SASVIEW(1)

📦 version 6.2.0, in debian bookworm, debian trixie, ubuntu jammy, ubuntu noble, ubuntu questing, ubuntu resolute, ubuntu stonking

✨ NAME ✨

okay bestie, this is sasview(1) — the manual page for SasView, and we're about to make you a whole expert 💖

🌸 DESCRIPTION 🌸

SasView is software for the analysis of Small-Angle Scattering (SAS) data. that's the whole vibe, that's the assignment.

What does she do with it though? She takes analytic functions that describe different types of material microstructure and fits them to your experimental data, so you can figure out the shape, the size, and the degree of ordering. literally the glow-up of your data 🦋

And she doesn't stop there, no ma'am. SasView also ships with tools for calculating:

scattering length densities
slit sizes
resolution
fringe thicknesses/d-spacings
the (Porod) invariant (aka 'total scattering')
distance distribution functions

periodt. 💅

💖 SASVIEW USER DOCUMENTATION 💖

NOTE: on Windows, hit [Alt]-[Cursor left] to bounce back to the previous page 👈

The menu bar sitting at the top of the SasView window is your gateway to the extra features of the program. think of it as the little door to Narnia, except it's Unix and it's scattering data.

🍓 File

The File option is how you load data into SasView for analysis, or save the work you've been doing. protect your progress bestie, always.

Data can be loaded in a few different ways:

one file at a time
by selecting multiple files
by loading an entire folder of files — and in that case, SasView will attempt to make an intelligent guess as to what to load, based on the file formats it recognises in the folder! (yes she's guessing. yes it's usually right. no cap.)

A SasView session can also be saved and reloaded as an 'Analysis' — that's an individual model fit or invariant calculation, etc — or as a 'Project', which is everything you have done since starting your SasView session. the whole main character arc, preserved 😭

🦋 Edit

The Edit option lets you:

undo/redo your recent changes
copy and paste parameters between SasView analysis windows
copy parameters from a SasView analysis window to the Clipboard as either tab-delimited text (compatible with Microsoft Excel) or LaTex-wrapped text
generate a summary 'Report' of the most recent analysis performed
reset parameter values in the P(r) Inversion analysis page

💜 View

The View option lets you:

show the Batch Fitting Results Panel if it has been closed
show/hide the Data Explorer Panel
show/hide the Toolbar of icons below the Menu Bar
select the default location that SasView looks in for data to analyse — the SasView installation directory, the initial default, or a custom folder. NB: any change only takes effect when SasView is restarted 🔁
change the default assignment of categories (Shapes, Shape-independent, Structure Factor) for fitting model functions

🌈 Tools

The Tools option provides access to a comprehensive range of tools and utilities. see tools for more information 👀

👑

Window

The Window option lets you select which SasView windows are visible. that's it, that's the power move.

🔥 Analysis

The Analysis option is the whole point, honestly — it gives you access to the key functionality of SasView:

Model Fitting
P(r) Inversion
Invariant Analysis
Correlation Function Analysis (SasView 4.1 and later)

See analysis for more information.

🧚 Fitting

The Fitting option lets you:

create a new FitPage
change optimiser (under Fit Options)
view fit parameter correlations, distributions, and convergence traces (under Fit Results)
create/edit a Plugin Model

Additional functionality is available under this menu option during particular types of model fitting, including:

setting up a Constrained or Simultaneous Fit
combining a Batch Fit (an obscure capability) 🙈
setting up Chain Fitting

🎀 Help

The Help option gives you access to:

this help documentation
a tutorial on using SasView (in pdf format)
information on how to acknowledge SasView in publications
information about the version of SasView you are using
the marketplace
a check to see if there is a more recent version of SasView

