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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Landon,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I missed your previous post. I’m not sure if you are modeling
GIS Objects or a relational database but am guessing you are modeling GIS
objects. Since I missed the earlier post(s)… Is there a reason why traditional
OO diagrams such as UML Class diagrams won’t work for the GIS data you are modeling?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Craig<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
discuss-bounces@lists.osgeo.org [mailto:discuss-bounces@lists.osgeo.org] <b>On
Behalf Of </b>Landon Blake<br>
<b>Sent:</b> Wednesday, September 09, 2009 12:48 PM<br>
<b>To:</b> OSGeo Discussions<br>
<b>Subject:</b> [OSGeo-Discuss] Documenting GIS Data Models (Again): Using DXF<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I
posted a few weeks back I posted about possible ways to document and share GIS
data models. I decided to move forward with a graphical approach. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I
started building diagrams to document my GIS data model for the Public Land
Survey System in the United States. I am drawing these diagrams in a CAD
program. When I get things ironed out I hope to release the following items to
the GIS community:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'><span
style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>My
completed GIS data model in DXF format that can be used as an example or
template for other models.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'><span
style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>A
set of CAD “blocks” that can be used to build similar diagrams.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>If
I like how things come together with the diagrams, I might try converting the
diagrams to SVG. The diagrams would be much prettier in SVG, but I am quicker
with CAD than I am with Inkscape, and I want to get a prototype completed
quickly.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>This
will make a lot more sense when you get to see the example diagrams.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I
welcome any collaboration on this effort. If there is interest, I could move
this discussion to the Standards mailing list. It would be great to get input
from interested parties now, while the diagrams are still taking shape.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Landon<o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p>
<p><strong><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'>Warning:</span></strong><b><span
style='font-size:7.5pt;font-family:"Arial","sans-serif"'><br>
</span></b><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'>Information
provided via electronic media is not guaranteed against defects including
translation and transmission errors. If the reader is not the intended
recipient, you are hereby notified that any dissemination, distribution or
copying of this communication is strictly prohibited. If you have received this
information in error, please notify the sender immediately.</span><o:p></o:p></p>
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