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CartoType .NET API 9.6-4-g79291b60b
for development in C#, Visual Basic and other .NET languages
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General utility functions More...
#include <CartoTypeWrapper.h>
Static Public Member Functions | |
| static String ^ | Description () |
| Returns a Git description of the current CartoType version as a string of the form MAJOR.MINOR-BUILD-COMMIT. | |
| static String ^ | Version () |
| Returns the current CartoType version as a string of the form MAJOR.MINOR. | |
| static String ^ | Build () |
| Returns the current CartoType build as a string. | |
| static double | SphericalPolygonArea (array< double >^ aX, array< double >^ aY) |
| Returns the area of a spherical polygon in square metres. The polygon is defined in degrees of latitude (y) and longitude (x). | |
| static double | Length (array< double >^ aX, array< double >^ aY) |
| Returns the length of a line, in meters, defined by points of latitude (y) and longitude (x), using great-circle distances. | |
| static double | GreatCircleDistanceInMeters (double aLong1, double aLat1, double aLong2, double aLat2) |
| Returns the great-circle distance in meters between (aLong1,aLat1) and (aLong2,aLat2). This function uses the WGS84 ellipsoid. | |
| static double | AzimuthInDegrees (double aLong1, double aLat1, double aLong2, double aLat2) |
| Returns the azimuth (direction along a great circle) in degrees from (aLong1,aLat1) to (aLong2,aLat2). More... | |
| static Point ^ | PointAtAzimuth (double aLong, double aLat, double aDir, double aDistanceInMeters) |
| Finds the point in degrees at a certain distance and azimuth direction from a starting point. This function uses the WGS84 ellipsoid. | |
| static double | DistanceFromPoint (array< double >^ aX, array< double >^ aY, bool aIsPolygon, double aPointX, double aPointY, Point^ aNearestPoint) |
| Returns the distance from a line of points (if aPolygon is false) or a polygon (if aPolygon is true) to the point (aPointX,aPointY) and puts the nearest point in the line or polygon in aNearestPoint. | |
| static String ^ | SetAttribute (String^ aString, String^ aKey, String^ aValue) |
| Sets an attribute in a string to be used when creating a map object. More... | |
| static String ^ | ErrorString (Result aError) |
| Returns a short description of an error, given its code. | |
| static String ^ | UKGridReferenceFromDegrees (PointValue aPointInDegrees, int aDigits) |
| Converts a point in degrees longitude (x) and latitude (y) (WGS84) into a UK Ordnance Survey national grid reference. More... | |
| static PointValue | PointInDegreesFromUKGridReference (String^ aGridReference) |
| Converts a UK Ordnance Survey national grid reference (two capital letters followed by an even number of digits) into a point in degrees longitude (x) and latitude (y) (WGS84). More... | |
General utility functions
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Returns the azimuth (direction along a great circle) in degrees from (aLong1,aLat1) to (aLong2,aLat2).
This function uses the WGS84 ellipsoid. North is 0 and angles increase clockwise.
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Converts a UK Ordnance Survey national grid reference (two capital letters followed by an even number of digits) into a point in degrees longitude (x) and latitude (y) (WGS84).
The point returned is the center of the square defined by the grid reference. Returns the point (0,0) if the grid reference is invalid.
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Sets an attribute in a string to be used when creating a map object.
Treating a string as a set of map object attributes of the form label|key1=value1|key2=value2| ... |keyN=valueN, where | is character code 0, set a named attribute. An empty or zero-length name sets the label. An empty or zero-length value deletes a name-value pair.
Returns the new string, with the attribute set.
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Converts a point in degrees longitude (x) and latitude (y) (WGS84) into a UK Ordnance Survey national grid reference.
aDigits is the number of digits per coordinate, which is clamped to the range 0...5. Five-digit references are accurate to a meter. Returns null if the point is outside the UK national grid bounds.
1.9.3