public SvgLength(string propertyName, SvgStyleableElement ownerElement, SvgLengthDirection direction, string defaultValue)
{
_ownerElement = ownerElement;
_direction = direction;
string baseVal = ownerElement.GetPropertyValue(propertyName);
if (baseVal == null || baseVal == "")
{
baseVal = defaultValue;
}
baseVal = SvgNumber.ScientificToDec(baseVal);
_cssLength = new CssAbsPrimitiveLengthValue(new CssPrimitiveLengthValue(baseVal, false), propertyName, ownerElement);
}