healpy.visufunc.gnomview¶
- healpy.visufunc.gnomview(map=None, fig=None, rot=None, coord=None, unit='', xsize=200, ysize=None, reso=1.5, title='Gnomonic view', nest=False, remove_dip=False, remove_mono=False, gal_cut=0, min=None, max=None, flip='astro', format='%.3g', cbar=True, cmap=None, badcolor='gray', bgcolor='white', norm=None, hold=False, sub=None, reuse_axes=False, margins=None, notext=False, return_projected_map=False, no_plot=False, alpha=None)¶
Plot a healpix map (given as an array) in Gnomonic projection.
- Parameters:
- maparray-like
The map to project, supports masked maps, see the ma function. If None, use a blank map, useful for overplotting.
- figNone or int, optional
A figure number. Default: None= create a new figure
- rotscalar or sequence, optional
Describe the rotation to apply. In the form (lon, lat, psi) (unit: degrees) : the point at longitude lon and latitude lat will be at the center. An additional rotation of angle psi around this direction is applied.
- coordsequence of character, optional
Either one of ‘G’, ‘E’ or ‘C’ (where ‘E’ stands for the Ecliptic, ‘G’ for the Galactic, and ‘C’ for the Celestial or equatorial) to describe the coordinate system of the map, or a sequence of 2 of these to rotate the map from the first to the second coordinate system.
- unitstr, optional
A text describing the unit of the data. Default: ‘’
- xsizeint, optional
The size of the image. Default: 200
- ysizeNone or int, optional
The size of the image. Default: None= xsize
- resofloat, optional
Resolution (in arcmin). Default: 1.5 arcmin
- titlestr, optional
The title of the plot. Default: ‘Gnomonic view’
- nestbool, optional
If True, ordering scheme is NESTED. Default: False (RING)
- minfloat, scalar, optional
The minimum range value
- maxfloat, scalar, optional
The maximum range value
- flip{‘astro’, ‘geo’}, optional
Defines the convention of projection : ‘astro’ (default, east towards left, west towards right) or ‘geo’ (east towards roght, west towards left)
- remove_dipbool, optional
If
True
, remove the dipole+monopole- remove_monobool, optional
If
True
, remove the monopole- gal_cutfloat, scalar, optional
Symmetric galactic cut for the dipole/monopole fit. Removes points in latitude range [-gal_cut, +gal_cut]
- formatstr, optional
The format of the scale label. Default: ‘%g’
- cmapa color map
The colormap to use (see matplotlib.cm)
- badcolorstr
Color to use to plot bad values
- bgcolorstr
Color to use for background
- holdbool, optional
If True, replace the current Axes by a GnomonicAxes. use this if you want to have multiple maps on the same figure. Default: False
- subint or sequence, optional
Use only a zone of the current figure (same syntax as subplot). Default: None
- reuse_axesbool, optional
If True, reuse the current Axes (should be a GnomonicAxes). This is useful if you want to overplot with a partially transparent colormap, such as for plotting a line integral convolution. Default: False
- marginsNone or sequence, optional
Either None, or a sequence (left,bottom,right,top) giving the margins on left,bottom,right and top of the axes. Values are relative to figure (0-1). Default: None
- notext: bool, optional
If True: do not add resolution info text. Default=False
- return_projected_mapbool, optional
if True returns the projected map in a 2d numpy array
- no_plotbool, optional
if True no figure will be created
- alphafloat, array-like or None
An array containing the alpha channel, supports masked maps, see the ma function. If None, no transparency will be applied. See an example usage of the alpha channel transparency in the documentation under “Other tutorials”