<html>
<head>
<DEFANGED_META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<DEFANGED_meta name=Generator content="Microsoft Word 10 (filtered)">
<!-- <DEFANGED_STYLE>
<!--
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
        {margin:0in;
        margin-bottom:.0001pt;
        font-size:12.0pt;
        font-family:"Times New Roman";}
a:link, span.MsoHyperlink
        {color:blue;
        text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
        {color:purple;
        text-decoration:underline;}
p.MsoAutoSig, li.MsoAutoSig, div.MsoAutoSig
        {margin:0in;
        margin-bottom:.0001pt;
        font-size:12.0pt;
        font-family:"Times New Roman";}
span.EmailStyle17
        {font-family:Arial;
        color:navy;
        font-weight:normal;
        font-style:normal;
        text-decoration:none none;}
@page Section1
        {size:8.5in 11.0in;
        margin:1.0in 1.25in 1.0in 1.25in;}
div.Section1
        {page:Section1;}
-->
--> </DEFANGED_STYLE>
</head>
<body lang=EN-US link=blue vlink=purple>
<div class=Section1>
<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'> </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; 2)
Polygon of small lake within larger marshland polygon; 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'> </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'> </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'> </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'> </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'> </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'> </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'> </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'> </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'> </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'> </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: (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:
</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'> </span></font></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span DEFANGED_STYLE='font-size:
12.0pt'> </span></font></p>
</div>
</body>
</html>