TraceOnGeodesic Method

WRAPPER_API void TraceOnGeodesic(CoordPointCollection& trace, const GeodeticPoint& start, const GeodeticPoint& end, double spacing) const;
WRAPPER_API void TraceOnGeodesic(CoordPointCollection& trace, const GeodeticPoint& start, const GeodeticPoint& end, int numPoints, bool isRhumb) const;

Description

Populates a coordinate point collection with regularly-spaced geodetic points tracing a geodesic line between two points.

Example

void Ellipsoid_TraceOnGeodesic()
{
GeodeticPoint *start;
GeodeticPoint *end;
Ellipsoid *el;
CoordPointCollection *trace = new CoordPointCollection();
double spacing = 1000 //in meters
el = m_DataSource->GetEllipsoid(BMG_T("BMG"),BMG_T("WGS84"));
start = m_DataSource->GetGeodeticPoint(BMG_T("BMG"),BMG_T("GEODETIC_POINT_DEGREES"));
end = m_DataSource->GetGeodeticPoint(BMG_T("BMG"),BMG_T("GEODETIC_POINT_DEGREES"));
start->set_InUnits(42,-69);
end->set_InUnits(45,-69);
trace->set_PointStyle(*m_DataSource->GetGeodeticPoint(BMG_T("BMG"),BMG_T("GEODETIC_POINT_DEGREES"));
el->TraceOnGeodesic(*trace,*start,*end,spacing);
 
Disposal::Dispose(start);
Disposal::Dispose(end);
Disposal::Dispose(el);
Disposal::Dispose(trace);
 

}