Hi

Is it possible to draw more than one surface on a grid surface chart?

We are generating a surface by fitting the best surface to a series of (x, y, z) points, and we want to overlay the original (x, y, z) data to see how good the fit is. The original data is ideally drawn as series of points, with a drop down line onto the base "plane" so we can get an idea where the points lie in relation to the fitted surface.

We would also want to highlight one point on the surface as a the selected surface location.

Hope this makes sense.

Thanks

Kevin