secpar2d.c File Reference

#include <stdio.h>
#include <math.h>
#include <unistd.h>
#include <grass/gis.h>
#include <grass/bitmap.h>
#include <grass/interpf.h>

Include dependency graph for secpar2d.c:

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Functions
int	IL_secpar_loop_2d (struct interp_params *params, int ngstc, int nszc, int k, struct BM *bitmask, double *gmin, double *gmax, double *c1min, double *c1max, double *c2min, double *c2max, int cond1, int cond2)

Detailed Description

Author

H. Mitasova, L. Mitas, I. Kosinovsky, D. Gerdes Fall 1994 (original authors)

modified by McCauley in August 1995

modified by Mitasova in August 1995

H. Mitasova (University of Illinois)

L. Mitas (University of Illinois)

I. Kosinovsky, (USA-CERL)

D.Gerdes (USA-CERL)

Copyright

(C) 1994-1995 by Helena Mitasova and the GRASS Development Team

This program is free software under the GNU General Public License (>=v2). Read the file COPYING that comes with GRASS for details.

Author

H. Mitasova, I. Kosinovsky, D. Gerdes Fall 1993 (original authors)

modified by McCauley in August 1995

modified by Mitasova in August 1995

H. Mitasova (University of Illinois)

I. Kosinovsky, (USA-CERL)

D.Gerdes (USA-CERL)

Copyright

(C) 1993-1995 by Helena Mitasova and the GRASS Development Team

This program is free software under the GNU General Public License (>=v2). Read the file COPYING that comes with GRASS for details.

Definition in file secpar2d.c.

Function Documentation

IL_secpar_loop_2d()

int IL_secpar_loop_2d	(	struct interp_params *	params,
		int	ngstc,
		int	nszc,
		int	k,
		struct BM *	bitmask,
		double *	gmin,
		double *	gmax,
		double *	c1min,
		double *	c1max,
		double *	c2min,
		double *	c2max,
		int	cond1,
		int	cond2
	)

Compute slope aspect and curvatures

Computes slope, aspect and curvatures (depending on cond1, cond2) for derivative arrays adx,...,adxy between columns ngstc and nszc.

Parameters

ngstc	starting column
nszc	ending column
k	current row
c2max	min,max interp. values
cond2	determine if particular values need to be computed

Definition at line 39 of file secpar2d.c.

References interp_params::adx, interp_params::adxx, interp_params::adxy, interp_params::ady, interp_params::adyy, amax1(), amin1(), BM_get(), M_R2D, and NULL.