LSST Applications 27.0.0,g0265f82a02+469cd937ee,g02d81e74bb+21ad69e7e1,g1470d8bcf6+cbe83ee85a,g2079a07aa2+e67c6346a6,g212a7c68fe+04a9158687,g2305ad1205+94392ce272,g295015adf3+81dd352a9d,g2bbee38e9b+469cd937ee,g337abbeb29+469cd937ee,g3939d97d7f+72a9f7b576,g487adcacf7+71499e7cba,g50ff169b8f+5929b3527e,g52b1c1532d+a6fc98d2e7,g591dd9f2cf+df404f777f,g5a732f18d5+be83d3ecdb,g64a986408d+21ad69e7e1,g858d7b2824+21ad69e7e1,g8a8a8dda67+a6fc98d2e7,g99cad8db69+f62e5b0af5,g9ddcbc5298+d4bad12328,ga1e77700b3+9c366c4306,ga8c6da7877+71e4819109,gb0e22166c9+25ba2f69a1,gb6a65358fc+469cd937ee,gbb8dafda3b+69d3c0e320,gc07e1c2157+a98bf949bb,gc120e1dc64+615ec43309,gc28159a63d+469cd937ee,gcf0d15dbbd+72a9f7b576,gdaeeff99f8+a38ce5ea23,ge6526c86ff+3a7c1ac5f1,ge79ae78c31+469cd937ee,gee10cc3b42+a6fc98d2e7,gf1cff7945b+21ad69e7e1,gfbcc870c63+9a11dc8c8f
LSST Data Management Base Package
|
Functions | |
noDistort (src) | |
linearXDistort (src, frac=.001) | |
quadraticDistortX (src, frac=1e-6) | |
cubicDistortX (src, frac=1e-9) | |
manyTermX (src, frac=1e-9) | |
linearYDistort (src, frac=.001) | |
quadraticDistortY (src, frac=1e-6) | |
cubicDistortY (src, frac=1e-9) | |
manyTermY (src, frac=1e-9) | |
crossTerms1 (src, frac=1e-11) | |
crossTerms2 (src, frac=1e-11) | |
crossTerms3 (src, frac=1e-9) | |
quadraticDistort (src, frac=1e-6) | |
T2DistortX (src, frac=1e-6) | |
distortList (srcList, function) | |
lsst.meas.astrom.sip.genDistortedImage.crossTerms1 | ( | src, | |
frac = 1e-11 ) |
Distort image Y by X, leaving X unchanged, 'x**3 - 2*x**2'. Parameters ---------- src : `lsst.afw.table.SourceRecord` A Source object frac : `float` How much to change Y by Returns ------- out : `lsst.afw.table.SourceRecord` A deep copy of src, with the value of Y changed
Definition at line 255 of file genDistortedImage.py.
lsst.meas.astrom.sip.genDistortedImage.crossTerms2 | ( | src, | |
frac = 1e-11 ) |
Distort image X by Y, leaving Y unchanged, 'y**3 - 2*y**2 + 4*y - 9'. Parameters ---------- src : `lsst.afw.table.SourceRecord` A Source object frac : `float` How much to change X by Returns ------- out : `lsst.afw.table.SourceRecord` A deep copy of src, with the value of X changed
Definition at line 280 of file genDistortedImage.py.
lsst.meas.astrom.sip.genDistortedImage.crossTerms3 | ( | src, | |
frac = 1e-9 ) |
Distort image X and Y , 'dx=x**3 - 2*x**2 + 4*x - 9', 'dy=y**3 - 2*y**2 + 4*y - 9'. Parameters ---------- src : `lsst.afw.table.SourceRecord` A Source object frac : `float` How much to change X and Y by Returns ------- out : `lsst.afw.table.SourceRecord` A deep copy of src, with the value of X and Y changed
Definition at line 305 of file genDistortedImage.py.
lsst.meas.astrom.sip.genDistortedImage.cubicDistortX | ( | src, | |
frac = 1e-9 ) |
Distort image by terms with power <=2 i.e y, y^2, x, xy, x^2 Parameters ---------- src : `lsst.afw.table.SourceRecord` A Source object frac : `float` How much to change X by Returns ------- out : `lsst.afw.table.SourceRecord` A deep copy of src, with the value of x changed
Definition at line 101 of file genDistortedImage.py.
lsst.meas.astrom.sip.genDistortedImage.cubicDistortY | ( | src, | |
frac = 1e-9 ) |
Distort image by terms with power <=2 i.e y, y^2, x, xy, x^2 Parameters ---------- src : `lsst.afw.table.SourceRecord` A Source object frac : `float` How much to change Y by Returns ------- out : `lsst.afw.table.SourceRecord` A deep copy of src, with the value of Y changed
Definition at line 203 of file genDistortedImage.py.
lsst.meas.astrom.sip.genDistortedImage.distortList | ( | srcList, | |
function ) |
Create a copy of srcList, and apply function to distort the values of x and y. Parameters ---------- srcList : `list` of `lsst.afw.table.SourceRecord` Input list of source to distort. function : `callable` A function that does a deep copy of a single Source Returns ------- out : `lsst.afw.table.SourceCatalog` Output catalog with distorted positions.
