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].

Definition

Namespace: DHI.Projections
Assembly: DHI.Projections (in DHI.Projections.dll) Version: 24.0.0.0 (11.1.1.1111)
C#
public bool Geo2Jk(
	double lon,
	double lat,
	out double j,
	out double k
)

Parameters

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

Return Value

Boolean
true if inside source grid, false if outside

See Also