GRASS 8 Programmer's Manual
8.6.0dev(2026)-f6f2c534ea
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c_minx.c
Go to the documentation of this file.
1
#include <
grass/gis.h
>
2
#include <
grass/raster.h
>
3
4
void
c_minx
(
DCELL
*result,
DCELL
*values,
int
n,
const
void
*closure
UNUSED
)
5
{
6
DCELL
min
,
minx
;
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int
i;
8
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Rast_set_d_null_value
(&
min
, 1);
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Rast_set_d_null_value
(&
minx
, 1);
11
12
for
(i = 0; i < n; i++) {
13
if
(
Rast_is_d_null_value
(&values[i]))
14
continue
;
15
16
if
(
Rast_is_d_null_value
(&
min
) ||
min
> values[i]) {
17
min
= values[i];
18
minx
= i;
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}
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}
21
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if
(
Rast_is_d_null_value
(&
minx
))
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Rast_set_d_null_value
(result, 1);
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else
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*result =
minx
;
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}
AMI_STREAM
Definition
ami_stream.h:153
Rast_set_d_null_value
void Rast_set_d_null_value(DCELL *, int)
To set a number of DCELL raster values to NULL.
Definition
null_val.c:153
Rast_is_d_null_value
#define Rast_is_d_null_value(dcellVal)
Definition
defs/raster.h:417
c_minx
stat_func c_minx
min
#define min(x, y)
Definition
draw2.c:29
gis.h
DCELL
double DCELL
Definition
gis.h:635
UNUSED
#define UNUSED
A macro for an attribute, if attached to a variable, indicating that the variable is not used.
Definition
gis.h:46
raster.h
lib
stats
c_minx.c
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