fromLine( line ) {

		const geometry = line.geometry;

		this.setPositions( geometry.attributes.position.array ); // assumes non-indexed

		// set colors, maybe

		return this;

	}
Setups this line segments geometry from the given line.

@param {Line} line - The line that should be used as a data source for this geometry.
@return {LineGeometry} A reference to this geometry.