Re: [Geotools-devel] Introduction as new developers
Hi Jody, I just looked over the document and it is up to date with the current geotools referencing code (using geoapi interfaces). There are some incomplete sections (such as Conventions and Internationalization), but the tutorial should point people to the right direction to get started when implementing a new map projection. The tutorial is geared more towards new developers, instead of uses, so I don't know if it should be part of the users guide (there is a separate tutorial for using the geotools referencing code). Rueben On Thu, 2007-01-02 at 11:30 -0800, Jody Garnett wrote: Hi Rueben :-D I am starting to round up good examples and tutorials from our wiki - if you say this is up to date can I move it over to the user guide space? Cheers, Jody - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642 ___ Geotools-devel mailing list Geotools-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-devel
Re: [Geotools-devel] Introduction as new developers
Hello Olaf,
I have not been very involved in the geotools project over the last few
years, but I am the author of the How to add new projections tutorial.
It appears that it is mostly up to date. The tutorial, the existing
implementations and some of the linked references should be enough to
get the projections you need implemented.
I have limited time right now, but if you have any projection
questions/problems email the developer list and Martin or I will be
happy to answer you. I try to skim the geotools email list, but feel
free to CC me with projection questions as well.
Rueben
- show the map under different projections
The last point is important regarding our potential contribution to
Geotools. Besides a standard rectangular cylindric projection, we will
need at least an AzimuthalEquidistant and a Gnomonic projection which
are obviously not yet supplied by Geotools (package org
javascript:searchRef('org').geotools
javascript:searchRef('geotools').referencing
javascript:searchRef('referencing').operation
javascript:searchRef('operation').projection).
javascript:searchRef('projection') Therefore, we will have to go and
add these projections following your tutorial
(http://docs.codehaus.org/display/GEOTOOLS/How+to+add+new+projections).
- You may also regard this email as step 0 of that tutorial ;-)
Questions we may have in future will regard these projection topics, but
also the rendering and performance issues, which are also very important
for us.
With best regards,
Olaf Danne (Brockmann Consult)
-
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier.
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642
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[Geotools-devel] Re: NZMG
Hi Justin, Thank you for the new projection. I have hardly had any time to do any geotools work in the last half year, but 2.2 already has two new projections! I wont have much time to review this until the weekend, but here are a few comments after looking at the code for 5 minutes (they build on Martin's comments). When the class inherits from MapProjection, you will no longer need the a, Eo, No fields, since they are in MapProjection and called semiMajor, falseEasting and falseNorthing. Also, MapProjection will get these values from the projection parameters, so you will not want to hard code in a value for a (though this projection is only used with one set of parameters). I cannot remember if there is a way to set a default value for parameters, but there used to be in geotools 2.0. Also, in keeping with the naming conventions in the projection subpackage, the class should probably be renamed to the full NewZealandMapGrid. If no one get around to making these changes by saturday, I will do them. Rueben On Tue, 2005-06-12 at 22:11 -0800, Justin Deoliveira wrote: Hi Mark, Thanks for sending the kick me in the pants email or I would have put this off even longer. It was just that going through a bunch of complex formulas to figure out where i was losing 0.001 degrees was not at the top of my list. I am sure you can understand :) But I sucked it up and figured out what the problem was so things should be fine now. Rueben, if you want to do a code review that would be great. The relevant class is NZMGTransform. If someone on the udig team can build a new main jar from the latest geotools trunk so Mark can try it out that would be great. I am sure they will be tommorow with all the style madness going on. -Justin --- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637alloc_id=16865op=click ___ Geotools-devel mailing list Geotools-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-devel
