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Daniel

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04 Apr 2012 Surface Fitting using gridfit Model 2-d surfaces from scattered data Author: John D'Errico

yes, Hendawi Mohamed I removed points below the edge of my data. My data is roughly bounded by a triangle in X-Y so I used:

gf=gridfit(....);
Z=griddata(... same limits);
N=find(isnan(Z));

gf(N)=NaN;

to removed the complete estimated results. When I plotted my data, the points on the graph corresponded to area were I had data.

04 Apr 2012 fitcircle.m Fits circles to 2D data using nonlinear least squares to minimise geometric error Author: Richard Brown

thanks,

29 Mar 2012 fitcircle.m Fits circles to 2D data using nonlinear least squares to minimise geometric error Author: Richard Brown

29 Mar 2012 fitcircle.m Fits circles to 2D data using nonlinear least squares to minimise geometric error Author: Richard Brown

Great and simple. Any idea if it would be easy to force the center to zero,zero (or anything other coordinate)?

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