@Test
public void load() throws Exception {
PgmLoader pgmLoader = new PgmLoader(testFileFolder + file);
DataHolder dataHolder = pgmLoader.loadFile();
assertEquals(pgmLoader.getHeaderValue("MagicNumber"), "P5");
assertEquals(pgmLoader.getHeaderValue("Width"), "1024");
assertEquals(pgmLoader.getHeaderValue("Height"), "1024");
assertEquals(pgmLoader.getHeaderValue("Maxval"), "65535");
Dataset data = dataHolder.getDataset("Portable Grey Map");
// Check the first data point
assertEquals(data.getDouble(0, 0), 0.0, 0.0);
// Check the middle data point
assertEquals(data.getDouble(512, 511), 15104.0, 0.0);
// Check the last data point
assertEquals(data.getDouble(1023, 1023), 0.0, 0.0);
}
@Test
public void testSaveFile() throws ScanFileHolderException {
Dataset a = DatasetFactory.createRange(128 * 128, Dataset.FLOAT32).reshape(128, 128);
DataHolder d = new DataHolder();
a.idivide(10000);
d.addDataset("a", a);
String oname = testScratchDirectoryName + "a.tif";
TIFFImageSaver s;
DataHolder in;
s = new TIFFImageSaver(oname, true);
s.saveFile(d);
in = new TIFFImageLoader(oname).loadFile();
checkDataset(a, in.getDataset(0));
s = new TIFFImageSaver(oname);
s.saveFile(d);
in = new TIFFImageLoader(oname).loadFile();
checkDataset(a.cast(Dataset.INT32), in.getDataset(0));
}
