ad-Hoc|iPhone.ActiveCfg = Ad-Hoc|iPhone
+		{F8FE1176-70FB-428C-A099-2032DC7C585C}.Ad-Hoc|iPhone.Build.0 = Ad-Hoc|iPhone
+		{F8FE1176-70FB-428C-A099-2032DC7C585C}.AppStore|iPhone.ActiveCfg = AppStore|iPhone
+		{F8FE1176-70FB-428C-A099-2032DC7C585C}.AppStore|iPhone.Build.0 = AppStore|iPhone
+		{F8FE1176-70FB-428C-A099-2032DC7C585C}.Debug|iPhone.ActiveCfg = Debug|iPhone
+		{F8FE1176-70FB-428C-A099-2032DC7C585C}.Debug|iPhone.Build.0 = Debug|iPhone
+		{F8FE1176-70FB-428C-A099-2032DC7C585C}.Debug|iPhoneSimulator.ActiveCfg = Debug|iPhoneSimulator
+		{F8FE1176-70FB-428C-A099-2032DC7C585C}.Debug|iPhoneSimulator.Build.0 = Debug|iPhoneSimulator
+		{F8FE1176-70FB-428C-A099-2032DC7C585C}.Release|iPhone.ActiveCfg = Release|iPhone
+		{F8FE1176-70FB-428C-A099-2032DC7C585C}.Release|iPhone.Build.0 = Release|iPhone
+		{F8FE1176-70FB-428C-A099-2032DC7C585C}.Release|iPhoneSimulator.ActiveCfg = Release|iPhoneSimulator
+		{F8FE1176-70FB-428C-A099-2032DC7C585C}.Release|iPhoneSimulator.Build.0 = Release|iPhoneSimulator
+	EndGlobalSection
+	GlobalSection(MonoDevelopProperties) = preSolution
+		StartupItem = Footprint\Footprint.csproj
+	EndGlobalSection
+EndGlobal

ios8/Footprint/Footprint/AppDelegate.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+using Foundation;
+using UIKit;
+
+namespace Footprint
+{
+	[Register ("AppDelegate")]
+	public partial class AppDelegate : UIApplicationDelegate
+	{
+		public override UIWindow Window { get; set; }
+
+		public override bool FinishedLaunching (UIApplication app, NSDictionary options)
+		{
+			return true;
+		}
+	}
+}
+

