Ignore:
Timestamp:
Jan 3, 2012, 12:58:52 AM (9 years ago)
Author:
sommeria
Message:

civ updated with new functions for opening files, consistently with uvmat
Bugs to be expected (use previous version then)

File:
1 edited

Legend:

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  • trunk/src/tps_eval_dxy.m

    r247 r356  
    1 % 'DXYMatrix': calculate the matrix of thin-plate shell derivatives
    2 %
    3 % function DMXY = DXYMatrix(dsites,ctrs)
     1%'tps_eval_dxy': calculate the derivatives of thin plate spline (tps) interpolation at a set of points (limited to the 2D case)
     2%------------------------------------------------------------------------
     3% function [DMX,DMY] = tps_eval_dxy(dsites,ctrs)
     4%------------------------------------------------------------------------
     5% OUTPUT:
     6%     DMX: Mx(N+3) matrix representing the contributions to the X
     7%     derivatives at the M sites from unit sources located at each of the N
     8%     centers, + 3 columns representing the contribution of the linear gradient part.
     9%     DMY: idem for Y derivatives
    410%
    511% INPUT:
    6 %   dsites: M x s matrix of interpolation site coordinates (s=space dimension)
     12%   dsites: M x s matrix of interpolation site coordinates (s=space dimension=2 here)
    713%   ctrs: N x s matrix of centre coordinates (initial data)
    814%
    9 % OUTPUT:
    10 %     DMXY: Mx(N+1+s)xs matrix corresponding to M interpolation sites and
    11 %            N centres, with s=space dimension, DMXY(:,:,k) gives the derivatives
    12 %            along dimension k (=x, y,z) after multiplication by the N+1+s tps sources.
     15% related functions:
     16% tps_coeff, tps_eval
     17
    1318  function [DMX,DMY] = tps_eval_dxy(dsites,ctrs)
    1419  %%  matrix declarations
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