>On Fri, Feb 23, 2001 at 08:47:35AM +0100, Antoon van Heel wrote: >> I have a problem visualising a data set. >> The data is stored in file in the format: >> x y T. >> When I visualise it I get a picture of scattered points. >> How can I avoid getting scattered points only, and obtain a >> picture which is colored throughout (color interpolated in between the data >> points)? > > Might be missing something really obvious, but can't you just do >that by using Autocolour, RubberSheet and all that? I have similar data >sets, and quite like rubbersheet. > > hth, > José >--
To get interpolation in DX, you must provide interpolation "pathways" between sample points. No pathways == scattered data, which is what you have. Pathways are called "connections" in DX. Ton has no connections, Jose does. Ton is providing a set of scattered points which could be trivially, but not necessarily correctly "connected" by a line from point 0, to point 1, ..., to point n-1. Or he could create a grid and put his data onto it with Regrid or Connect. If his intention (and data) are to display the x,y data as a grid because the x,y pairs inherently form a grid, then he needs to tell DX about this during the import/data prompter stage. A grid of x X y values, assuming the values are in y-varies-faster order is trivially created by declaring the number of values in X and in Y to the prompter, with an origin and delta for each axis. If the x,y values in the data file are in fact "regular", you can ignore them and let DX's automatically created grid reproduce them. The assumption is that the T (data) will line up accordingly because it too is mapped to the input x,y pairs in the correct order. There are examples in the Users Guide of objects similar to this. Chris Pelkie Vice President/Scientific Visualization Producer Conceptual Reality Presentations, Inc. 30 West Meadow Drive Ithaca, NY 14850 [EMAIL PROTECTED]
