On Tue, 19 Nov 2002, Jens Fernandez-Vega wrote:
I suggest you install GMT (Generic Mapping Tools). I use this in conjunction with OpenDX quite usefully. GMT uses netCDF grids as binary surface models. the command xyz2grd <file.xyz> <assorted parameters> will build a surface model representing your data, there are other commands to do this as well (including surface, etc) to give control over various aspects of the model. the command echo "$X $Y" | grdtrack <parameters> or cat <file of x y values> | grdtrack <parameters> will return the interpolated value(s) at each X y location from the grid. I'm using GMT to derive grids which are then used in OpenDX. GMT is also Open Source. > I managed to create a Rubbersheet with the dx data, autocolor and find the > gradient of the surface. But now I would like to input the X and Y > coordinates of some points and find out the corresponding Z value. Is this > possible? > > If somebody could point me to the past emails that could help or give some > hints or suggestions, it would be great. Not a OpenDX based solution, but it will easily do what you want. Cheers Brent Wood
