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<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=301361513-14072011>Jody,</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=301361513-14072011></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=301361513-14072011>> <FONT color=#000000 size=3
face="Times New Roman">Frankly with out Martin being stubborn and the hard math
we would not have an open source spatial industry.</FONT></SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#000000 size=3 face="Times New Roman"><SPAN
class=301361513-14072011></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=301361513-14072011>That is worth emphasizing !</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=301361513-14072011></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=301361513-14072011>Peter</SPAN></FONT></DIV><BR>
<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left>
<HR tabIndex=-1>
<FONT size=2 face=Tahoma><B>From:</B> discuss-bounces@lists.osgeo.org
[mailto:discuss-bounces@lists.osgeo.org] <B>On Behalf Of </B>Jody
Garnett<BR><B>Sent:</B> July 14, 2011 07:26<BR><B>To:</B> OSGeo
Discussions<BR><B>Cc:</B> discuss@lists.osgeo.org<BR><B>Subject:</B> Re:
[OSGeo-Discuss] Geomajas Geometry Project
[SEC=UNCLASSIFIED]<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV>It follows the SFSQL spec.</DIV>
<DIV><BR></DIV>
<DIV>The only problem in this space is money. Frankly with out Martin being
stubborn and the hard math we would not have an open source spatial
industry. </DIV>
<DIV><BR></DIV>
<DIV>We see many ports of jts but what is needed is commitment. </DIV>
<DIV><BR>
<DIV><BR></DIV></DIV>
<DIV><BR>On 14/07/2011, at 5:22 PM, Pieter De Graef <<A
href="mailto:pieter.degraef@geosparc.com">pieter.degraef@geosparc.com</A>>
wrote:<BR><BR></DIV>
<DIV></DIV>
<BLOCKQUOTE type="cite">
<DIV>Thanks for your insights guys.<BR><BR>I have also noticed that a lot of
Java based projects use the JTS library for geometries, while this library
does not really follow any specs (afaik). Do you guys feel that this is
becoming a problem? I'm asking this because there is also a JTS4GWT project
out there.<BR><BR>On 07/14/2011 01:42 AM, Bruce Bannerman wrote:
<BLOCKQUOTE cite=mid:CA446A6C.A93D%25B.Bannerman@bom.gov.au
type="cite"><FONT face="Calibri, Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 11pt">Pieter,<BR><BR>I agree with Jody.<BR><BR>I’m seeing
increasing demand for clients that can utilise vector data constrained by an
application schema.<BR><BR>Europe is probably most advanced in this work
with Inspire.<BR><BR>In Australia we have a lot of work currently at
research and at implementation stage trying to work with Simple Features 1
(aka Complex Features).<BR><BR>Some examples are WaterML 2.0 and GeoSciML.
We will also be looking seriously at CSML 3.0.<BR><BR>Bruce Bannerman
<BR><BR><BR>On 13/07/11 10:52 PM, "Jody Garnett" <<A
href="jody.garnett@gmail.com" moz-do-not-send="true"><A
href="mailto:jody.garnett@gmail.com">jody.garnett@gmail.com</A></A>>
wrote:<BR><BR></SPAN></FONT>
<BLOCKQUOTE><FONT face="Calibri, Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 11pt"><BR> It is the ISO 19107 specification; the
same one that lurks behind GML Ready to leap out from under a surface and
foist trans finite set on an unsuspecting world. It is worth while
getting the ISO 19107 document (ie pay for it) as it is much easier to
read and follow then learning this information second hand.<BR><BR>We had
a brief code sprint with deegree (compatible LGPL license) in order to see
if multiple project would be interested in attacking the problem. GeoAPI
was the first attempt (which has now been released last month), we have a
couple of implementations in GeoTools (mostly ports or wrappers of JTS).
deegree has an implementation that is closer to the GML constructs
etc....<BR><BR>If you are interested in pursuing this I recommend talking
to Tisham who has been more active research. I am afraid I am interested
in using a Geometry library and enthusiasm goes as far as setting one up
with a good design so that it can be completed successfully.<BR><BR>--
<BR>Jody Garnett<BR><BR> <BR><BR><FONT color=#a0a0a0>On
Wednesday, 13 July 2011 at 9:54 PM, Pieter De Graef
wrote:<BR></FONT></SPAN></FONT>
<BLOCKQUOTE><FONT face="Calibri, Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 11pt"><BR> <BR>Hi Jody,<BR><BR>that's the GeoApi
specification no?<BR><BR>At first we would be using it on the GWT client
we where hoping to also include curves, as those can be directly drawn
in SVG/VML. At a later stage we could switch the backend to make use of
it as well.<BR><BR>Jody, you have been looking into creating you own
Geometry library for some time now I understand. How would you approach
this? I was hoping to start with something simple, that can grow at it's
own pace. Important for me is that I can use the same objects on both
client and server (meaning Java with some GWT restrictions).<BR><BR>I am
also afraid to be re-inventing the wheel, but using 2 different
libraries on client and server would be a shame when using
GWT...<BR><BR><BR>2011/7/13 Jody Garnett <<FONT color=#0000ff><U><A
href="jody.garnett@gmail.com" moz-do-not-send="true"><A
href="mailto:jody.garnett@gmail.com">jody.garnett@gmail.com</A></A></U></FONT>><BR></SPAN></FONT>
<BLOCKQUOTE><FONT face="Calibri, Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 11pt"><BR> There is a third model; the ISO19107
model that deals with a few more things; it is however object oriented
in nature....<BR> <BR>-- <BR><FONT color=#888888>Jody
Garnett<BR><BR></FONT> <BR><BR><FONT color=#a0a0a0>On Wednesday,
13 July 2011 at 6:36 PM, Pieter De Graef
wrote:<BR></FONT></SPAN></FONT>
<BLOCKQUOTE><FONT face="Calibri, Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 11pt"><BR> <BR></SPAN></FONT><FONT
size=2><FONT face=Arial><SPAN style="FONT-SIZE: 10pt">Hi
everyone,<BR><BR>for the Geomajas project, we are looking into
separating the Geometry functionality into an independent project.
In other words, I am talking about a Geometry project for the Web.
This code would be written in Java for GWT and thus be available on
Java backends as well as client environments (we intend to add a
JavaScript wrapper around the GWT code).<BR><BR>Now the problem that
I'm facing here, is which model to follow....<BR><BR>On one hand
there is the Simple Feature Specification which is clearly an Object
Oriented model with the advantage that it is well known but is also
more difficult to implement the JavaScript wrapper around.<BR><BR>On
the other hand we could follow a service based model (more like SFS
for SQL) which is easier to get up and running, easier to create a
JavaScript wrapper for and easier to translate into web
services.<BR><BR>As it's difficult for us to chose and as it's a
pretty crucial decision for the future of the Geomajas project, I as
wondering how you guys feel about this.<BR><BR>Kind
regards,<BR><BR>Pieter De Graef<BR></SPAN></FONT></FONT><FONT
face="Calibri, Verdana,
Helvetica, Arial"><SPAN
style="FONT-SIZE: 11pt">_______________________________________________<BR>Discuss
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</PRE></BLOCKQUOTE><BR><PRE class=moz-signature cols="72">--
Pieter De Graef
Community Manager
GeoSparc nv.
<A class=moz-txt-link-freetext href="http://www.geosparc.com/"><A href="http://www.geosparc.com/">http://www.geosparc.com/</A></A>
Chairman of the Geomajas project
<A class=moz-txt-link-freetext href="http://www.geomajas.org/"><A href="http://www.geomajas.org/">http://www.geomajas.org/</A></A>
</PRE></DIV></BLOCKQUOTE>
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