3D Analyst - Interpolate Line / Profile Graph in ArcObjects

BrentStevener

I posted a thread originally in 3D Analyst forums, but I think it may better be served here.

I am looking at ways to programmatically run a couple of tools in 3D Analyst, 'Interpolate Line', and then 'Profile Graph' to show a graphical representation of the line at different elevation points. The resulting graph that is made when I run these two tools is great, but I need to do this behind the scenes using ArcObjects and be able to capture this graph output and save to the hard disk. However, I have found next to nothing on how to do something similar using ArcObjects (we are using version 10). Any ideas?

JosephSheffield

I'm facing the same issue.  I've ended up writing my own code to extract the profile graphs from a raster.   I have a version working for Arc 9.3 and I am in the process of migrating this code over to Arc10.  However, I'm having an issue.  When trying to get the raster from a IRasterBand data type to the IRasterSurface I get a null return.

Here is the code so far:

public void GetThicknessData(IRasterLayer rAlamoSurface, IFeatureLayer fThicknessProfile)
          {
              try
              {
                  IFeature fProfile = fThicknessProfile.FeatureClass.GetFeature(11);
                  IPointCollection pPointCollection = null;
                  IPolyline pPolyLine = null;
                  IGeometry pGeom = null;
                  Double dCellSize = 30;
                  IRasterBandCollection pRasterBands = null;
                  pRasterBands = rAlamoSurface.Raster as IRasterBandCollection;
                  IRasterBand pRasterBand = pRasterBands.Item(0);
                  IRasterSurface pRasterSurface = null;
                  //I get the error here....trying to cast an IRasterBand to an IRasterSurface
                  //pRasterSurface.RasterBand = pRasterBand as IRasterSurface;
                  //I've found other VB.net references that use:
                  //pRasterSurface.RasterBand = pRasterBand;
                  //In every case I try the pRasterSurface is null.
                  pRasterSurface = rAlamoSurface.Raster as IRasterSurface;