vtkDEMReader

Section: Visualization Toolkit IO Classes

Usage

vtkDEMReader reads digital elevation files and creates image data. Digital elevation files are produced by the <A HREF="http://www.usgs.gov">US Geological Survey</A>. A complete description of the DEM file is located at the USGS site. The reader reads the entire dem file and create a vtkImageData that contains a single scalar component that is the elevation in meters. The spacing is also expressed in meters. A number of get methods provide access to fields on the header.

To create an instance of class vtkDEMReader, simply invoke its constructor as follows

  obj = vtkDEMReader

Methods

The class vtkDEMReader has several methods that can be used. They are listed below. Note that the documentation is translated automatically from the VTK sources, and may not be completely intelligible. When in doubt, consult the VTK website. In the methods listed below, obj is an instance of the vtkDEMReader class.