[GRASS-user] assign heigght value to pixel(x,y)

[vinod kumar]

Hi Markus Neteler,

yes, importing pixel values with r.in ascii and patch into existing into
raster is simple easy for particular pixel,
but if we want to assign a height value to more pixels, for example
assigning height value to buildings in a
particular area in raster map is difficult as we don't no to which pixel
value we have to assign height value and
checking each pixel value is difficult. And i am more intrested by doing
automatic process.

Thanks in advance,
nani.

On Sat, Apr 16, 2011 at 10:26 AM, Markus Neteler <neteler at osgeo.org> wrote:

> On Sat, Apr 16, 2011 at 7:23 PM, vinod kumar <nani.kunithi at gmail.com>
> wrote:
> > Hi Daniel Victoria,
> >
> > d.rast.edit is to edit the raster data and i want to know how to assign
> 'Z'
> > value or height value to a particular pixel(x,y) and this would be
> helpful
> > if there is an automatic algorithm  for assigning height value for
> selected
> > pixels.
>
> The easiest way is:
> - import pixel with r.in.ascii
> - patch into existing raster map with r.patch
>
> Markus
>
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