NOTE: This help document was last changed by Steve King, 10Oct2016 📅

💫 Fitting & Other Analyses 💫

NOTE: on Windows, hit [Alt]-[Cursor left] to return to the previous page 👈

⭐ Tools & Utilities ⭐

NOTE: on Windows, hit [Alt]-[Cursor left] to return to the previous page 👈

🫶 Working with SasView 🫶

NOTE: on Windows, hit [Alt]-[Cursor left] to return to the previous page 👈

🍓 Tutorials 🍓

NOTE: on Windows, hit [Alt]-[Cursor left] to return to the previous page 👈

Getting Started with Sasview
Old Tutorial

👑 DEVELOPER DOCUMENTATION 👑

NOTE: on Windows, hit [Alt]-[Cursor left] to return to the previous page 👈

📖 Contents 📖

okay bestie, buckle UP 💖 this is the full map of every single module in the tree, and yes we are listing literally all of them, because that's the vibe. no skimming, no "etc.", we don't do that here. 🌈

src
src package

📦 Subpackages

src.sas package
- Subpackages
  - src.sas.sascalc package

🧪 `src.sas.sascalc` package

Subpackages
- src.sas.sascalc.calculator package
  - Subpackages
    - src.sas.sascalc.calculator.c_extensions package
  - Module contents
  - Submodules
    - src.sas.sascalc.calculator.BaseComponent module
    - src.sas.sascalc.calculator.instrument module
    - src.sas.sascalc.calculator.kiessig_calculator module
    - src.sas.sascalc.calculator.resolution_calculator module
    - src.sas.sascalc.calculator.sas_gen module
    - src.sas.sascalc.calculator.slit_length_calculator module
- Module contents
- src.sas.sascalc.corfunc package
  - Submodules
    - src.sas.sascalc.corfunc.corfunc_calculator module
    - src.sas.sascalc.corfunc.transform_thread module
  - Module contents
- src.sas.sascalc.data_util package
  - Submodules
    - src.sas.sascalc.data_util.calcthread module
    - src.sas.sascalc.data_util.err1d module
    - src.sas.sascalc.data_util.formatnum module
    - src.sas.sascalc.data_util.nxsunit module
    - src.sas.sascalc.data_util.odict module
    - src.sas.sascalc.data_util.ordereddict module
    - src.sas.sascalc.data_util.ordereddicttest module
    - src.sas.sascalc.data_util.pathutils module
    - src.sas.sascalc.data_util.qsmearing module
    - src.sas.sascalc.data_util.registry module
    - src.sas.sascalc.data_util.uncertainty module
    - src.sas.sascalc.data_util.uniquelist module
  - Module contents
- src.sas.sascalc.dataloader package
  - Subpackages
    - src.sas.sascalc.dataloader.readers package
      - Submodules
        
        src.sas.sascalc.dataloader.readers.IgorReader module
        
        src.sas.sascalc.dataloader.readers.abs_reader module
        
        src.sas.sascalc.dataloader.readers.anton_paar_saxs_reader module
        
        src.sas.sascalc.dataloader.readers.ascii_reader module
        
        src.sas.sascalc.dataloader.readers.associations module
        
        src.sas.sascalc.dataloader.readers.cansas_constants module
        
        src.sas.sascalc.dataloader.readers.cansas_reader module
        
        src.sas.sascalc.dataloader.readers.cansas_reader_HDF5 module
        
        src.sas.sascalc.dataloader.readers.danse_reader module
        
        src.sas.sascalc.dataloader.readers.hfir1d_reader module
        
        src.sas.sascalc.dataloader.readers.nexus_reader module
        
        src.sas.sascalc.dataloader.readers.red2d_reader module
        
        src.sas.sascalc.dataloader.readers.sesans_reader module
        
        src.sas.sascalc.dataloader.readers.tiff_reader module
        
        src.sas.sascalc.dataloader.readers.xml_reader module
      - Module contents
  - Submodules
    - src.sas.sascalc.dataloader.data_info module
    - src.sas.sascalc.dataloader.loader module
    - src.sas.sascalc.dataloader.manipulations module
  - Module contents
- src.sas.sascalc.file_converter package
  - Subpackages
  - Submodules
    - src.sas.sascalc.file_converter.bsl_loader module
    - src.sas.sascalc.file_converter.cansas_writer module
    - src.sas.sascalc.file_converter.nxcansas_writer module
    - src.sas.sascalc.file_converter.otoko_loader module
    - src.sas.sascalc.file_converter.red2d_writer module
  - Module contents
- src.sas.sascalc.fit package
  - Submodules
    - src.sas.sascalc.fit.AbstractFitEngine module
    - src.sas.sascalc.fit.BumpsFitting module
    - src.sas.sascalc.fit.Loader module
    - src.sas.sascalc.fit.MultiplicationModel module
    - src.sas.sascalc.fit.expression module
    - src.sas.sascalc.fit.pluginmodel module
  - Module contents
- src.sas.sascalc.invariant package
  - Submodules
    - src.sas.sascalc.invariant.invariant module
    - src.sas.sascalc.invariant.invariant_mapper module
  - Module contents
- src.sas.sascalc.pr package
  - Subpackages
    - src.sas.sascalc.pr.c_extensions package
      - Module contents
    - src.sas.sascalc.pr.fit package
      - Submodules
        
