asascience-open / sci-wms Goto Github PK

...for slowly rendering styles, like facets

Use http://code.google.com/p/glumpy/ which is intended to be a testbed for implementing a backend in matplotlib eventually

Eventually want to support regular and cgrids as well as other gridded data formats (HDF, geotiff...)

Use the django test harness

Current:

<GetFeatureInfo>
  <Format>image/png</Format>
  <DCPType>
    <HTTP>
      <Get>
        <OnlineResource xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://wms.glos.us/wms/ontario_fcfmrc_2d/?" xlink:type="simple"/>
      </Get>
    </HTTP>
  </DCPType>
</GetFeatureInfo>

pseudocolor plot is being masked weirdly for cell values since there is no ability to specify the topology. masking is based on a shapely dissolve of the grid/topology but there are some problems with islands/ inner rings and similar features.

so clients and users don't notice that something is happening behind the scenes. Using a separate (parallelpython) process to update the topology netcdf file at the moment, but it happens on wms request, so if the file is out of date, and the user is requesting the dataset that is being updated there is some time to wait untill the response returns.

1. There is a problem when a request crosses both the 0 and 180 lines for a given single image (only half is rendered to the response image)

2. There is a problem when an image is requested that goes all the way around the world and overlaps on the other side. (This may not be solveable elegantly, temp solution is to limit the width that a user can browse in a client.)

Wait for Basemap to be released with the new epsg style kwargs and support more than web mercator projections in the wms

Stuff what you are already shipping into the the 'properties' attr, and you should be set.

FREDSFUNCTION(
  { "type": "Feature",
    "geometry": {
      "type": "Point",
      "coordinates": [100.0, 0.0]
     },
    "properties": {
      { "vc": { "units": "m/s", "values": [ NaN ] }, "uc": { "units": "m/s", "values": [ NaN ] }, "time": { "units": "iso", "values": [ "20120906T000000Z" ] } }
     }
  .}
)

See here for an example, http://www.geojson.org/geojson-spec.html#id2.

contours are convex hulls for cell values since we are not able to specify the topology in those plots for cell positioned values. will want to mask with whatever the final solution is pcolor too..

Should support:

• local folder of netcdf
• thredds catalog

Possibly support:

• csw (that exposes dap)
• waf of iso (that exposes dap)

The elevation info should look a lot like the time info you are already passing. Here is a sample from the OGC spec.

   <Layer> …
   <!-- Specify extent of Layer. Extents are inherited by enclosed Layers. -->
   <Extent name="time" default="2000-10-17">1996-01-01/2000-10-17/P1D</Extent>
   <Extent name="elevation" default="0">0/10000/100</Extent>
   <Extent name="temperature" default="300">230,300,400</Extent>
   </Layer>

Should be a service based system for individual datasets, instead of cron hitting wmstest.... ugh

I'm jotting this issue down so that I don't forget. In theory, if you spit out GFI's in jsonp, I wouldn't have to proxy the request from the javascript client. This would help for the standalone (NHC inundation) viewer.

My homework is to make sure that jsonp would work. Then we can figure out the optimal format.

Not having this is not a deal-breaker, but it would be nice.

The optional element is used in Capabilities XML to declare that one or more dimensional parameters are relevant to the information holdings of that server. The Dimension element does not provide valid values for a Dimension; that is the role of the Extent element described below. A Dimension element includes a required name, a required measurement units specifier, and an optional unitSymbol.

EXAMPLES: The following are some examples of server-defined dimensions:

<Dimension name="wavelength" units="Angstrom" unitSymbol="Ao" />
<Dimension name="temperature" units="Kelvin" unitSymbol="K" />
<Dimension name="pressure_scale_height" units="millibar" unitSymbol="km" />

Dimension elements shall comply with the following rules:

• Dimension name values shall be case-insensitively unique within a service instance and should contain no whitespace.
• Unit names and abbreviations are from the Unified Code for Units of Measure [UCUM]. The required units attribute is from the UCUM "name" column. The optional (but recommended) unitSymbol is from the UCUM "c/s" column (casesensitive abbreviation). Prefix names and symbols may be present as well.

