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Manpage of warpfit
warpfit
Section: User Commands (1)
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NAME
warpfit  Non linear Least Squares Fitting for Parablic Panels.
PERSON RESPONSIBLE
mchw
CATEGORIES
misc, utility
DESCRIPTION
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 yaxis runs along the panel centerline
The xaxis is perpendicular to the centerline
The zaxis is the depth of the machining measured from the (x,y) plane.
PARAMETERS
 in

Input ascii file with up to 9 columns of data. No default.
 npts

Select the first ``npts'' from the input file.
Default reads the whole file or 2000 which is the maximum allowed.
 par

Initial estimates for parameters; rotations(degrees) and offsets(inches).
Exactly 6 numbers are needed here: xrot,yrot,z0,warp,angle,y0
 nfit

Number of paramters to fit. Remaining parameters are fixed.
E.g. nfit=3 would only fit xrot,yrot,z0, leaving warp,angle,y0 fixed.
Default: nfit=3
 swapxy

Swap x and y axes. Y or N, Default=No.
 log

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.
Index
 NAME

 PERSON RESPONSIBLE

 CATEGORIES

 DESCRIPTION

 PARAMETERS

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Time: 18:35:39 GMT, July 05, 2011