3D Interpolator - point to line

[FreeternityRusinga]

Anyone who knows of a tool that intersects a polyline with the points and assigns elevation values of intersected points to the polyline and then linearly interpolates elevations between the intersected points and converts the line to a 3D line. I would want to use the tools to interpolate under water elevations between surveyed cross-sections.

[GerryGabrisch]

There are tools in ArcGIS v10, or in Hawth�??s Tools, that will create a line from point data. Better would be to use any point, line or polygon dataset that have z values to create a TIN surface model directly with the tools available in the 3d Analyst extension.
If you only have point data with z values, and only the spatial analyst extension,  you could use the interpolation tools.