downloadSPARCdata

A module for handling the downloading of SPARC data in notebook 09_Widget_SPARC_Galaxies.ipynb.

ToC: Functions

downloadsparc()	Downloads rotation curve data for Newtonian Mass Models (Rotmod_LTG.zip) from the SPARC website: http://astroweb.cwru.edu/SPARC/.
unzipfiles()	Extracts all files of the zipped rotation curve data (Rotmod_LTG.zip), downloaded from the SPARC website: http://astroweb.cwru.edu/SPARC/.
on_button_clicked_YES(_)	Button labeled as 'YES' to download and unzip SPARC data.

ToC: Attributes

buttonYES	Button, WITHOUT display box, for downloading and unzipping SPARC data.
out	A handler for widget output.
displaybuttons	Visible button for downloading and unzipping SPARC data.
options	A list of galaxies to choose from.
form_item_layout	A layout to be used by galaxyoptions for the dropdown.
dropdownmenu	A dropdown menu for selecting a galaxy.
galaxyoptions	A displayable box, including a dropdown menu, for selecting a galaxy.

Members

downloadSPARCdata.downloadsparc()

Downloads rotation curve data for Newtonian Mass Models (Rotmod_LTG.zip) from the SPARC website: http://astroweb.cwru.edu/SPARC/.

Parameters:

None

Returns:

None

Example:

>>> downloadsparc()
Download URL: http://astroweb.cwru.edu/SPARC/Rotmod_LTG.zip.
Downloaded zip file successfully.

downloadSPARCdata.unzipfiles()

Extracts all files of the zipped rotation curve data (Rotmod_LTG.zip), downloaded from the SPARC website: http://astroweb.cwru.edu/SPARC/.

Parameters:

None

Returns:

None

Example:

>>> downloadsparc()
Download URL: http://astroweb.cwru.edu/SPARC/Rotmod_LTG.zip.
Downloaded zip file successfully.
>>> unzipfiles()
Data files unzipped successfully.
SPARC data file location:
'/mnt/c/Users/you/Documents/GitHub/galactic-spin-W1/binder/data/sparc/'.

downloadSPARCdata.buttonYES

Button, WITHOUT display box, for downloading and unzipping SPARC data.

Type:

ipywidgets.widgets.widget_button.Button

downloadSPARCdata.out

A handler for widget output.

Type:

ipywidgets.widgets.widget_output.Output

downloadSPARCdata.on_button_clicked_YES(_)

Button labeled as ‘YES’ to download and unzip SPARC data.

Parameters:

None

Returns:

None

downloadSPARCdata.displaybuttons

Visible button for downloading and unzipping SPARC data.

Version of buttonYES that can be displayed without issue.

Type:

ipywidgets.widgets.widget_box.VBox

downloadSPARCdata.options = []

A list of galaxies to choose from.

Type:

list

See also

This list is generated based on the files present in the ./data/sparc directory, which is populated by the downloadsparc and unzipfiles functions.

downloadSPARCdata.form_item_layout

A layout to be used by galaxyoptions for the dropdown.

Type:

ipywidgets.widgets.widget_layout.Layout

downloadSPARCdata.dropdownmenu

A dropdown menu for selecting a galaxy.

Type:

ipywidgets.widgets.widget_selection.Dropdown

downloadSPARCdata.galaxyoptions

A displayable box, including a dropdown menu, for selecting a galaxy.

Type:

ipywidgets.widgets.widget_box.Box