evs@romeo.cs.duke.edu (Ed Simpson) (06/23/89)
Does anyone have any information on how to perform interpolation of an independent variable on a surface in 3-space? Here is my specific problem. I have a set of contours that describes the surface of a heart in 3 dimensions. Each contour consists of a closed polyline with 128 segments. I also have a small set of electrode locations (specified in x,y,z coordinates) that are located on the contours. For example, for some applications there are about 60 electrode locations. Each electrode has a value associated with it (e.g. voltage) that is independent of the location. I need some interpolation algorithm that will assign a voltage value to each segment endpoint in the contours. Given this I can use the endpoints to contruct polygons, color each polygon according to the voltage values of its vertices (the endpoints), and display this in 3-d. I would appreciate any information on existing software or any journal articles or library references. Thanks much, Ed. Ed Simpson e-mail by ARPANET: evs@cs.duke.edu P.O.Box 3140, Duke Univ. Medical Center, Durham, NC, USA 27710