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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thank you very much for your reply. I misunderstood the –a option.
It works beautifully and our SHP as well as KML files now have each contour clearly
labelled with its value.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Here’s an example of a command that does the trick.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>gdal_contour -a Thickness[cm] -fl 1.000000 2.000000 5.000000
50.000000 100.000000 <tiffile> <shpfile><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>We then convert to kml using ogr2ogr<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks again<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Ole<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial Narrow","sans-serif";
color:#1F497D'>Dr Ole Nielsen<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial Narrow","sans-serif";
color:#1F497D'>Numerical Modeller<o:p></o:p></span></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Arial Narrow","sans-serif";color:#1F497D'>Australia-Indonesia
Facility for Disaster Reduction<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial Narrow","sans-serif";
color:#1F497D'>Mobile: +62 811 820 4637 | Phone: +62 21 398 30088 x1007 | Fax:
+62 21 398 30068<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial Narrow","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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color:#1F497D'><img width=624 height=131 id="Picture_x0020_1"
src="cid:image001.jpg@01CB1DEA.70229B20"
alt="cid:341378CF-F190-43E3-BF4F-9D25093D10FA@e2.local"></span><span
lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> Chaitanya kumar CH
[mailto:chaitanya.ch@gmail.com] <br>
<b>Sent:</b> Wednesday, 7 July 2010 3:27 PM<br>
<b>To:</b> Ole Nielsen<br>
<b>Cc:</b> gdal-dev@lists.osgeo.org; Adele.Bear@ga.gov.au; Kristy Van Putten<br>
<b>Subject:</b> Re: [gdal-dev] Which contour is which?<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>Ole,<br>
<br>
You can specify a field in the contour features using the '-a' option. You can
also use the '-3d' option to include the elevation value in the z value at
every vertex. (<a href="http://www.gdal.org/gdal_contour.html">http://www.gdal.org/gdal_contour.html</a>)<o:p></o:p></p>
<div>
<p class=MsoNormal>On Wed, Jul 7, 2010 at 1:26 PM, Ole Nielsen <<a
href="mailto:ole.nielsen@aifdr.org">ole.nielsen@aifdr.org</a>> wrote:<o:p></o:p></p>
<div>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Dear
all <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>We
are using gdal_contour to generate shape files. They look good and appear to be
correct, but we need to label them with the value they represent.<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>However,
no such information appears to be available in the shape files. We thought we
could work with the ID attribute which is the only information available in the
shapefiles generated by gdal_contour, but that does not generally reflect the
order of the contour lines either.<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>How
is it possible to determine which contour line corresponds to a particular
level?<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Best
regards<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Ole<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US style='font-size:10.0pt'>Dr Ole Nielsen</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US style='font-size:10.0pt'>Numerical Modeller</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><span
lang=EN-US style='font-size:10.0pt'>Australia-Indonesia Facility for Disaster
Reduction</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US style='font-size:10.0pt'>Mobile: +62 811 820 4637 | Phone: +62 21
398 30088 x1007 | Fax: +62 21 398 30068</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US style='font-size:10.0pt'> </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><img
border=0 width=624 height=131 id="_x0000_i1025"
src="cid:image001.jpg@01CB1DEA.70229B20"
alt="cid:341378CF-F190-43E3-BF4F-9D25093D10FA@e2.local"><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
</div>
</div>
<p class=MsoNormal><br>
_______________________________________________<br>
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<p class=MsoNormal><br>
<br clear=all>
<br>
-- <br>
Best regards,<br>
Chaitanya kumar CH.<br>
/t<span style='font-family:"MS Mincho"'>ʃ</span>a<span style='font-family:"MS Mincho"'>ɪ</span>θənjə/
/k<span style='font-family:"MS Mincho"'>ʊ</span>m<span style='font-family:"MS Mincho"'>ɑ</span>r/
<br>
+91-9494447584<br>
17.2416N 80.1426E<o:p></o:p></p>
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