LSSTApplications  10.0-2-g4f67435,11.0.rc2+1,11.0.rc2+12,11.0.rc2+3,11.0.rc2+4,11.0.rc2+5,11.0.rc2+6,11.0.rc2+7,11.0.rc2+8
LSSTDataManagementBasePackage
Classes | Functions | Variables
lsst.afw.math.warper Namespace Reference

Classes

class  WarperConfig
 
class  Warper
 

Functions

def computeWarpedBBox
 

Variables

list __all__ = ["Warper", "WarperConfig"]
 
int _DefaultInterpLength = 10
 
int _DefaultCacheSize = 0
 

Function Documentation

def lsst.afw.math.warper.computeWarpedBBox (   destWcs,
  srcBBox,
  srcWcs 
)
Compute the bounding box of a warped image

The bounding box includes all warped pixels and it may be a bit oversize.

@param destWcs: WCS of warped exposure
@param srcBBox: parent bounding box of unwarped image
@param srcWcs: WCS of unwarped image

@return destBBox: bounding box of warped exposure

Definition at line 30 of file warper.py.

30 
31 def computeWarpedBBox(destWcs, srcBBox, srcWcs):
32  """Compute the bounding box of a warped image
33 
34  The bounding box includes all warped pixels and it may be a bit oversize.
35 
36  @param destWcs: WCS of warped exposure
37  @param srcBBox: parent bounding box of unwarped image
38  @param srcWcs: WCS of unwarped image
39 
40  @return destBBox: bounding box of warped exposure
41  """
42  srcPosBox = afwGeom.Box2D(srcBBox)
43  destPosBox = afwGeom.Box2D()
44  for inX in (srcPosBox.getMinX(), srcPosBox.getMaxX()):
45  for inY in (srcPosBox.getMinY(), srcPosBox.getMaxY()):
46  destPos = destWcs.skyToPixel(srcWcs.pixelToSky(afwGeom.Point2D(inX, inY)))
47  destPosBox.include(destPos)
48  destBBox = afwGeom.Box2I(destPosBox, afwGeom.Box2I.EXPAND)
49  return destBBox
An integer coordinate rectangle.
Definition: Box.h:53
A floating-point coordinate rectangle geometry.
Definition: Box.h:271

Variable Documentation

list lsst.afw.math.warper.__all__ = ["Warper", "WarperConfig"]

Definition at line 28 of file warper.py.

int lsst.afw.math.warper._DefaultCacheSize = 0

Definition at line 51 of file warper.py.

int lsst.afw.math.warper._DefaultInterpLength = 10

Definition at line 50 of file warper.py.