Manpage of warpfit
Section: User Commands (1)
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warpfit - Non linear Least Squares Fitting for Parablic Panels.
WARPFIT determines the RMS deviation for a paraboloid
with a focal length of 100.8 inches for a maximum of 600 data points.
The rotation angle is set to zero. Data should be free format:
x(1) y(1) z(1)
x(2) y(2) z(2)
. . .
x(i) y(i) z(i)
The y-axis runs along the panel centerline
The x-axis is perpendicular to the centerline
The z-axis is the depth of the machining measured from the (x,y) plane.
Input ascii file with up to 9 columns of data. No default.
Select the first ``npts'' from the input file.
Default reads the whole file or 2000 which is the maximum allowed.
Initial estimates for parameters; rotations(degrees) and offsets(inches).
Exactly 6 numbers are needed here: xrot,yrot,z0,warp,angle,y0
Number of paramters to fit. Remaining parameters are fixed.
E.g. nfit=3 would only fit xrot,yrot,z0, leaving warp,angle,y0 fixed.
Swap x and y axes. Y or N, Default=No.
Output logfile. It will contain the results, a histogram
with residuals and all selected measurements, the fit, and residuals.
Default: print results and histogram only to terminal.
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Time: 18:35:39 GMT, July 05, 2011