/// <summary>
/// Computes the next value of this indicator from the given state
/// </summary>
/// <param name="time"></param>
/// <param name="input">The input given to the indicator</param>
/// <returns>A new value for this indicator</returns>
protected override DoubleArray Forward(long time, DoubleArray input)
{
AssertTrue(Start >= 0 && Start < input.Properties, "Start is out of range from input's Properties.");
AssertTrue(Stop >= 0 && Stop < input.Properties, "Stop is out of range from input's Properties.");
AssertTrue(Stop >= 0 && Stop < input.Properties, "Stop and Start is out of range from input's Properties.");
var propsLen = Stop - Start;
if (input.Count == 1)
{
var ret = new DoubleArray2DManaged(1, propsLen);
for (int i = 0; i < propsLen; i++)
{
ret[0, i] = input[0, i + Start];
}
return(ret);
}
else
{
var ret = new DoubleArray2DManaged(input.Count, propsLen);
var inputCount = input.Count;
for (int cnt = 0; cnt < inputCount; cnt++)
{
for (int prop = 0; prop < propsLen; prop++)
{
ret[cnt, prop] = input[cnt, prop + Start];
}
}
return(ret);
}
}
public void JaggedArray(double value1, double value2, double value3, double value4)
{
var d = new double[2][];
d[0] = new[] { value1, value2 };
d[1] = new[] { value3, value4 };
var arr = new DoubleArray2DManaged(d);
arr.ToArray().Should().BeEquivalentTo(value1, value2, value3, value4);
}
/// <summary>
/// Selects a <see cref="DoubleArray"/> to another <see cref="DoubleArray"/>. The result is stored in a <see cref="Identity"/>.
/// </summary>
/// <param name="input">The indicator that sends data via <see cref="IUpdatable.Updated"/></param>
/// <param name="selector">A selector to choose what <see cref="DoubleArray"/>.</param>
/// <param name="waitForFirstToReady">Input must be ready in order to push the updates forward.</param>
/// <param name="name">Name of the new returned <see cref="Identity"/>.</param>
public static Identity Select(this IUpdatable input, ArraySelectorFunctionHandler selector, int outputCount = 1, int properties = 1, bool waitForFirstToReady = true, string name = null)
{
if (selector == null)
{
throw new ArgumentNullException(nameof(selector));
}
outputCount = outputCount > 0 ? outputCount : input.OutputCount;
var idn = new Identity(ResolveName(input, name), outputCount, properties);
if (outputCount > 1)
{
unsafe {
if (waitForFirstToReady)
{
input.Updated += (time, updated) => {
if (input.IsReady)
{
var ret = new DoubleArray2DManaged(outputCount, properties);
fixed(double *dst = ret, selectSrc = updated)
for (int i = 0; i < updated.Count; i++)
{
var result = selector(selectSrc[i * updated.Properties]);
Guard.AssertTrue(result.Count == outputCount, "Passed outputCount must be matching to the updated array.");
Guard.AssertTrue(properties == result.Properties, "Properties must match the properties argument passed.");
fixed(double *src = result)
Unsafe.CopyBlock(dst + i, src, (uint)(result.LinearLength * sizeof(double)));
}
idn.Update(time, ret);
}
};
}
else
{
input.Updated += (time, updated) => {
var ret = new DoubleArray2DManaged(updated.Count, properties);
fixed(double *dst = ret, selectSrc = updated)
for (int i = 0; i < outputCount; i++)
{
var result = selector(selectSrc[i * updated.Properties]);
Guard.AssertTrue(result.Count == outputCount, "Passed outputCount must be matching to the updated array.");
Guard.AssertTrue(properties == result.Properties, "Properties must match the properties argument passed.");
fixed(double *src = result)
Unsafe.CopyBlock(dst, src, (uint)(result.LinearLength * sizeof(double)));
}
idn.Update(time, ret);
};
}
input.Resetted += sender => idn.Reset();
}
}
if (waitForFirstToReady)
{
input.Updated += (time, updated) => {
if (input.IsReady)
{
idn.Update(time, selector(updated));
}
};
}
else
{
input.Updated += (time, updated) => idn.Update(time, selector(updated));
}
input.Resetted += sender => idn.Reset();
return(idn);
}
/// <summary>
/// Selects a <see cref="DoubleArray"/> to a <see cref="double"/>. The result is stored in a <see cref="Identity"/>.
/// </summary>
/// <param name="input">The indicator that sends data via <see cref="IUpdatable.Updated"/></param>
/// <param name="selector">A selector to choose a <see cref="double"/>. </param>
/// <param name="waitForFirstToReady">Input must be ready in order to push the updates forward.</param>
/// <param name="name">Name of the new returned <see cref="Identity"/>.</param>
public static Identity Select(this IUpdatable input, SelectorFunctionHandler selector, bool waitForFirstToReady = true, string name = null)
{
if (selector == null)
{
throw new ArgumentNullException(nameof(selector));
}
var idn = new Identity(ResolveName(input, name), setReady: true);
if (input.OutputCount > 1)
{
unsafe {
if (waitForFirstToReady)
{
input.Updated += (time, updated) => {
if (input.IsReady)
{
var ret = new DoubleArray2DManaged(updated.Count, 1);
fixed(double *dst = ret, src = updated)
for (int i = 0; i < updated.Count; i++)
{
dst[i] = selector(src[i * updated.Properties]);
}
idn.Update(time, ret);
}
};
}
else
{
input.Updated += (time, updated) => {
var ret = new DoubleArray2DManaged(updated.Count, 1);
fixed(double *dst = ret, src = updated)
for (int i = 0; i < updated.Count; i++)
{
dst[i] = selector(src[i * updated.Properties]);
}
idn.Update(time, ret);
};
}
input.Resetted += sender => idn.Reset();
}
}
else
{
if (waitForFirstToReady)
{
input.Updated += (time, updated) => {
if (input.IsReady)
{
idn.Update(time, new DoubleArrayScalar(selector(updated)));
}
};
}
else
{
input.Updated += (time, updated) => idn.Update(time, new DoubleArrayScalar(selector(updated)));
}
input.Resetted += sender => idn.Reset();
}
return(idn);
}