ViRBO Autoplot Application (agu2008-20081214)

This demonstration application attempts to allow plotting of data from many data sources, including local files and dods servers. Datasets are identified with URLs, and by the URL's extension a module is used to load the data into the internal data model. Data is then displayed by guessing the rendering method and axis ranges to provide a reasonable, useful view of the data. Additional metadata can then be applied to the data, for example, specifying valid range and fill data.

This development release is an untagged version with experimental features.

Recent changes include:

  1. This has been branched to provide a stable release for AGU 2008. Bugfixes will be pushed to clients.
  2. stable branch contains many pre-agu bugfixes.
  3. support for fractional day of year in ascii tables.
  4. ignore cadence inserts a large value for the cadence into the dataset so that time series is connected.

Known Bugs:

  1. completions can result in extra vap in URI. Remove extra vap.
  2. intermittent settings carry over after data source switch, causing suboptimal autoranging. Reload data to work-around.
  3. in rare cases, autolayout can cause axes to oscillate. Resize canvas to work-around.
  4. improved cadence-guessing still fails in some cases. use "ignore cadence"
  5. some completions don't fire "plot it" event. Press green play button when application is idle after completion.

data is input from:

  • ascii files (.dat,.txt)
  • binary files (.bin)
  • excel spread sheets (.xls)
  • das2Streams (.d2s or .das2Stream)
  • QStreams (.qds), QDataSet on a das2Stream
  • netcdf files (.nc,.ncml)
  • cdf files(.cdf)
  • dods servers (.dds)
  • Cluster Exchange Format files (.cef)
  • Fits Format Files
  • ViRBO's TSDS server
  • Plasma Wave Group das2 Server
  • Images (.jpg, .png, .gif)

    • This is not complete, and limitations include:

  • Quantities of rank 3 dimensionality (e.g. flux(Time,Energy,pitch) are plotted by slicing.
  • Quantities of rank 4 dimensionality cannot be plotted.
  • Vector quantities such as B(GSM) are plotted as a stack of lineplots, with limited controls.

    • autoplot.org is the wiki website, and contains more information than this launch page.