51       QString toString() 
const;
 Buffer for reading and writing cube data. 
 
Angle * m_azimuth
This is direction of the light, with 0 at north. 
 
double shadedValue(Buffer &input) const
Calculate the shaded value from a 3x3x1 window. 
 
void setAzimuth(Angle azimuth)
The azimuth is the direction of the light. 
 
Hillshade & operator=(const Hillshade &rhs)
Assignment operator. 
 
Angle azimuth() const
Get the current azimuth angle. 
 
Angle * m_zenith
This is the altitide of the light, with 0 directly overhead and 90 at the horizon. 
 
void setZenith(Angle zenith)
The zenith is the altitude/solar elevation of the light. 
 
Hillshade()
Create a default-constructed Hillshade. 
 
Calculate light intensity reflected off a local slope of DEM. 
 
void setResolution(double resolution)
The resolution is the meters per pixel of the input to shadedValue(). 
 
Defines an angle and provides unit conversions. 
 
void swap(Hillshade &other)
Swap class data with other; this cannot throw an exception. 
 
double resolution() const
Get the current resolution (meters per pixel). 
 
Namespace for ISIS/Bullet specific routines. 
 
QDebug operator<<(QDebug debug, const Hillshade &hillshade)
Print this class out to a QDebug object. 
 
double m_pixelResolution
meters per pixel 
 
Angle zenith() const
Get the current zenith angle.