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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi Steve, I’m in the same boat with getting
many project files that are surveyed or drawn on assumed coordinates. First
off, make sure that you ask your CAD folks to include references like street
intersections, section corners and/or monuments in the .dwg you end up with. Then
bring in the drawing file to ArcMap so you can link two points from the .dwg to
your known ortho. I have used the georeferencing tools successfully (give
or take issues with the rescale tool) quite often. This can be a less painful
process if you bookmark the location of your .dwg and your ortho before you
begin the georef. That way you don’t have to wait for the redraws
from zooming in and out. If you export to shapefile too early, some of
your functionality can be limited. Turn off all unnecessary layers in the
.dwg and then re-symbolize the layers so that they are more useful to you. This
helped me a great deal in the beginning when I wasn’t familiar with
working with CAD in GIS. When you export to shapefile, only the layers
that are turned on will export. Once you create your links, then save your
worldfile and update the georef. The file should pop right in. Fine
adjustments can be done with the scale and shift tools. Hope this helps. Tripp
Corbin has developed a class on working with CAD in GIS; you might want to
contact him about training materials. I’m sure you will also hear
from him on this post. Good luck! Kristal<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span lang=SV
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Kristal
Walsh, GIS Specialist<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span lang=SV
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Baskerville-Donovan,
Inc.<o:p></o:p></span></font></i></p>
<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><i><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy;font-style:italic'>449 Main St</span></font></i></st1:address></st1:Street><i><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy;font-style:italic'>.<o:p></o:p></span></font></i></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><i><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy;font-style:italic'>Pensacola</span></font></i></st1:City><i><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy;font-style:italic'>, <st1:State w:st="on">FL</st1:State> <st1:PostalCode
w:st="on">32502</st1:PostalCode></span></font></i></st1:place><i><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy;font-style:italic'><o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>850-438-9662,
ext. 4354<o:p></o:p></span></font></i></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
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face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Steve Carbone
[mailto:SCarbone@birkitt.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, October 29, 2007
2:13 PM<br>
<b><span style='font-weight:bold'>To:</span></b> SHRUG List<br>
<b><span style='font-weight:bold'>Subject:</span></b> shrug-l: CAD to GIS
projection issues</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Fellow SHRUGGIES,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I have a simple request of all of you … I need an easy
way to project CAD drawings in GIS to GIS coordinate systems.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Here is my dilemma:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>I deal with multiple projects where
CAD drawings are sent to me to overlay onto DOQQs in ArcView. Now some of
the CAD drawings that I get will actually overlay onto my DOQQ, however, they
are a rarity. Most of the drawings show up in <st1:City w:st="on">Timbuktu</st1:City>
and my DOQQ shows up in <st1:place w:st="on"><st1:State w:st="on">Florida</st1:State></st1:place>.
Now, when I extract out what I want from the CAD drawing into shapefile format,
I cannot re-project the shapefile to the coordinate system of my
choosing. I have tried to re-project the extracted shapefile by removing
the PRJ file, and then defining a new projection for the shapefile. That
has never met with success. I have resorted to attempting to edit the
shapefile and just move it on top of my DOQQ, which sometimes meets with
success, however, other times not. The CAD designers that create these
drawings have no idea what I am talking about when I ask them to re-project
their drawing from CAD (which I have no idea if that is possible since I have
never seen CAD in my life !!!)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Help !!!!!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I need an easy way to re-project the CAD extracted
shapefiles that can be replicated many times over.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p><b><i><font size=2 color="#ffb30f" face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:#FFB30F;font-weight:bold;font-style:italic'>people and
nature</span></font></i></b><br>
<b><font size=2 color="#0d0659" face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:#0D0659;font-weight:bold'>BIRKITT ENVIRONMENTAL
SERVICES, INC.</span></font></b><br>
<font color=navy><span style='color:navy'> </span></font> <br>
<font color=navy><span style='color:navy'>Steve Carbone</span></font><br>
<font color=navy><span style='color:navy'>GIS\IT Specialist</span></font><br>
<font color=navy><span style='color:navy'> </span></font><o:p></o:p></p>
<p><strong><b><font size=2 color=black face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:black'>PLEASE NOTE OUR CHANGE OF ADDRESS</span></font></b></strong><br>
<st1:Street w:st="on"><st1:address w:st="on"><font color=navy><span
style='color:navy'>550 N. Reo Street, Suite 105</span></font></st1:address></st1:Street><br>
<st1:place w:st="on"><st1:City w:st="on"><font color=navy><span
style='color:navy'>Tampa</span></font></st1:City><font color=navy><span
style='color:navy'>, <st1:State w:st="on">FL</st1:State> <st1:PostalCode
w:st="on">33609</st1:PostalCode></span></font></st1:place><br>
<font color=navy><span style='color:navy'>(813) 259-1085 (phone)</span></font><br>
<font color=navy><span style='color:navy'>(813) 259-1086 (fax)</span></font><br>
<font color=navy><span style='color:navy'>scarbone@birkitt.com</span></font><o:p></o:p></p>
<p><b><u><font size=3 color="#0d0659" face=Arial><span style='font-size:12.0pt;
font-family:Arial;color:#0D0659;font-weight:bold'>www.birkitt.com</span></font></u></b><br>
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