function __construct(DATARequest $props = NULL)
{
global $GRAPH_INTERPOLATE_DATA_GAPS;
global $GRAPH_ACCURACY_MARKS_IF_GAPS;
global $GRAPH_INDICATE_MISSING_DATA;
global $GRAPH_INDICATE_DATA_DENSITY;
if ($props) {
parent::__construct($props);
} else {
parent::__construct(new DATARequest());
}
if ($this->width < 32 || $this->height < 32) {
throw new ADEIException(translate("The graph dimmensions (%ux%u) are too small, use at least 32x32", $this->width, $this->height));
}
/* DS, ToDo: We should restore some variables before we can reuse files
if (is_file($TMP_PATH . "/" . $this->tmpfile)) $this->ready = true;
else */
$this->reader = $this->req->CreateReader();
$opts = $this->req->GetOptions();
$this->use_cache_timewindow = $opts->Get('use_cache_timewindow');
$this->time_limit = $opts->GetDateLimit();
$this->set_time_axes = !$opts->Get('optimize_time_axes');
if (isset($this->req->props['precision'])) {
$this->precision_mode = $this->FindPrecisionMode($this->req->props['precision']);
} else {
$this->precision_mode = 0;
}
if (isset($this->req->props['aggregation'])) {
$this->aggregator = CACHE::FindAggregator($this->req->props['aggregation']);
} else {
$this->aggregator = CACHE::TYPE_AUTO;
}
if (isset($this->req->props['show_marks'])) {
$this->show_marks = $this->FindMarksMode($this->req->props['show_marks']);
} else {
if ($GRAPH_ACCURACY_MARKS_IF_GAPS) {
$this->show_marks = DRAW::MARKS_GAPS;
} else {
$this->show_marks = DRAW::MARKS_DEFAULT;
}
}
if (isset($this->req->props['show_gaps'])) {
$this->show_gaps = $this->FindGapsMode($this->req->props['show_gaps']);
} else {
if ($GRAPH_INDICATE_DATA_DENSITY) {
eval("\$this->show_gaps = DRAW::{$GRAPH_INDICATE_DATA_DENSITY};");
} else {
$this->show_gaps = $GRAPH_INDICATE_DATA_DENSITY;
}
}
if (isset($this->req->props['interpolate'])) {
$this->interpolate_gaps = $this->req->props['interpolate'];
} else {
$this->interpolate_gaps = $opts->Get('graph_interpolate', $GRAPH_INTERPOLATE_DATA_GAPS);
}
$this->allowed_gap = $opts->Get('maximal_allowed_gap', false);
$this->hide_axes = $this->req->GetProp('hide_axes', false);
}