Dodecahedron

class lsst.skymap.detail.Dodecahedron(withFacesOnPoles=False)

Bases: object

A dodecahedron with positions of faces and associated vertices.

Parameters

withFacesOnPolesbool

If True center a face on each pole, else put a vertex on each pole.

Methods Summary

getFaceCtr(ind)	Return the center of the specified face.
getFaceCtrList()	Return a list of face centers.
getFaceInd(vec)	Return the index of the face containing the cartesian vector.
getVertices(ind)	Return the vertices for a given face.
getWithFacesOnPoles()

Methods Documentation

getFaceCtr(ind)

Return the center of the specified face.

Parameters

indint

Index of the face to look up.

Returns

resultsnumpy.ndarray

Face center as a unit vector.

getFaceCtrList()

Return a list of face centers.

Returns

resultslist of numpy.ndarray

A list of face centers (in index order); each a unit vector.

getFaceInd(vec)

Return the index of the face containing the cartesian vector.

Parameters

vecnumpy.ndarray

Cartesian vector (length is ignored).

Returns

resultsnumpy.ndarray

Index of face containing vec.

getVertices(ind)

Return the vertices for a given face.

Parameters

indint

Face index.

Returns

sortedVertexListlist of numpy.ndarray

A list of vertices, each a unit vector.

getWithFacesOnPoles()