ios8/Footprint/Footprint/Entitlements.plist

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+</dict>
+</plist>

ios8/Footprint/Footprint/Footprint.csproj

@@ -0,0 +1,150 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">iPhoneSimulator</Platform>
+    <ProjectTypeGuids>{FEACFBD2-3405-455C-9665-78FE426C6842};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <ProjectGuid>{F8FE1176-70FB-428C-A099-2032DC7C585C}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>Footprint</RootNamespace>
+    <IPhoneResourcePrefix>Resources</IPhoneResourcePrefix>
+    <AssemblyName>Footprint</AssemblyName>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|iPhoneSimulator' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\iPhoneSimulator\Debug</OutputPath>
+    <DefineConstants>DEBUG;</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ConsolePause>false</ConsolePause>
+    <MtouchArch>i386, x86_64</MtouchArch>
+    <MtouchLink>None</MtouchLink>
+    <MtouchDebug>true</MtouchDebug>
+    <CodesignEntitlements>Entitlements.plist</CodesignEntitlements>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|iPhoneSimulator' ">
+    <DebugType>full</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\iPhoneSimulator\Release</OutputPath>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <MtouchLink>None</MtouchLink>
+    <MtouchArch>i386, x86_64</MtouchArch>
+    <ConsolePause>false</ConsolePause>
+    <CodesignEntitlements>Entitlements.plist</CodesignEntitlements>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|iPhone' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\iPhone\Debug</OutputPath>
+    <DefineConstants>DEBUG;</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ConsolePause>false</ConsolePause>
+    <MtouchArch>ARMv7, ARM64</MtouchArch>
+    <CodesignEntitlements>Entitlements.plist</CodesignEntitlements>
+    <CodesignKey>iPhone Developer</CodesignKey>
+    <MtouchDebug>true</MtouchDebug>
+    <MtouchI18n>
+    </MtouchI18n>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|iPhone' ">
+    <DebugType>full</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\iPhone\Release</OutputPath>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <CodesignEntitlements>Entitlements.plist</CodesignEntitlements>
+    <MtouchArch>ARMv7, ARM64</MtouchArch>
+    <ConsolePause>false</ConsolePause>
+    <CodesignKey>iPhone Developer</CodesignKey>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Ad-Hoc|iPhone' ">
+    <DebugType>full</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\iPhone\Ad-Hoc</OutputPath>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ConsolePause>false</ConsolePause>
+    <MtouchArch>ARMv7, ARM64</MtouchArch>
+    <CodesignEntitlements>Entitlements.plist</CodesignEntitlements>
+    <BuildIpa>true</BuildIpa>
+    <CodesignProvision>Automatic:AdHoc</CodesignProvision>
+    <CodesignKey>iPhone Distribution</CodesignKey>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'AppStore|iPhone' ">
+    <DebugType>full</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\iPhone\AppStore</OutputPath>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ConsolePause>false</ConsolePause>
+    <MtouchArch>ARMv7, ARM64</MtouchArch>
+    <CodesignEntitlements>Entitlements.plist</CodesignEntitlements>
+    <CodesignProvision>Automatic:AppStore</CodesignProvision>
+    <CodesignKey>iPhone Distribution</CodesignKey>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Xml" />
+    <Reference Include="System.Core" />
+    <Reference Include="Xamarin.iOS" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Info.plist" />
