image (class)

class image(log, ra, dec, downloadDirectory='./', filename='sdss_stamp.jpeg', settings=False, grid=True, label=False, photocat=False, speccat=False, invertColors=False, arcminWidth=5, pixelWidth=500)

Bases: object

The worker class for the image module

Key Arguments

• log – logger

• settings – the settings dictionary

• ra – right-ascension of the sky-location

• dec – declination of the sky-location

• downloadDirectory – directory to download the image stamp to. Default ./

• filename – path to download the image stamp to. Default “sdss_stamp.jpeg”

• grid – include grid and scale in stamp. Default True

• label – label. Default False

• photocat – mark photometrical catalogued sources. Default False

• speccat – mark spectrscopical catalogued objects. Default False

  • invertColors – invert the image stamp colors. Default False

  • arcminWidth – the width of the image stamp in arcmin. Default 5

  • pixelWidth – the width of the image stamp in pixels. Default 500

Return

• covered – the coverage result. True | False | 999 (i.e. not sure)

Usage

Here’s an example where we turn on all options before we download the image:

from sloancone import image
imagestamp = image(
    log=log,
    settings=settings,
    ra="179.689293428354",
    dec="-0.454379056007667",
    downloadDirectory="/tmp",
    filename="sdss_stamp.jpeg",
    grid=True,
    label=True,
    photocat=True,
    speccat=True,
    invertColors=True,
    arcminWidth=5,
    pixelWidth=500
)
# covered = True | False | 999 (i.e. not sure)
covered = imagestamp.get()

This produces a stamp at /tmp/sdss_stamp.jpeg that looks like this:

:width: 800px
:alt: SDSS image stamp with all options turned on

Methods

get()

download the image

get()

download the image