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

Moritz Lennert mlennert at club.worldonline.be
Tue Aug 14 01:13:14 PDT 2018


On 13/08/18 15:30, Markus Neteler wrote:
> 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.

Actually you backported it: 
https://trac.osgeo.org/grass/changeset/72541/grass/branches/releasebranch_7_4/lib/python/pygrass

So, yes, it should work with 7.4.1.

Moritz


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