[OSGeo Africa] How to load .ort DEM into QGIS

[Melissa Akoue Mve]

Hi Aslam,

Thank you.  The shapefiles will be very helpful.  I saw lower down on ur
email there was a question directed at me asking if there was another
format to output DEMs.  I am accustomed to working with DEM's in Geotiff
format.  Although, having the DEM in ort format is helpful for surveyors
are working with a smaller areas, because its easier to extract only the
points which are needed and create a tin and contours etc.  However, I am
doing a GIS analysis for the whole of the Western Cape, in which case the
ort files were tedious to convert to raster for to do the slope analysis.
For this reason I decided to rather download the STRM30 geotiffs.

I appreciate you response to my email.

Kind regards,
Melissa

2015-05-05 14:54 GMT+02:00 Aslam Parker <Aslam.Parker at drdlr.gov.za>:

>   Hi All
>
>
>
> We have exported the NGI Western Cape DEM to shapefile format. Please
> contact Raoul Duesimi if you would like a copy.
> Raoul.Duesimi at drdlr.gov.za  021 6584372.
>
>
>
> The national STRM30 DEM is also conveniently downloaded and available from
> NGI, please contact  sales at drdlr.gov.za or call 021 658 4300
>
>
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>
> [image: Freedom Month 2015]
>
>
>
>   *From:* Aslam Parker
> *Sent:* 24 April 2015 11:33 AM
> *To:* Cameron Williams; Marnitz van der Merwe; Raoul Duesimi; Sue
> Kirschner
> *Subject:* FW: [OSGeo Africa] How to load .ort DEM into QGIS
>
>
>
> Dear Melissa
>
>
>
> Is there any other format that we can our DEMS out in?
>
>
>
> *From:* africa-bounces at lists.osgeo.org [
> mailto:africa-bounces at lists.osgeo.org <africa-bounces at lists.osgeo.org>] *On
> Behalf Of *Melissa Akoue Mve
> *Sent:* 24 April 2015 11:10 AM
> *To:* africa at lists.osgeo.org
> *Subject:* [OSGeo Africa] How to load .ort DEM into QGIS
>
>
>
> Hi All,
>
>
>
> I need to do a slope analysis of the whole Western Cape area.   I had
> planned to do this with the raster tool set in QGIS but after getting the
> DEM's from the NGI I discovered their DEMs are in a .ort format which is
> not a standard GDal format.
>
>
>
> I was informed that the only way to load this .ort into QGIS is by
> converting it to a CSV and then loading the CSV file into QGIS, and then
> converting it to raster when in DEM.   I have tried this but it is
> laborious and will take too long because there are more than 50 NGI DEMs
> that make up the Western Cape area.
>
>
>
> Does anyone know of a simpler way to load the .ort file.   I have searched
> for ways to convert the .ort to a geotiff but I havent been successful yet,
>
>
>
> Kind Regards,
>
> Melissa Akoue Mve,
>
>
>
>
>
>
>
>
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