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2014/10/15 ¤U¤È 10:04:33

iphone Programming Glossary: bearing

Is PhoneGap the right choice for me?

http://stackoverflow.com/questions/11422108/is-phonegap-the-right-choice-for-me

HTML CSS and Javascript but not PHP. What if my app needs to contact a server Can PhoneGap handle that Thank you for bearing with all these questions android iphone ios phonegap cordova share improve this question PhoneGap achieves platform..

Best way to save to nsuserdefaults for custom class?

http://stackoverflow.com/questions/3000220/best-way-to-save-to-nsuserdefaults-for-custom-class

an NSArray 'Group'. There is only one Group. What is the best way of storing and loading the Group in NSUserDefaults bearing in mind that float and int are not legal for NSUserDefaults iphone objective c nsarray nsdictionary nsuserdefaults share..

iPhone's NSUserdefaults is a database or plist

http://stackoverflow.com/questions/3178115/iphones-nsuserdefaults-is-a-database-or-plist

CLLocation Category for Calculating Bearing w/ Haversine function

http://stackoverflow.com/questions/3925942/cllocation-category-for-calculating-bearing-w-haversine-function

Category for Calculating Bearing w Haversine function I'm trying to write a category for CLLocation to return the bearing to another CLLocation. I believe I'm doing something wrong with the formula calculous is not my strong suit . The returned.. CLLocation. I believe I'm doing something wrong with the formula calculous is not my strong suit . The returned bearing is always off. I've been looking at this question and tried applying the changes that were accepted as a correct answer.. were accepted as a correct answer and the webpage it references http stackoverflow.com questions 3809337 calculating bearing between two cllocationcoordinate2ds http www.movable type.co.uk scripts latlong.html Thanks for any pointers. I've tried..

iPhone Compass GPS Direction

http://stackoverflow.com/questions/4130821/iphone-compass-gps-direction

in image ^ iphone gps location compass geolocation share improve this question There is a standard heading or bearing equation that you can use if you are at lat1 lon1 and the point you are interested in is at lat2 lon2 then the equation.. equation is heading atan2 sin lon2 lon1 cos lat2 cos lat1 sin lat2 sin lat1 cos lat2 cos lon2 lon1 This gives you a bearing in radians which you can convert to degrees by multiplying by 180 . The value is then between 180 and 180 degrees so to.. convert to degrees by multiplying by 180 . The value is then between 180 and 180 degrees so to get a standard compass bearing add 360 to any negative answers. atan2 is a standard function related to arctan that does the right thing for the four possible..

viewdidunload is not getting called at all

http://stackoverflow.com/questions/5594410/viewdidunload-is-not-getting-called-at-all

viewDidAppear animated viewWillDisappear animated and viewDidDisappear animated and viewDidUnload methods again bearing in mind that viewDidUnload won't always get called . The only time you should typically pass a view controller's view to..

Calculate new coordinate x meters and y degree away from one coordinate

http://stackoverflow.com/questions/6633850/calculate-new-coordinate-x-meters-and-y-degree-away-from-one-coordinate

latitude longitude and sample JavaScript code. Specifically the section titled Destination point given distance and bearing from start point shows how to calculate what you're asking. The JavaScript code is at the bottom of that page and here's.. coordinateFromCoord CLLocationCoordinate2D fromCoord atDistanceKm double distanceKm atBearingDegrees double bearingDegrees double distanceRadians distanceKm 6371.0 6 371 Earth's radius in km double bearingRadians self radiansFromDegrees.. atBearingDegrees double bearingDegrees double distanceRadians distanceKm 6371.0 6 371 Earth's radius in km double bearingRadians self radiansFromDegrees bearingDegrees double fromLatRadians self radiansFromDegrees fromCoord.latitude double fromLonRadians..

