public void Raster8ConstructorTest()
{
// normal parameters
for (Int32 numberOfBands = 0; numberOfBands < 10; numberOfBands++)
{
for (Int32 numberOfRows = 0; numberOfRows < 1000; numberOfRows += 250)
{
for (Int32 numberOfColumns = 0; numberOfColumns < 1000; numberOfColumns += 250)
{
Raster8 raster = new Raster8(null, numberOfBands, numberOfRows, numberOfColumns, 8, null);
Assert.AreEqual(numberOfBands, raster.NumberOfBands);
Assert.AreEqual(numberOfRows, raster.NumberOfRows);
Assert.AreEqual(numberOfColumns, raster.NumberOfColumns);
Assert.AreEqual(8, raster.RadiometricResolution);
Assert.AreEqual(RasterFormat.Integer, raster.Format);
Assert.IsFalse(raster.IsMapped);
Assert.IsTrue(raster.IsReadable);
Assert.IsTrue(raster.IsWritable);
Assert.IsInstanceOf <RasterFactory>(raster.Factory);
Assert.IsTrue(raster.HistogramValues.All(values => values.Sum() == raster.NumberOfColumns * raster.NumberOfRows && values[0] == raster.NumberOfColumns * raster.NumberOfRows));
}
}
}
// argument out of range exceptions
Assert.Throws <ArgumentOutOfRangeException>(() => { Raster8 raster = new Raster8(null, -1, 1, 1, 1, null); });
Assert.Throws <ArgumentOutOfRangeException>(() => { Raster8 raster = new Raster8(null, 1, -1, 1, 1, null); });
Assert.Throws <ArgumentOutOfRangeException>(() => { Raster8 raster = new Raster8(null, 1, 1, -1, 1, null); });
Assert.Throws <ArgumentOutOfRangeException>(() => { Raster8 raster = new Raster8(null, 1, 1, 1, -1, null); });
Assert.Throws <ArgumentOutOfRangeException>(() => { Raster8 raster = new Raster8(null, 1, 1, 1, 65, null); });
}
public void Raster8ValueTest()
{
Raster8 raster = new Raster8(null, 3, 9, 27, 8, null);
// single values
for (Int32 bandIndex = 0; bandIndex < raster.NumberOfBands; bandIndex++)
{
for (Int32 rowIndex = 0; rowIndex < raster.NumberOfRows; rowIndex++)
{
for (Int32 columnIndex = 0; columnIndex < raster.NumberOfColumns; columnIndex++)
{
raster.SetValue(rowIndex, columnIndex, bandIndex, (UInt32)(bandIndex * rowIndex * columnIndex));
Assert.AreEqual((bandIndex * rowIndex * columnIndex) % (Byte.MaxValue + 1), raster.GetValue(rowIndex, columnIndex, bandIndex), 0);
}
}
}
// test case 2: multiple values
for (Int32 rowIndex = 0; rowIndex < raster.NumberOfRows; rowIndex++)
{
for (Int32 columnIndex = 0; columnIndex < raster.NumberOfColumns; columnIndex++)
{
raster.SetValues(rowIndex, columnIndex, new UInt32[] { (UInt32)rowIndex, (UInt32)columnIndex, (UInt32)(rowIndex * columnIndex) });
Assert.AreEqual(rowIndex, raster.GetValues(rowIndex, columnIndex)[0], 0);
Assert.AreEqual(columnIndex, raster.GetValues(rowIndex, columnIndex)[1], 0);
Assert.AreEqual(rowIndex * columnIndex, raster.GetValues(rowIndex, columnIndex)[2], 0);
}
}
// test case 3: argument out of range exceptions
Assert.Throws <ArgumentOutOfRangeException>(() => raster.GetValue(-1, 0, 0));
Assert.Throws <ArgumentOutOfRangeException>(() => raster.GetValue(raster.NumberOfRows, 0, 0));
Assert.Throws <ArgumentOutOfRangeException>(() => raster.GetValue(0, -1, 0));
Assert.Throws <ArgumentOutOfRangeException>(() => raster.GetValue(0, raster.NumberOfColumns, 0));
Assert.Throws <ArgumentOutOfRangeException>(() => raster.GetValue(0, 0, -1));
Assert.Throws <ArgumentOutOfRangeException>(() => raster.GetValue(0, 0, raster.NumberOfBands));
Assert.Throws <ArgumentOutOfRangeException>(() => raster.SetValue(-1, 0, 0, 0));
Assert.Throws <ArgumentOutOfRangeException>(() => raster.SetValue(raster.NumberOfRows, 0, 0, 0));
Assert.Throws <ArgumentOutOfRangeException>(() => raster.SetValue(0, -1, 0, 0));
Assert.Throws <ArgumentOutOfRangeException>(() => raster.SetValue(0, raster.NumberOfColumns, 0, 0));
Assert.Throws <ArgumentOutOfRangeException>(() => raster.SetValue(0, 0, -1, 0));
Assert.Throws <ArgumentOutOfRangeException>(() => raster.SetValue(0, 0, raster.NumberOfBands, 0));
}
public void Raster8HistogramTest()
{
Int32[] histogramValues = new Int32[Byte.MaxValue + 1];
Random random = new Random();
Raster8 raster = new Raster8(null, 1, 100, 100, 8, null);
for (Int32 rowIndex = 0; rowIndex < raster.NumberOfRows; rowIndex++)
{
for (Int32 columnIndex = 0; columnIndex < raster.NumberOfColumns; columnIndex++)
{
Byte value = (Byte)random.Next();
raster.SetValue(rowIndex, columnIndex, 0, value);
histogramValues[value]++;
}
}
for (Int32 valueIndex = 0; valueIndex < raster.GetHistogramValues(0).Count; valueIndex++)
{
Assert.AreEqual(histogramValues[valueIndex], raster.GetHistogramValues(0)[valueIndex]);
}
}
