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ancient-weatherstation
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chart: min / max - generating 

git-svn-id: file:///home/jan/tmp/wetterstation/trunk@83 dd492736-c11a-0410-ad51-8c26713eaf7f
This commit is contained in:
losinshi 2006-09-13 07:31:05 +00:00
parent 033104310c
commit 0fcdac9720
1 changed files with 19 additions and 1 deletions
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20
cronjob/chart/image_file/image_data.c
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@ -13,6 +13,9 @@
static pix_list_ptr min = NULL;
static pix_list_ptr max = NULL;
static pix_list_ptr add_pix_value(pix_list_ptr , int , int ); static pix_list_ptr add_pix_value(pix_list_ptr , int , int );
static char *get_conn_string(); static char *get_conn_string();
@ -58,12 +61,27 @@ pix_list_ptr get_pix_list(int c_width){
pix_coord = floor( ((double)time_temp) * seconds_per_pix) ; pix_coord = floor( ((double)time_temp) * seconds_per_pix) ;
temp_ptr = add_pix_value(temp_ptr, pix_coord, atoi( PQgetvalue(res, i, val_field) ) ); temp_ptr = add_pix_value(temp_ptr, pix_coord, atoi( PQgetvalue(res, i, val_field) ) );
if(list_ptr == NULL){ if (list_ptr == NULL)
list_ptr = temp_ptr; list_ptr = temp_ptr;
/* Min / Max ermitteln */
if (min != NULL){
if ( (temp_ptr->value_sum / temp_ptr->value_count) < (min->value_sum / min->value_count) )
min = temp_ptr;
} else {
min = temp_ptr;
} }
if (max != NULL){
if ( (temp_ptr->value_sum / temp_ptr->value_count) > (max->value_sum / max->value_count) )
max = temp_ptr;
} else {
max = temp_ptr;
}
} }
DEBUGOUT3(" Min: x-pos.: %d, Wert: %d\n", min->x_pix_coord, (min->value_sum / min->value_count) );
DEBUGOUT3(" Max: x-pos.: %d, Wert: %d\n", max->x_pix_coord, (max->value_sum / max->value_count) );
PQclear(res); PQclear(res);
PQfinish(conn); PQfinish(conn);
free(query); free(query);