Average time per lap graph.

diff --git a/lib/race.php b/lib/race.php
index bc7e933..e273d1f 100644 (file)
--- a/lib/race.php
+++ b/lib/race.php
@@ -1043,6 +1043,14 @@
           "type" => "bar"
         )
       );
+      $laptimes = array(
+        "average_laps" => array(
+          "x" => array(),
+          "y" => array(),
+          "name" => "Average lap times",
+          "type" => "bar"
+        )
+      );
       $laps = array(
         "fastest_laps" => array(
           "x" => array(),
@@ -1069,8 +1077,12 @@
         $speeds["leg_speed"]["y"][] = (float) $row["speed"];
       }
       /* Average time per lap. */
-      //$sth = $dbh->prepare("select lap_number, avg(delta) from (select lap_number, timestampdiff(second, min(arrival), max(arrival)) as delta from laptime, lap, entry where laptime.lap_id=lap.id and lap.entry_id=entry.id and lap_number<=entry.complete_laps and race_id=:race_id and entry_id in $(entry_list) group by entry_id, lap_number) as aggregate_laps group by lap_number");
-      //$sth->execute(array(":race_id" => $id));
+      $sth = $dbh->prepare("select lap_number, avg(delta) as laptime from (select lap_number, timestampdiff(second, min(arrival), max(arrival)) as delta from laptime, lap, entry where laptime.lap_id=lap.id and lap.entry_id=entry.id and lap_number<=entry.complete_laps and race_id=:race_id and entry_id in ($entry_list) group by entry_id, lap_number) as aggregate_laps group by lap_number");
+      $sth->execute(array(":race_id" => $id));
+      while ($row = $sth->fetch()) {
+        $laptimes["average_laps"]["x"][] = "Lap " . $row["lap_number"];
+        $laptimes["average_laps"]["y"][] = "2000-01-01 " . format_time((int) $row["laptime"]);
+      }
       /* Fastest individual lap. */
       $sth = $dbh->prepare("select lap_number, count(*) as n from (select lap_number, delta from (select entry_id, lap_number, timestampdiff(second, min(arrival), max(arrival)) as delta from laptime, lap, entry where laptime.lap_id=lap.id and lap.entry_id=entry.id and lap_number<=entry.complete_laps and race_id=:race_id and entry_id in ($entry_list) group by entry_id, lap_number order by entry_id, delta) as aggregate_laps group by entry_id) as aggregate_fastest group by lap_number");
       $sth->execute(array(":race_id" => $id));
@@ -1110,6 +1122,8 @@
       else echo "var pies = null;\n";
       echo "var legs = " . json_encode(array_values($legs)) . ";\n";
       echo "var speeds = " . json_encode(array_values($speeds)) . ";\n";
+      if (count($laptimes["average_laps"]["x"]) > 1) echo "var laptimes = " . json_encode(array_values($laptimes)) . ";\n";
+      else echo "var laptimes = null;\n";
       if (count($laps["fastest_laps"]["x"]) > 1) echo "var laps = " . json_encode(array_values($laps)) . ";\n";
       else echo "var laps = null;\n";
       if (count($raced_times) && count($raced_times[0]["x"]) > 1) echo "var raced_times = " . json_encode(array_values($raced_times)) . ";\n";
@@ -1121,6 +1135,7 @@
       echo "<div id=\"plot_distribution\"></div>\n";
       echo "<div id=\"plot_legs\"></div>\n";
       echo "<div id=\"plot_speeds\"></div>\n";
+      echo "<div id=\"plot_laptimes\"></div>\n";
       echo "<div id=\"plot_laps\"></div>\n";
       echo "<div id=\"plot_raced_times\"></div>\n";
       echo "<div id=\"plot_raced_days\"></div>\n";

diff --git a/race.js b/race.js
index 580b89b..850c0e4 100644 (file)
--- a/race.js
+++ b/race.js
@@ -205,6 +205,11 @@ function loaded() {
       title: 'Average station to station speed',
       yaxis: { title: 'Speed (Ly/h)' }
     });
+    canvas = document.getElementById('plot_laptimes');
+    if (canvas && laps) Plotly.plot(canvas, laptimes, {
+      title: 'Average lap times',
+      yaxis: { title: 'Time', tickformat: '%H:%M:%S' }
+    });
     canvas = document.getElementById('plot_laps');
     if (canvas && laps) Plotly.plot(canvas, laps, {
       title: 'Fastest individual laps',