Working with the CRS code.
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Hi Landon,
Sunburned Surveyor wrote: > I've been pouring over the Javadoc for the CRS code in both deegree > and Geotools for the last few days. I'm trying to implement some > common map projection support for OpenJUMP/BizzJUMP. I must admit that > both libraries seem to have more complexity than I need, although the > Geotools seems to be a good deal more complex than deegree code. Thanks, I guess. > > I was thinking about forking the deegree code, stripping out what I > didn't need, and tweaking the rest to meet my needs. However, I am > loathe to duplicate any more effort in the Java GIS world. :] > > Would any deegree programmers be willing to work with me on some > improvements to the CRS code? I'm not talking about writing code, just > about answering questions and reviewing proposed changes/patches. Sure, no problemo, just send them to the list. I'll try to answer your questions and review your patches. > > I'd also like to know if there would be any objection to my packaging > just the CRS code as a separate JAR if needed, after some improvements > were made. No, the code is LGPL you can do with it what you see fit. > > At any rate, I'm not trying to rock the boat, just looking for ways to > work together instead of apart. No rockin's ;-) done, we are always open to code reviews / proposals. > > It seems I keep bumping into the need for this CRS code every few > months, and I need to bite the bullet and get something done. > > Landon > with kind regards, Rutger -- Rutger Bezema l a t / l o n GmbH Aennchenstrasse 19 53177 Bonn, Germany phone ++49 +228 184960 fax ++49 +228 1849629 http://www.lat-lon.de http://www.deegree.org ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ deegree-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/deegree-devel |
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Hi Landon,
A late reply is better than no reply :-) Sunburned Surveyor wrote: > Rutger, > > Great. I will try to incorporate your answers into some Javadoc/Source > code comments. That would be great, keeping javadoc in sink with the code is always a problem ;-) > > Here are a couple of questions to help me get started: > > The org.deegree.crs.Identifiable class has the methods getIdentifiers, > getNames, and getVersions, getAreasOfUse. Is this to support > coordinate reference systems that have more than one > name/identifier/version? yes > If this is the case, do the singular versions > of these methods return the "primary" or "default" > name/identifier/version? the primary, (javadoc is up-to-date) > > Is there a set format for the results of the toString method in > Identifiable? no > > What is the difference between the name returned by > Identifiable.getName and Identifiable.getIdentifier? The name is a HumanReadable one, the identifier identifies the crs. > Does the > getIdAndName method return the two (2) values separated by a space or > some other character? ... lets see.. id: the_identifier, name: the_name > > I was hoping to build a CRSProvider that would create and return > org.deegree.crs.coordinatesystems.CoordinateSystem objects from a > folder containing individual text files, where each text file > contained a WKT definition of a Coordinate Reference System. I should > be able to do this by umplementing the > org.deegree.configuration.CRSPRovider interface, correct? yes > Does deegree have code to read/write CRS definitions in WKT format? deegree2 not, but deegree3 has rudimentary WKT support. > > Does the String argument passed to the CRSProvider.getCRSByID method > correspond to the value returned by Identifiable.getName or > Identifiable.getIdentifier, or both? the last, Identifiable.getIdentifier > > What is the intended purpose of the CRSProvider.export method? Is it > to place the String representation of each CoordinateSystem in the > list provided as an argument into a StringBuilder? > The export method can be used to export a given CRS to the implementations format, e.g. a proj4 format or a deegree internal xml structure. > > Thanks for the help. no worries. > > You wrote: "No rockin's ;-) done, we are always open to code reviews / > proposals." > > Great! I'm going to get a copy of the CRS code into my SVN repository > so I can start poking around. Should I use the deegree 2.2 zip file of > source code, or something more current? mmm, you could checkout the current d2 version at: https://svn.wald.intevation.org/svn/deegree/base/trunk/ or the current d3 version at svn checkout https://svn.wald.intevation.org/svn/deegree/deegree3/core/trunk/ choose which version you prefer. The latter has wkt support but the crs code is conceptually the same. with kind regards, Rutger -- Rutger Bezema l a t / l o n GmbH Aennchenstrasse 19 53177 Bonn, Germany phone ++49 +228 184960 fax ++49 +228 1849629 http://www.lat-lon.de http://www.deegree.org ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ deegree-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/deegree-devel |
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