docs: void buildLinePortion(final Projection pProjection,
  						  final boolean pStorePoints){
  		final int size = mOriginalPoints.size();
  		if (size < 2) { // nothing to paint
  			return;
  		}
          computeProjected(pProjection);
          computeDistances();
  		final PointL offset = new PointL();
  		getBestOffset(pProjection, offset);
  		mSegmentClipper.init();
  		clipAndStore(pProjection, offset, false, pStorePoints, mSegmentClipper);
  		mSegmentClipper.end();
  	}