public function PreStrokeAdjust($graph)
{
parent::PreStrokeAdjust($graph);
// If we are using a log Y-scale we want the base to be at the
// minimum Y-value unless the user have specifically set some other
// value than the default.
if (substr($graph->axtype, -3, 3) == "log" && $this->ybase == 0) {
$this->ybase = $graph->yaxis->scale->GetMinVal();
}
// For a "text" X-axis scale we will adjust the
// display of the bars a little bit.
if (substr($graph->axtype, 0, 3) == "tex") {
// Position the ticks between the bars
$graph->xaxis->scale->ticks->SetXLabelOffset(0.5, 0);
// Center the bars
if ($this->abswidth > -1) {
$graph->SetTextScaleAbsCenterOff($this->abswidth);
} else {
if ($this->align == "center") {
$graph->SetTextScaleOff(0.5 - $this->width / 2);
} elseif ($this->align == "right") {
$graph->SetTextScaleOff(1 - $this->width);
}
}
} elseif ($this instanceof AccBarPlot || $this instanceof GroupBarPlot) {
// We only set an absolute width for linear and int scale
// for text scale the width will be set to a fraction of
// the majstep width.
if ($this->abswidth == -1) {
// Not set
// set width to a visuable sensible default
$this->abswidth = $graph->img->plotwidth / (2 * $this->numpoints);
}
}
}
