Web API Reference | MapGuide Open Source

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GetAzimuth
GetAzimuth
GetCoordinate
GetCoordinate
GetDistance
GetDistance
GetEnvelope
virtual double MgCoordinateSystemMeasure::GetDistance | ( | double | x1,
|  | double | y1,
|  | double | x2,
|  | double | y2 |
| ) |  |  | `[pure virtual]`
Computes the distance between two coordinates. .NET Syntax
`virtual double GetDistance(double x1, double y1, double x2, double y2);`
Java Syntax
`virtual double GetDistance(double x1, double y1, double x2, double y2);`
PHP Syntax
`virtual double GetDistance(double x1, double y1, double x2, double y2);`
  Parameters:
  | x1 | (double) The x value in coordinate system units of the first coordinate.
  | y1 | (double) The y value in coordinate system units of the first coordinate.
  | x2 | (double) The x value in coordinate system units of the second coordinate.
  | y2 | (double) The y value in coordinate system units of the second coordinate.
Returns: Returns the distance between (x1, y1) and (x2, y2) as a double in meters. Example (PHP) (-74.806394, 40.714169) is New York City, and (-71.061342, 42.355892) is Boston, Massachusetts. $distance is 361777.95418396 meters.
     $distance = $coordSysMeasure->Getdistance(-74.806394, 40.714169, -71.061342, 42.355892);
Example (C#)
     using OSGeo.MapGuide;
     private MgCoordinateSystemMeasure geogCSMeasure;
     private double geogCSX = -160.101421317;
     private double geogCSY = 22.0234263273;
     private double geogCSX1 = -159.721535121256;
     private double geogCSY1 = 24.0028259520524;
     private double geogCSDistance = 2.0;
     private double distance;
     private double tolerance = 0.001;
     private Boolean isEquivalent;

     distance = geogCSMeasure.GetDistance(geogCSX, geogCSY, geogCSX1, geogCSY1);
     // distance has the value of geogCSDistance
     isEquivalent = Math.Abs(distance - geogCSDistance) < tolerance;
  Exceptions:
  | MgCoordinateSystemMeasureFailedException |

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