code: function h(d, outer) {
  		var height = self.options.cellSize*self._domainType[self.options.subDomain].row(d) + self.options.cellPadding*self._domainType[self.options.subDomain].row(d);
  		if (arguments.length === 2 && outer === true) {
  			height += self.options.domainGutter + self.domainVerticalLabelHeight + self.options.domainMargin[0] + self.options.domainMargin[2];
  		}
  		return height;
  	}
docs: Return the height of the domain block, without the domain gutter