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[netCDF #LCN-240709]: RE: Fwd: RE: unidata summer workshops

Hi Tim,

> Thanks for this.  I've been busy with other projects so I'm just getting back 
> around to trying to get netCDF installed on my windows machine via the cmake 
> GUI.  A couple of questions based on my research:
> 
> 
> 
> ·         What exactly is HDF5 and do I need it if I’m just trying to access 
> readily available netCDF files?

HDF5 is another format and library that netCDF-4 uses for its storage layer to 
implement
more performance features (e.g. compression, parallel I/O) as well as an 
extended data
model that has more primitive types and user-defined types.

Here's 2 FAQs that provide more details about the relationship among netCDF-3, 
netCDF-4,
and HDF5:

  http://www.unidata.ucar.edu/netcdf/docs/faq.html#fv4
  http://www.unidata.ucar.edu/netcdf/docs/faq.html#fv18

You don't netCDF-4 or HDF5 if the files you want to access use the default 
netCDF-3 
"classic" data model and format, or the 64-bit offset format.  Here's how you 
can
tell:

  http://www.unidata.ucar.edu/netcdf/docs/faq.html#fv1_5

> ·         If you think HDF5 worthwhile to have, it doesn’t appear that it is 
> part of the netCDF download you directed me to?  Where would I find it and 
> how do I instruct the cmake GUI to recognize it?

It's not part of netCDF, as it's developed, maintained, and supported by a 
different
organization.  If you decide you need netCDF-4 and the HDF5 library it depends 
on,
you can download it from the HDF Group site:

  http://www.hdfgroup.org/HDF5/

If you download it in binary form and install that, you won't need CMake to 
build it 
from source. But the HDF5 Group provides instructions for building and 
installing it
with CMake, in case you have a need for that.

> ·         If you don’t think HDF5 is necessary for my purposes, how do I 
> instruct the cmake GUI to build without it?

You would provide the CMake option

  -D"ENABLE_NETCDF_4=OFF"

as described in more detail here:

  http://www.unidata.ucar.edu/netcdf/docs_rc/netCDF-CMake.html

> Sorry for what are probably pretty simplistic questions.  This is all new to 
> me.  Thanks for your help!

No problem, glad to help ...