+    <None Include="Entitlements.plist" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Main.cs" />
+    <Compile Include="AppDelegate.cs" />
+    <Compile Include="MainViewController.cs" />
+    <Compile Include="Math\CoordinateConverter.cs" />
+    <Compile Include="Math\EastSouthDistance.cs" />
+    <Compile Include="Math\GeoAnchor.cs" />
+  </ItemGroup>
+  <Import Project="$(MSBuildExtensionsPath)\Xamarin\iOS\Xamarin.iOS.CSharp.targets" />
+  <ItemGroup>
+    <InterfaceDefinition Include="Main.storyboard" />
+  </ItemGroup>
+  <ItemGroup>
+    <Folder Include="Resources\Images.xcassets\" />
+    <Folder Include="Resources\Images.xcassets\AppIcon.appiconset\" />
+    <Folder Include="Resources\Images.xcassets\LaunchImage.launchimage\" />
+    <Folder Include="Math\" />
+  </ItemGroup>
+  <ItemGroup>
+    <ImageAsset Include="Resources\Images.xcassets\FLOORPLAN_IMAGE_LANDSCAPE.imageset\Contents.json" />
+    <ImageAsset Include="Resources\Images.xcassets\FLOORPLAN_IMAGE_LANDSCAPE.imageset\FLOORPLAN_IMAGE_LANDSCAPE.png" />
+    <ImageAsset Include="Resources\Images.xcassets\FLOORPLAN_IMAGE_PORTRAIT.imageset\Contents.json" />
+    <ImageAsset Include="Resources\Images.xcassets\FLOORPLAN_IMAGE_PORTRAIT.imageset\FLOORPLAN_IMAGE_PORTRAIT.png" />
+    <ImageAsset Include="Resources\Images.xcassets\pin.imageset\Contents.json" />
+    <ImageAsset Include="Resources\Images.xcassets\pin.imageset\pin.png" />
+    <ImageAsset Include="Resources\Images.xcassets\radius.imageset\Contents.json" />
+    <ImageAsset Include="Resources\Images.xcassets\radius.imageset\radius.png" />
+    <ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Contents.json" />
+    <ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-60%402x.png" />
+    <ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-72.png" />
+    <ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-72%402x.png" />
+    <ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-76.png" />
+    <ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-76%402x.png" />
+    <ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-Small-50.png" />
+    <ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-Small-50%402x.png" />
+    <ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-Small.png" />
+    <ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-Small%402x.png" />
+    <ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-Spotlight-40.png" />
+    <ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-Spotlight-40%402x.png" />
+    <ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon.png" />
+    <ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon%402x.png" />
+    <ImageAsset Include="Resources\Images.xcassets\LaunchImage.launchimage\Contents.json" />
+    <ImageAsset Include="Resources\Images.xcassets\LaunchImage.launchimage\Default-568h%402x.png" />
+    <ImageAsset Include="Resources\Images.xcassets\LaunchImage.launchimage\Default-Landscape%402x~ipad.png" />
+    <ImageAsset Include="Resources\Images.xcassets\LaunchImage.launchimage\Default-Landscape~ipad.png" />
+    <ImageAsset Include="Resources\Images.xcassets\LaunchImage.launchimage\Default-Portrait%402x~ipad.png" />
+    <ImageAsset Include="Resources\Images.xcassets\LaunchImage.launchimage\Default-Portrait~ipad.png" />
+    <ImageAsset Include="Resources\Images.xcassets\LaunchImage.launchimage\Default.png" />
+    <ImageAsset Include="Resources\Images.xcassets\LaunchImage.launchimage\Default%402x.png" />
+  </ItemGroup>
+</Project>

