Changes between Initial Version and Version 1 of ECW

Timestamp:

Apr 7, 2007, 4:55:18 PM (17 years ago)

Author:

Mateusz Łoskot

Comment:

Started ECW wikipage

ECW

@@ +1 @@
+= ECW =
+
+http://www.gdal.org/frmt_ecw.html
+
+== Download ECW JPEG SDK ==
+
+In order to use ECW format with GDAL, you need to download Image Compression SDK from [http://www.ermapper.com/ ER Mapper] website.
+The SDK is available to download for logged in users on the website, so first you will need to register.
+
+== Building libecwj library on Unix ==
+
+In order to use GDAL with ECW support under Linux, Solaris or Mac OS systems, you will need to build the '''libecwj''' library on your own, so it's required to download '''Image Compression SDK Source Code''' but not the binary distribution which is dedicated for Windows family systems. Current version is ECW SDK 3.3 and the source code package is named '''libecwj2-3.3-2006-09-06.zip'''.
+
+The source code is equipped with '''configure''' and Makefile.in scripts. There is also an utility script called '''bootstrap''' that can be used to regenerate the '''configure''' and Makefile.in files, if you have installed required tools: autoconf, automake, m4, libtool.
+
+In the former case, the procedure is simple:
+
+{{{
+$ cd /path/to/libecwj2-3.3
+$ ./configure
+$ make
+# make install
+}}}
+
+where the last step should be run as superuser.
+
+By default, the '''libecwj''' is installed using installation prefix pointing to '''/usr/local'''. You can change this location with '''--prefix''' option of '''configure''' script. Run ''./configure --help'' for more details.
+
+== Building GDAL with ECW support on Unix ==
+
+Assuming you've installed '''libecwj''' library under default location, procedure of adding ECW support to GDAL is simple and you only need to provide GDAL '''configure''' with path to the ECW SDK installation prefix:
+
+{{{
+$ cd /path/to/gdal
+$ ./configure --with-ecw=/usr/local
+$ make
+# make install
+}}}
+
+After these steps, you should be able to see the ECW in the list of formats supported by your GDAL installation:
+
+{{{
+$ gdalinfo --formats|grep ECW
+  ECW (rw): ERMapper Compressed Wavelets
+  JP2ECW (rw+): ERMapper JPEG2000
+}}}
+
+== Building GDAL with ECW support on Windows ==
+
+ ''TO BE DONE''
+