GRASS GIS 7 Programmer's Manual
7.9.dev(2021)-e5379bbd7
c_execmem.c
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/*!
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\file cluster/c_execmem.c
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\brief Cluster library - Allocate cluster
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(C) 2001-2009 by the GRASS Development Team
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This program is free software under the GNU General Public License
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(>=v2). Read the file COPYING that comes with GRASS for details.
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\author Original author CERL
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*/
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#include <
grass/cluster.h
>
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/*!
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\brief Allocate Cluster structure
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\param C pointer to Cluster structure
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\return 1 on success
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\return 0 on error
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*/
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int
I_cluster_exec_allocate
(
struct
Cluster
*C)
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{
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G_debug
(1,
"I_cluster_exec_allocate(npoints=%d,nclasses=%d,nbands=%d)"
,
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C->
npoints
, C->
nclasses
, C->
nbands
);
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C->
class
=
I_alloc_int
(C->
npoints
);
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C->
reclass
=
I_alloc_int
(C->
nclasses
);
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C->
count
=
I_alloc_int
(C->
nclasses
);
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C->
countdiff
=
I_alloc_int
(C->
nclasses
);
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C->
sum
=
I_alloc_double2
(C->
nbands
, C->
nclasses
);
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C->
sumdiff
=
I_alloc_double2
(C->
nbands
, C->
nclasses
);
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C->
sum2
=
I_alloc_double2
(C->
nbands
, C->
nclasses
);
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C->
mean
=
I_alloc_double2
(C->
nbands
, C->
nclasses
);
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if
(C->
class
==
NULL
|| C->
reclass
==
NULL
||
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C->
sum
==
NULL
|| C->
sumdiff
==
NULL
||
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C->
count
==
NULL
|| C->
countdiff
==
NULL
||
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C->
sum2
==
NULL
|| C->
mean
==
NULL
) {
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I_cluster_exec_free
(C);
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return
0;
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}
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return
1;
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}
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/*!
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\brief Free allocated Cluster structure
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\param C pointer to Cluster structure
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\return 0
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*/
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int
I_cluster_exec_free
(
struct
Cluster
*C)
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{
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I_free
(C->
class
);
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I_free
(C->
reclass
);
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I_free
(C->
count
);
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I_free
(C->
countdiff
);
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I_free_double2
(C->
sum2
);
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I_free_double2
(C->
sum
);
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I_free_double2
(C->
sumdiff
);
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I_free_double2
(C->
mean
);
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C->
class
=
NULL
;
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C->
count
=
NULL
;
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C->
countdiff
=
NULL
;
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C->
sum
=
NULL
;
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C->
sumdiff
=
NULL
;
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C->
sum2
=
NULL
;
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C->
mean
=
NULL
;
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return
0;
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}
I_free
int I_free(void *)
Definition:
imagery/alloc.c:24
I_cluster_exec_free
int I_cluster_exec_free(struct Cluster *C)
Free allocated Cluster structure.
Definition:
c_execmem.c:54
Cluster::nbands
int nbands
Definition:
cluster.h:9
Cluster::sum
double ** sum
Definition:
cluster.h:21
Cluster::mean
double ** mean
Definition:
cluster.h:24
Cluster::nclasses
int nclasses
Definition:
cluster.h:27
I_cluster_exec_allocate
int I_cluster_exec_allocate(struct Cluster *C)
Allocate Cluster structure.
Definition:
c_execmem.c:24
NULL
#define NULL
Definition:
ccmath.h:32
Cluster
Definition:
cluster.h:7
Cluster::npoints
int npoints
Definition:
cluster.h:10
Cluster::count
int * count
Definition:
cluster.h:19
Cluster::sum2
double ** sum2
Definition:
cluster.h:23
Cluster::sumdiff
double ** sumdiff
Definition:
cluster.h:22
Cluster::class
int * class
Definition:
cluster.h:17
Cluster::reclass
int * reclass
Definition:
cluster.h:18
I_alloc_int
int * I_alloc_int(int)
Definition:
imagery/alloc.c:54
cluster.h
Cluster::countdiff
int * countdiff
Definition:
cluster.h:20
I_free_double2
int I_free_double2(double **)
Definition:
imagery/alloc.c:100
G_debug
int G_debug(int, const char *,...) __attribute__((format(printf
I_alloc_double2
double ** I_alloc_double2(int, int)
Definition:
imagery/alloc.c:33
lib
cluster
c_execmem.c
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