Re: [gdal-dev] transformation failure from WGS 84 to GRS 1980

I noticed that qgis built against the version I'm running also asks for the transformation. Maybe something to do with the differing ellipsoids. On Nov 11, 2017 08:06, "Andre Joost" wrote: Am 11.11.2017 um 08:45 schrieb Saulteau Don: > I'm running Arch Linux :) > > I don't have that running, b

Re: [gdal-dev] Numeric accuracy

Hi Ari and all, why not use machine epsilon ? somewhat over 1e-16 for double precision, or an even more tolerant tolerance? Most cases of meter coordinates 0.001 is realistic. Given projection errors, a bit more is also defensible. Am I to simplistic

Re: [gdal-dev] Numeric accuracy

On 11/11/2017 06:05 AM, Ari Jolma wrote: I'm making a data request on the corner of the bounding box, let's say it has minimum X of 75042.7273594. I'm setting my minX to that value and I'm enforcing it to that value with MAX (this was introduced bec

Re: [gdal-dev] transformation failure from WGS 84 to GRS 1980

Am 11.11.2017 um 08:45 schrieb Saulteau Don: I'm running Arch Linux :) I don't have that running, but looking at https://www.archlinux.org/packages/?sort=&q=gdal&maintainer=&flagged= I see a package 2.2.2-2 from 2017-11-09 and a package 2.2.2-3 from today. Maybe the packaging went wrong on

Re: [gdal-dev] Numeric accuracy

Ari Jolma kirjoitti 11.11.2017 klo 12:05: I have been bitten twice, once with ArcGIS and now with Rasdaman WCS, with numeric accuracy. I'm making a data request on the corner of the bounding box, let's say it has minimum X of 75042.7273594. I'm setting my minX to that value and I'm enforcing

Re: [gdal-dev] Cannot build for iOS due to GUInt64 error

On samedi 11 novembre 2017 11:09:48 CET Nik Sands wrote: > Hi, > > I’m attempting to build GDAL for the first time in a while, and this is the > first time for GDAL 2.2.2. I’ve getting the following error when building > for iOS arm64 on Mac OS X: > > > geotiff.cpp:7653:

[gdal-dev] Cannot build for iOS due to GUInt64 error

Hi, I’m attempting to build GDAL for the first time in a while, and this is the first time for GDAL 2.2.2. I’ve getting the following error when building for iOS arm64 on Mac OS X: geotiff.cpp:7653:13: error: unknown type name 'GUInt64' typedef GUInt64 WordType;

[gdal-dev] Numeric accuracy

I have been bitten twice, once with ArcGIS and now with Rasdaman WCS, with numeric accuracy. I'm making a data request on the corner of the bounding box, let's say it has minimum X of 75042.7273594. I'm setting my minX to that value and I'm enforcing it to that value with MAX (this was introdu

Re: [gdal-dev] Wiki page for WCS discussion and best practices created

Rahkonen Jukka (MML) kirjoitti 10.11.2017 klo 10:44: Hi, As an initial step I created a new page about WCS into the developers section of the GDAL wiki https://trac.osgeo.org/gdal/wiki/WCS%2Binteroperability I made a bold attempt to begin describing the fundamentals of coordinate systems in