Add simple post-flight analysis tool (ao-postflight)

[fw/altos] / ao-tools / lib / cc-analyse.c

diff --git a/ao-tools/lib/cc-analyse.c b/ao-tools/lib/cc-analyse.c
new file mode 100644 (file)
index 0000000..6fd36cd
--- /dev/null
+++ b/ao-tools/lib/cc-analyse.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright © 2009 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#include "cc.h"
+
+int
+cc_timedata_min(struct cc_timedata *d, double min_time, double max_time)
+{
+       int     i;
+       int     set = 0;
+       int     min_i;
+       double  min;
+
+       if (d->num == 0)
+               return 0;
+       for (i = 0; i < d->num; i++)
+               if (min_time <= d->data[i].time && d->data[i].time <= max_time)
+                       if (!set || d->data[i].value < min) {
+                               min_i = i;
+                               min = d->data[i].value;
+                               set = 1;
+                       }
+       return min_i;
+}
+
+int
+cc_timedata_max(struct cc_timedata *d, double min_time, double max_time)
+{
+       int     i;
+       double  max;
+       int     max_i;
+       int     set = 0;
+
+       if (d->num == 0)
+               return 0;
+       for (i = 0; i < d->num; i++)
+               if (min_time <= d->data[i].time && d->data[i].time <= max_time)
+                       if (!set || d->data[i].value > max) {
+                               max_i = i;
+                               max = d->data[i].value;
+                               set = 1;
+                       }
+       return max_i;
+}