[vtkusers] about getbounds() function

[ye.yuanzhi]

vtkusers-request:
     I want to get the bound of the DEM ,so i used vtkDataSet::GetBounds();but the return vale(zmin = = zmax).I don't know why to that?  I want get the range of  the XYZ three orientations  of  the DEM. How to get it? Thanks at first.










				 
　　　　　　　　ye.yuzh
　　　　　　　　yeyuzh at 163.com
　　　　　　　　　　2007-04-26