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<div class=Section1>
<p class=MsoNormal><font size=3 color=blue face=Arial><span style='font-size:
12.0pt;font-family:Arial;color:blue'>The notes section of the r.surf.contour man
page says:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=blue face=Arial><span style='font-size:
12.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><em><i><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>…</span></font></i></em>The speed of <em><i><font
face="Times New Roman">r.surf.contour</font></i></em> is dependent on how far
"apart" the contour lines are from each other (as measured in raster
cells). Since a flood fill algorithm is used, the program's running time will
grow exponentially with the distance between contour lines. <o:p></o:p></p>
<p class=MsoNormal><font size=3 color=blue face=Arial><span style='font-size:
12.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=blue face=Arial><span style='font-size:
12.0pt;font-family:Arial;color:blue'>Thus, the run time is more dependent on
the locations of contour lines than the raw number of grid cells.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=blue face=Arial><span style='font-size:
12.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=blue face=Arial><span style='font-size:
12.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=1 color=blue face="Courier New"><span
style='font-size:8.0pt;font-family:"Courier New";color:blue'>Chuck
Ehlschlaeger, <st1:place w:st="on"><st1:PlaceName w:st="on">Associate Professor
& GIS</st1:PlaceName> <st1:PlaceType w:st="on">Center</st1:PlaceType></st1:place>
Director<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=blue face="Courier New"><span
style='font-size:8.0pt;font-family:"Courier New";color:blue'>Department of
Geography, <st1:place w:st="on"><st1:PlaceName w:st="on">Western</st1:PlaceName>
<st1:PlaceName w:st="on">Illinois</st1:PlaceName> <st1:PlaceType w:st="on">University</st1:PlaceType></st1:place><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=blue face="Courier New"><span
style='font-size:8.0pt;font-family:"Courier New";color:blue'>215 Tillman
Hall, <st1:address w:st="on"><st1:Street w:st="on">1 University Circle</st1:Street>,
<st1:City w:st="on">Macomb</st1:City>, <st1:State w:st="on">IL</st1:State> <st1:PostalCode
w:st="on">61455</st1:PostalCode></st1:address><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:PersonName w:st="on"><font size=1 color=blue
face="Courier New"><span style='font-size:8.0pt;font-family:"Courier New";
color:blue'>cre111@wiu.edu</span></font></st1:PersonName><font size=1
color=blue face="Courier New"><span style='font-size:8.0pt;font-family:"Courier New";
color:blue'>, phone: 309-298-1841, fax: 309-298-3003<o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=3 color=blue face=Arial><span style='font-size:
12.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<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'>
grassuser-bounces@grass.itc.it [mailto:grassuser-bounces@grass.itc.it] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Amaginary Studios<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, March 20, 2007 6:10
PM<br>
<b><span style='font-weight:bold'>To:</span></b> grassuser@grass.itc.it<br>
<b><span style='font-weight:bold'>Subject:</span></b> [GRASS-user]
r.surf.contour</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><span class=apple-style-span><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>I am running <font
color="#1d6dff"><span style='color:#1D6DFF'>r.surf.contour</span></font><font
color=black><span style='color:black'> and it is ... taking quite a long
time...</span></font></span></font></span><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>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>I am just wondering how
long the average processing time is with the following <font color="#1d6dff"><span
style='color:#1D6DFF'>g.region</span></font></span></font></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><i><font size=3 color="#016204" face="Times New Roman"><span
style='font-size:12.0pt;color:#016204;font-style:italic'>projection: 1 (UTM)</span></font></i><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><i><font size=3 color="#016204" face="Times New Roman"><span
style='font-size:12.0pt;color:#016204;font-style:italic'>zone:
9</span></font></i><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><i><font size=3 color="#016204" face="Times New Roman"><span
style='font-size:12.0pt;color:#016204;font-style:italic'>datum:
nad83</span></font></i><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><i><font size=3 color="#016204" face="Times New Roman"><span
style='font-size:12.0pt;color:#016204;font-style:italic'>ellipsoid: grs80</span></font></i><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><i><font size=3 color="#016204" face="Times New Roman"><span
style='font-size:12.0pt;color:#016204;font-style:italic'>north:
6052143.70894</span></font></i><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><i><font size=3 color="#016204" face="Times New Roman"><span
style='font-size:12.0pt;color:#016204;font-style:italic'>south:
6018782.69306</span></font></i><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><i><font size=3 color="#016204" face="Times New Roman"><span
style='font-size:12.0pt;color:#016204;font-style:italic'>west:
644196.986023</span></font></i><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><i><font size=3 color="#016204" face="Times New Roman"><span
style='font-size:12.0pt;color:#016204;font-style:italic'>east:
657085.826063</span></font></i><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><i><font size=3 color="#016204" face="Times New Roman"><span
style='font-size:12.0pt;color:#016204;font-style:italic'>nsres:
4.00012181</span></font></i><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><i><font size=3 color="#016204" face="Times New Roman"><span
style='font-size:12.0pt;color:#016204;font-style:italic'>ewres:
4.00026072</span></font></i><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><i><font size=3 color="#016204" face="Times New Roman"><span
