Changes between Version 200 and Version 201 of UvmatHelp
- Timestamp:
- Feb 18, 2016, 4:01:35 PM (9 years ago)
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UvmatHelp
v200 v201 331 331 Fields may be alternatively obtained on a unstructured (grid-less) set of positions. The coordinates are then described by coordinate arrays X(nb_points), Y(nb_points), Z(nb_points). The corresponding field values are then represented as variables U(nb_point),V(nb_point) for each vector component, or alternatively by V(nb_points, j, i), where i, j possibly stand for vector or tensor components. 332 332 333 - '''Thin plate shell (tps) interpolation:''' 333 - '''Thin plate shell (tps) interpolation:''' 334 334 335 335 This is a multi-dimensional generalisation of the spline interpolation/smoothing, an optimum way to interpolate data with minimal curvature of the interpolating function. The result at an interpolation position vector ${\bf r}$ is expressed in the form, (see ThinPlateShell). … … 922 922 923 923 ||'''tag'''||'''dimensions'''||''' content'''|| 924 ||Civ1_X||nb_vec_1|| 924 ||Civ1_X||nb_vec_1||x coordinates|| 925 925 ||Civ1_Y||nb_vec_1||y coordinates|| 926 926 ||Civ1_Z||nb_vec_1||z coordinates (for PIV in volume)|| … … 941 941 ||Civ1_W_tps||(nb_tps_1,nb_subdomain_1)||tps weights for z vel component|| 942 942 943 nb_vec_1= nbre of vectors measured by PIV 944 nb_coord=2 or 3 is the dimension of space 945 nb_bounds=2 represents the lower and upper bound of each coordinate 946 nb_subdomain_1 is the number of subdomqins used for patch 947 nb_tps_1 maximum number of tps centres in subdomains 948 For civ2, all indices _1 are replaced by _2 943 '''dimensions:''' 944 945 * nb_vec_1= nbre of vectors measured by PIV 946 * nb_coord=2 or 3 is the dimension of space 947 * nb_bounds=2 represents the lower and upper bound of each coordinate 948 * nb_subdomain_1 is the number of subdomqins used for patch 949 * nb_tps_1 maximum number of tps centres in subdomains For civ2, all indices _1 are replaced by _2 950 951 949 952 950 953 - '''List of constants, old CIVx conventions:'''