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developer.spectrogram.rebin

Jeremy Faden edited this page Jun 14, 2024 · 3 revisions

Purpose: Work up a plan for introducing new rebin types and making a transition

Audience: developers and interested scientists

The problem

Das2's spectrogram rebinning methods were developed for RPWS data produced by the group, and they do not serve the Autoplot community perfectly well. Nearest Neighbor rebinning was introduced at some point to try and improve the situation, but it has not been optimal. Also, many of the names are confusing. For example, "binAverage" is poor because it's the interpolation that make this routine uniq, and actually different styles of interpolation satisfy most of the needs of scientists.

What also makes this difficult is the names for the algorithms are used in the vap files.

glossary

  • rebinning--the task of going from the data space to the pixel space.

new names for interpolation

  • binAverage -> bilinearInterp or interpXinterpY
  • nearestNeighbor -> binXbinY
  • noInterpolate
  • noInterpolateNoEnlarge

new names for color bars

  • color_wedge -> rainbow
  • wrapped_color_wedge -> wrappedRainbow

See also

Table Of Contents

URIs that Point to Data Files

Download a CDF and Plot it with Autoplot

Load a CDF directly from a website

URIs that Point to Data Servers

Saving to vap files

Loading vap files

Data Sources

CDF Files

HDF/NetCDF Files

Aggregation

CDAWeb

HAPI Servers

Exporting Data

Export Types

Additional controls

Aggregation

Tools

PNGWalk Tool

Data Mash Up

Events List

Run Batch

Advanced Topics

TimeSeriesBrowse and other Capabilities

Events Lists

Caching

Autoranging

Managing Autoplot's Data Cache

Using Autoplot with Python, IDL, and Matlab

Reading data into Python

Reading data into IDL

Reading data into Matlab

QDataSet Data Model

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