--Russ

> Tim
> 
> 
> 
> **********************************************
> 
> Timothy W. Hawkins
> 
> Professor and Graduate Program Coordinator
> 
> Department of Geography and Earth Science
> 
> Shippensburg University
> 
> 1871 Old Main Drive
> 
> Shippensburg, PA 17257
> 
> 
> 
> Email: address@hidden
> 
> Phone: (717) 477-1662
> 
> Fax: (717) 477-4029
> 
> Web: http://www.ship.edu/geo-ess/
> 
> 
> 
> -----Original Message-----
> From: Unidata netCDF Support [mailto:address@hidden]
> Sent: Wednesday, March 20, 2013 10:47 PM
> To: Hawkins, Timothy (Tim)
> Cc: address@hidden
> Subject: [netCDF #LCN-240709]: RE: Fwd: RE: unidata summer workshops
> 
> 
> 
> > Hi Russ,
> 
> >
> 
> > This was very helpful and I've made some progress now that I have CMake 
> > supported version.  In the configuration step from the CMake GUI I'm 
> > getting the following error that I'm hopeful you can help me resolve.
> 
> >
> 
> >
> 
> >
> 
> > Thanks again for all your help,
> 
> >
> 
> > Tim
> 
> >
> 
> >
> 
> >
> 
> > The C compiler identification is MSVC 17.0.50727.1
> 
> >
> 
> > Check for working C compiler using: Visual Studio 11
> 
> >
> 
> > Check for working C compiler using: Visual Studio 11 -- works
> 
> >
> 
> > Detecting C compiler ABI info
> 
> >
> 
> > Detecting C compiler ABI info - done
> 
> >
> 
> > Could NOT find PkgConfig (missing: PKG_CONFIG_EXECUTABLE)
> 
> 
> 
> The failure to find pkg-config.exe on Windows is not a fatal error; the build 
> should continue.
> 
> 
> 
> > HDF5_LIB-NOTFOUND, HDF5_HL_LIB-NOTFOUND, HDF5_INCLUDE_DIR-NOTFOUND
> 
> >
> 
> > Could NOT find ZLIB (missing: ZLIB_LIBRARY ZLIB_INCLUDE_DIR)
> 
> 
> 
> Here's an answer to a similar question from Ward Fisher, posted to the 
> netcdfgroup mailing list:
> 
> 
> 
> http://www.unidata.ucar.edu/mailing_lists/archives/netcdfgroup/2013/msg00161.html
> 
> 
> 
> --Russ
> 
> 
> 
> 
> 
> > CMake Error at CMakeLists.txt:403 (MESSAGE):
> 
> >
> 
> > HDF5 Support specified, cannot find ZLib.
> 
> >
> 
> > CMake Error: The following variables are used in this project, but they are 
> > set to NOTFOUND.
> 
> >
> 
> > Please set them or make sure they are set and tested correctly in the CMake 
> > files:
> 
> >
> 
> > HDF5_INCLUDE_DIR
> 
> >
> 
> > used as include directory in directory 
> > C:/Users/twhawk/Documents/downloaded_programs/netcdf-4.3.0-rc3
> 
> >
> 
> > used as include directory in directory 
> > C:/Users/twhawk/Documents/downloaded_programs/netcdf-4.3.0-rc3
> 
> >
> 
> > used as include directory in directory 
> > C:/Users/twhawk/Documents/downloaded_programs/netcdf-4.3.0-rc3
> 
> >
> 
> > used as include directory in directory 
> > C:/Users/twhawk/Documents/downloaded_programs/netcdf-4.3.0-rc3
> 
> >
> 
> >
> 
> >
> 
> > **********************************************
> 
> >
> 
> > Timothy W. Hawkins
> 
> >
> 
> > Professor and Graduate Program Coordinator
> 
> >
> 
> > Department of Geography and Earth Science
> 
> >
> 
> > Shippensburg University
> 
> >
> 
> > 1871 Old Main Drive
> 
> >
> 
> > Shippensburg, PA 17257
> 
> >
> 
> >
> 
> >
> 
> > Email: address@hidden<mailto:address@hidden>
> 
> >
> 
> > Phone: (717) 477-1662
> 
> >
> 
> > Fax: (717) 477-4029
> 
> >
> 
> > Web: http://www.ship.edu/geo-ess/
> 
> >
> 
> >
> 
> >
> 
> > -----Original Message-----
> 
> > From: Unidata netCDF Support [mailto:address@hidden]
> 
> > Sent: Tuesday, March 19, 2013 11:24 AM
> 
> > To: Hawkins, Timothy (Tim)
> 
> > Cc: address@hidden<mailto:address@hidden>
> 
> > Subject: [netCDF #LCN-240709]: RE: Fwd: RE: unidata summer workshops
> 
> >
> 
> >
> 
> >
> 
> > Hi Tim,
> 
> >
> 
> >
> 
> >
> 
> > > I've been fiddling with trying to install netCDF on windows using CMake 
> > > as suggested in the link you sent me from last summer's workshop.  I've 
> > > pasted the CMake error below but it looks like I'm missing or am not 
> > > properly pointing to the directory that contains the "CMakeLists.txt" 
> > > file.  Is this file a separate download? Is it included in my download of 
