ImageD11.blobcorrector | index /sware/exp/fable/standalone/redhate4-a64/lib/python2.5/site-packages/ImageD11/blobcorrector.py

`Defines a class for correcting peak positions for spatial distortion
via a fit2d spline file
To think about doing - valid regions? What if someone uses a 1K spline
file for a 2K image etc?`

Modules
`` |  |
ImageD11.bisplev | logging | math | numpy.oldnumeric

Classes
`` |  | correctorclass perfect
class correctorclass
`` | `Applies a spatial distortion to a peak position using a fit2d splinefile`
| Methods defined here: __init__(self, argsplinefile, orientation='edf') `Argument is the name of a fit2d spline file` correct(self, xin, yin) `Transform x,y in raw image coordinates into x,y of an idealised image. Returns a tuple (x,y), expects a pair of floats as arguments` distort(self, xin, yin) `Distort a pair of points xnew, ynew to find where they would be in a raw image Iterative algorithm...` make_pixel_lut(self, dims) `Generate an x and y image which maps the array indices into floating point array indices (to be corrected for pixel size later) returns FIXME - check they are the right way around add some sort of known splinefile testcase` make_pos_lut(self, dims) `Generate a look up table of pixel positions in microns # Cache the value in case of multiple calls returns ...` readfit2dspline(self, name) `Reads a fit2d spline file into a scipy/fitpack tuple, tck A fairly long and dull routine...` test(self, xin, yin) `Checks that the correct and distort functions are indeed inversely related to each other`
class perfect(correctorclass)
`` | `To use on previously corrected when there is no splinefile Allows pixel size etc to be set`
| Methods defined here: __init__(self) correct(self, xin, yin) `Do nothing - just return the same values` Data and other attributes defined here: splinefile = 'NO_CORRECTION_APPLIED' xsize = 'UNKNOWN' ysize = 'UNKNOWN' Methods inherited from correctorclass: distort(self, xin, yin) `Distort a pair of points xnew, ynew to find where they would be in a raw image Iterative algorithm...` make_pixel_lut(self, dims) `Generate an x and y image which maps the array indices into floating point array indices (to be corrected for pixel size later) returns FIXME - check they are the right way around add some sort of known splinefile testcase` make_pos_lut(self, dims) `Generate a look up table of pixel positions in microns # Cache the value in case of multiple calls returns ...` readfit2dspline(self, name) `Reads a fit2d spline file into a scipy/fitpack tuple, tck A fairly long and dull routine...` test(self, xin, yin) `Checks that the correct and distort functions are indeed inversely related to each other`

Functions
`` |  | readfit2dfloats(fp, nfl) `Interprets a 5E14.7 formatted fortran line`