Calculate a geodesic path between two points and measure its distance.
A geodesic distance provides an accurate, real-world distance between two points. Visualizing flight paths between cities is a common example of a geodesic operation since the flight path between two airports takes into account the curvature of the earth, rather than following the planar path between those points, which appears as a straight line on a projected map.
Click anywhere on the map. A line graphic will display the geodesic line between the two points. In addition, text that indicates the geodesic distance between the two points will be updated. Click elsewhere and a new line will be created.
- A
Pointis created in New York City and displayed as aGraphic. - When a click occurs on the
MapView, a newPointis obtained from the mouse click. ThisPointis added as aGraphic. - A
Polylineis created with the twoPointobjects. GeometryEngine.DensifyGeodeticis called from thePolylineobject, and the returnedGeometryis stored aspathGeometry.GeometryEngine.LengthGeodeticis called frompathGeometry, and the returned number is displayed on the screen.
- GeometryEngine.DensifyGeodetic
- GeometryEngine.LengthGeodetic
The Imagery basemap provides the global context for the displayed geodesic line.
densify, distance, geodesic, geodetic