ios8/Footprint/Footprint/Info.plist

@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDisplayName</key>
+	<string>Footprint</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.your-company.Footprint</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1.0</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>MinimumOSVersion</key>
+	<string>8.0</string>
+	<key>UIDeviceFamily</key>
+	<array>
+		<integer>1</integer>
+		<integer>2</integer>
+	</array>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>NSLocationWhenInUseUsageDescription</key>
+	<string>Your location is used to show you how to use CoreLocation!</string>
+	<key>UIBackgroundModes</key>
+	<array>
+		<string>location</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>XSAppIconAssets</key>
+	<string>Resources/Images.xcassets/AppIcon.appiconset</string>
+	<key>XSLaunchImageAssets</key>
+	<string>Resources/Images.xcassets/LaunchImage.launchimage</string>
+</dict>
+</plist>

ios8/Footprint/Footprint/Main.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+using Foundation;
+using UIKit;
+
+namespace Footprint
+{
+	public class Application
+	{
+		static void Main (string[] args)
+		{
+			UIApplication.Main (args, null, "AppDelegate");
+		}
+	}
+}

ios8/Footprint/Footprint/Main.storyboard

@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6154.21" systemVersion="13E28" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" initialViewController="vXZ-lx-hvc">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6153.13"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="ufC-wZ-h7g">
+            <objects>
+                <viewController id="vXZ-lx-hvc" customClass="MainViewController" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="wKM-50-wav"/>
+                        <viewControllerLayoutGuide type="bottom" id="BSO-b2-nar"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="JIg-XY-Nu0">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="FLOORPLAN_IMAGE_PORTRAIT" translatesAutoresizingMaskIntoConstraints="NO" id="Gk1-8e-5tu">
+                                <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                            </imageView>
+                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" image="radius" translatesAutoresizingMaskIntoConstraints="NO" id="avJ-F8-Gai">
+                                <rect key="frame" x="6" y="7" width="62" height="62"/>
+                            </imageView>
+                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" image="pin" translatesAutoresizingMaskIntoConstraints="NO" id="5yS-V7-hCw">
+                                <rect key="frame" x="0.0" y="0.0" width="75" height="75"/>
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
+                        <constraints>
+                            <constraint firstAttribute="trailing" secondItem="Gk1-8e-5tu" secondAttribute="trailing" id="Vsq-QW-AQq"/>
+                            <constraint firstAttribute="bottom" secondItem="Gk1-8e-5tu" secondAttribute="bottom" id="hUg-xj-j3X"/>
+                            <constraint firstItem="Gk1-8e-5tu" firstAttribute="top" secondItem="JIg-XY-Nu0" secondAttribute="top" id="jKG-tp-kaQ"/>
+                            <constraint firstItem="Gk1-8e-5tu" firstAttribute="leading" secondItem="JIg-XY-Nu0" secondAttribute="leading" id="pWb-Vu-ztm"/>
+                        </constraints>
+                    </view>
+                    <connections>
+                        <outlet property="imageView" destination="Gk1-8e-5tu" id="5Dx-Mk-i07"/>
+                        <outlet property="pinView" destination="5yS-V7-hCw" id="RQB-Ze-6Dq"/>
+                        <outlet property="radiusView" destination="avJ-F8-Gai" id="FW6-82-6cM"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="x5A-6p-PRh" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="245" y="691"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="FLOORPLAN_IMAGE_PORTRAIT" width="510" height="826"/>
+        <image name="pin" width="150" height="150"/>
+        <image name="radius" width="62" height="62"/>
+    </resources>
+    <simulatedMetricsContainer key="defaultSimulatedMetrics">
+        <simulatedStatusBarMetrics key="statusBar"/>
+        <simulatedOrientationMetrics key="orientation"/>
+        <simulatedScreenMetrics key="destination" type="retina4"/>
+    </simulatedMetricsContainer>
+</document>

