The Landmarks button on the track window looks in the directory defined by Ncplot uses, though it is not required, a shell environment variableĬalled DATA_DIR as the default directory to locate data files.
Specifically it is developedĪnd maintained on Redhat Enterprise Linux 7. Environment ncplot is written in C, requiring X11/R6 and Motif 1.2 (or later),Īnd the netCDF library 3.0 or later. Getting Started Acquiring ncplot is available at. Has been made to make it "what you see is what you get" between the screen ncplot will plot variables ofĭiffering rates (and from different files) next to each other. Ncplot is NOT for contouring, image or vector data.Ĭenter for Atmospheric Research to view and analyze our aircraft dataĬonventions were designed to store multi-rate data, i.e., variable A may be
Both Low-rate and Mixed-rate files are supported, as well asįiles where the data have been reduced below 1 sps (sample per second), e.g., ncplot allows the user to view time-series data stored inĬonventions. Overview ncplot is an interactive plotting tool for workstations running X11/R5, Detrending, Segment lengths, and Windowing functions.Spectra, Cospectra, Quadrature, Phase and Coherence.It's not command line but 'NcView' may work for you.NCPLOT User's Guide NCPLOT User's Guide Version 4.9.12 values 0 - 10 correspond to a single colour then 10 - 20 to another colour. Will it be gradual or will it be stepped e.g. How is the colour going to be assigned to the values. Say we use blue to red colour ramp then is red a high value or a low value. If colour which colours because these will need to be defined. Questions such as is it going to be grey scale or colour. Part of the problem you will face is that in using a command line you will need to have additional information as to how it is exported setup before hand but this information does not lend itself to a non-GUI environment. I have made something similar using ArcGIS if you have this but it is not command line because that is quite difficult to achieve.
It is probably relatively easy to create something using Java or Python and some GDAL libraries or the like.
What platform are you using? Linux, Windows etc? Whatever the answer I think the answer is you will be struggling to find a command line tool with out creating it yourself. But I have a couple of comments on the subject if you are interested. If there is anything it is probably there.
Here is the official list of software for manipulating NetCDF. # sample every 10th point of the 'z' variable
# open a local NetCDF file or remote OPeNDAP URL The netCDF4 module can be a bit difficult to build, but it's included in the Python(x,y), Enthought Canopy and Continuum Anaconda distributions. Below I read topography data using the OPeNDAP service, so you should be able to run the program without changes. The netCDF4 module will read both NetCDF3, NetCDF4 files, and also read remote NetCDF (or other files) served via the OPeNDAP service. Others have mentioned commercial solutions with ArcGIS, IDL and Matlab, but here's one way to do it using Python, using the netCDF4 module to read the netcdf file, and matplotlib to create the image.