void gotoData(int n, int nPoints) throws Exception {
		if (n > 0)
			Logger.info("skipping " + n + " data sets, " + nPoints + " points each");
		for (int i = 0; i < n; i++)
			if (isJvxl) {
				jvxlReadDefinitionLine(true);
				Logger.info("JVXL skipping: jvxlSurfaceDataCount=" + jvxlSurfaceDataCount + " jvxlEdgeDataCount="
						+ jvxlEdgeDataCount + " jvxlDataIsColorMapped=" + jvxlDataIsColorMapped);
				jvxlSkipData(nPoints, true);
			}
			else {
				skipData(nPoints, true);
			}
		if (isJvxl)
			jvxlReadDefinitionLine(true);
	}