search for: map_color_gradi

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2006 Dec 18
2
surface3d grid from xyz dataframe
Hi List, I am trying to plot a grid with an overlayed height. I have a dataframe with four variables: x,y,gridvalue,height. The dataframe has 2.5mio observations (ie grid points), I assign colors through the gridvalue using map_color_gradient thus producing: x,y,gridvalue,height,gridcol as variables of the dataframe. The grid dimensions are 1253 x 2001 (=2507253 data points). My attempts with surface3d fail, mainly because I cannot produce the matrix required for the height input. elev.to.list{CTFS} fails with: "Error in matr...