Re: [gdal-dev] Hints that a raster band represents a DEM?

2022-04-29 Thread Michael Sumner
read from a global dem via the warper and do a correlation test? :) On Sat, Apr 30, 2022 at 11:11 AM Nyall Dawson wrote: > Hi list, > > I'm looking for any tips on potential approaches I could use to > automagically guess that a particular band from a data source > represents an elevation surf

[gdal-dev] Hints that a raster band represents a DEM?

2022-04-29 Thread Nyall Dawson
Hi list, I'm looking for any tips on potential approaches I could use to automagically guess that a particular band from a data source represents an elevation surface. I haven't been able to find any common metadata components in the files I've investigated which could help indicate this, but may

Re: [gdal-dev] GDAL 3.4.3 RC1 available

2022-04-29 Thread Jeff McKenna
Sorry for the delay in my usual testing, no issues here on Windows, with the MS4W build environment. -jeff -- Jeff McKenna GatewayGeo: Developers of MS4W, MapServer Consulting and Training co-founder of FOSS4G http://gatewaygeo.com/ On 2022-04-22 6:32 a.m., Even Rouault wrote: Hi, I ha

[gdal-dev] CMake: undefined reference to symbol dlerror

2022-04-29 Thread Javier Jimenez Shaw
We have a link problem on Linux when using GDAL transiently. If we link the unit tests for a library which depends on GDAL, i.e. an executable which transiently depends on GDAL through our library, we get the following linker error: /usr/bin/ld: libs/ioimage/tests/CMakeFiles/tests_unit_ioimage.dir

Re: [gdal-dev] GDAL compilation on Centos8 with MrSID

2022-04-29 Thread Johannes Paul
For the record, I finally managed to build GDAL with MrSID on Centos8 (gcc 8.5). Basically the MrSID SDK is overcautiously restricting itself to the gcc version that was current at the time it was released (gcc5), and the build can be fixed by patching the lt_platform.h header manually, as detailed