ios8/Footprint/Footprint/MainViewController.cs

@@ -0,0 +1,162 @@
+using System;
+
+using Foundation;
+using UIKit;
+using MapKit;
+using CoreGraphics;
+using CoreLocation;
+
+namespace Footprint
+{
+	[Register ("MainViewController")]
+	public class MainViewController : UIViewController
+	{
+		[Outlet ("imageView")]
+		UIImageView ImageView { get; set; }
+
+		[Outlet ("pinView")]
+		UIImageView PinView { get; set; }
+
+		[Outlet ("radiusView")]
+		UIImageView RadiusView { get; set; }
+
+		CLLocationManager locationManager;
+		Tuple<GeoAnchor, GeoAnchor> anchorPair;
+
+		CoordinateConverter coordinateConverter;
+
+		nfloat displayScale;
+		CGPoint displayOffset;
+
+
+		public MainViewController (IntPtr handle)
+			: base (handle)
+		{
+
+		}
+
+		public override void ViewDidLoad ()
+		{
+			base.ViewDidLoad ();
+
+			locationManager = new CLLocationManager ();
+			locationManager.AuthorizationChanged += OnAuthorizationChanged;
+			locationManager.LocationsUpdated += OnLocationsUpdated;
+			locationManager.DesiredAccuracy = CLLocation.AccuracyBest;
+			locationManager.ActivityType = CLActivityType.Other;
+
+			// We setup a pair of anchors that will define how the floorplan image, maps to geographic co-ordinates
+			var anchor1 = new GeoAnchor {
+				LatitudeLongitude = new CLLocationCoordinate2D (37.770511, -122.465810),
+				Pixel = new CGPoint (12, 18)
+			};
+
+			var anchor2 = new GeoAnchor {
+				LatitudeLongitude = new CLLocationCoordinate2D (37.769125, -122.466356),
+				Pixel = new CGPoint (481, 815)
+			};
+
+			anchorPair = new Tuple<GeoAnchor, GeoAnchor> (anchor1, anchor2);
+
+			// Initialize the coordinate system converter with two anchor points.
+			coordinateConverter = new CoordinateConverter (anchorPair);
+		}
+
+		public override void ViewDidAppear (bool animated)
+		{
+			base.ViewDidAppear (animated);
+			SetScaleAndOffset ();
+			StartTrackingLocation ();
+		}
+
+		void SetScaleAndOffset ()
+		{
+			CGSize imageViewFrameSize = ImageView.Frame.Size;
+			CGSize imageSize = ImageView.Image.Size;
+
+			// Calculate how much we'll be scaling the image to fit on screen.
+			nfloat wRatio = imageViewFrameSize.Width / imageSize.Width;
+			nfloat hRatio = imageViewFrameSize.Height / imageSize.Height;
+			displayScale = NMath.Min (wRatio, hRatio);
+			Console.WriteLine ("Scale Factor: {0}", displayScale);
+
+			// Depending on whether we're constrained by width or height,
+			// figure out how much our floorplan pixels need to be offset to adjust for the image being centered
+			if (wRatio < hRatio) {
+				Console.WriteLine ("Constrained by width");
+				displayOffset = new CGPoint (0, (imageViewFrameSize.Height - imageSize.Height * displayScale) / 2);
+			} else {
+				Console.WriteLine ("Constrained by height");
+				displayOffset = new CGPoint ((imageViewFrameSize.Width - imageSize.Width * displayScale) / 2, 0);
+			}
+
+			Console.WriteLine ("Offset: x={0}, y={1}", displayOffset.X, displayOffset.Y);
+		}
+
+		void StartTrackingLocation ()
+		{
+			CLAuthorizationStatus status = CLLocationManager.Status;
+			if (status == CLAuthorizationStatus.NotDetermined) {
+				locationManager.RequestWhenInUseAuthorization ();
+			} else if (status == CLAuthorizationStatus.AuthorizedWhenInUse || status == CLAuthorizationStatus.AuthorizedAlways) {
+				locationManager.StartUpdatingLocation ();
+			}
+		}
+
+		void OnAuthorizationChanged (object sender, CLAuthorizationChangedEventArgs e)
+		{
+			switch (e.Status) {
+				case CLAuthorizationStatus.AuthorizedAlways:
+				case CLAuthorizationStatus.AuthorizedWhenInUse:
+					Console.WriteLine ("Got authorization, start tracking location");
+					StartTrackingLocation ();
+					break;
+
+				case CLAuthorizationStatus.NotDetermined:
+					locationManager.RequestWhenInUseAuthorization ();
+					break;
+
+				default:
+					break;
+			}
+		}
+
+		void OnLocationsUpdated (object sender, CLLocationsUpdatedEventArgs e)
+		{
+			// Pass location updates to the map view.
+			foreach (var l in e.Locations) {
+				Console.WriteLine ("Location (Floor {0}): {1}", l.Floor, l);
+				UpdateViewWithLocation (l);
+			}
+		}
+
+		void UpdateViewWithLocation (CLLocation location)
+		{
+			// We animate transition from one position to the next, this makes the dot move smoothly over the map
+			UIView.Animate (0.75, () => {
+				// Call the converter to find these coordinates on our floorplan.
+				CGPoint pointOnImage = coordinateConverter.Convert (location.Coordinate);
+
+				// These coordinates need to be scaled based on how much the image has been scaled
+				var x = pointOnImage.X * displayScale + displayOffset.X;
+				var y = pointOnImage.Y * displayScale + displayOffset.Y;
+				var scaledPoint = new CGPoint (x, y);
+
+				// Calculate and set the size of the radius
+				nfloat radiusFrameSize = (nfloat)location.HorizontalAccuracy * coordinateConverter.PixelsPerMeter * 2;
+				RadiusView.Frame = new CGRect (0, 0, radiusFrameSize, radiusFrameSize);
+
+				// Move the pin and radius to the user's location
+				PinView.Center = scaledPoint;
+				RadiusView.Center = scaledPoint;
+			});
+		}
+
+		public override void WillAnimateRotation (UIInterfaceOrientation toInterfaceOrientation, double duration)
+		{
+			base.WillAnimateRotation (toInterfaceOrientation, duration);
+			SetScaleAndOffset ();
+		}
+	}
+}
+

