Revision: 6515
http://sourceforge.net/p/jump-pilot/code/6515
Author: ma15569
Date: 2020-09-22 12:04:10 +0000 (Tue, 22 Sep 2020)
Log Message:
-----------
Added comments to Javadoc
Modified Paths:
--------------
core/trunk/src/org/openjump/core/rasterimage/TiffUtilsV2.java
Modified: core/trunk/src/org/openjump/core/rasterimage/TiffUtilsV2.java
===================================================================
--- core/trunk/src/org/openjump/core/rasterimage/TiffUtilsV2.java
2020-09-22 11:30:56 UTC (rev 6514)
+++ core/trunk/src/org/openjump/core/rasterimage/TiffUtilsV2.java
2020-09-22 12:04:10 UTC (rev 6515)
@@ -89,6 +89,23 @@
renderedOp = JAI.create("scale", parameterBlock);
return JAI.create("scale", parameterBlock);
}
+
+ /**
+ * Method to buid an ImageAndMetadata file
+ * An ImageAndMetadata groups the Envelope, the Image, the Statistics and
+ * NoData value of a TIF file
+ * @param tiffFile
+ * @param viewportEnvelope
+ * @param requestedRes
+ * @param overviews
+ * @param stats
+ * @return ImageAndMetadata
+ * @throws NoninvertibleTransformException
+ * @throws IOException
+ * @throws FileNotFoundException
+ * @throws TiffTags.TiffReadingException
+ * @throws Exception
+ */
public static ImageAndMetadata readImage(File tiffFile, Envelope
viewportEnvelope, Resolution requestedRes,
Overviews overviews, Stats stats) throws
NoninvertibleTransformException, IOException, FileNotFoundException,
TiffTags.TiffReadingException, Exception {
@@ -101,14 +118,16 @@
Double noData = tiffMetadata.getNoData();
// Now try with tfw
- if (cellSize == null) {
+ /* if (cellSize == null) {
WorldFileHandler worldFileHandler = new
WorldFileHandler(tiffFile.getAbsolutePath(), true);
Envelope envelope =
worldFileHandler.readWorldFile(originalImageWidth, originalImageHeight);
cellSize = new Resolution(envelope.getWidth() /
originalImageWidth, envelope.getHeight() / originalImageHeight);
- }
+ }*/
- Envelope wholeImageEnvelope =
RasterImageIO.getGeoReferencing(tiffFile.getAbsolutePath(), true,
- new Point(originalImageWidth, originalImageHeight));
+ Envelope wholeImageEnvelope = getEnvelope(tiffFile);
+
+
//RasterImageIO.getGeoReferencing(tiffFile.getAbsolutePath(), true,
+ // new Point(originalImageWidth, originalImageHeight));
if (requestedRes == null) {
requestedRes = cellSize;
@@ -183,6 +202,21 @@
}
+ /**
+ * Method to read overviews of a TIF
+ * @param tiffFile
+ * @param overviewIndex
+ * @param indexStart
+ * @param originalSize
+ * @param originalCellSize
+ * @param wholeImageEnvelope
+ * @param viewportEnvelope
+ * @param noDataValue
+ * @param stats
+ * @return
+ * @throws IOException
+ * @throws NoninvertibleTransformException
+ */
private static ImageAndMetadata readImage(File tiffFile, int
overviewIndex, int indexStart, Point originalSize,
Resolution originalCellSize, Envelope wholeImageEnvelope,
Envelope viewportEnvelope, double noDataValue,
Stats stats) throws IOException, NoninvertibleTransformException {
@@ -246,6 +280,19 @@
}
+ /**
+ * Method to read Statistics of TIF file (if available) on the file
itself or
+ * from an external aux.xml file
+ * @param tiffFile
+ * @param noDataValue
+ * @param imageFile
+ * @return
+ * @throws ParserConfigurationException
+ * @throws TransformerException
+ * @throws ImageReadException
+ * @throws IOException
+ * @throws SAXException
+ */
private static Stats calculateStats(File tiffFile, double
noDataValue, File imageFile)
throws ParserConfigurationException, TransformerException,
ImageReadException, IOException, SAXException {
@@ -286,7 +333,18 @@
return createStatsXml(tiffFile, noDataValue, auxXmlFile);
}
-
+ /**
+ * Method to compute statistic of a TIF file and write as aux.xml file
+ * @param tiffFile
+ * @param noDataValue
+ * @param auxXmlFile
+ * @return
+ * @throws ParserConfigurationException
+ * @throws TransformerException
+ * @throws TransformerConfigurationException
+ * @throws SAXException
+ * @throws IOException
+ */
private static Stats createStatsXml(File tiffFile, double
noDataValue, File auxXmlFile)
throws ParserConfigurationException, TransformerException,
TransformerConfigurationException, SAXException,
IOException {
@@ -363,6 +421,15 @@
}
+ /**
+ * Method to read the value of a cell at defined position on the
raster
+ * @param tiffFile
+ * @param col
+ * @param row
+ * @param band
+ * @return
+ * @throws Exception
+ */
public static Double readCellValue(File tiffFile, int col, int row,
int band) throws Exception {
Rectangle rectangle = new Rectangle(col, row, 1, 1);
return
getRenderedOp(tiffFile).getData(rectangle).getSampleDouble(col, row, band);
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