How can we find the angle between two locations defined by latitude or longitude

http://stackoverflow.com/questions/6745131/how-can-we-find-the-angle-between-two-locations-defined-by-latitude-or-longitude

Thanx in advance.... iphone objective c ios ipad ios4 share improve this question The formula to calculate bearing is θ atan2 sin long .cos lat2 cos lat1 .sin lat2 sin lat1 .cos lat2 .cos long Bearing is a direction to move from one location..

iPhone - Moving a CLLocation by x meters

http://stackoverflow.com/questions/7278094/iphone-moving-a-cllocation-by-x-meters

offset share improve this question There is a C function that is close to what you are asking but it takes a bearing and distance. It's in my UtilitiesGeo class on github . You would pass the latitude and longitude from your CLLocation to.. from the resulting lat2 and lon2 that it returns Given a starting lat lon point on earth distance in meters and bearing calculates destination coordinates lat2 lon2. all params in degrees void destCoordsInDegrees double lat1 double lon1.. lat2 lon2. all params in degrees void destCoordsInDegrees double lat1 double lon1 double distanceMeters double bearing double lat2 double lon2 If you can't use that take a look at the algorithms that it was derived from here and here and..

Unwanted scrolling when animating zoomScale in UIScrollView

http://stackoverflow.com/questions/7301744/unwanted-scrolling-when-animating-zoomscale-in-uiscrollview

withView because they do stuff in the image background that distracts from the issue at hand Thanks so much for bearing with me and any and all help iphone ios uiscrollview core animation catiledlayer share improve this question One of..

How to convert NSArray into NSString

http://stackoverflow.com/questions/2386834/how-to-convert-nsarray-into-nsstring

to convert NSArray into NSString in objective c iphone objective c nsstring nsarray share improve this question Bearing in mind that you don't say what's in the NSArray you can do this NSArray arr NSArray arrayWithObjects @ foo @ bar @ baz..

developing iphone apps on windows is it worth the hassel

http://stackoverflow.com/questions/2438718/developing-iphone-apps-on-windows-is-it-worth-the-hassel

whether the hassals of developing an iPhone app NOT on MacOS are really that significant to avoid giving it a shot. Bearing in mind that I do have access to a mac every now and again. So I would be able to compile it using the official Apple supported..

CLLocation Category for Calculating Bearing w/ Haversine function

http://stackoverflow.com/questions/3925942/cllocation-category-for-calculating-bearing-w-haversine-function

Category for Calculating Bearing w Haversine function I'm trying to write a category for CLLocation to return the bearing to another CLLocation. I believe.. the feedback from that other question and I'm still just not getting something. Thanks Here's my category CLLocation Bearing.h #import Foundation Foundation.h #import CoreLocation CoreLocation.h @interface CLLocation Bearing double bearingToLocation.. CLLocation Bearing.h #import Foundation Foundation.h #import CoreLocation CoreLocation.h @interface CLLocation Bearing double bearingToLocation CLLocation destinationLocation NSString compassOrdinalToLocation CLLocation nwEndPoint @end CLLocation..

How can we find the angle between two locations defined by latitude or longitude

http://stackoverflow.com/questions/6745131/how-can-we-find-the-angle-between-two-locations-defined-by-latitude-or-longitude

The formula to calculate bearing is θ atan2 sin long .cos lat2 cos lat1 .sin lat2 sin lat1 .cos lat2 .cos long Bearing is a direction to move from one location to another location starting from north and then clockwise . While angle in 2D..

How to rotate a Direction Arrow to particular location

http://stackoverflow.com/questions/7173925/how-to-rotate-a-direction-arrow-to-particular-location

NSString stringWithFormat @ .1fmi newHeading.headingAccuracy lblAccuracy setText self.strAccuracy Rotate Bearing View self rotateBearingView bearingView radians radians For Rotate Niddle CGFloat angle RadiansToDegrees radians self setLatLonForDistanceAndAngle.. @ .1fmi newHeading.headingAccuracy lblAccuracy setText self.strAccuracy Rotate Bearing View self rotateBearingView bearingView radians radians For Rotate Niddle CGFloat angle RadiansToDegrees radians self setLatLonForDistanceAndAngle..