| pe_vtmethod_inverse | |
Retrieves the inverse function to transform between vertical coordinate systems
PE_VTMETHFUNC pe_vtmethod_inverse (PE_VTMETHOD vtmethod);
| vtmethod | The vertical transformation method object |
Pe_vtmethod_inverse returns the inverse function to transform between vertical coordinate systems in the inverse, or reverse, direction. Transformations are defined in a particular direction. It is often possible to reverse or inverse the transformation.
On success, returns the vertical transformation method inverse transformation; on failure, returns a null pointer.
PE_VTMETHOD EGMbilinear = pe_vtmethod_new("EGM96bilinear", &EGM96_f, &EGM96_i);
PE_VTMETHFUNC inv = pe_vtmethod_inverse(EGMbilinear);