[Qgis-user] Display of Contour Map

[Federico Nadela]

The link is a valuable source material for new users like me! I tried the "How to generate contours using raster data in Quantum GIS" and it worked very well. A breakthrough for me. It worked for 'Interval between contour lines' : 10.00 but not for smaller values like 2.00. Why is that? The error message was about Realloc0 not sufficient.
Federico M. Nadela
 

________________________________
 From: Zoltan Szecsei <zoltans at geograph.co.za>
To: qgis-user at lists.osgeo.org 
Sent: Sunday, September 2, 2012 6:11 PM
Subject: Re: [Qgis-user] Display of Contour Map
  

Press F1  or go to http://www.qgis.org/en/documentation.html


On 2012/09/01 01:39, Federico Nadela wrote:
 
I  now have the .shp file of the contour map on the Layers (left) sideboard. How do I go about displaying the contour map? I noticed that when I clicked on the .shp file that there are many Layer Properties to be filled in. What would be the parameters be to display a contour map? 
>Federico M. Nadela 
>
> 
>From: Zoltan Szecsei mailto:zoltans at geograph.co.za
>To: Federico M Nadela mailto:fmnadela at yahoo.com 
>Cc: qgis-user at lists.osgeo.org 
>Sent: Friday, August 31, 2012 7:17 PM
>Subject: Re: [Qgis-user] QGIS Contour Generation
>  
>
>Hi Federico,
>Please email the list, and not the person directly.
>The purpose of lists is to pool knowledge, not to give
                  courses, so all conversations relevant to the list
                  should stay with the list.
>
>Judging by your unfamiliarity with raster and vector
                  data formats, it seems like you need deeper knowledge
                  about what you are doing, rather than just assistance
                  with the use of QGis.
>
>I don't have any URLs I can suggest for this, but
                  perhaps someone else on this list can help.
>
>Kind regards,
>Zoltan
>
>
>On 2012/08/31 12:29, Federico M Nadela wrote:
> 
>Dear Zoltan, 
>>Many thanks for your prompt reply. I have not used shape file before so you have to walk me through. My DSM is in .tiff format. Can I use that instead of .shp? 
>>Please give me a sample of an acceptable output file. Thanks! 
>>Federico 
>>
>>Sent from my iPhone 
>>
>>On Aug 31, 2012, at 14:47, Zoltan Szecsei <zoltans at geograph.co.za> wrote:
>>
>> 
>>On 2012/08/31 08:36, Federico Nadela wrote:
>>> 
>>>I have reached as far as the Contour tab but unable to specify an acceptable output file path in the Output file for contour lines(vector). I tried to input C:/User/Fritz/Documents/Temp.shp but got an error message that says it is not a directory. I tried other paths but they were all unacceptable. Please advise. Thanks! 
>>>>Federico M. nadela   
>>>> 
>>>>
>>>>_______________________________________________
Qgis-user mailing list Qgis-user at lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user  
Yep, true - if your 'Temp.shp' is not a DIRECTORY within your documents folder.
>>>
>>>What you and I call "shapefiles" is actually a
                      group of 3 or more files that are needed by ESRI
                      and other GIS products that use 'shapefile format'
>>>
>>>For this reason you must specify the name of an
                      existing directory, and not a filename that you
                      want to create.
>>>
>>>Are you sure the "other paths" you tried existed and were actually directory names?
>>>
>>>HTH,
>>>Zoltan
>>>
>>>
>>>
>>>--  ===========================================
Zoltan Szecsei PrGISc [PGP0031]
Geograph (Pty) Ltd.
P.O. Box 7, Muizenberg 7950, South Africa. 65 Main Road, Muizenberg 7945
Western Cape, South Africa.   34° 6'16.35"S 18°28'5.62"E  Tel: +27-21-7884897  Mobile: +27-83-6004028
Fax: +27-86-6115323     http://www.geograph.co.za/
===========================================   
>>_______________________________________________
>>>Qgis-user mailing list
>>>Qgis-user at lists.osgeo.org
>>>http://lists.osgeo.org/mailman/listinfo/qgis-user
>>>         
 
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