/**
* Calculate pace array
* @return array
*/
public function calculate()
{
if (null !== $this->Smoother) {
$this->Pace = $this->Smoother->smooth(0.001, PaceSmoother::MODE_DISTANCE);
}
return $this->Pace;
}
/**
* @return array
*/
protected function computeZones()
{
// TODO
// - move this a calculation class
// - make zones configurable
$Zones = array();
$SmoothTrackdata = clone $this->Context->trackdata();
$Smoother = new PaceSmoother($SmoothTrackdata, true);
$SmoothTrackdata->set(Trackdata\Object::PACE, $Smoother->smooth(self::STEP_SIZE, PaceSmoother::MODE_STEP));
$hasHR = $this->Context->trackdata()->has(Trackdata\Object::HEARTRATE);
$Distribution = new TimeSeriesForTrackdata($SmoothTrackdata, Trackdata\Object::PACE, array(Trackdata\Object::DISTANCE), $hasHR ? array(Trackdata\Object::HEARTRATE) : array());
$Data = $Distribution->data();
foreach ($Distribution->histogram() as $paceInSeconds => $seconds) {
$pace = $this->zoneFor($paceInSeconds);
if (!isset($Zones[$pace])) {
$Zones[$pace] = array('time' => $seconds, 'distance' => $Data[$paceInSeconds][Trackdata\Object::DISTANCE], 'hr' => $hasHR ? $Data[$paceInSeconds][Trackdata\Object::HEARTRATE] * $seconds : 0);
} else {
$Zones[$pace]['time'] += $seconds;
$Zones[$pace]['distance'] += $Data[$paceInSeconds][Trackdata\Object::DISTANCE];
$Zones[$pace]['hr'] += $hasHR ? $Data[$paceInSeconds][Trackdata\Object::HEARTRATE] * $seconds : 0;
}
}
ksort($Zones, SORT_NUMERIC);
return $Zones;
}
public function testKeepingArraySize()
{
$arraySizes = range(15, 35);
$stepSizes = range(2, 11);
$modes = array('step' => PaceSmoother::MODE_STEP, 'time' => PaceSmoother::MODE_TIME, 'distance' => PaceSmoother::MODE_DISTANCE);
foreach ($arraySizes as $arraySize) {
$Smoother = new PaceSmoother(new Object(array(Object::TIME => range(0, $arraySize - 1), Object::DISTANCE => range(0, $arraySize - 1))), true);
foreach ($stepSizes as $stepSize) {
foreach ($modes as $name => $mode) {
$this->assertEquals($arraySize, count($Smoother->smooth($stepSize, $mode)), 'Wrong array size for mode = ' . $name . ', arraySize = ' . $arraySize . ' and stepSize = ' . $stepSize);
}
}
}
}
