[gdal-dev] Tiling with overlap

[Margherita Di Leo]

Ari,

On Mon, Aug 8, 2016 at 3:01 PM, Ari Jolma <ari.jolma at gmail.com> wrote:

> 08.08.2016, 15:19, Margherita Di Leo kirjoitti:
>
> Dear all,
>
> is there a simple way to create tiles with a certain overlap?
>
>
> Do you mean by "overlap" the geographic area the tiles should cover?
> gdal2tiles.py creates the tiles for the area the source dataset covers. So
> you can control the area through the source dataset.
>

Thanks for your answer, sorry I'm not sure I understand the methodology you
are proposing. Let me explain what I'm trying to do so that the problem is
clearer. I have a dataset that is a global coverage, e.g. GMTED [1]. That
is a tiled dataset. However for my processing chain I need tiles that
overlap on each other for a certain number of pixels. This means that the
area at the border of each tile should be covered by the tile itself and by
the adjacent one to certain extent.
My method would be the following. I would create a virtual mosaic and then
create the tiles with this rule.  From the manual of gdal2tiles.py it is
not clear to me if i can obtain this result. What do you mean by "you can
control the area through the source dataset"?

Thank you


[1] http://topotools.cr.usgs.gov/gmted_viewer/


-- 
Margherita Di Leo
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/gdal-dev/attachments/20160808/c52a98c1/attachment.html>