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LatLonQuickDistanceTo Method

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Measure approximate distance between this and another LatLon (using a Pythagorean approximation). See remarks for comments on the accuracy of this method.

Namespace:  Telogis.GeoBase
Assembly:  geobase.net (in geobase.net.dll) Version: 4.99.0.0
Syntax
Copy
public double QuickDistanceTo(
	LatLon other,
	DistanceUnit units
)

Parameters

other
Type: Telogis.GeoBaseLatLon
Destination LatLon.
units
Type: Telogis.GeoBaseDistanceUnit
Unit that measurement is returned in.

Return Value

Type: Double
Distance in requested units.
Remarks
The Quick distance assumes that the world is flat between the two points. This assumption is safe when the points are near each other. If the points are a significant distance apart the straight line between the Polygon and the point will pass through the interior of the world. To calculate the true shortest distance consider using the DistanceTo method. The DistanceTo method calculates the distance using a great circle which traces an arc over the surface of the earth.
Examples
C#
Copy
LatLon a = new LatLon(33.587507, -117.741057);
LatLon b = new LatLon(33.553911, -117.677531);
Double distance = a.QuickDistanceTo(b, DistanceUnit.MILES);
// 4.33506359965544 miles
See Also