SAGA.grid_spline.2: Thin Plate Spline (TIN)
Creates a 'Thin Plate Spline' function for each triangle of a TIN and uses it for subsequent gridding. The TIN is internally created from the scattered data points input. The 'Neighbourhood' option determines the number of points used for the spline generation. 'Immediate neighbourhood' includes the points of the triangle as well as the immediate neighbour points. 'Level 1' adds the neighbours of the immediate neighbourhood and 'level 2' adds the neighbours of 'level 1' neighbours too. A higher neighbourhood degree reduces sharp breaks but also increases the computation time.
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http://tb17.geolabs.fr:8119/ogc-api/processes/SAGA.grid_spline.2.html Last modified: Sat Feb 19 15:43:34 CET 2022