Re: [JPP-Devel] [Geotools-devel] Google Summer of Code

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Hei Sun,

why do you speak in points [1] to [3] about Kosmo and not SkyJUMP?

stefan

Sunburned Surveyor schrieb:
> Larry,
>  
> I'm not quite sure about your plans for work on SkyJUMP, and I know your 
> flexibility with the project is limited by some government restrictions. 
> However, I have set up a section of the JPP wiki for collaborative 
> development, and there is a page there for SkyJUMP.
>  
> If you think you will be able to participate in the collaborative 
> development of OpenJUMP I invite you to participate. I'm sure you are 
> very busy, but if you get time and want to participate It would be great 
> to have the following three things done:
>  
> [1] Provide me with a "Java Package Map" for Kosmo that I can post on 
> the wiki.
> [2] Send me a brief e-mail when new classes/interfaces are added to an 
> official release of Kosmo, or when existing classes/interfaces are 
> modified in Kosmo.
> [3] Select 2 or 3 of the improvements to Kosmo that you would like to 
> see in OpenJUMP.
>  
> Let me know what you think of this. If you don't think you'll be able to 
> participate in this because of your particular situation, I understand, 
> and I'll remove the SkyJUMP page from the wiki.
>  
> I look forward to hearing from you.
>  
> Landon
> 
> 
>  
> On 2/27/07, *Larry Becker* <bec...@gm... 
> <mailto:bec...@gm...>> wrote:
> 
>     I just had a look at some of the ideas in the Google Summer of Code
>     and I think it is going to be tough to win any students over from sexy
>     projects like One Laptop Per Child to something as boring as GIS.
>     Still, there must be some GIS programmer students out there somewhere
>     so here is my two cents:
> 
>     Speaking of boring, one of the most repetitive tasks in GIS has to be
>     heads-up digitizing using a background raster.  Batch automated
>     digitizing has been tried many times and found mostly to be a failure.
>     How about an interactive tool that snaps the cursor based on the
>     color and intensity of the background raster. I'm sure you can all
>     imagine algorithms that would be possible and useful to implement.
>     JUMP's snap manager would make this easy to implement for all cursor
>     tools, but the basic code should be valid for any Java based GIS.  In
>     fact, the only problem with this suggestion is that it will be tough
>     to keep from working on it ourselves.  :-)
> 
>     regards,
>     Larry Becker
> 
>     P.S. Sunburned, Kosmo seems to have DXF and DWG support.
> 
>     On 2/27/07, Sunburned Surveyor < sun...@gm...
>     <mailto:sun...@gm...>> wrote:
>      > Stefan,
>      >
>      > See my comments below.
>      >
>      > You wrote: "aehm.. we (JUMP) currently has a DXF plugin by
>     Michael Michaud?
>      > Do you
>      > now this?"
>      >  What about DWG?
>      > Why do you chosen this format (It is rather usefull for CAD
>     Geometries
>      > than for GIS )"
>      >
>      > I know about the DXF plug-in and have looked at the code. I've
>     even given it
>      > a trial run. I'd like to build on Muchael's work by adding
>     support for some
>      > other DXF features. For example, I'd like the user to have
>     control over how
>      > polylines are converted. You could have them represented by [1] line
>      > strings, [2] individual line segments, or if they are closed
>     polylines [3]
>      > as polygons. There are other things I would like to improve as well.
>      >
>      > You wrote: "What about DWG?"
>      >
>      > DWG is a closed, binary format. There are some "third-party"
>     libraries out
>      > there that will allow programs to read DWG files. However, these
>     libraries
>      > are not open source and are not written in Java, that I know of.
>     There are
>      > also some legal issues surrounding there use, and Autodesk is a
>     big Gorilla.
>      > I'd rather not get OpenJUMP involved in that mess. DXF is
>     intended as a
>      > transfer format of Autodesk CAD data to other programs, and I
>     think good DXF
>      > support in OpenJUMP would be sufficient.
>      >
>      > You wrote: "Why do you chosen this format (It is rather usefull
>     for CAD
>      > Geometries
>      > than for GIS )"
>      >
>      > You must remember I deal mostly with GIS data creation, not
>     manipulation and
