Revision: 6424
http://sourceforge.net/p/jump-pilot/code/6424
Author: ma15569
Date: 2020-09-05 09:45:01 +0000 (Sat, 05 Sep 2020)
Log Message:
-----------
Added method to write raster statistics (max, min, mean,Std) and projection
information to aux.xml file
Modified Paths:
--------------
core/trunk/src/org/openjump/core/rasterimage/GDALPamDataset.java
Modified: core/trunk/src/org/openjump/core/rasterimage/GDALPamDataset.java
===================================================================
--- core/trunk/src/org/openjump/core/rasterimage/GDALPamDataset.java
2020-09-04 09:55:29 UTC (rev 6423)
+++ core/trunk/src/org/openjump/core/rasterimage/GDALPamDataset.java
2020-09-05 09:45:01 UTC (rev 6424)
@@ -2,6 +2,7 @@
import java.io.File;
import java.io.IOException;
+import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
import javax.xml.parsers.DocumentBuilder;
@@ -16,6 +17,9 @@
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
+
+import org.openjump.core.ccordsys.utils.SRSInfo;
+import org.openjump.core.ccordsys.utils.SridLookupTable;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
@@ -24,6 +28,8 @@
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
+import com.vividsolutions.jump.workbench.JUMPWorkbench;
+
/**
*
* @author AdL
@@ -132,6 +138,101 @@
}
+
+ //[Giuseppe Aruta] 2020-09-05
+ //Method to write raster statistics (max, min, mean,Std) and
+ //projection information to aux.xml file
+ // see
https://desktop.arcgis.com/en/arcmap/10.3/manage-data/raster-and-images/auxiliary-files.htm
+ public void writeStatisticsAndSRS(File auxXmlFile, SRSInfo srsInfo, Stats
stats)
+ throws ParserConfigurationException,
TransformerConfigurationException, TransformerException, SAXException,
IOException {
+
+ DocumentBuilderFactory docFactory =
DocumentBuilderFactory.newInstance();
+ DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
+ Document doc;
+
+ Element pamDatasetElement;
+ NodeList pamRasterBandNodeList;
+
+ // Try to read the xml file
+ if(auxXmlFile.isFile()) {
+ try {
+ doc = docBuilder.parse(auxXmlFile);
+ } catch(SAXException | IOException ex) {
+ doc = docBuilder.newDocument();
+ }
+ } else {
+ doc = docBuilder.newDocument();
+ }
+
+ // Check if PAMDataset element exists and, if not, create it
+ String pamDatasetTagName = "PAMDataset";
+ pamDatasetElement = (Element)
doc.getElementsByTagName(pamDatasetTagName).item(0);
+ if(pamDatasetElement == null) {
+ pamDatasetElement = doc.createElement(pamDatasetTagName);
+ }
+
+ //Add SRS element first
+ String SRS;
+ try {
+ SRS =
SridLookupTable.getOGCWKTFromWkidCode(srsInfo.getCode());
+ Element srsElement = doc.createElement("SRS");
+
+ srsElement.appendChild(doc.createTextNode(SRS));
+ pamDatasetElement.appendChild(srsElement);
+ } catch (URISyntaxException | IOException e) {
+ JUMPWorkbench.getInstance()
+ .getFrame()
+ .warnUser("OpenjUMP cannot decode/record SRS");
+ }
+
+ String pamRasterBandTagName = "PAMRasterBand";
+ String bandAttribute = "band";
+ String metadataElementName = "Metadata";
+
+ pamRasterBandNodeList =
pamDatasetElement.getElementsByTagName(pamRasterBandTagName);
+ if(pamRasterBandNodeList != null && pamRasterBandNodeList.getLength()
> 0) {
+ for(int b=0; b<pamRasterBandNodeList.getLength(); b++) {
+ Element pamRasterBandElement = (Element)
pamRasterBandNodeList.item(b);
+ int bandNr =
Integer.parseInt(pamRasterBandElement.getAttribute(bandAttribute));
+
+ if(bandNr == b+1) {
+
+ Element metadataElement = (Element)
pamRasterBandElement.getElementsByTagName(metadataElementName).item(0);
+ metadataElement = updateMetadataElement(doc,
metadataElement, stats, band);
+
+ pamRasterBandElement.appendChild(metadataElement);
+ pamDatasetElement.appendChild(pamRasterBandElement);
+
+ }
+ }
+ } else {
+ for(int b=0; b<stats.getBandCount(); b++) {
+
+ Element pamRasterBandElement =
doc.createElement(pamRasterBandTagName);
+ Attr attr = doc.createAttribute(bandAttribute);
+ attr.setValue(Integer.toString(b+1));
+ pamRasterBandElement.setAttributeNode(attr);
+
+ Element metadataElement =
doc.createElement(metadataElementName);
+ metadataElement = updateMetadataElement(doc, metadataElement,
stats, band);
+ pamRasterBandElement.appendChild(metadataElement);
+ pamDatasetElement.appendChild(pamRasterBandElement);
+ }
+
+ doc.appendChild(pamDatasetElement);
+ }
+
+ // write the content into xml file
+ TransformerFactory transformerFactory =
TransformerFactory.newInstance();
+ Transformer transformer = transformerFactory.newTransformer();
+ transformer.setOutputProperty(OutputKeys.INDENT, "yes");
+
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount";, "2");
+ DOMSource source = new DOMSource(doc);
+ StreamResult result = new StreamResult(auxXmlFile);
+ transformer.transform(source, result);
+
+ }
+
private Element updateMetadataElement(Document doc, Element
metadataElement, Stats stats, int band) {
Element mdi = doc.createElement("MDI");
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