public void LanczosResamplingAlgorithmComputeTest()
{
LanczosResamplingAlgorithm algorithm = new LanczosResamplingAlgorithm(_rasterMock.Object);
for (Double rowIndex = 0; rowIndex < _rasterMock.Object.NumberOfRows; rowIndex += 0.41)
{
for (Double columnIndex = 0; columnIndex < _rasterMock.Object.NumberOfColumns; columnIndex += 0.41)
{
Int32 rowFloor = (Int32)Math.Floor(rowIndex);
Int32 columnFloor = (Int32)Math.Floor(columnIndex);
for (Int32 bandIndex = 0; bandIndex < _rasterMock.Object.NumberOfBands; bandIndex++)
{
Double minValue = Double.MaxValue, maxValue = Double.MinValue;
for (Int32 i = rowFloor - algorithm.Radius + 1; i <= rowFloor + algorithm.Radius; i++)
{
for (Int32 j = columnFloor - algorithm.Radius + 1; j <= columnFloor + algorithm.Radius; j++)
{
UInt32 value = _rasterMock.Object.GetBoxedValue(i, j, bandIndex);
minValue = Math.Min(minValue, value);
maxValue = Math.Max(maxValue, value);
}
}
Double strategyValue = algorithm.Compute(rowIndex, columnIndex, bandIndex);
Assert.GreaterOrEqual(strategyValue, minValue);
Assert.LessOrEqual(strategyValue, maxValue);
}
}
}
}
public void LanczosResamplingAlgorithmConstructorTest()
{
LanczosResamplingAlgorithm algorithm = new LanczosResamplingAlgorithm(_rasterMock.Object);
Assert.AreEqual(3, algorithm.Radius);
algorithm = new LanczosResamplingAlgorithm(_rasterMock.Object, 5);
Assert.AreEqual(5, algorithm.Radius);
Assert.Throws <ArgumentNullException>(() => algorithm = new LanczosResamplingAlgorithm(null));
Assert.Throws <ArgumentOutOfRangeException>(() => algorithm = new LanczosResamplingAlgorithm(_rasterMock.Object, 0));
}