>      > analysis. Good support for import and export of CAD data will be
>     a critical
>      > requirement for OpenJUMP, if I am to implement it as the main GIS
>     program at
>      > my "day job". I imagine the same would apply to most
>     engineering/surveying
>      > outfits. I realize this may not be a need of most OpenJUMP users,
>     but it is
>      > of special importance to me. :]
>      >
>      > You wrote: "ok..In which direction? What about some
>     triangulation, graph
>      > stuff,
>      > persistent topology?"
>      >
>      > I haven't thought this completely out yet. I am interested in
>     exploring
>      > support for topology and spatial relationships using JTS. But I'd
>     also be
>      > interested in exploring some curved geometry types, or some
>     alternative
>      > spatial indexes.
>      >
>      > You wrote: "mhm.. thats a critical point. At least at our
>     university we do
>      > not have
>      > that much students interested. Because they are geographers with not
>      > that much knowledge in programming - if even. We are lucky about
>     every
>      > student willing to write his masters in our division :o) So one
>     might
>      > rather attract people from IT backgound? But if it is paid?? how
>     knows.."
>      >
>      > I'll consider this carefully. However, it sounds like the guys at
>     the OSGeo
>      > think there will be no shortage of students, and the Summer of
>     Code does pay
>      > a stipend of $5000.00.
>      >
>      > SS
>      >
>      >
>      > On 2/27/07, James Macgill <jma...@gm...
>     <mailto:jma...@gm...>> wrote:
>      > > On 2/27/07, Jody Garnett < jga...@re...
>     <mailto:jga...@re...>> wrote:
>      > > > Good timing - we were talking about this very topic in todays
>     GeoTools
>      > > > meeting. And arriving at a similar spot - that OSGeo would be
>     the best
>      > > > organization for the task.
>      > > >
>      > > > What we initial need however is someone on the "admin" side
>     to get the
>      > > > OSGeo effort underway; perhaps provide a template for "ideas"
>     and help
>      > > > play match maker when the students come to call.
>      > > >
>      > > > Is this person you?
>      > >
>      > > The potential for my own brain to melt as I work out conflicts of
>      > > interest probably prevent me from being such a person but I do
>     want to
>      > > help out in any way that I can.
>      > >
>      > > James
>      > >
>      > > >
>      > > > Jody
>      > > > PS. Ideas for any of these email lists are not a problem;
>     from last
>      > > > years experience I would recommend spending effort on making
>     sure the
>      > > > ideas are communicated well.
>      > > > PS. CCing a bunch of lists does not work (everyone get's
>     bounce messages
>      > > > as they hit "reply-to-all", and you need to tag in the OSGeo
>     discussion
>      > > > list.
>      > > >
>      > > > > As part of my efforts to be more active on the "open source
>     geospatial
>      > > > > community" I have agreed to help Frank Wammerdam with the
>     Google
>      > > > > Summer of Code coordination at the OSGeo. (Thanks to Paul
>     Ramsey for
>      > > > > some encouragement in this regard.)
>      > > > >
>      > > > > I'd really like to see some GeoTools and JUMP/OpenJUMP
>     projects make
>      > > > > it in to the Summer of Code umbrella at the OSGeo. I am
>     willing to
>      > > > > prepare a Summer of Code proposal for a DXF reader/writer
>     that we can
>      > > > > contribute to GeoTools and use in JUMP/OpenJUMP and UDig. I
>     am also
>      > > > > willing to prepare a proposal to add some improvements and new
>      > > > > features to JTS. I would also mentor both projects.
>      > > > >
>      > > > > However, I don't know any students enrolled in programming
>     courses
>      > > > > that would be interested in this. I know some of my fellow
>      > > > > JUMP/OpenJUMP developers and the GeoTools developers would
>     be in a
>      > > > > better position in this regard. If I prepare one or two of the
>      > > > > proposals I mentioned will we be able to find interested
>     students to
>      > > > > participate?
>      > > > >
>      > > > > Thanks for your help with this.
>      > > > >
>      > > > > The Sunburned Surveyor
>      > > > >
>      >
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