        src.sas.sascalc.pr.fit.AbstractFitEngine module
        
        src.sas.sascalc.pr.fit.BumpsFitting module
        
        src.sas.sascalc.pr.fit.Loader module
        
        src.sas.sascalc.pr.fit.expression module
      - Module contents
  - Submodules
    - src.sas.sascalc.pr.distance_explorer module
    - src.sas.sascalc.pr.invertor module
    - src.sas.sascalc.pr.num_term module
  - Module contents
- src.sas.sascalc.realspace package
  - Submodules
    - src.sas.sascalc.realspace.VolumeCanvas module
  - Module contents
- src.sas.sascalc.simulation package
  - Submodules
    - src.sas.sascalc.simulation.setup module
  - Module contents
Module contents

🖼️ `src.sas.sasgui` package

Subpackages
- src.sas.sasgui.guiframe package
  - Subpackages
    - src.sas.sasgui.guiframe.local_perspectives package
      - Subpackages
        
        src.sas.sasgui.guiframe.local_perspectives.data_loader package
        
        Submodules
        
        src.sas.sasgui.guiframe.local_perspectives.data_loader.data_loader module
        
        src.sas.sasgui.guiframe.local_perspectives.data_loader.load_thread module
        
        Module contents
        
        src.sas.sasgui.guiframe.local_perspectives.plotting package
        
        Submodules
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.AnnulusSlicer module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.Arc module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.AzimutSlicer module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.BaseInteractor module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.Edge module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.Plotter1D module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.Plotter2D module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.SectorSlicer module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.SimplePlot module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.SlicerParameters module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.appearanceDialog module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.binder module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.boxMask module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.boxSlicer module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.boxSum module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.detector_dialog module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.graphAppearance module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.masking module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.plotting module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.profile_dialog module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.sector_mask module
        
        src.sas.sasgui.guiframe.local_perspectives.plotting.slicerpanel module
        
        Module contents
      - Module contents
  - Submodules
    - src.sas.sasgui.guiframe.CategoryInstaller module
    - src.sas.sasgui.guiframe.CategoryManager module
    - src.sas.sasgui.guiframe.aboutbox module
    - src.sas.sasgui.guiframe.acknowledgebox module
    - src.sas.sasgui.guiframe.config module
    - src.sas.sasgui.guiframe.custom_pstats module
    - src.sas.sasgui.guiframe.customdir module
    - src.sas.sasgui.guiframe.dataFitting module
    - src.sas.sasgui.guiframe.data_manager module
    - src.sas.sasgui.guiframe.data_panel module
    - src.sas.sasgui.guiframe.data_processor module
    - src.sas.sasgui.guiframe.data_state module
    - src.sas.sasgui.guiframe.documentation_window module
    - src.sas.sasgui.guiframe.dummyapp module
    - src.sas.sasgui.guiframe.events module
    - src.sas.sasgui.guiframe.gui_manager module
    - src.sas.sasgui.guiframe.gui_statusbar module
    - src.sas.sasgui.guiframe.gui_style module
    - src.sas.sasgui.guiframe.gui_toolbar module
    - src.sas.sasgui.guiframe.panel_base module
    - src.sas.sasgui.guiframe.pdfview module
    - src.sas.sasgui.guiframe.plugin_base module
    - src.sas.sasgui.guiframe.proxy module
    - src.sas.sasgui.guiframe.report_dialog module
    - src.sas.sasgui.guiframe.startup_configuration module
    - src.sas.sasgui.guiframe.utils module
  - Module contents
- src.sas.sasgui.perspectives package
  - Subpackages
    - src.sas.sasgui.perspectives.calculator package
      - Submodules
        