ios8/Footprint/Footprint/Math/CoordinateConverter.cs

@@ -0,0 +1,128 @@
+using System;
+using MapKit;
+using CoreGraphics;
+using CoreLocation;
+
+namespace Footprint
+{
+	public class CoordinateConverter
+	{
+		// We pick one of the anchors on the floorplan as an origin point that we will compute distance relative to.
+		MKMapPoint fromAnchorMKPoint;
+		CGPoint fromAnchorFloorplanPoint;
+
+		public nfloat PixelsPerMeter { get; private set; }
+
+		nfloat radiansRotated;
+
+		// This will anchor image to geographic coordinates
+		public CoordinateConverter (CLLocationCoordinate2D topLeft, CLLocationCoordinate2D bottomRight, CGSize imageSize)
+		{
+			var topLeftAnchor = new GeoAnchor {
+				LatitudeLongitude = topLeft,
+				Pixel = new CGPoint (0, 0)
+			};
+
+			var bottomRightAnchor = new GeoAnchor {
+				LatitudeLongitude = bottomRight,
+				Pixel = new CGPoint (imageSize.Width, imageSize.Height)
+			};
+
+			var anchorPair = new Tuple<GeoAnchor, GeoAnchor> (topLeftAnchor, bottomRightAnchor);
+			Init (anchorPair);
+		}
+
+		public CoordinateConverter (Tuple<GeoAnchor, GeoAnchor> anchors)
+		{
+			Init (anchors);
+		}
+
+		void Init (Tuple<GeoAnchor, GeoAnchor> anchors)
+		{
+			// To compute the distance between two geographical co-ordinates, we first need to
+			// convert to MapKit co-ordinates
+			fromAnchorFloorplanPoint = anchors.Item1.Pixel;
+			fromAnchorMKPoint = MKMapPoint.FromCoordinate (anchors.Item1.LatitudeLongitude);
+			MKMapPoint toAnchorMKPoint = MKMapPoint.FromCoordinate (anchors.Item2.LatitudeLongitude);
+
+			// So that we can use MapKit's helper function to compute distance.
+			// this helper function takes into account the curvature of the earth.
+			var distanceBetweenPointsMeters = (nfloat)MKGeometry.MetersBetweenMapPoints (fromAnchorMKPoint, toAnchorMKPoint);
+
+			var dx = anchors.Item1.Pixel.X - anchors.Item2.Pixel.X;
+			var dy = anchors.Item1.Pixel.Y - anchors.Item2.Pixel.Y;
+
+			// Distance between two points in pixels (on the floorplan image)
+			var distanceBetweenPointsPixels = Hypot (dx, dy);
+
+			// This gives us pixels/meter
+			PixelsPerMeter = distanceBetweenPointsPixels / distanceBetweenPointsMeters;
+
+			// Get the 2nd anchor's eastward/southward distance in meters from the first anchor point.
+			var hyp = FetchRect (fromAnchorMKPoint, toAnchorMKPoint);
+
+			// Angle of diagonal to east (in geographic)
+			nfloat angleFromEastAndHypo = NMath.Atan2 (hyp.South, hyp.East);
+
+			// Angle of diagonal to horizontal (in floorplan)
+			nfloat angleFromXAndHypo = NMath.Atan2 (dy, dx);
+
+			// Rotation amount from the geographic anchor line segment
+			// to the floorplan anchor line segment
+			// This is angle between X axis and East direction. This angle shows how you floor plan exists in real world
+			radiansRotated = angleFromXAndHypo - angleFromEastAndHypo;
+		}
+
+		// Convert the specified geographic coordinate to floorplan point
+		public CGPoint Convert (CLLocationCoordinate2D coordinate)
+		{
+			// Get the distance east & south with respect to the first anchor point in meters
+			EastSouthDistance rect = FetchRect (fromAnchorMKPoint, MKMapPoint.FromCoordinate (coordinate));
+
+			// Convert the east-south anchor point distance to pixels (still in east-south)
+			// TODO: https://trello.com/c/aL7pN9yI
+			var scaleTransform = CGAffineTransform.MakeScale (PixelsPerMeter, PixelsPerMeter);
+			CGPoint pixelsXYInEastSouth = ApplyTransform (new CGPoint (rect.East, rect.South), scaleTransform);
+
+			// Rotate the east-south distance to be relative to floorplan horizontal
+			// This gives us an xy distance in pixels from the anchor point.
+			var rotateTransform = CGAffineTransform.MakeRotation (radiansRotated);
+			CGPoint xy = ApplyTransform (pixelsXYInEastSouth, rotateTransform);
+
+			// From Anchor point may not be top letf corner.
+			// however, we need the pixels from the (0, 0) of the floorplan
+			// so we adjust by the position of the anchor point in the floorplan
+			xy.X += fromAnchorFloorplanPoint.X;
+			xy.Y += fromAnchorFloorplanPoint.Y;
+
+			return xy;
+		}
+
+		// Two points in rectangular co-ordinate system create a rectange
+		static EastSouthDistance FetchRect (MKMapPoint fromAnchorMKPoint, MKMapPoint toPoint)
+		{
+			double latitude = MKMapPoint.ToCoordinate (fromAnchorMKPoint).Latitude;
+			nfloat metersPerMapPoint = (nfloat)MKGeometry.MetersPerMapPointAtLatitude (latitude);
+
+			var eastSouthDistance = new EastSouthDistance {
+				East = (nfloat)(toPoint.X - fromAnchorMKPoint.X) * metersPerMapPoint,
+				South = (nfloat)(toPoint.Y - fromAnchorMKPoint.Y) * metersPerMapPoint
+			};
+			return eastSouthDistance;
+		}
+
+		static nfloat Hypot (nfloat x, nfloat y)
+		{
+			return NMath.Sqrt (x * x + y * y);
+		}
+
+		static CGPoint ApplyTransform (CGPoint point, CGAffineTransform t)
+		{
+			CGPoint p = new CGPoint ();
+			p.X = t.xx * point.X + t.xy * point.Y + t.x0;
+			p.Y = t.yx * point.X + t.yy * point.Y + t.y0;
+			return p;
+		}
+	}
+}
+

