[GRASS-user] More QUESTIONS !?

[Nikos Alexandris]

Please excuse me for my "poor" descriptions before.

The kinf of "Link" tool:
ENVI, and ERDAS as well, provide a "Link" tool with which one can open,
side-by-side, images of the same region and while panning, zooming or
resizing one of the images, these actions are automatically mirrored to the
othe image.

Why is this useful:
I provide a (small) screenshot to illustrate my need (!). In this example I
try to visually interpret the land cover on the image which is on the right
(it is a SPOT4 acquisition). To support this task, whenever it is difficult
to recognize something, I use the orthophotos (in my screenshot located on
the left side). The tool is capable to link multiple images with the same or
different resolution, with the pre-condition that they are georeferenced

(In this example the object of interest is a small football(soccer!)
stadium... !)

.
Again... I am just putting questions... I think, in most cases, asking
doesn't hurt.
Is there an alternative way to replace this method (supporting a visual
interpretation with ancillary data)? Would it be very difficult to implement
something like that?

Thank you,
Nikos.



Michael Barton wrote:
> 
> I still don't understand what you mean by this (I don't use Imagine or
> ENVI). Rasters and vectors georeferenced to the same geographic space are
> by
> default linked in the same location/mapset.
> 
> Michael
> 
> 
> On 11/3/07 3:35 PM, "Nikos Alexandris"
> <nikos.alexandris at felis.uni-freiburg.de> wrote:
> 
>> About the link (pixel-by-pixel comparison): I was not so clear. I meant a
>> tool like the one that ERDAS Imagine and ENVI offer, so one can link
>> geographically various data (raster/ vector) for the same region.
> 
> __________________________________________
> Michael Barton, Professor of Anthropology
> Director of Graduate Studies
> School of Human Evolution & Social Change
> Center for Social Dynamics & Complexity
> Arizona State University
> 
> phone: 480-965-6213
> fax: 480-965-7671
> www: http://www.public.asu.edu/~cmbarton
> 
> 
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