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[Geotools-gt2-users] using the GeoTiff Reader
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From: Scott P. <sco...@ho...> - 2005-10-13 12:33:33
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<html><p>Hi,<br>
</p>
<p><br>
I am using the GeoTiffReader. Here is a code snippet from my application:<br>
</p>
<p> //getting a reader<br>
AbstractGridFormat format = new GeoTiffFormat();<br>
<br>
if (format.accepts(image)) {<br>
GridCoverageReader reader = new GeoTiffReader(format, image, null);<br>
GridCoverage gc = null;<br>
try {<br>
gc = reader.read(null);<br>
} catch (IOException ioe) {<br>
System.out.println(ioe.getMessage());<br>
}<br>
...<br>
</p>
<p>With this code snippet, I occassionally get the following error:<br>
</p>
<p><b><br>
</b></p>
<p><b>exception</b> </p>
<pre>org.apache.jasper.JasperException: String index out of range: -47<br> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:370)<br> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)<br> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)<br> javax.servlet.http.HttpServlet.service(HttpServlet.java:802)<br> org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:362)<br></pre>
<p><b>root cause</b> </p>
<pre>java.lang.StringIndexOutOfBoundsException: String index out of range:
-47<br> java.lang.String.substring(String.java:1768)<br> org.geotools.gce.geotiff.GeoTiffIIOMetadataAdapter.getTiffAscii(GeoTiffIIOMetadataAdapter.java:1097)<br> org.geotools.gce.geotiff.GeoTiffIIOMetadataAdapter.getGeoKey(GeoTiffIIOMetadataAdapter.java:771)<br> org.geotools.gce.geotiff.GeoTiffException.getMessage(GeoTiffException.java:196)<br> edu.psu.geovista.gccm.FileUpload.getEmbeddedCoords(FileUpload.java:352)<br> org.apache.jsp.geoTiffOverlay_jsp._jspService(org.apache.jsp.geoTiffOverlay_jsp:73)<br> org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)<br> javax.servlet.http.HttpServlet.service(HttpServlet.java:802)<br> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)<br> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)<br> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)<br> javax.servlet.http.Htt
pServlet.service(HttpServlet.java:802)<br> org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:362)<br></pre>
<br>What is unusual is that the error only seems to occur with some
GeoTiff Images. Some of the images work and some I get this error. Does
anyone know what might be going on here?<br>
<br>
Also, does anyone have any sample code for how I would use the
GeoTiffReader if the GeoTiff image that I am using has an asscoiated
world file?<br>
<br>
Thanks,<br>
Scott<br></html>
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