{ "info": { "author": "Kyle Wilcox", "author_email": "kyle@axiomdatascience.com", "bugtrack_url": null, "classifiers": [ "Development Status :: 3 - Alpha", "Intended Audience :: Developers", "Intended Audience :: Science/Research", "License :: OSI Approved :: GNU General Public License v3 (GPLv3)", "Operating System :: POSIX :: Linux", "Programming Language :: Python", "Topic :: Scientific/Engineering" ], "description": "Paegan - The Python CDM for Met/Ocean data\n===========\n\n[![Build Status](https://travis-ci.org/asascience-open/paegan.png?branch=master)](https://travis-ci.org/asascience-open/paegan)\n\nPaegan attempts to fill the need for a high level common data model (CDM) library for array based met/ocean data stored in netCDF files or distributed over OPeNDAP.\n\n\nCommon Dataset Functions\n------------------\n### Grids / UGrids\n\n```python\nfrom paegan.cdm.dataset import CommonDataset\nurl = \"http://thredds.axiomalaska.com/thredds/dodsC/PWS_DAS.nc\"\npd = CommonDataset.open(url)\n```\n\n#### Subsets\n#####Bbox\n```python\npd.restrict_bbox((-74, 40, -70, 42))\n```\n#####Time\n```python\nfrom datetime import datetime,timedelta\nending = datetime.utcnow()\nstarting = ending - timedelta(hours=12)\npd.restrict_time((starting, ending))\n```\n#####Depth\n```python\npd.restrict_depth((3,50))\n```\n#####Variables\n```python\npd.restrict_vars((\"u\",\"v\"))\n```\n\n#### Nearest subsetting\n\n#####Time\n```python\nfrom datetime import datetime\nimport pytz\nnow = datetime.utcnow().replace(tzinfo=pytz.utc)\npd.nearest_time(now)\n```\n\n#####Depth\n```python\npd.nearest_depth(5)\n```\n\n#### Regridding\n\n##### Coming Soon\n\n### Discrete Sampling Geometries\n\n#### Coming Soon\n\nSetup\n------------------\nYou are using `virtualenv`, right?\n\n1. Install [virtualenv-burrito](https://github.com/brainsik/virtualenv-burrito)\n2. Create virtualenv named \"paegan-dev\": `mkvirtualenv -p your_python_binary paegan-dev`\n3. Start using your new virtualenv: `workon paegan-dev`\n\nInstallation\n-------------\nPaegan requires python 2.7.x and is available on PyPI.\n\nThe best way to install Paegan is through pip:\n\n```bash\npip install paegan\n```\n\nPaegan requires the following python libraries which will be downloaded and installed through `pip`:\n\n* numpy>=1.7.0\n* scipy\n* netCDF4>=1.0.2 (requires netcdf and hdf5 C libraries)\n* Shapely>=1.2.15 (requires geos C library)\n* pytz\n* python-dateutil>=1.5\n\nIf your NetCDF4 and HDF5 libraries are in non-typical locations, you will need to pass the locations to the `pip` command:\n```bash\nNETCDF4_DIR=path HDF5_DIR=path pip install paegan\n```\n\nThere seems to be a problem installing numpy through `pip` so you may need to install numpy before doing any of the above:\n\n```bash\npip install numpy==1.7.0\n```\n\nRoadmap\n--------\n* Better grid support\n* Regridding tools\n\n\nModules\n--------\nOther modules making use of Paegan\n\n* [paegan-transport](https://github.com/asascience-open/paegan-transport) - Parallelized Lagrangian transport model for NetCDF/OPeNDAP data\n* [paegan-viz](https://github.com/asascience-open/paegan-viz) - Visualization tools for NetCDF/OPeNDAP data\n\n\nTroubleshooting\n---------------\nIf you are having trouble getting any of the paegan functionality to work, try running the tests:\n\n```bash\ngit clone git@github.com:asascience-open/paegan.git`\ncd paegan\npython setup.py test\n```\nIf you want to run the dataset, timevar, depthvar, or roms tests, you will need to edit the test files with paths appropriate for your system.\n\nSome tests requires large files that are not in source control. You can get them here:\n* ETOPO1 Global Bathymetry ([ETOPO1_Bed_g_gmt4.grd](http://s3.amazonaws.com/paegan/resources/ETOPO1_Bed_g_gmt4.grd))\n* HFRadar Gridded Sample ([marcooshfradar20120331.nc](https://s3.amazonaws.com/paegan/resources/marcooshfradar20120331.nc))\n* NCOM Gridded Surface Sample ([ncom_glb_sfc8_hind_2012033100.nc](http://s3.amazonaws.com/paegan/resources/ncom_glb_sfc8_hind_2012033100.nc))\n* POM Gridded 3D Sample ([m201310100.out3.nc](http://s3.amazonaws.com/paegan/resources/m201310100.out3.nc))\n* ROMS C-GRID 3D Sample ([ocean_avg_synoptic_seg22.nc](http://s3.amazonaws.com/paegan/resources/ocean_avg_synoptic_seg22.nc))\n* Regular Grid Sample ([pws_L2_2012040100.nc](http://s3.amazonaws.com/paegan/resources/pws_L2_2012040100.nc))\n\nThey are expected to be located in `/data/lm/tests`, if they are not you can symlink to them in that directory.\n\nContributors\n----------------\n* Kyle Wilcox - [@kwilcox](http://github.com/kwilcox)\n* Alex Crosby - 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