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<div class="moz-cite-prefix">I have a couple of suggestions - I
didn't use QGIS 1.7 a lot - my best reference currently is 2.0. <br>
<br>
1. You can add the csv to qgis and use the contour plugin from the
repositories - I'm not sure exactly how it works but you'll need a
few extra python libraries like numpy and matplotlib (and I think
that is a python library - but it will tell you upon
installation). <br>
<br>
2. Convert the csv to a shapefile and use the rasterize (vector to
raster tool) under Raster > Conversion. That would build a
elevation model (or surface) and from there you can generate
contours. (To generate a shapefile add the csv using the delimited
text tool and then right click the layer and "save as").<br>
<br>
3. Be a manly man and use gdal and vrt files. I have never done
this - but it looks like fun and a good learning exercise. If I
had a CSV file I would attempt it - but the only thing I currently
have is several points in a straight line (your example). <br>
<br>
I hope that points you to a closer direction for getting the
contours. Good Luck - we're all counting on you. <br>
<br>
Randy<br>
<pre class="moz-signature" cols="72">-----------------
Randal Hale, GISP
North River Geographic Systems, Inc
<a class="moz-txt-link-freetext" href="http://www.northrivergeographic.com">http://www.northrivergeographic.com</a>
423.653.3611 <a class="moz-txt-link-abbreviated" href="mailto:rjhale@northrivergeographic.com">rjhale@northrivergeographic.com</a>
<a class="moz-txt-link-rfc2396E" href="mailto:rjhale@northrivergeographic.com"><mailto:rjhale@northrivergeographic.com></a>
twitter:rjhale
<a class="moz-txt-link-freetext" href="http://about.me/rjhale">http://about.me/rjhale</a></pre>
On 11/30/2013 11:02 PM, Eyal Saiet wrote:<br>
</div>
<blockquote
cite="mid:CA+ysReBjPfBb_iaCTCs0m3_nzaYs-j2dWiMVm05L8sk8tASjSg@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>
<div>Hello,<br>
</div>
I was able to create contour lines from a CSV file using QGIS
1.7, bust since I moved to 2.0 I am failing to acquire the
skills I had with the earlier version. <br>
</div>
The topo data is a CSV, here is a sample:<br clear="all">
<div>
<div>
<div>
<div>
<div style="margin-left:40px">Depth_cm,UTM_East,UTM_North<br>
55.27,405472.81,7613300.3<br>
60.38,405474.03,7613300.3<br>
63.63,405476.06,7613300.2<br>
62.8,405478.1,7613300.1<br>
58.47,405479.72,7613300<br>
63.99,405480.94,7613300<br>
65.28,405483.38,7613299.9<br>
66.06,405485.01,7613299.8<br>
64.82,405486.23,7613299.8<br>
57.9,405488.67,7613299.7<br>
<br>
</div>
I am now trying to follow the documentation to create a
contour line in <a moz-do-not-send="true"
href="http://www.qgis.org/en/docs/user_manual/grass_integration/grass_integration.html?highlight=contour">link</a>.
<br>
<div style="margin-left:40px">At "In the list of tool
categories double click <em class="">Raster ‣ Surface
Management ‣ Generate vector contour lines"...<br>
</em></div>
<div style="margin-left:40px"><em class="">I found
"RASTER" at the top of the screen to the right of
"Vector" and left to "Database" But there is no"</em><em
class=""><em class="">Surface
Management" and therefore I am at a dead-end
trying to follow the above instructions.<br>
<br>
</em></em></div>
<em>Anotehr option after uploading the csv file was to
go to </em>Raster-->Extraction-->Contour. This
failed as well. By going through the path to the left I
am prompt for a file input and it does not take loaded
csv layer.<br>
</div>
<div><em class=""><em class=""></em> </em></div>
<div><br>
</div>
<div>Really need your help<br>
-- <br>
</div>
<div>
<div dir="ltr"><font color="#888888">
<div>Eyal Saiet<span
style="border-spacing:0px;text-indent:0px;letter-spacing:normal;font-variant:normal;font-style:normal;font-weight:normal;line-height:normal;border-collapse:separate;text-transform:none;font-size:medium;white-space:normal;font-family:Helvetica;word-spacing:0px"><span
style="border-spacing:0px;text-indent:0px;letter-spacing:normal;font-variant:normal;font-style:normal;font-weight:normal;line-height:normal;border-collapse:separate;text-transform:none;font-size:12px;white-space:normal;font-family:Helvetica;word-spacing:0px">
<div>
University of Alaska Fairbanks</div>
<div>Fairbanks, AK 99775</div>
<div><a moz-do-not-send="true"
value="+19073224084">(907) 750 6555</a>
(cell)</div>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="mailto:Gregory.Walker@gi.alaska.edu"
target="_blank"><span>ejsaiet@alaska.edu</span></a></div>
</span></span></div>
</font></div>
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<br>
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<br>
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