        src.sas.sasgui.perspectives.calculator.aperture_editor module
        
        src.sas.sasgui.perspectives.calculator.calculator module
        
        src.sas.sasgui.perspectives.calculator.calculator_widgets module
        
        src.sas.sasgui.perspectives.calculator.collimation_editor module
        
        src.sas.sasgui.perspectives.calculator.console module
        
        src.sas.sasgui.perspectives.calculator.data_editor module
        
        src.sas.sasgui.perspectives.calculator.data_operator module
        
        src.sas.sasgui.perspectives.calculator.density_panel module
        
        src.sas.sasgui.perspectives.calculator.detector_editor module
        
        src.sas.sasgui.perspectives.calculator.gen_scatter_panel module
        
        src.sas.sasgui.perspectives.calculator.image_viewer module
        
        src.sas.sasgui.perspectives.calculator.kiessig_calculator_panel module
        
        src.sas.sasgui.perspectives.calculator.load_thread module
        
        src.sas.sasgui.perspectives.calculator.model_editor module
        
        src.sas.sasgui.perspectives.calculator.pyconsole module
        
        src.sas.sasgui.perspectives.calculator.resolcal_thread module
        
        src.sas.sasgui.perspectives.calculator.resolution_calculator_panel module
        
        src.sas.sasgui.perspectives.calculator.sample_editor module
        
        src.sas.sasgui.perspectives.calculator.sld_panel module
        
        src.sas.sasgui.perspectives.calculator.slit_length_calculator_panel module
        
        src.sas.sasgui.perspectives.calculator.source_editor module
      - Module contents
    - src.sas.sasgui.perspectives.corfunc package
      - Submodules
        
        src.sas.sasgui.perspectives.corfunc.corfunc module
        
        src.sas.sasgui.perspectives.corfunc.corfunc_panel module
        
        src.sas.sasgui.perspectives.corfunc.corfunc_state module
        
        src.sas.sasgui.perspectives.corfunc.plot_labels module
      - Module contents
    - src.sas.sasgui.perspectives.file_converter package
      - Submodules
        
        src.sas.sasgui.perspectives.file_converter.converter_panel module
        
        src.sas.sasgui.perspectives.file_converter.converter_widgets module
        
        src.sas.sasgui.perspectives.file_converter.file_converter module
        
        src.sas.sasgui.perspectives.file_converter.frame_select_dialog module
        
        src.sas.sasgui.perspectives.file_converter.meta_panels module
      - Module contents
    - src.sas.sasgui.perspectives.fitting package
      - Subpackages
      - Submodules
        
        src.sas.sasgui.perspectives.fitting.basepage module
        
        src.sas.sasgui.perspectives.fitting.batchfitpage module
        
        src.sas.sasgui.perspectives.fitting.console module
        
        src.sas.sasgui.perspectives.fitting.fit_thread module
        
        src.sas.sasgui.perspectives.fitting.fitpage module
        
        src.sas.sasgui.perspectives.fitting.fitpanel module
        
        src.sas.sasgui.perspectives.fitting.fitproblem module
        
        src.sas.sasgui.perspectives.fitting.fitting module
        
        src.sas.sasgui.perspectives.fitting.fitting_widgets module
        
        src.sas.sasgui.perspectives.fitting.gpu_options module
        
        src.sas.sasgui.perspectives.fitting.hint_fitpage module
        
        src.sas.sasgui.perspectives.fitting.model_thread module
        
        src.sas.sasgui.perspectives.fitting.models module
        
        src.sas.sasgui.perspectives.fitting.pagestate module
        
        src.sas.sasgui.perspectives.fitting.report_dialog module
        
        src.sas.sasgui.perspectives.fitting.resultpanel module
        
        src.sas.sasgui.perspectives.fitting.simfitpage module
        
        src.sas.sasgui.perspectives.fitting.utils module
      - Module contents
    - src.sas.sasgui.perspectives.invariant package
      - Submodules
        
        src.sas.sasgui.perspectives.invariant.invariant module
        
        src.sas.sasgui.perspectives.invariant.invariant_details module
        
        src.sas.sasgui.perspectives.invariant.invariant_panel module
        
        src.sas.sasgui.perspectives.invariant.invariant_state module
        
        src.sas.sasgui.perspectives.invariant.invariant_widgets module
        
        src.sas.sasgui.perspectives.invariant.report_dialog module
      - Module contents
    - src.sas.sasgui.perspectives.pr package
      - Submodules
        
