Re: [Geotools-gt2-users] GT2 Apple OS-X Install

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Hello,

On Sat, 2005-19-03 at 15:06 -0500, ada...@ma... wrote:
> Hi,
> New to Geotools, I'm experiencing difficulty installing/building the necessary
> libraries on Apple OS-X 10.3.8. Has anyone out there managed to install
> GeoTools 2 on a Mac? A straight-fwd procedure would be a big help.

I am one of the few geotools people with a mac, and have done some
geotools work on it (though I mostly use linux). I originally wrote the
information about geotools and mac last summer, so it is probably out of
date by now.

> 
> For me, Maven fails to build, reporting it cannot find JAI. In more detail
> problems are as follows:
> 
> 1. Geotools doco is incorrect at
> http://www.geotools.org/6+Can+Geotools2+be+used+on+Mac+OS+X
> E.g. The code fragment given is not present in maven.xml file of Geotools 2.0.0
> src Stable Download.

The maven.xml file likely changed. My suggestion is to search the
maven.xml file for the error message you are getting and to comment it
out. I just looked at the 2.0 file and I would guess that the following
section needs to be commented out:

Once you comment this out (), you can build geotools with maven.
Some modules might fail without jai, but the majority should build fine.

> 
> 2. Downloading necessary JAI files from
> http://developer.apple.com/releasenotes/Java/Java3D_JAI14RN/
> gives dubious results: Clicking the ‘Custom’ install option reveals that JAI
> will not be installed (and ofcourse JAI-ImageIO-Tools for OS-X are not supplied
> by Apple or Sun). Only Java3d is installed. 

I used the packages downloaded from the following link. They worked fine
for me last summer and appear to still be available:

http://www.apple.com/downloads/macosx/apple/java3dandjavaadvancedimagingupdate.html

With this installed, more of the geotools library can build.

> Even if JAI was installed, it
> appears the files would be placed in /System/Library/Java/Extensions/... , not
> where Geotools/maven.xml apparently expects to find them, in
> javax.media.jai.JAI. 

This does not matter: as long as the jars in Java/Extensions/... are on
the classpath they will be found (javax.media.jai is a package name, not
a file system hierarchy). 

Also note that maven.xml might be searching for classes in the image_io
extensions, so it may still give an error message even if you have the
jai update installed from apple (I cannot remember).

> Has anyone managed to install JAI on their Apple with OS X
> 10.3.8? 

I did it successfully last summer on 10.3.4 (using the "Java 3D and Java
Advanced Imaging Update" from apple). I also manually installed the pure
java parts of the JAI image_io extensions (using the jar for linux). I
copied the image_io files
to /System/Library/Frameworks/JavaVM.framework/Versions/1.4.2/Home/lib/ext. But be careful. I remember that the way apple organized things was very confusing (they had lots of links to other directories). The location I used is similar to where extensions are installed on linux, but the /System/Library/Java/Extensions/ location might work also.

> Can maven.xml be edited to the location where Apple puts the JAI files?

Should not be needed (comment out the check for jai).

> 
> 3. It appears Apple will only supply .jnilib files, not .jar as I'd expect. If I
> can install JAI and have Maven see it, will these work okay with the build?

I have no idea.

> 
> All this is killing me... Any advice much appreciated!
> 

It is possible to get most of geotools running on mac, so keep trying.
If you get stuff to work, please update the wiki (or leave a comment) so
that future mac people will have less trouble.

With JAI (from apple) and image_io (installed jar by hand) I was able to
compile the 2.0 release without any modifications.

Rueben

Re: [Geotools-gt2-users] GT2 Apple OS-X Install

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Re: [Geotools-gt2-users] GT2 Apple OS-X Install