LSST Applications  21.0.0+04719a4bac,21.0.0-1-ga51b5d4+f5e6047307,21.0.0-11-g2b59f77+a9c1acf22d,21.0.0-11-ga42c5b2+86977b0b17,21.0.0-12-gf4ce030+76814010d2,21.0.0-13-g1721dae+760e7a6536,21.0.0-13-g3a573fe+768d78a30a,21.0.0-15-g5a7caf0+f21cbc5713,21.0.0-16-g0fb55c1+b60e2d390c,21.0.0-19-g4cded4ca+71a93a33c0,21.0.0-2-g103fe59+bb20972958,21.0.0-2-g45278ab+04719a4bac,21.0.0-2-g5242d73+3ad5d60fb1,21.0.0-2-g7f82c8f+8babb168e8,21.0.0-2-g8f08a60+06509c8b61,21.0.0-2-g8faa9b5+616205b9df,21.0.0-2-ga326454+8babb168e8,21.0.0-2-gde069b7+5e4aea9c2f,21.0.0-2-gecfae73+1d3a86e577,21.0.0-2-gfc62afb+3ad5d60fb1,21.0.0-25-g1d57be3cd+e73869a214,21.0.0-3-g357aad2+ed88757d29,21.0.0-3-g4a4ce7f+3ad5d60fb1,21.0.0-3-g4be5c26+3ad5d60fb1,21.0.0-3-g65f322c+e0b24896a3,21.0.0-3-g7d9da8d+616205b9df,21.0.0-3-ge02ed75+a9c1acf22d,21.0.0-4-g591bb35+a9c1acf22d,21.0.0-4-g65b4814+b60e2d390c,21.0.0-4-gccdca77+0de219a2bc,21.0.0-4-ge8a399c+6c55c39e83,21.0.0-5-gd00fb1e+05fce91b99,21.0.0-6-gc675373+3ad5d60fb1,21.0.0-64-g1122c245+4fb2b8f86e,21.0.0-7-g04766d7+cd19d05db2,21.0.0-7-gdf92d54+04719a4bac,21.0.0-8-g5674e7b+d1bd76f71f,master-gac4afde19b+a9c1acf22d,w.2021.13
LSST Data Management Base Package
Classes | Functions | Variables
lsst.meas.base.forcedPhotCcd Namespace Reference

Classes

class  PerTractCcdDataIdContainer
 
class  ForcedPhotCcdConnections
 
class  for
 
class  documentation
 

Functions

def imageOverlapsTract (tract, imageWcs, imageBox)
 

Variables

 applyMosaicResults = None
 

Function Documentation

◆ imageOverlapsTract()

def lsst.meas.base.forcedPhotCcd.imageOverlapsTract (   tract,
  imageWcs,
  imageBox 
)
Return whether the given bounding box overlaps the tract given a WCS.

Parameters
----------
tract : `lsst.skymap.TractInfo`
    TractInfo specifying a tract.
imageWcs : `lsst.afw.geom.SkyWcs`
    World coordinate system for the image.
imageBox : `lsst.geom.Box2I`
    Bounding box for the image.

Returns
-------
overlap : `bool`
    `True` if the bounding box overlaps the tract; `False` otherwise.

Definition at line 117 of file forcedPhotCcd.py.

117 def imageOverlapsTract(tract, imageWcs, imageBox):
118  """Return whether the given bounding box overlaps the tract given a WCS.
119 
120  Parameters
121  ----------
122  tract : `lsst.skymap.TractInfo`
123  TractInfo specifying a tract.
124  imageWcs : `lsst.afw.geom.SkyWcs`
125  World coordinate system for the image.
126  imageBox : `lsst.geom.Box2I`
127  Bounding box for the image.
128 
129  Returns
130  -------
131  overlap : `bool`
132  `True` if the bounding box overlaps the tract; `False` otherwise.
133  """
134  tractPoly = tract.getOuterSkyPolygon()
135 
136  imagePixelCorners = lsst.geom.Box2D(imageBox).getCorners()
137  try:
138  imageSkyCorners = imageWcs.pixelToSky(imagePixelCorners)
139  except lsst.pex.exceptions.LsstCppException as e:
140  # Protecting ourselves from awful Wcs solutions in input images
141  if (not isinstance(e.message, lsst.pex.exceptions.DomainErrorException)
142  and not isinstance(e.message, lsst.pex.exceptions.RuntimeErrorException)):
143  raise
144  return False
145 
146  imagePoly = lsst.sphgeom.ConvexPolygon.convexHull([coord.getVector() for coord in imageSkyCorners])
147  return tractPoly.intersects(imagePoly) # "intersects" also covers "contains" or "is contained by"
148 
149 
A floating-point coordinate rectangle geometry.
Definition: Box.h:413
static ConvexPolygon convexHull(std::vector< UnitVector3d > const &points)
convexHull returns the convex hull of the given set of points if it exists and throws an exception ot...
Definition: ConvexPolygon.h:65
def imageOverlapsTract(tract, imageWcs, imageBox)

Variable Documentation

◆ applyMosaicResults

lsst.meas.base.forcedPhotCcd.applyMosaicResults = None

Definition at line 48 of file forcedPhotCcd.py.