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Jan Tore Korneliussen

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08 May 2011 B-spline tools Basic toolbox for polynomial B-splines on a uniform grid. OO overloading of common operators. Author: Jan Tore Korneliussen splines, approximation, interpolation 66 1
  • 4.0
4.0 | 1 rating
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29 Apr 2010 json4mat This Matlab toolbox converts JSON formats into (json2mat) and from (mat2json) Matlab structures. Author: Jonas Almeida

Thanks for a very useful toolbox. I found a certain nesting of MATLAB structures and cell arrays which can not be taken for a round-trip to JSON and back. This snippet fails in the json2mat call:

mystruct0_f1.fieldA = 'A';
mystruct0_f1.fieldB = 'B';
mystruct0.field0 = 1;
mystruct0.field1 = mystruct0_f1;

mystruct1_f3.fieldC = 'C';
mystruct1_f3.fieldD = 'D';
mystruct1.field2 = 2;
mystruct1.field3 = mystruct1_f3;

mycarr = {mystruct0, mystruct1};

json2mat(mat2json(mycarr))

The output:

??? Reference to non-existent element of a cell array.

Error in ==> json2mat at 23
M=extract_struct(JJ{1}{1});

Error in ==> json2mat>extract_struct at 60
y.(t{1}{1})=json2mat(t{1}{2});

Error in ==> json2mat at 23
M=extract_struct(JJ{1}{1});

Error in ==> json2mat>extract_cell at 70
tag{i}=json2mat(x(indOC(i,1):indOC(i,2)));

Error in ==> json2mat at 26
M=extract_cell(JJ{1}{1});

Error in ==> jsontest at 13
json2mat(mat2json(mycarr))

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19 Jan 2011 B-spline tools Basic toolbox for polynomial B-splines on a uniform grid. OO overloading of common operators. Author: Jan Tore Korneliussen Murthy, Srinivas

First of all, thanks a lot for the code..In bsplineNdtrans.m, roots of pole are being calculated and poles only between _1 to +1 are being considered. The roots of pole for any particular spline will be same and i feel this as a redundant calculation.
Also i am interested in calculating the partial derivatives(2-D data) i.e wrt x,y,xx,yy,xy,etc. It would be of great help if you can illustrate these calculations with the help of an example
Any help would be greatly appreciated..

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approximation, http, interpolation, json, mtest
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08 May 2011 B-spline tools Basic toolbox for polynomial B-splines on a uniform grid. OO overloading of common operators. Author: Jan Tore Korneliussen splines, approximation, interpolation 66 1
  • 4.0
4.0 | 1 rating
11 Jan 2011 (another) JSON Parser Parses JSON strings into structures and cell arrays. Author: François Glineur json, cells, javascript, parser, cell arrays, data import 51 19
  • 4.83333
4.8 | 6 ratings
19 Nov 2010 Published MATLAB Files MATLAB xUnit Test Framework MATLAB xUnit is a unit test framework for MATLAB code. Author: Steve Eddins mtest, unit test, xunit, test, this is a great work ..., testing 139 127
  • 5.0
5.0 | 40 ratings
08 Apr 2010 urlreadpost - url POST method with binary file uploading A replacement for urlread(url,'post',...) that allows POST to upload binary (file) data. Author: Dan Ellis http, binary, post, url, file, data import 18 1
  • 5.0
5.0 | 1 rating

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