ios8/Footprint/Footprint/Math/EastSouthDistance.cs

@@ -0,0 +1,17 @@
+using System;
+
+using CoreLocation;
+
+namespace Footprint
+{
+	// Struct that contains a point in meters (east and south) with respect to an origin point (in geographic space)
+	// We use East & South because when drawing on an image, origin (0,0) is on the top-left.
+	// So +eastMeters corresponds to +x and +southMeters corresponds to +y
+	public struct EastSouthDistance
+	{
+		public nfloat East { get; set; }
+
+		public nfloat South { get; set; }
+	}
+}
+

ios8/Footprint/Footprint/Math/GeoAnchor.cs

@@ -0,0 +1,14 @@
+using System;
+using CoreLocation;
+using CoreGraphics;
+
+namespace Footprint
+{
+	public struct GeoAnchor
+	{
+		public CLLocationCoordinate2D LatitudeLongitude { get; set; }
+
+		public CGPoint Pixel { get; set; }
+	}
+}
+

ios8/Footprint/Footprint/Resources/Images.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,104 @@
+{
+  "images": [
+    {
+      "filename": "Icon-Small.png",
+      "size": "29x29",
+      "scale": "1x",
+      "idiom": "iphone"
+    },
+    {
+      "filename": "Icon-Small@2x.png",
+      "size": "29x29",
+      "scale": "2x",
+      "idiom": "iphone"
+    },
+    {
+      "filename": "Icon-Spotlight-40@2x.png",
+      "size": "40x40",
+      "scale": "2x",
+      "idiom": "iphone"
+    },
+    {
+      "filename": "Icon.png",
+      "size": "57x57",
+      "scale": "1x",
+      "idiom": "iphone"
+    },
+    {
+      "filename": "Icon@2x.png",
+      "size": "57x57",
+      "scale": "2x",
+      "idiom": "iphone"
+    },
+    {
+      "filename": "Icon-60@2x.png",
+      "size": "60x60",
+      "scale": "2x",
+      "idiom": "iphone"
+    },
+    {
+      "filename": "Icon-Small.png",
+      "size": "29x29",
+      "scale": "1x",
+      "idiom": "ipad"
+    },
+    {
+      "filename": "Icon-Small@2x.png",
+      "size": "29x29",
+      "scale": "2x",
+      "idiom": "ipad"
+    },
+    {
+      "filename": "Icon-Spotlight-40.png",
+      "size": "40x40",
+      "scale": "1x",
+      "idiom": "ipad"
+    },
+    {
+      "filename": "Icon-Spotlight-40@2x.png",
+      "size": "40x40",
+      "scale": "2x",
+      "idiom": "ipad"
+    },
+    {
+      "filename": "Icon-Small-50.png",
+      "size": "50x50",
+      "scale": "1x",
+      "idiom": "ipad"
+    },
+    {
+      "filename": "Icon-Small-50@2x.png",
+      "size": "50x50",
+      "scale": "2x",
+      "idiom": "ipad"
+    },
+    {
+      "filename": "Icon-72.png",
+      "size": "72x72",
+      "scale": "1x",
+      "idiom": "ipad"
+    },
+    {
+      "filename": "Icon-72@2x.png",
+      "size": "72x72",
+      "scale": "2x",
+      "idiom": "ipad"
+    },
+    {
+      "filename": "Icon-76.png",
+      "size": "76x76",
+      "scale": "1x",
+      "idiom": "ipad"
+    },
+    {
+      "filename": "Icon-76@2x.png",
+      "size": "76x76",
+      "scale": "2x",
+      "idiom": "ipad"
+    }
+  ],
+  "info": {
+    "version": 1,
+    "author": "xcode"
+  }
+}

ios8/Footprint/Footprint/Resources/Images.xcassets/FLOORPLAN_IMAGE_LANDSCAPE.imageset/Contents.json

@@ -0,0 +1,13 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x",
+      "filename" : "FLOORPLAN_IMAGE_LANDSCAPE.png"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

ios8/Footprint/Footprint/Resources/Images.xcassets/FLOORPLAN_IMAGE_PORTRAIT.imageset/Contents.json

@@ -0,0 +1,13 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x",
+      "filename" : "FLOORPLAN_IMAGE_PORTRAIT.png"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

ios8/Footprint/Footprint/Resources/Images.xcassets/LaunchImage.launchimage/Contents.json

