public static Array CreateArray <T>(this RegularArrayInfo arrayInfo, ICollection <T> coll)
{
if (arrayInfo == null)
{
throw new ArgumentNullException("arrayInfo");
}
if (coll == null)
{
throw new ArgumentNullException("coll");
}
if (coll.Count != arrayInfo.Length)
{
throw new ArgumentException("Invalid collection length", "coll");
}
var indices = new int[arrayInfo.Rank];
var array = arrayInfo.CreateArray <T>();
coll.ForEach((t, i) =>
{
arrayInfo.CalcDimIndices(i, indices);
arrayInfo.SetValue(array, t, indices);
});
return(array);
}
public static int TransformFlatIndex(this RegularArrayInfo arrayInfo, int flatIndex, params Range[] ranges)
{
arrayInfo.ValidateRanges(ranges);
int[] dimIndices = new int[arrayInfo.Rank];
RegularArrayInfo ai = new RegularArrayInfo(ranges.Select(r => new ArrayDimension(r.Count, r.Index)).ToArray());
ai.CalcDimIndices(flatIndex, dimIndices);
return(arrayInfo.CalcFlatIndex(dimIndices));
}
public static IEnumerable <int> EnumerateFlatIndex(this RegularArrayInfo arrayInfo, params Range[] ranges)
{
arrayInfo.ValidateRanges(ranges);
int[] dimIndices = new int[arrayInfo.Rank];
for (ArrayIndex ai = new ArrayIndex(new RegularArrayInfo(ranges.Select(r => new ArrayDimension(r.Count, r.Index)).ToArray())); ai.Carry == 0; ai++)
{
ai.GetDimIndices(dimIndices);
yield return(arrayInfo.CalcFlatIndex(dimIndices));
}
}
public static void ValidateRanges(this RegularArrayInfo arrayInfo, params Range[] ranges)
{
if (arrayInfo == null)
{
throw new ArgumentNullException("arrayInfo");
}
if (ranges == null)
{
throw new ArgumentNullException("ranges");
}
if (ranges.Length != arrayInfo.Rank)
{
throw new ArgumentException("Invalid array length", "ranges");
}
if (Enumerable.Range(0, ranges.Length)
.Any(i => ranges[i].Index <arrayInfo.LowerBounds[i] || ranges[i].Index + ranges[i].Count> arrayInfo.LowerBounds[i] + arrayInfo.Lengths[i]))
{
throw new ArgumentException("Out of range dimension exists");
}
//return new RegularArrayInfo(ranges.Select(r => new ArrayDimension(r.Count, r.Index)).ToArray());
}
