code: function getCoords(oCoords) {
          return {
            tl: new fabric.Point(oCoords.tl.x, oCoords.tl.y),
            tr: new fabric.Point(oCoords.tr.x, oCoords.tr.y),
            bl: new fabric.Point(oCoords.bl.x, oCoords.bl.y),
            br: new fabric.Point(oCoords.br.x, oCoords.br.y)
          }
        }
docs: extracts coords