@@ -0,0 +1,148 @@
+{
+  "images": [
+    {
+      "minimum-system-version": "7.0",
+      "orientation": "portrait",
+      "extent": "full-screen",
+      "filename": "Default@2x.png",
+      "size": "640x960",
+      "scale": "2x",
+      "idiom": "iphone"
+    },
+    {
+      "minimum-system-version": "7.0",
+      "orientation": "portrait",
+      "extent": "full-screen",
+      "filename": "Default-568h@2x.png",
+      "size": "640x1136",
+      "subtype": "retina4",
+      "scale": "2x",
+      "idiom": "iphone"
+    },
+    {
+      "minimum-system-version": "7.0",
+      "orientation": "portrait",
+      "extent": "full-screen",
+      "filename": "Default-Portrait~ipad.png",
+      "size": "768x1024",
+      "scale": "1x",
+      "idiom": "ipad"
+    },
+    {
+      "minimum-system-version": "7.0",
+      "orientation": "portrait",
+      "extent": "full-screen",
+      "filename": "Default-Portrait@2x~ipad.png",
+      "size": "1536x2048",
+      "scale": "2x",
+      "idiom": "ipad"
+    },
+    {
+      "minimum-system-version": "7.0",
+      "orientation": "landscape",
+      "extent": "full-screen",
+      "filename": "Default-Landscape~ipad.png",
+      "size": "1024x768",
+      "scale": "1x",
+      "idiom": "ipad"
+    },
+    {
+      "minimum-system-version": "7.0",
+      "orientation": "landscape",
+      "extent": "full-screen",
+      "filename": "Default-Landscape@2x~ipad.png",
+      "size": "2048x1536",
+      "scale": "2x",
+      "idiom": "ipad"
+    },
+    {
+      "orientation": "portrait",
+      "extent": "full-screen",
+      "filename": "Default.png",
+      "size": "320x480",
+      "scale": "1x",
+      "idiom": "iphone"
+    },
+    {
+      "orientation": "portrait",
+      "extent": "full-screen",
+      "filename": "Default@2x.png",
+      "size": "640x960",
+      "scale": "2x",
+      "idiom": "iphone"
+    },
+    {
+      "orientation": "portrait",
+      "extent": "full-screen",
+      "filename": "Default-568h@2x.png",
+      "size": "640x1136",
+      "subtype": "retina4",
+      "scale": "2x",
+      "idiom": "iphone"
+    },
+    {
+      "orientation": "portrait",
+      "extent": "full-screen",
+      "filename": "Default-Portrait~ipad.png",
+      "size": "768x1024",
+      "scale": "1x",
+      "idiom": "ipad"
+    },
+    {
+      "orientation": "portrait",
+      "extent": "full-screen",
+      "filename": "Default-Portrait@2x~ipad.png",
+      "size": "1536x2048",
+      "scale": "2x",
+      "idiom": "ipad"
+    },
+    {
+      "orientation": "portrait",
+      "extent": "to-status-bar",
+      "size": "768x1004",
+      "scale": "1x",
+      "idiom": "ipad"
+    },
+    {
+      "orientation": "portrait",
+      "extent": "to-status-bar",
+      "size": "1536x2008",
+      "scale": "2x",
+      "idiom": "ipad"
+    },
+    {
+      "orientation": "landscape",
+      "extent": "full-screen",
+      "filename": "Default-Landscape~ipad.png",
+      "size": "1024x768",
+      "scale": "1x",
+      "idiom": "ipad"
+    },
+    {
+      "orientation": "landscape",
+      "extent": "full-screen",
+      "filename": "Default-Landscape@2x~ipad.png",
+      "size": "2048x1536",
+      "scale": "2x",
+      "idiom": "ipad"
+    },
+    {
+      "orientation": "landscape",
+      "extent": "to-status-bar",
+      "size": "1024x748",
+      "scale": "1x",
+      "idiom": "ipad"
+    },
+    {
+      "orientation": "landscape",
+      "extent": "to-status-bar",
+      "size": "2048x1496",
+      "scale": "2x",
+      "idiom": "ipad"
+    }
+  ],
+  "info": {
+    "version": 1,
+    "author": "xcode"
+  }
+}

ios8/Footprint/Footprint/Resources/Images.xcassets/pin.imageset/Contents.json

@@ -0,0 +1,13 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x",
+      "filename" : "pin.png"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

ios8/Footprint/Footprint/Resources/Images.xcassets/radius.imageset/Contents.json

@@ -0,0 +1,13 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x",
+      "filename" : "radius.png"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

ios8/Footprint/Metadata.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<SampleMetadata>
+	<ID>4fbc7a89-cbc0-496a-85f5-5be69fcca74d</ID>
+	<IsFullApplication>false</IsFullApplication>
+	<Level>Beginning</Level>
+	<Tags>Device Features,Maps & Location, iOS8</Tags>
+	<SupportedPlatforms>iOS</SupportedPlatforms>
+	<Gallery>true</Gallery>
+	<MinimumLicenseRequirement>Starter</MinimumLicenseRequirement>
+</SampleMetadata>

ios8/Footprint/README.md

@@ -0,0 +1,37 @@
+Footprint
+==============
+
+Display device location on a floorplan image.
+Using Core Location, we will take the position in Latitude/Longitude and project it onto a flat floorplan. We will demonstrate how to do the conversion from the Geographic coordinates system (Latitude/Longitude) to the floorplan's image coordinate system (x,y)
+
+**Note:** For this sample to function, you must have a floorplan for a venue that is Indoor Positioning enabled. To see the the apporpriate position on the floorplan, the device will need to be in that venue. If you are not in a venue, you must emulate a position in the venue using "Custom Location" in the simulator.
+
+Using Your Own Floorplan
+------------------------
+If you have a venue floorplan you would like to use, make the following changes:
+
+* Replace the existing `FLOORPLAN_IMAGE` in the image Assets
+* Set the two anchor points in `MainViewController`: These are two points on the floorplan in Latitude/Longitude, and Image x,y
+
+Refs
+----
+https://developer.apple.com/videos/wwdc/2014/
+
+* Taking Core Location Indoors (recomended)
+* What's New in Core Location (optional)
+
+Build Requirements
+------------------
+
+Building this sample requires Xcode 6.0 and iOS 8.0 SDK
+
+Target
+------
+This sample runnable on iPhoneSimulator/iPadSimulator iPhone/iPad
+
+Author
+------ 
+IOS:
+Copyright (C) 2014 Apple Inc. All rights reserved.
+
+Ported to Xamarin.iOS by Rustam Zaitov