I have a paper on this:
https://scholar.google.com/citations?view_op=view_citation&hl=en&user=yYpireIJ&authuser=1&citation_for_view=yYpireIJ:d1gkVwhDpl0C
It's kind of old now, but the literature cited is a pretty good place to
start to learn how people do this. I used ArcGIS to do mine
Hola muchas gracias!
Saludos
Eddison
2017-09-15 8:50 GMT-06:00 Andreas Neumann :
> Hi Eddisson?
>
> Which z value? In your example you have different z-values attached to
> vertices, but you can only hold a single z-value per record.
>
> There are expressions like z(feature) that work on points
https://faunaliagis.wordpress.com/2013/08/14/transfer-3d-shapefiles-z-values-to-the-table-of-attributes/
Lene Fischer
Associate Professor
University of Copenhagen
Department of Geoscience and Natural Resource Management
Forest and Landscape College
Nødebovej 77a
3480 Fredensborg
Denmark
MOB +
Hi Eddisson?
Which z value? In your example you have different z-values attached to
vertices, but you can only hold a single z-value per record.
There are expressions like z(feature) that work on points, and there are
expressions like point_n(LineStringGeom) to access a certain node. With
th
You can use gdal2xyz algorithm from Processing to export
raster values into CSV format.
2017-09-13 8:45 GMT+03:00 David Reid :
> Hello qgis users,
>
>
>
> I am very new to qgis and would like information on how to export raster
> data as a text file.
>
>
>
> Cheers
>
>
>
> David Reid
>
>
>
>
>
>
>
I have four years data and iam going to do shore
Line change change analysis of estuary .after downloading the data what is the
next procedure .please send me.
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David,
also you may find that even though you select a different format it only
saves as a tiff. If you look at the box that states the command line
gdaltranslate is using, the -o flag is the output format. You can check the
box next to the command line and change that manually if it doesn't change
Hi David,
rasters come in a few different flavours.
RGB/greyscale photographic type images such as an aerial photograph or a
georeferenced scan of a map are one. There's not a lot of point exporting
those as text.
There are also Raster images where the RGB / black bands represent a
frequency or at
