CoreandServices.book - Ocean - Schlumberger

Geometry
The input arguments X, Y, and Z define the position of the point. The output argument
“theta” is the Angle object that represents the angle in Cartesian space between the X
axis and the line connecting the origin to the point projected onto the XY plane. The
Angle object “phi” represents the angle between the XY plane and the line connecting
the origin to the point. The angles returned are expressed in radians. The value “rho” is
the length of the line connecting the 3D origin to the point.
// location X value
double x = 37.5;
// location Y value
double y = 21.65;
// location Z value
double z = 50.0;
// Angle on XY plane in radians
Angle theta ;
// Angle of inclination in radians
Angle phi ;
// distance from origin to point
double rho ;
Point3.GetPolarFromCartesian(x, y, z, out theta, out phi, out rho);
// theta = 0.5235, phi = 0.5235, rho = 50.0
IsNull – This method returns a bool indicating if the input Point object has a null
definition. A null is defined as one or more of its properties being NaN so that it cannot
represent a real geometric position.
Point3 pt = ...;
if (Point3.IsNull(pt))
//Point object is null.
4-140 Ocean Application Development Framework 2008.1
Schlumberger Private