style='font-size:12.0pt;color:#016204;font-style:italic'>rows:
8340</span></font></i><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><i><font size=3 color="#016204" face="Times New Roman"><span
style='font-size:12.0pt;color:#016204;font-style:italic'>cols:
3222</span></font></i><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><i><font size=3 color="#016204" face="Times New Roman"><span
style='font-size:12.0pt;color:#016204;font-style:italic'>cells:
26 871 480</span></font></i><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>Perhaps the
resolution is too high? </span></font></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>so far it has
been running for 6hours.</span></font></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>Mac OSX.4.9
MacBook Pro 2.16 core duo, 2Gram</span></font></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>Thank you!</span></font></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>Mars</span></font></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></span></p>
<div><span style='border-spacing: 0px 0px;text-align:auto;-khtml-text-decorations-in-effect: none;
-apple-text-size-adjust: auto;orphans: 2;widows: 2;word-spacing:0px'><span
style='border-spacing: 0px 0px;text-align:auto;-khtml-text-decorations-in-effect: none;
-apple-text-size-adjust: auto;orphans: 2;widows: 2;word-spacing:0px'>
<div>
<p class=MsoNormal><font size=1 color=black face=Helvetica><span
style='font-size:9.0pt;font-family:Helvetica;color:black'><span
style='border-spacing: 0px 0px;text-align:auto;-khtml-text-decorations-in-effect: none;
-apple-text-size-adjust: auto;orphans: 2;widows: 2;word-spacing:0px'><a
href="http://amaginarystudios.spymac.com"><span class=apple-style-span><span
style='-khtml-text-decorations-in-effect: underline'><font color="#0000ee"><span
style='color:#0000EE'><span style='-khtml-text-decorations-in-effect: underline'><span
style='-khtml-text-decorations-in-effect: underline'>Amaginary Studios</span></span></span></font></span></span></a><o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=1 color=black
face=Helvetica><span style='font-size:9.0pt;font-family:Helvetica;color:black'><a
href="mailto:amagine@telus.net">amagine@telus.net</a></span></font></span><font
size=1 color=black face=Helvetica><span style='font-size:9.0pt;font-family:
Helvetica;color:black'><o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=1 color=black
face=Helvetica><span style='font-size:9.0pt;font-family:Helvetica;color:black'>Phone
250 845 7999</span></font></span><font size=1 color=black face=Helvetica><span
style='font-size:9.0pt;font-family:Helvetica;color:black'><o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=1 color=black face=Helvetica><span
style='font-size:9.0pt;font-family:Helvetica;color:black'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=1 color=black
face=Helvetica><span style='font-size:9.0pt;font-family:Helvetica;color:black'>Mars
Sjoden</span></font></span><font size=1 color=black face=Helvetica><span
style='font-size:9.0pt;font-family:Helvetica;color:black'><o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><span
class=apple-style-span><font size=1 color=black face=Helvetica><span
style='font-size:9.0pt;font-family:Helvetica;color:black'>3320 Mount Davis
Way</span></font></span></st1:address></st1:Street><font size=1 color=black
face=Helvetica><span style='font-size:9.0pt;font-family:Helvetica;color:black'><o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><span
class=apple-style-span><font size=1 color=black face=Helvetica><span
style='font-size:9.0pt;font-family:Helvetica;color:black'>Houston</span></font></span></st1:City><span
class=apple-style-span><font size=1 color=black face=Helvetica><span
style='font-size:9.0pt;font-family:Helvetica;color:black'> <st1:State w:st="on">BC</st1:State></span></font></span></st1:place><font
size=1 color=black face=Helvetica><span style='font-size:9.0pt;font-family:
Helvetica;color:black'><o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=1 color=black
face=Helvetica><span style='font-size:9.0pt;font-family:Helvetica;color:black'>V0J
1Z2</span></font></span><font size=1 color=black face=Helvetica><span
style='font-size:9.0pt;font-family:Helvetica;color:black'><o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=1 color=black face=Helvetica><span
style='font-size:9.0pt;font-family:Helvetica;color:black'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=1 color=black
face=Helvetica><span style='font-size:9.0pt;font-family:Helvetica;color:black'>READ
CAREFULLY. </span></font></span><font size=1 color=black face=Helvetica><span
style='font-size:9.0pt;font-family:Helvetica;color:black'><o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=1 color=black
face="Times New Roman"><span style='font-size:7.0pt;color:black'>By reading
this email, you agree, on behalf of your employer, to release me from all
obligations and waivers arising from any and all NON-NEGOTIATED agreements, licenses,
terms-of-service, shrinkwrap, clickwrap, browsewrap, confidentiality,
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AGREEMENTS") that I have entered into with your employer, its partners,
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<p class=MsoNormal><font size=1 color=black face=Helvetica><span
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<p class=MsoNormal><font size=1 color=black face=Helvetica><span
style='font-size:9.0pt;font-family:Helvetica;color:black'><br>
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<P><FONT SIZE=2>--<BR>
No virus found in this incoming message.<BR>
Checked by AVG Free Edition.<BR>
Version: 7.5.446 / Virus Database: 268.18.15/728 - Release Date: 3/20/2007 8:07 AM<BR>
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<P><FONT SIZE=2 FACE="Arial"> </FONT> </P><BR>
<P><FONT SIZE=2>--<BR>
No virus found in this outgoing message.<BR>
Checked by AVG Free Edition.<BR>
Version: 7.5.446 / Virus Database: 268.18.15/728 - Release Date: 3/20/2007 8:07 AM<BR>
</FONT> </P>