CODEWITHSUNDEEP
iosaugmented-realitycompass-geolocationheadingazimuth
Sixjac
Sixjac

Reputation: 339

Problems with Azimuth calculation when iOS device is in Landscape Right

I have written an Augmented reality app for iOS which uses location services and GPS, everything works fine when the device is in landscape left but when the devices rotation is landscape right the center azimuth does not get calculated correctly, I am currently calculating this using the true heading in the didUpdateHeading method the subtracting a heading adjustment of 90 degrees. Should I be checking if < 0??

Thanks.

Upvotes: 2

Views: 779

Answers (1)

Ricardo RendonCepeda
Ricardo RendonCepeda

Reputation: 3251

This is a pretty annoying issue and it seems that setting the headingOrientation property doesn't actually do anything.

The code below works for a landscape left orientation (home button on the right):

orientation  = (float) manager.heading.magneticHeading;
orientation += 90.0f;
if(orientation > 360.0f)
   orientation -= 360.0f;

So for a landscape right orientation, this should do the trick:

orientation  = (float) manager.heading.magneticHeading;
orientation -= 90.0f;
if(orientation < 0.0f)
   orientation += 360.0f;

Upvotes: 2

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