make_catalog test

dendro_test.py

from astrodendro import Dendrogram, ppv_catalog
from astropy.io import fits
from astropy import units as u

data = fits.getdata('DHT21_Taurus_mom.fits')

dg = Dendrogram.compute(data, verbose=True,
                        min_value=0.01,
                        min_delta = 0.005,
                        min_npix = 20)


# this is arbitrary, except for vaxis
# shouldn't affect speed
metadata = dict(vaxis=2,
                velocity_scale=.125 * u.km / u.s,
                spatial_scale=.1 * u.pc,
                beam_major = 0.1 * u.deg,
                beam_minor = 0.1 * u.deg,
                data_unit = 1 * u.Jy)

cat = ppv_catalog(dg, metadata, verbose=True)
cat.write('taurus.csv', format='ascii')