GRASS GIS 7 Programmer's Manual  7.7.svn(2018)-r73574
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c_merge.c
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1 /*!
2  \file cluster/c_merge.c
3 
4  \brief Cluster library - Merge
5 
6  (C) 2001-2009 by the GRASS Development Team
7 
8  This program is free software under the GNU General Public License
9  (>=v2). Read the file COPYING that comes with GRASS for details.
10 
11  \author Original author CERL
12 */
13 
14 #include <grass/cluster.h>
15 
16 /*!
17  \brief ?
18 
19  \param C pointer to Cluster structure
20 
21  \return 0
22 */
23 int I_cluster_merge(struct Cluster *C)
24 {
25  int band, p;
26  int c1, c2;
27 
28  c1 = C->merge1;
29  c2 = C->merge2;
30 
31  for (p = 0; p < C->npoints; p++)
32  if (C->class[p] == c2)
33  C->class[p] = c1;
34  C->count[c1] += C->count[c2];
35  C->count[c2] = 0;
36  for (band = 0; band < C->nbands; band++) {
37  C->sum[band][c1] += C->sum[band][c2];
38  C->sum[band][c2] = 0;
39  }
40 
41  return 0;
42 }
int nbands
Definition: cluster.h:9
double ** sum
Definition: cluster.h:21
int merge1
Definition: cluster.h:28
int I_cluster_merge(struct Cluster *C)
?
Definition: c_merge.c:23
Definition: cluster.h:7
int npoints
Definition: cluster.h:10
int * count
Definition: cluster.h:19
int * class
Definition: cluster.h:17
int merge2
Definition: cluster.h:28