Changes between Version 1 and Version 2 of ossimTraceDebug

Timestamp:

Apr 9, 2009, 11:16:04 AM (15 years ago)

Author:

dburken

Comment:

--

ossimTraceDebug

@@ -1 +1 @@
 
 == Using trace in ossim for debugging: ==
+
+
+To enable trace in an ossim application it is a simple matter of doing an ossim initialize.  Code snip:
+
+{{{
+#include <ossim/init/ossimInit.h>
+int main(int argc, char* argv[])
+{
+   // Adding the call to initialize will enable your application to use trace.
+   ossimInit::instance()->initialize(argc, argv);
+
+   // the rest of your application main:
+
+   return 0;
+}
+}}}
+[[BR]]
+To use trace in a trace enabled application use the -T option followed by some regular expression. [[BR]]
+[[BR]]
+Examples:[[BR]]
+[[BR]]
+// A call to image_info with no trace.  The -d option is to tell image_info to do a "dump" on the file.[[BR]]
+image_info -d image.tif[[BR]]
+[[BR]]
+//---[[BR]]
+// This will turn trace on for anything that starts with "ossim".  Note the '-T ossim' option is being used.[[BR]]
+// Note: Since almost all classes in ossim start with "ossim" this will dump a LOT of stuff.[[BR]]
+//---[[BR]]
+image_info -d -T ossim image.tif[[BR]]
+
+// This will turn trace on for anything matching ossimTiffInfo.[[BR]]
+image_info -d -T ossimTiffInfo image.tif[[BR]]
+
+// This will turn trace on for anything matching ossimTiffInfo.[[BR]]
+image_info -d -T ossimTiffInfo image.tif[[BR]]
+
+//---[[BR]]
+// The ossimTiffInfo class has two separate traces "ossimTiffInfo:debug" and "ossimTiffInfo:dump"[[BR]]
+// This will turn on just "debug"[[BR]]
+//---[[BR]]
+image_info -d -T ossimTiffInfo:debug image.tif[[BR]]
+[[BR]]
+//---[[BR]]
+// This will turn on trace for ossimTiffInfo AND ossimGeoTiff:[[BR]]
+// Note: The OR bar '|' and also the regular expression is quoted.  Also the -i and -p options[[BR]]
+// were added so that the code would go into the ossimGeoTiff class for this example.[[BR]]
+//---[[BR]]
+image_info -i -p -d -T "ossimTiffInfo|ossimGeoTiff" image.tif[[BR]]
+[[BR]]
+//---[[BR]]
+// This is a snip of a real image_info output turning trace on for ossimTiffInfo and ossimGeoTiff.[[BR]]
+// Note:  This is not the whole dump just pieces for demo purposes.[[BR]]
+//---[[BR]]
+[[BR]]
+$ image_info -i -p -d -T "ossimTiffInfo|ossimGeoTiff" imagery_HH.tif[[BR]]
+DEBUG ossimGeoTiff::ossimGeoTiff: Entered...[[BR]]
+DEBUG ossimGeoTiff::ossimGeoTiff: OSSIM_ID =  $Id: ossimGeoTiff.cpp 14039 2009-0[[BR]]
+2-26 23:35:49Z dburken $[[BR]]
+DEBUG ossimGeoTiff::setOssimDatumName: theDatumName:  WGE[[BR]]
+Need to add double param support for projection = ossimEquDistCylProjection[[BR]]
+ossimGeoTiff::print[[BR]]
+theScale is empty...[[BR]]
+ossimGeoTiff::addImageGeometry: Creating a bilinear projection[[BR]]
+tiff.version: 42(classic)[[BR]]
+tiff.byte_order: big_endian[[BR]]
+system_byte_order: little_endian[[BR]]
+DEBUG ossimTiffInfo::readTags: Offset to first ifd:  212115324[[BR]]
+tiff.directory_offset: 212115324[[BR]]
+DEBUG ossimTiffInfo::readTags:[[BR]]
+ifd:  212115324[[BR]]
+tags in directory:  20[[BR]]
+DEBUG ossimTiffInfo::print DEBUG:[[BR]]
+tag[0]:256[[BR]]
+type:                3[[BR]]
+count:        1[[BR]]
+array size in bytes: 2[[BR]]
+tiff.image0.image_width: 10507[[BR]]
+
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