I'm trying to set up wms on different computer, but I keep getting this error. I'm not sure how to fix this error.

try to use: (not working)
$ chmod 666 wms.db

settings.py

DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3', # Add 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'.
'NAME': os.path.join(os.path.dirname(file),"../",'wms.db'), # Or path to database file if using sqlite3.
'USER': '', # Not used with sqlite3.
'PASSWORD': '', # Not used with sqlite3.
'HOST': '', # Set to empty string for localhost. Not used with sqlite3.
'PORT': '', # Set to empty string for default. Not used with sqlite3.
'OPTIONS': { #I add here
'timeout': 20, # and here
} # and here
}
}

The bottom row and right column of pixels in the images (noticed in tiles) are gone (and transparent) in the images being served from the UMASSD SMAST instance (but not the dev instance at ASA).

May be a basemap/matplotlib issue? Will upgrade dev matplotlib/basemap and see if anything changes.

Use the django built-in admin interface and database for web configuration of wms server and datasets. (Replace or work in conjunction with the "server_local_config.py" file.

This portion:

# Please edit the following parameters to setup your pywms
# server.
# 
# Example:
#
#  localhostip = "mydomain.org:8080"
# 
#  datasetpath = {
#                  'fvcom', "http://dapserver/thredds/dodsC/my_fvcom",
#                  'adcirc', "http://dapserver/thredds/dodsC/my_adcirc",
#                  'ike', "http://dapserver/thredds/dodsC/inundation_ike",
#                }
#---------------------------------------------------------

localhostip = "192.168.100.146:7000" # the ip or domain and port
                                     # that you are trying to bind
                                     # the service to
                                     # this is used for the "wmstest" page

# Where are the datasets that you want to serve?
datasetpath = {
    '30yr_gom3':"http://www.smast.umassd.edu:8080/thredds/dodsC/fvcom/hindcasts/30yr_gom3",

    # "dataset_id":"path or OpenDAP endpoint",
    # "dataset_id2":"path or OpenDAP endpoint",
    # "dataset_id3":"path or OpenDAP endpoint",
    }

#---------------------------------------------------------

We don't handle end conditions for the time start and end binary search algorithms. We should.

Issue setting color limits with certain combinations for min/max values. Perhaps something to do with the scale of the colorbargraphic and the size of the axes we are stuffing it into....

Internal configuration, web editable config, or COLORRAMP URL parameter?

[2012-12-14 09:01:30,441] - <> - |Status 500 Error: ['Traceback (most recent call last):\n', ' File "/home/wms/sci-wms/src/pywms/wms/views.py", line 121, in wms\n response = fvDo(action_request, dataset, logger)\n', ' File "/home/wms/sci-wms/src/pywms/wms/views.py", line 1106, in fvDo\n cmap = colormap)\n', ' File "/home/wms/sci-wms/src/pywms/wms/cgrid.py", line 98, in plot\n vectors(lon, lat, var1, var2, mag, ax, norm, cmap, magnitude)\n', ' File "/home/wms/sci-wms/src/pywms/wms/cgrid.py", line 141, in vectors\n scale_units='inches',\n', ' File "/home/wms/.virtualenvs/sciwms/lib/python2.7/site-packages/matplotlib/axes.py", line 6299, in quiver\n q = mquiver.Quiver(self, _args, *_kw)\n', ' File "/home/wms/.virtualenvs/sciwms/lib/python2.7/site-packages/matplotlib/quiver.py", line 393, in init\n X, Y, U, V, C = _parse_args(*args)\n', ' File "/home/wms/.virtualenvs/sciwms/lib/python2.7/site-packages/matplotlib/quiver.py", line 356, in _parse_args\n nr, nc = U.shape\n', 'ValueError: too many values to unpack\n']

Internal configuration, web editable config, or COLORRAMP URL parameter?