private function DrawScale($ovScale = NULL)
{
$pageHeight = $this->pdf->getPageHeight();
$paddingBottom = 7;
$textPadding = 5;
$fontSize = 6;
$style = array("width" => 0.4, "cap" => "butt", "join" => "miter", "dash" => 0, "color" => array(0, 0, 0));
$start_x = MgUtils::ParseLocaleDouble($this->margin[2]);
$start_y = $pageHeight - $paddingBottom;
$lineMark_h = 3;
$textMarkPadding = 1.0;
//<editor-fold defaultstate="collapsed" desc="print the scale bar with meter">
$unit = "m";
$imageSpan = 20;
// the 20 is a suggested scale bar length
$scale = $this->scaleDenominator;
if ($ovScale != NULL) {
$scale = $ovScale;
}
$realSpan = $scale * 0.02;
// $imageSpan / 1000
if ($realSpan >= 1000) {
$unit = "km";
$realSpan /= 1000;
$realSpan = MgUtils::GetRoundNumber($realSpan);
$imageSpan = $realSpan * 1000000 / $scale;
} else {
$realSpan = MgUtils::GetRoundNumber($realSpan);
$imageSpan = $realSpan * 1000 / $scale;
}
$end_x = $start_x + $imageSpan;
$end_y = $start_y;
$meterTextMark = $realSpan . " " . $unit;
$this->pdf->SetFont($this->font, "", $fontSize, "", true);
$this->pdf->Line($start_x, $start_y, $end_x, $end_y, $style);
$this->pdf->Line($start_x, $start_y, $start_x, $start_y - $lineMark_h, $style);
$this->pdf->Line($end_x, $end_y, $end_x, $end_y - $lineMark_h, $style);
$fontSize = 7;
$textHeight = 4;
$this->pdf->SetFont($this->font, "", $fontSize, "", true);
$this->pdf->Text($start_x + $textMarkPadding, $start_y - $textHeight, $meterTextMark);
$textStart_x = $end_x;
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc="print the scale bar with feet">
$unit = "ft";
$aFeetPerMeter = 3.2808;
$aFeetPerMile = 5280;
$aMeterPerFeet = 0.3048;
$imageSpan = 20;
// the 20 is a suggested scale bar length, in "mm"
$realSpan = $scale * $imageSpan / 1000 * $aFeetPerMeter;
if ($realSpan > $aFeetPerMile) {
$unit = "mi";
$realSpan /= $aFeetPerMile;
$realSpan = MgUtils::GetRoundNumber($realSpan);
$imageSpan = $realSpan * $aFeetPerMile * $aMeterPerFeet * 1000 / $scale;
} else {
$realSpan = MgUtils::GetRoundNumber($realSpan);
$imageSpan = $realSpan * $aMeterPerFeet * 1000 / $scale;
}
$end_x = $start_x + $imageSpan;
$end_y = $start_y;
$feetTextMark = $realSpan . ' ' . $unit;
$this->pdf->Line($start_x, $start_y, $end_x, $end_y, $style);
$this->pdf->Line($start_x, $start_y, $start_x, $start_y + $lineMark_h, $style);
$this->pdf->Line($end_x, $end_y, $end_x, $end_y + $lineMark_h, $style);
$this->pdf->SetFont($this->font, "", $fontSize, "", true);
$this->pdf->Text($start_x + $textMarkPadding, $start_y + 1, $feetTextMark);
//</editor-fold>
//determine where to begin to print the absolute scale and date info
if ($end_x > $textStart_x) {
$textStart_x = $end_x;
}
$textStart_x += $textPadding;
//write the scale
$fontSize = 8;
$this->pdf->SetFont($this->font, "", $fontSize, "", true);
$scaleText = "Scale 1:" . $scale;
$this->pdf->Text($textStart_x, $end_y + 0.2, $scaleText);
//write the date
$date = date("M/d/Y");
$this->pdf->Text($textStart_x + 0.3, $end_y - 3.8, $date);
return new MgPdfPlotMetrics($this->margin[2], $start_y, $textStart_x, $end_y + 0.2 - $start_y);
}
