+ * @return Number of sequences in alignment
+ */
+ int getAbsoluteHeight();
+
+ /**
+ *
+ * Answers the width of the alignment, including gaps, that is, the length of
+ * the longest sequence, or -1 if there are no sequences. Avoid calling this
+ * method repeatedly where possible, as it has to perform a calculation. Note
+ * that this width includes any hidden columns.