.. _userguide_keyconcepts:

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Key concepts
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The VAMToolbox is composed of geometries, projectors, optimization, and digital light processing (DLP). 

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Geometry
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The :py:mod:`vamtoolbox.geometry` module contains classes to organize flow of data within the toolbox. 

* :py:class:`~vamtoolbox.geometry.TargetGeometry` is used to hold the voxelized target. It is passed into the optimization function.
* :py:class:`~vamtoolbox.geometry.ProjectionGeometry` holds data about the type of projector used, the projection angles, the inclination angle for laminographic geometries, etc. It is passed into the optimization function. 
* :py:class:`~vamtoolbox.geometry.Sinogram` 
* :py:class:`~vamtoolbox.geometry.Reconstruction`


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Voxelization
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Projectors
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:py:mod:`vamtoolbox.Projector`

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Optimization
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:py:mod:`vamtoolbox.Optimizer`

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Digital light processing
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:py:mod:`vamtoolbox.dlp`

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Other
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:py:mod:`vamtoolbox.metrics`