Hello,
Could I please ask how to include the simd framework function simd_incircle(::::)?
I have imported simd but cannot find this function, linked: https://developer.apple.com/documentation/accelerate/1646495-simd_incircle
Details: Swift 5.2 Xcode 13.0
Thank you
I did the following test, with Xcode 13.2.1. I had not Xcode 13.0 available to repeat the test with.
import simd
In viewDidLoad, added:
let result = simd_incircle(simd_float2(repeating: 1), simd_float2(repeating: 2), simd_float2(repeating: 3), simd_float2(repeating: 4))
print("Result", result)
.
It compiles and runs run and yields:
Note I was expecting a Bool according to doc !?!?!?
For some reason the deployment target needed to be "refreshed" by choosing a new value in the dropdown found in General>Deployment Info before additional framework functions were seen.
I made another test with points that are not aligned.
I get a non null result, but still not bool. And documentation says absolutely nothing !
let aPt = simd_float2(repeating: -1)
let bPt = simd_make_float2(1, -1)
let cPt = simd_make_float2(0, 1)
let result = simd_incircle(simd_float2(repeating: 0), aPt, bPt, cPt)
print("Result", result)
The header docs are correct:
/** @abstract Test if x lies inside, on, or outside the circle passing
* through a, b, and c.
*
* @param __x The point being tested.
* @param __a The first point determining the circle.
* @param __b The second point determining the circle.
* @param __c The third point determining the circle.
*
* @result Assuming that (a,b,c) are positively-oriented, positive if x is
* inside the circle, zero if x is on the circle, and negative if x is
* outside the circle. The sign of the result is flipped if (a,b,c) are
* negatively-oriented. */