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GRASS GIS 7 Programmer's Manual
7.9.dev(2021)-e5379bbd7
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#include <stdio.h>#include <math.h>#include <unistd.h>#include <grass/gis.h>#include <grass/vector.h>#include <grass/dbmi.h>#include <grass/interpf.h>
Go to the source code of this file.
Macros | |
| #define | POINT2D_C |
Functions | |
| int | IL_check_at_points_2d (struct interp_params *params, struct quaddata *data, double *b, double *ertot, double zmin, double dnorm, struct triple skip_point) |
Definition in file point2d.c.
| int IL_check_at_points_2d | ( | struct interp_params * | params, |
| struct quaddata * | data, | ||
| double * | b, | ||
| double * | ertot, | ||
| double | zmin, | ||
| double | dnorm, | ||
| struct triple | skip_point | ||
| ) |
Checks if interpolating function interp() evaluates correct z-values at given points. If smoothing is used calculate the maximum error caused by smoothing.
ertot is a RMS deviation of the interpolated surface.
| data | current region |
| b | solution of linear equations |
| ertot | total error |
| zmin | min z-value |