> > > netCDF from unidata?  Should I be pointing to a subdirectory?  Any help 
> > > is appreciated.
> 
> >
> 
> > > CMake Error: The source directory 
> > > "C:/Users/twhawk/Documents/downloaded_programs/netcdf-4.2.1.1" does not 
> > > appear to contain CMakeLists.txt.
> 
> >
> 
> >
> 
> >
> 
> > The netCDF version 4.2.1.1 release from last summer didn't contain the 
> > CMake solution for building on Windows, which was only available at the 
> > time from a separate web page with instructions for installing binary 
> > releases built from CMake:
> 
> >
> 
> >
> 
> >
> 
> > http://www.unidata.ucar.edu/software/netcdf/CompileCMake.html
> 
> >
> 
> >
> 
> >
> 
> > However, the CMake support for building the netCDF C library on Windows has 
> > now been integrated into a release candidate, netCDF-4.3-rc3, available 
> > from:
> 
> >
> 
> >
> 
> >
> 
> > http://www.unidata.ucar.edu/downloads/netcdf/netcdf-rc
> 
> >
> 
> >
> 
> >
> 
> > with instructions for building here:
> 
> >
> 
> >
> 
> >
> 
> > http://www.unidata.ucar.edu/software/netcdf/docs_rc/winbin.html
> 
> >
> 
> >
> 
> >
> 
> > I hope that helps ...
> 
> >
> 
> >
> 
> >
> 
> > --Russ
> 
> >
> 
> >
> 
> >
> 
> > > -----Original Message-----
> 
> >
> 
> > > From: Russ Rew [mailto:address@hidden]
> 
> >
> 
> > > Sent: Wednesday, February 20, 2013 4:13 PM
> 
> >
> 
> > > To: support-netcdf
> 
> >
> 
> > > Cc: 
> > > address@hidden<mailto:address@hidden<mailto:address@hidden%3cmailto:address@hidden>>
> 
> >
> 
> > > Subject: Re: Fwd: RE: unidata summer workshops
> 
> >
> 
> > >
> 
> >
> 
> > >
> 
> >
> 
> > >
> 
> >
> 
> > > Hi Tim,
> 
> >
> 
> > >
> 
> >
> 
> > >
> 
> >
> 
> > >
> 
> >
> 
> > > > ... Is there a crash course way I can learn netCDF.
> 
> >
> 
> > >
> 
> >
> 
> > > > I'm interested in using readily available netCDF files in my own
> 
> >
> 
> > >
> 
> >
> 
> > > > research and teaching but don't really have any experience with the
> 
> >
> 
> > >
> 
> >
> 
> > > > format.  I've fiddled around with netCDF files a bit but I was
> 
> >
> 
> > > > hoping
> 
> >
> 
> > >
> 
> >
> 
> > > > for a user's course.
> 
> >
> 
> > >
> 
> >
> 
> > >
> 
> >
> 
> > >
> 
> >
> 
> > > Yes, I'd recommend at least the first day's worth of material from last 
> > > year's netCDF workshop:
> 
> >
> 
> > >
> 
> >
> 
> > >
> 
> >
> 
> > >
> 
> >
> 
> > > http://www.unidata.ucar.edu/netcdf/workshops/2012/
> 
> >
> 
> > >
> 
> >
> 
> > >
> 
> >
> 
> > >
> 
> >
> 
> > > That would be the first 20 sessions, and it's OK to skip around, as some 
> > > of the subjects are independent of earlier material, but session 3, 5, 6, 
> > > 7, and 9 are pretty basic.  Most of the material is short HTML pages and 
> > > you can just use the icons in the upper or lower left of each page to 
> > > navigate through the material, but some of the pages just link to 
> > > PowerPoint presentations.
> 
> >
> 
> > >
> 
> >
> 
> > >
> 
> >
> 
> > >
> 
> >
> 
> > > --Russ
> 
> >
> 
> > >
> 
> >
> 
> > >
> 
> >
> 
> > Russ Rew                                         UCAR Unidata Program
> 
> >
> 
> > address@hidden<mailto:address@hidden<mailto:address@hidden%3cmailto:address@hidden>>
> >                       http://www.unidata.ucar.edu
> 
> >
> 
> >
> 
> >
> 
> >
> 
> >
> 
> >
> 
> >
> 
> > Ticket Details
> 
> >
> 
> > ===================
> 
> >
> 
> > Ticket ID: LCN-240709
> 
> >
> 
> > Department: Support netCDF
> 
> >
> 
> > Priority: Normal
> 
> >
> 
> > Status: Closed
> 
> >
> 
> >
> 
> >
> 
> Russ Rew                                         UCAR Unidata Program
> 
> address@hidden<mailto:address@hidden>                      
> http://www.unidata.ucar.edu
> 
> 
> 
> 
> 
> 
> 
> Ticket Details
> 
> ===================
> 
> Ticket ID: LCN-240709
> 
> Department: Support netCDF
> 
> Priority: Normal
> 
> Status: Closed
> 
> 
> 
Russ Rew                                         UCAR Unidata Program
address@hidden                      http://www.unidata.ucar.edu



Ticket Details
===================
Ticket ID: LCN-240709
Department: Support netCDF
Priority: Normal
Status: Closed