public function writeShapeLine(XMLWriter $objWriter, Line $shape)
{
// draw:line
$objWriter->startElement('draw:line');
$objWriter->writeAttribute('draw:style-name', 'gr' . $this->shapeId);
$objWriter->writeAttribute('svg:x1', Text::numberFormat(CommonDrawing::pixelsToCentimeters($shape->getOffsetX()), 3) . 'cm');
$objWriter->writeAttribute('svg:y1', Text::numberFormat(CommonDrawing::pixelsToCentimeters($shape->getOffsetY()), 3) . 'cm');
$objWriter->writeAttribute('svg:x2', Text::numberFormat(CommonDrawing::pixelsToCentimeters($shape->getOffsetX() + $shape->getWidth()), 3) . 'cm');
$objWriter->writeAttribute('svg:y2', Text::numberFormat(CommonDrawing::pixelsToCentimeters($shape->getOffsetY() + $shape->getHeight()), 3) . 'cm');
// text:p
$objWriter->writeElement('text:p');
$objWriter->endElement();
}