public void ReadTooManyPixels()
{
ErdasImageFile image = null;
try {
image = new ErdasImageFile(inputLanImagePath, RWFlag.Read);
FredLanPixel pixel = new FredLanPixel();
int pixCount = image.Dimensions.Rows * image.Dimensions.Columns;
for (int i = 0; i < pixCount; i++)
{
image.ReadPixel(pixel);
}
// one too many
image.ReadPixel(pixel);
}
catch (System.Exception exc) {
Data.Output.WriteLine(exc.Message);
throw;
}
finally {
if (image != null)
{
image.Close();
}
}
}
public void ReadFromWritable1()
{
ErdasImageFile image = null;
try {
image = new ErdasImageFile(Data.MakeOutputPath("junk.gis"),
new Dimensions(10, 10),
1,
System.TypeCode.Byte,
null);
Erdas74Pixel8 pixel = new Erdas74Pixel8();
// read after opening for Write
image.ReadPixel(pixel);
}
catch (System.Exception exc) {
Data.Output.WriteLine(exc.Message);
throw;
}
finally {
if (image != null)
{
image.Close();
}
}
}
public void WritePixels()
{
Erdas74Pixel8 pixel = new Erdas74Pixel8();
ErdasImageFile
image = new ErdasImageFile(outputGisImagePath,
new Dimensions(10, 10),
1,
System.TypeCode.Byte,
null);
byte[] bytes = new byte[1];
bytes[0] = 1;
pixel[0].SetBytes(bytes, 0);
int pixCount = image.Dimensions.Rows * image.Dimensions.Columns;
for (int i = 0; i < pixCount; i++)
{
image.WritePixel(pixel);
}
image.Close();
}
public void OpenExistingWritable()
{
ErdasImageFile
image = new ErdasImageFile(outputGisImagePath, RWFlag.Write);
image.Close();
}
public void OpenExistingReadOnly()
{
ErdasImageFile
image = new ErdasImageFile(inputGisImagePath, RWFlag.Read);
image.Close();
}
public void ReadPixels()
{
ErdasImageFile
image = new ErdasImageFile(inputLanImagePath, RWFlag.Read);
FredLanPixel pixel = new FredLanPixel();
int pixCount = image.Dimensions.Rows * image.Dimensions.Columns;
for (int i = 0; i < pixCount; i++)
{
image.ReadPixel(pixel);
}
image.Close();
}
public void ConstructNewGis()
{
ErdasImageFile
image = new ErdasImageFile(outputGisImagePath,
new Dimensions(60, 40),
1,
System.TypeCode.Byte,
null);
Assert.AreEqual(60, image.Dimensions.Rows);
Assert.AreEqual(40, image.Dimensions.Columns);
Assert.AreEqual(1, image.BandCount);
Assert.AreEqual(System.TypeCode.Byte, image.BandType);
Assert.AreEqual(null, image.Metadata);
image.Close(); // needed or file stays locked after run of tests. why?
}
public void ConstructNewLan()
{
ErdasImageFile
image =
new ErdasImageFile(outputLanImagePath,
new Dimensions(100, 50),
2,
System.TypeCode.UInt16,
null);
Assert.AreEqual(100, image.Dimensions.Rows);
Assert.AreEqual(50, image.Dimensions.Columns);
Assert.AreEqual(2, image.BandCount);
Assert.AreEqual(System.TypeCode.UInt16, image.BandType);
Assert.AreEqual(null, image.Metadata);
image.Close(); // needed or file stays locked after run of tests. why?
}
public void Init()
{
gisImagePath = Data.MakeOutputPath("OutputRasterTests.gis");
ErdasImageFile image;
image = new ErdasImageFile(gisImagePath,
new Dimensions(60, 40),
1,
System.TypeCode.Byte,
null);
image.Close();
lanImagePath = Data.MakeOutputPath("OutputRasterTests.lan");
image = new ErdasImageFile(lanImagePath,
new Dimensions(100, 50),
2,
System.TypeCode.UInt16,
null);
image.Close();
}
private void TryCtor <T>(string imagePath,
RWFlag rwFlag)
where T : IPixel, new()
{
ErdasImageFile image = null;
try {
image = new ErdasImageFile(imagePath, rwFlag);
OutputRaster <T> raster = new OutputRaster <T>(image);
}
catch (System.Exception exc) {
Data.Output.WriteLine(exc.Message);
throw;
}
finally {
if (image != null)
{
image.Close();
}
}
}
public void WriteTooManyPixels()
{
ErdasImageFile image = null;
try {
Erdas74Pixel8 pixel = new Erdas74Pixel8();
image = new ErdasImageFile(outputGisImagePath,
new Dimensions(10, 10),
1,
System.TypeCode.Byte,
null);
byte[] bytes = new byte[1];
bytes[0] = 1;
pixel[0].SetBytes(bytes, 0);
int pixCount = image.Dimensions.Rows * image.Dimensions.Columns;
for (int i = 0; i < pixCount; i++)
{
image.WritePixel(pixel);
}
// one too many
image.WritePixel(pixel);
}
catch (System.Exception exc) {
Data.Output.WriteLine(exc.Message);
throw;
}
finally {
if (image != null)
{
image.Close();
}
}
}
public void WriteToReadable()
{
ErdasImageFile image = null;
try {
image = new ErdasImageFile(Data.MakeOutputPath("junk.gis"),
RWFlag.Read);
Erdas74Pixel8 pixel = new Erdas74Pixel8();
// write after opening for Read
image.WritePixel(pixel);
}
catch (System.Exception exc) {
Data.Output.WriteLine(exc.Message);
throw;
}
finally {
if (image != null)
{
image.Close();
}
}
}
