kjb::Ned13_bilinear_reader Struct Reference

support NED 13 elevation queries using bilinear interpolation More...

#include <nedgrid.h>

Inheritance diagram for kjb::Ned13_bilinear_reader:

Public Member Functions
float	elevation_meters (const TopoFusion::pt &)
	basic query operation: estimate the elevation at a point More...
	Ned13_bilinear_reader (const std::vector< std::string > &path=std::vector< std::string >())
Public Member Functions inherited from kjb::Ned13_caching_reader
	Ned13_caching_reader (const std::vector< std::string > &path=std::vector< std::string >())
virtual	~Ned13_caching_reader ()

Additional Inherited Members
Public Attributes inherited from kjb::Ned13_caching_reader
Ned13_grid_cache	cache

Detailed Description

support NED 13 elevation queries using bilinear interpolation

Like all Ned13_reader classes, this supports queries off the NED 13 grid. This particular class returns, for non-grid points, a bilinear-interpolated estimate, i.e., based on the nearest neighbors in the four directions. The elevation estimates are everywhere continuous, but the slopes are discontinuous at grid lines.

Constructor & Destructor Documentation

kjb::Ned13_bilinear_reader::Ned13_bilinear_reader ( const std::vector< std::string > &  path = std::vector<std::string>() )

inline

Member Function Documentation

float kjb::Ned13_bilinear_reader::elevation_meters ( const TopoFusion::pt &  utm )

virtual

basic query operation: estimate the elevation at a point

Implements kjb::Ned13_caching_reader.

---

The documentation for this struct was generated from the following files:

• /work/kobus/src/lib/topo_cpp/nedgrid.h
• /work/kobus/src/lib/topo_cpp/nedgrid.cpp