Crs.PitchFromLineSegment Method
Returns the pitch angle from one point towards another.
PitchFromLineSegment(Point start, Point end, LineType lineType)
Returns the pitch angle from one point towards another.Syntax
public System.Double PitchFromLineSegment (
Point start,
Point end,
LineType lineType
)Parameters
The start of the line segment.
The end of the line segment.
Return Value
The pitch angle, in degrees up from horizontal, from start to end.
Remarks
Returns the pitch angle at start of the line segment from start to end. The pitch is in degrees, up from horizontal.
For a great-circle arc or a rhumb-line segment, the pitch angle is defined so that its tangent equals the altitude difference divided by the horizontal surface distance (at sea level). For a straight 3D line, the pitch angle is defined to be the angle between the line and the horizontal plane through the start point. Note that these two definitions agree perfectly only if the start point is at sea level, because when a horizontal distance between two points at 6371 meters above sea level, for example, is reduced to a footprint distance at sea level, the distance will decrease by about 0.1 percent due to the curvature of the earth.
See also AzimuthFromLineSegment.
Platforms
Windows, Linux, Android