[GRASS-dev] new addon: i.cutlines - Creates semantically meaningful tile borders

Markus Neteler neteler at osgeo.org
Mon Aug 13 06:30:01 PDT 2018


Hi Moritz,

On Mon, Aug 13, 2018 at 2:04 PM, Moritz Lennert
<mlennert at club.worldonline.be> wrote:
> On 13/08/18 13:41, Markus Neteler wrote:
...
> AFAIK, the only moment where i.cutlines potentially reads the whole image
> would be in the edge detection part. That's why there is the tiling option
> to avoid just that.

I suppose you refer to

tile_width=integer
   Width of tiles for tiled edge detection (pixels)
tile_height=integer
   Height of tiles for tiled edge detection (pixels)
?

> So, unless I'm forgetting something, you should be able
> to work on large images. If you have seen this crash the module, please file
> a bug report.

OK, fine, we'll try and report.

> Note that for versions < 7.5 (I'll have to check whether Pietro's fix was
> backported to 7.4)

I'm not sure either.

> there is a parameter name conflict between i.zc and the
> GridModule class used for the tiling, so you'd have to use i.edge.

At time we use trunk.

thanks,
Markus


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