NumCosmoMathSphereMap

If smap is not NULL, decreases the reference count of smap. When its reference count drops to 0, the object is finalized (i.e. its memory is freed). Set smap to NULL.

Adds a Gaussian noise with $\sigma=$ sd and zero mean to each pixel.

Adds s to the signal at the pixel corresponding to theta and phi.

Adds s to the signal at the pixel corresponding to vec.

Compute map pixels from current $a_{\ell{}m}$.

Converts spherical coordinates to a pixel index in NESTED ordering.

Converts spherical coordinates to a pixel index in RING ordering.

Computes the two-point correlation function $C(\theta)$ from the precomputed $C_\ell$.

Clear the pixels of smap, i.e. set all pixels to zero.

Computes the cross-spectrum between two maps: $$C_\ell^\mathrm{cross} = \frac{1}{2\ell+1} \sum_{m=-\ell}^\ell \mathrm{Re}(a_{lm}^{(1)} \bar{a}_{lm}^{(2)})$$.

Decreases the reference count of smap. When its reference count drops to 0, the object is finalized (i.e. its memory is freed).

Gets the value of $C_{\ell}$ previously calculated by ncm_sphere_map_prepare_alm().

Gets the value of $a_{lm}$ previously calculated by ncm_sphere_map_prepare_alm().

Get the number of pixels of the north cap of smap.

Gets the coordinate system of smap.

Gets the number of iterations used in the spherical harmonic transform.

Get the number of pixels of the middle of smap. That is the number of pixels of the middle rings.

Gets the number of pixels of smap.

Get the number of rings of smap.

Get the number of rings of the north cap of smap.

Get the number of rings of the middle of smap.

Get the nside parameter of smap.

Gets the pixel ordering of smap.

Gets the value of pixel index by i.

Get the first pixel index of the ring r_i of smap.

Get the number of pixels of the ring r_i of smap.

Loads a NcmSphereMap from a fits file.

Loads a NcmSphereMap from a fits catalog.

Converts a pixel index from NESTED to RING ordering.

Converts a pixel index from NESTED to spherical coordinates and returns the angles theta and phi.

Converts a pixel index from RING to spherical coordinates and returns the angles theta and phi.

Converts a pixel index from NESTED to a unit vector.

Converts a pixel index from RING to a unit vector.

Calculates the $a_{\ell{}m}$ from the map smap, using $\ell_\mathrm{max}$ set by ncm_sphere_map_set_lmax(). If $\ell_\mathrm{max} = 0$ nothing is done.

Increases the reference count of smap.

Converts a pixel index from RING to NESTED ordering.

Saves a NcmSphereMap to a fits file.

Set map $C_l$s.

Sets the value of $a_{lm}$.

Sets the coordinate system of smap.

Sets the number of iterations to use in the spherical harmonic transform. Iterations improve the accuracy of the transform for undersampled maps (when lmax < 3 * nside). iter=0 uses only the direct transform, iter=3 (recommended) performs 3 refinement iterations.

Prepare the object to calculate $a_{\ell{}m}$ and/or $C_\ell$, up to $\ell=$lmax.

Set map pixels to map using current ordering.

Sets the nside parameter of smap.

Sets the pixel ordering of smap.

Updates the values of $C_\ell$ based on the current $a_{lm}$.

Converts a unit vector to a pixel index in NESTED ordering.

Converts a unit vector to a pixel index in RING ordering.