[GRASS-user] Spatial data exchange formats

[Markus Metz]

Trying to help those trying to help Rich:

the tiling scheme is available in a web viewer here:

https://gis.dogami.oregon.gov/maps/lidarviewer/

the archive containing the data in question is available here:

http://www.oregongeology.org/pubs/ldq/LDQ-45122C3.zip (1.8 GB)

you need to patch together all bare earth coverages from all years in order
to get a more complete coverage

Markus M


On Thu, Jun 21, 2018 at 8:27 PM, Daniel Victoria <daniel.victoria at gmail.com>
wrote:

> Rich,
>
> I was able to open your GRID in QGis. And if it works in QGis, it should
> work in GRASS too.
>
> What I've seen is that most of you data has values -3.4028e+38 which
> appears to be the NODATA value. So, are you sure this part of the data is
> not a corner of the mapped area? Because there is valid data for the upper
> and left borders. Also, this data is not a 1 x 1 degree rectangle, as you
> said it should be. So this makes me believe that we are looking at just one
> corner of the data, where it happens to have a lot of NODATA cells.
>
> Cheers
> Daniel
>
>
> On Thu, Jun 21, 2018 at 3:17 PM Markus Metz <markus.metz.giswork at gmail.com>
> wrote:
>
>>
>>
>> On Thu, Jun 21, 2018 at 7:24 PM, Rich Shepard <rshepard at appl-ecosys.com>
>> wrote:
>> >
>> >   My problems are that pointing r.in.gdal to the hdr.adf files display
>> only
>> > the strange wedge/rectangle I attached to messages earlier in this
>> thread.
>> > They should be retangles for a full 1 degree x 1 degree topographic
>> quad map
>> > with colors varying by elevation.
>>
>> No, they should not. They cover a part of that rectangle. You need to
>> patch coverages from different years together in order to get a more
>> complete coverage.
>>
>> >
>> >   My need is to learn why I'm not getting clean imports of either
>> bare_earth
>> > or highest_hits for any of the three years of data. This is why this
>> thread
>> > has continued so long. The only option to r.in.gdal I've used is '-o' to
>> > use the source's projection for the map.
>>
>> The -o flag of r.in.gdal overrides the source's projection for the map
>> instead of using it.
>>
>> Markus M
>>
>> >
>> > Thanks,
>> >
>> >
>> > Rich
>> >
>> >
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>>
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