FUNCTION c_forward (line, sample, tarelev, model, tarlatd, tarlong, view_angles)
double *line; double *sample; double *tarelev; struct MODEL *model; double *tarlatd; double *tarlong; double view_angles[];
The number of the line within the pass.
The number of the sample within the pass.
The elevation of the point defined by line and sample (kilometers). If the elevation is unknown, an elevation of zero (0) should be specified.
Structure with model and orbital information.
Computed latitude value.
Computed longitude value.
The satellite zenith angle is returned in view_angles[0]. The solar zenith angle is returned in view_angles[1]. The relative azimuth angle is returned in view_angles[2]. View angles will not be calculated when the input value of view_angles is NULL. All view angles are returned in radians.
Using the AVHRR model, convert a line/sample to a latitude/longitude. c_forward() should only be called if line and sample are relative to the North-up scene; otherwise c_ls2ll() should be used.
c_forward() has no return value.