/// <summary>
/// Constructs a new SCNVector4 from the given Vector2.
/// </summary>
/// <param name="v">The Vector2 to copy components from.</param>
public SCNVector4(Vector2 v)
{
X = v.X;
Y = v.Y;
Z = 0.0f;
W = 0.0f;
}
public unsafe GKPolygonObstacle(Vector2 [] points)
: this(GetPointer (points), (nuint) points.Length)
{
if (ctor_pointer != IntPtr.Zero) {
Marshal.FreeHGlobal (ctor_pointer);
ctor_pointer = IntPtr.Zero;
}
}
// Apple deprecated initWithName:floatVector2: in macOS10.12/iOS10.0
// and made available initWithName:vectorFloat2: so we invoke
// the right one at runtime depending on which OS version we are running
public SKUniform(string name, Vector2 value)
{
if (CheckSystemVersion())
{
InitializeHandle(InitWithNameVectorFloat2(name, value), "initWithName:vectorFloat2:");
}
else
{
InitializeHandle(InitWithNameFloatVector2(name, value), "initWithName:floatVector2:");
}
}
public static CGPoint GetImagePoint(Vector2 faceLandmarkPoint, CGRect faceBoundingBox, nuint imageWidth, nuint imageHeight)
{
IntPtr error;
var result = VNImagePointForFaceLandmarkPoint(faceLandmarkPoint, faceBoundingBox, imageWidth, imageHeight, out error);
if (error != IntPtr.Zero)
{
throw new InvalidOperationException(Marshal.PtrToStringAuto(error));
}
return(result);
}
// Using GetXXX methods so it's similar to the ARFaceGeometry methods.
public unsafe Vector2 [] GetTextureCoordinates()
{
var count = (int)TextureCoordinateCount;
var rv = new Vector2 [count];
var ptr = (Vector2 *)GetRawTextureCoordinates();
for (int i = 0; i < count; i++)
{
rv [i] = *ptr++;
}
return(rv);
}
public virtual Vector2 [] GetVector2Values()
{
var count = TimeSampleCount;
var timesArr = new Vector2 [(int)count];
int typeSize = Marshal.SizeOf(typeof(Vector2));
unsafe {
fixed(Vector2 *arrptr = timesArr)
MDLMemoryHelper.FetchValues(typeSize, (IntPtr)arrptr, count, _GetFloat2Array);
}
return(timesArr);
}
public static GKPolygonObstacle FromPoints(Vector2 [] points)
{
if (points == null)
throw new ArgumentNullException ("points");
var size = Marshal.SizeOf (typeof (Vector2));
var length = points.Length * size;
var buffer = Marshal.AllocHGlobal (length);
try {
for (int i = 0; i < points.Length; i++)
Marshal.StructureToPtr (points[i], IntPtr.Add (buffer, i * size), false);
return FromPoints (buffer, (nuint)points.Length);
} finally {
if (buffer != IntPtr.Zero)
Marshal.FreeHGlobal (buffer);
}
}
public GKPath(Vector2 [] points, float radius, bool cyclical)
{
if (points == null)
throw new ArgumentNullException ("points");
var size = Marshal.SizeOf (typeof (Vector2));
var length = points.Length * size;
var buffer = Marshal.AllocHGlobal (length);
try {
for (int i = 0; i < points.Length; i++)
Marshal.StructureToPtr (points[i], IntPtr.Add (buffer, i * size), false);
Handle = InitWithPoints (buffer, (nuint)points.Length, radius, cyclical);
} finally {
if (buffer != IntPtr.Zero)
Marshal.FreeHGlobal (buffer);
}
}
static unsafe IntPtr GetPointer(Vector2[] points)
{
if (points == null)
throw new ArgumentNullException ("points");
if (ctor_pointer != IntPtr.Zero) {
// This can occur of a previous call to the base ctor threw an exception
Marshal.FreeHGlobal (ctor_pointer);
ctor_pointer = IntPtr.Zero;
}
var size = Marshal.SizeOf (typeof (Vector2));
var length = points.Length * size;
var buffer = Marshal.AllocHGlobal (length);
for (int i = 0; i < points.Length; i++)
Marshal.StructureToPtr (points[i], IntPtr.Add (buffer, i * size), false);
ctor_pointer = buffer;
return ctor_pointer = buffer;
}
static extern CGPoint VNImagePointForFaceLandmarkPoint(Vector2 faceLandmarkPoint, CGRect faceBoundingBox, nuint imageWidth, nuint imageHeight, out IntPtr error);
public static GKQuadTree QuadTreeWithMinPosition(Vector2 min, Vector2 max, float minCellSize)
{
return(new GKQuadTree(min, max, minCellSize));
}
