Convert Latitude and Longitude to SCNVector3 in Swift

Asked Jul 23 '17 at 02:33

Active Jul 23 '17 at 03:07

Viewed 731 times

I am trying to covert the latitude and longitude to a SCNVector3 format. I found this article: http://www.mathworks.com/help/aeroblks/llatoecefposition.html

But not sure how to move forward. Any ideas.

UPDATE:

 let resturant = Resturant(latitude: 29.963221, longitude: -95.498958)

 let x =  ((self.sceneView.bounds.width/360.0) * (CGFloat(180.0 + resturant.latitude)));
        let y =  ((self.sceneView.bounds.height/180.0) * (CGFloat(90.0 - resturant.longitude)));

        let cube = SCNBox(width: 0.2, height: 0.2, length: 0.2, chamferRadius: 0)
        let material = SCNMaterial()
        material.diffuse.contents = UIColor.red

        cube.materials = [material]

        let node = SCNNode(geometry: cube)
        node.position = SCNVector3(x,2,-5)

        scene.rootNode.addChildNode(node)

        // Set the scene to the view
        sceneView.scene = scene

edited Jul 23 '17 at 03:07

asked Jul 23 '17 at 02:33

john doe

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In what format are you receiving the latitude/longitude values? – Pat Needham Jul 23 '17 at 02:38
I am not very familiar with that topic, but here https://stackoverflow.com/questions/19478200/convert-latitude-and-longitude-to-ecef-coordinates-system is plain C code, translating that to Swift should be straight-forward. – Martin R Jul 23 '17 at 02:44
CLLocation will contain latitude and longitude. – john doe Jul 23 '17 at 02:45
@johndoe you could set altitude to `0` if it is not relevant to your application. – Pat Needham Jul 23 '17 at 02:54
Yes lets just say altitude is always 0. How can I find x and z. I have updated the code. – john doe Jul 23 '17 at 03:03

Convert Latitude and Longitude to SCNVector3 in Swift

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