GridInterpolator.Geo2Jk Method

GridInterpolatorGeo2Jk Method

Convert coordinates from projection easting-northing coordinates to fractional indices in the source grid. The fractional indices can be used directly in the Interpolate(Single, Double, Double, Single) method.

For a 3 x 2 element/cell based grid, (j,k) is in the range [0;3] x [0;2].

For a 3 x 2 node based grid, (j,k) is in the range [0;2] x [0;1].

Namespace: DHI.Projections
Assembly: DHI.Projections (in DHI.Projections.dll) Version: 16.0.0.0 (11.1.1.1111)

Syntax

C++

Copy

public bool Geo2Jk(
	double lon,
	double lat,
	out double j,
	out double k
)

Public Function Geo2Jk ( 
	lon As Double,
	lat As Double,
	<OutAttribute> ByRef j As Double,
	<OutAttribute> ByRef k As Double
) As Boolean

public:
bool Geo2Jk(
	double lon, 
	double lat, 
	[OutAttribute] double% j, 
	[OutAttribute] double% k
)

member Geo2Jk : 
        lon : float * 
        lat : float * 
        j : float byref * 
        k : float byref -> bool

Parameters

lon: Type: SystemDouble
Geographical longitude/x coordinate
lat: Type: SystemDouble
Geographical latitude/y coordinate
j: Type: SystemDouble
Fractional j index (x-axis)
k: Type: SystemDouble
Fractional k index (y-axis)

Return Value

Type: Boolean
true if inside source grid, false if outside

Reference

GridInterpolator Class

DHI.Projections Namespace