        src.sas.sasgui.perspectives.pr.explore_dialog module
        
        src.sas.sasgui.perspectives.pr.inversion_panel module
        
        src.sas.sasgui.perspectives.pr.inversion_state module
        
        src.sas.sasgui.perspectives.pr.pr module
        
        src.sas.sasgui.perspectives.pr.pr_thread module
        
        src.sas.sasgui.perspectives.pr.pr_widgets module
      - Module contents
    - src.sas.sasgui.perspectives.simulation package
      - Submodules
        
        src.sas.sasgui.perspectives.simulation.ShapeAdapter module
        
        src.sas.sasgui.perspectives.simulation.ShapeParameters module

okay so picking up right where we left off in the developer docs, here's the rest of the module lineup bestie 🗺️✨

src.sas.sasgui.perspectives.simulation.SimCanvas module
src.sas.sasgui.perspectives.simulation.simulation module
Module contents
Module contents

then we got the src.sas.sasgui.plottools package, which is literally the moment 💅

src.sas.sasgui.plottools package
- Submodules
  - src.sas.sasgui.plottools.BaseInteractor module
  - src.sas.sasgui.plottools.LabelDialog module
  - src.sas.sasgui.plottools.LineModel module
  - src.sas.sasgui.plottools.PlotPanel module
  - src.sas.sasgui.plottools.PropertyDialog module
  - src.sas.sasgui.plottools.RangeDialog module
  - src.sas.sasgui.plottools.SimpleFont module
  - src.sas.sasgui.plottools.SizeDialog module
  - src.sas.sasgui.plottools.TextDialog module
  - src.sas.sasgui.plottools.arrow3d module
  - src.sas.sasgui.plottools.binder module
  - src.sas.sasgui.plottools.canvas module
  - src.sas.sasgui.plottools.config module
  - src.sas.sasgui.plottools.convert_units module
  - src.sas.sasgui.plottools.fitDialog module
  - src.sas.sasgui.plottools.fittings module
  - src.sas.sasgui.plottools.plottable_interactor module
  - src.sas.sasgui.plottools.plottables module
  - src.sas.sasgui.plottools.toolbar module
  - src.sas.sasgui.plottools.transform module

and then we got these four "Module contents" moments, no cap:

Module contents
Module contents
Module contents
Module contents

🔍 Indices and Search 🔍

genindex
modindex
search

👑 AUTHOR 👑

The SasView Project

💖 COPYRIGHT 💖

2017, The SasView Project

peace out bestie, this was SASVIEW(1) version 4.1, dated Oct 30, 2017 💅✨🦋

📦 where this page comes from

debian bookworm: sasview 5.0.5-5 · BSD-3-Clause
debian trixie: sasview 6.0.1-2 · BSD-3-Clause
ubuntu jammy: sasview 5.0.4-1 · BSD-3-Clause
ubuntu noble: sasview 5.0.6-2 · BSD-3-Clause
ubuntu questing: sasview 6.0.1-2
ubuntu resolute: sasview 6.1.2-2 · BSD-3-Clause
ubuntu stonking: sasview 6.2.0-1 · BSD-3-Clause
💖 girlified by deepseek-ai/DeepSeek-V4.1-Flash on 2026-10-18: a language model's rewrite of the original, under its terms

SASVIEW(1)

✨ NAME ✨

🌸 DESCRIPTION 🌸

💖 SASVIEW USER DOCUMENTATION 💖

🎀 Menu Bar 🎀

🍓 File

🦋 Edit

💜 View

🌈 Tools

👑

🔥 Analysis

🧚 Fitting

🎀 Help

💫 Fitting & Other Analyses 💫

⭐ Tools & Utilities ⭐

🫶 Working with SasView 🫶

🍓 Tutorials 🍓

👑 DEVELOPER DOCUMENTATION 👑

📖 Contents 📖

📦 Subpackages

🧪 src.sas.sascalc package

🖼️ src.sas.sasgui package

🔍 Indices and Search 🔍

👑 AUTHOR 👑

💖 COPYRIGHT 💖

🧪 `src.sas.sascalc` package

🖼️ `src.sas.sasgui` package