Hi List,
I have a geoid in AAIGRID-format, with the following header:
ncols 1001
nrows 731
xllcenter 40.0
yllcenter 6045000.0
cellsize 500.0
NODATA_value
GDAL will read this just fine, and report:
Driver: AAIGrid/Arc/Info ASCII Grid
Files: dkgeoid13b.utm32
Size is 1001, 731
Coordinat
The georaster driver uses GDAL subdataset to browse the database as you can see
here:
gdal.org/frmt_georaster.html section "Browsing the database for GeoRasters"
That is not a big deal because there are other ways go around it.
But it can get a little confusing for users accustomed to use that
Le mercredi 18 novembre 2015 19:42:30, Gane R a écrit :
> Here is link to a GeoPDF (
> https://drive.google.com/file/d/0B4shTM1bPS5TMmk2OWxuTGJpY1k/view?usp=shari
> ng) this has a mile offset from the current location,
> on GDAL gdal-2.0.1 when gdalwarp warps the PDF (poppler driver) to GeoTIF
>
>
Le mercredi 18 novembre 2015 20:22:38, Ivan Lucena a écrit :
> Hi there.
>
>
> Is there a limit on the number of subdatasets that GDAL can handle?
There's no hard-coded limit AFAIK. Should be memory bound. But performance of
various stuff handing lists might not be great with a big number.
>
Here is link to a GeoPDF (
https://drive.google.com/file/d/0B4shTM1bPS5TMmk2OWxuTGJpY1k/view?usp=sharing)
this has a mile offset from the current location,
on GDAL gdal-2.0.1 when gdalwarp warps the PDF (poppler driver) to GeoTIF
Here is gdalinfo for the file
Driver: PDF/Geospatial PDF
Files: Ass
Hi Even,Ok, that clears things up a little. I guess the real question I have at
this point is - which is correct in this circumstance?
The original GeoTIFF?
ArcGIS?
GDAL's conversion?
None of the above? I get the feeling it's all a bit subjective.
>From your comments, I'm surprised this does
I found in did that the GDALGCPsToGeoTransform using the pixels values for
calculation:
At gdal_misc.cpp :
padfGeoTransform[1] = (pasGCPs[1].dfGCPX - pasGCPs[0].dfGCPX) /
(pasGCPs[1].dfGCPPixel - pasGCPs[0].dfGCPPixel);
padfGeoTransform[0] = pasGCPs[0].dfGCPX - pasGCPs[0].dfGCPPixel *
padfGeoTr
On 18.11.2015 11:59, Bar Ori wrote:
Thanks Ari for your reply.
In my situation, sometimes I am working with rectangles and sometimes
not. Depends the source of information.
I thought to always use the GCPs as follows:
In case my shape has rectangular form, so the dataSet.GetGCPCount()
wi
Thanks Ari for your reply.
In my situation, sometimes I am working with rectangles and sometimes not.
Depends the source of information.
I thought to always use the GCPs as follows:
In case my shape has rectangular form, so the dataSet.GetGCPCount() will return
me “0” and I will use the dataSet.
Bar,
I think you are setting the GCPs up wrongly if you want them to be at
the corners.
GCP(LeftDown.X, LeftDown.Y, LeftDown.Z, Height - 0.5, null, "4") does
not have 0 before Height-0.5.
GCPsToGeoTransform checks the special case of GCPs in rectangular shape
and in top-left, top-right, bo
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