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ACALib is a software package that implements several algorithms and tools for analyzing spectroscopic data cubes, images and spectra. The library consist in a coherent framework for developing novel webservices for processing data on-line in the Chilean Virtual Observatory, but it also offers a generic API for developing stand-alone applications. The algorithms automatically connects to VO services, and the library is compatible with the SAMP protocol for interacting with other applications like Topcat or Aladin.
The library is divided into 4 modules. The CORE module has the main classes that represent and manipulate astronomical data. The IO module provides the workspace abstraction, read/write routines, VO communication interfaces, widgets and tools for 3D visualization of spectroscopic cubes, etc. The SYNTHETIC module generates synthetic data (spectral lines, flux distributions, meta-data, etc). The PROCESS module contains the algorithms developed by ChiVO so far.