Definition at line 384 of file genDistortedImage.py.
lsst.meas.astrom.sip.genDistortedImage.linearXDistort | ( | src, | |
frac = .001 ) |
Increase the x value in a Source object by frac. E.g src.x = 1000 --> 1001 if frac=.001 Parameters ---------- src : `lsst.afw.table.SourceRecord` A Source object frac : `float` How much to change X by Returns ------- out : `lsst.afw.table.SourceRecord` A deep copy of src, with the value of x changed
Definition at line 52 of file genDistortedImage.py.
lsst.meas.astrom.sip.genDistortedImage.linearYDistort | ( | src, | |
frac = .001 ) |
Increase the y value in a Source object by frac. E.g src.x = 1000 --> 1001 if frac=.001 Parameters ---------- src : `lsst.afw.table.SourceRecord` A Source object frac : `float` How much to change Y by Returns ------- out : `lsst.afw.table.SourceRecord` A deep copy of src, with the value of Y changed
Definition at line 154 of file genDistortedImage.py.
lsst.meas.astrom.sip.genDistortedImage.manyTermX | ( | src, | |
frac = 1e-9 ) |
Distort image by multiple powers of x, 'x**3 - 2*x**2 + 4*x - 9'. Parameters ---------- src : `lsst.afw.table.SourceRecord` A Source object frac : `float` How much to change X by Returns ------- out : `lsst.afw.table.SourceRecord` A deep copy of src, with the value of x changed
Definition at line 128 of file genDistortedImage.py.
lsst.meas.astrom.sip.genDistortedImage.manyTermY | ( | src, | |
frac = 1e-9 ) |
Distort image by multiple terms of Y, 'y**3 - 2*y**2 + 4*y - 9'. Parameters ---------- src : `lsst.afw.table.SourceRecord` A Source object frac : `float` How much to change Y by Returns ------- out : `lsst.afw.table.SourceRecord` A deep copy of src, with the value of Y changed
Definition at line 230 of file genDistortedImage.py.
lsst.meas.astrom.sip.genDistortedImage.noDistort | ( | src | ) |
Do no distortion. Used for sanity checking Parameters ---------- src : `lsst.afw.table.SourceRecord` Input record Returns ------- out : `lsst.afw.table.SourceRecord` Copy of input record.
Definition at line 34 of file genDistortedImage.py.
lsst.meas.astrom.sip.genDistortedImage.quadraticDistort | ( | src, | |
frac = 1e-6 ) |
Distort image by terms with power <=2 i.e y, y^2, x, xy, x^2 Parameters ---------- src : `lsst.afw.table.SourceRecord` A Source object frac : `float` How much to change X Returns ------- out : `lsst.afw.table.SourceRecord` A deep copy of src, with the value of X
Definition at line 332 of file genDistortedImage.py.
lsst.meas.astrom.sip.genDistortedImage.quadraticDistortX | ( | src, | |
frac = 1e-6 ) |
Distort image by terms with power <=2 i.e y, y^2, x, xy, x^2 Parameters ---------- src : `lsst.afw.table.SourceRecord` A Source object frac : `float` How much to change X by Returns ------- out : `lsst.afw.table.SourceRecord` A deep copy of src, with the value of x changed
Definition at line 74 of file genDistortedImage.py.
lsst.meas.astrom.sip.genDistortedImage.quadraticDistortY | ( | src, | |
frac = 1e-6 ) |
Distort image by terms with power <=2 i.e y, y^2, x, xy, x^2 Parameters ---------- src : `lsst.afw.table.SourceRecord` A Source object frac : `float` How much to change Y by Returns ------- out : `lsst.afw.table.SourceRecord` A deep copy of src, with the value of Y changed
Definition at line 176 of file genDistortedImage.py.
lsst.meas.astrom.sip.genDistortedImage.T2DistortX | ( | src, | |
frac = 1e-6 ) |
Distort image by a 2nd order Cheby polynomial Parameters ---------- src : `lsst.afw.table.SourceRecord` A Source object frac : `float` How much to change X Returns ------- out : `lsst.afw.table.SourceRecord` A deep copy of src, with the value of X
Definition at line 361 of file genDistortedImage.py.