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<p class=MsoNormal><font size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:
10.0pt;font-family:Arial;color:navy'>I have a series of vested vector polygons,
progressing from largest to smallest, they are:</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:
10.0pt;font-family:Arial;color:navy'>1) Polygon of marshland; &nbsp;&nbsp;2)
Polygon of small lake within larger marshland polygon;&nbsp;&nbsp; 3) Polygon
of very small islands within lake</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:
10.0pt;font-family:Arial;color:navy'>All three polygon boundaries are currently
attributed as 'marshland', so I need a way of assigning new
attributes to the vector boundary and area for a large number of polygons in my
mapset. Do the boundary portion and area potion of a Grass 6.0 vector require
separate attribution? And once the lake polygons and island polygons have had
their attributes changed from marshland, how can I clip out the lake polygon
from the larger marshland while maintaining the island polygons?</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:
10.0pt;font-family:Arial;color:navy'>Sorry if my questions seem muddled, I'm
relatively new to using the 6.0 vector programs. I may not be asking the right
kind of questions I need to.</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks,</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:
10.0pt;font-family:Arial;color:navy'>~ Eric. </span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<div>

<p class=MsoNormal><font size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:
10.0pt;font-family:Arial;color:navy'>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></font></p>

<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal><strong><b><font size=3 color=navy face=Arial><span
style='font-size:12.0pt;font-family:Arial;color:navy'>Eric Patton</span></font></b></strong></p>

<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal><em><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Technologist, Geo-Spatial
Data Services</span></font></i></em></p>

<p class=MsoNormal><em><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Geological Survey of </span></font></i></em><em><i><font
  size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:10.0pt;font-family:Arial;
  color:navy'>Canada</span></font></i></em><em><i><font size=2 color=navy
face=Arial><span DEFANGED_STYLE='font-size:10.0pt;font-family:Arial;color:navy'> (</span></font></i></em><em><i><font
 size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:10.0pt;font-family:Arial;
 color:navy'>Atlantic</span></font></i></em><em><i><font size=2 color=navy
face=Arial><span DEFANGED_STYLE='font-size:10.0pt;font-family:Arial;color:navy'>)</span></font></i></em></p>

<p class=MsoNormal><em><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Natural Resources </span></font></i></em><em><i><font
  size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:10.0pt;font-family:Arial;
  color:navy'>Canada</span></font></i></em></p>

<p class=MsoNormal><em><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Bedford Institute of
Oceanography</span></font></i></em></p>

<p class=MsoNormal><em><i><font size=2 color=navy face=Arial><span
  DEFANGED_STYLE='font-size:10.0pt;font-family:Arial;color:navy'>Dartmouth</span></font></i></em><em><i><font
 size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:10.0pt;font-family:Arial;
 color:navy'>, </span></font></i></em><em><i><font size=2 color=navy
  face=Arial><span DEFANGED_STYLE='font-size:10.0pt;font-family:Arial;color:navy'>Nova
  Scotia</span></font></i></em><em><i><font size=2 color=navy face=Arial><span
 DEFANGED_STYLE='font-size:10.0pt;font-family:Arial;color:navy'>, </span></font></i></em><em><i><font
  size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:10.0pt;font-family:Arial;
  color:navy'>Canada</span></font></i></em><em><i><font size=2 color=navy
 face=Arial><span DEFANGED_STYLE='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></i></em><em><i><font
  size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:10.0pt;font-family:Arial;
  color:navy'>B2Y 4A2</span></font></i></em></p>

<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal><em><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Postal address: </span></font></i></em><em><i><font
  size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:10.0pt;font-family:Arial;
  color:navy'>P.O. Box</span></font></i></em><em><i><font size=2 color=navy
 face=Arial><span DEFANGED_STYLE='font-size:10.0pt;font-family:Arial;color:navy'> 1006</span></font></i></em></p>

<p class=MsoNormal><em><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Courier address: </span></font></i></em><em><i><font
  size=2 color=navy face=Arial><span DEFANGED_STYLE='font-size:10.0pt;font-family:Arial;
  color:navy'>1 Challenger Drive</span></font></i></em></p>

<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal><em><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Telephone: (902)426-7732</span></font></i></em></p>

<p class=MsoNormal><em><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Facsimile:&nbsp;&nbsp;(902)426-4104</span></font></i></em></p>

<p class=MsoNormal><em><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>E-mail:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></font></i></em><font color=navy><span DEFANGED_STYLE='color:navy'><a
href="mailto:epatton@NRCan.gc.ca"><em><i><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial;text-decoration:none'>epatton@NRCan.gc.ca</span></font></i></em></a></span></font></p>

<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>&nbsp;</span></font></p>

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