+ /**
+ * Makes a prefixed and valid Chimera attribute name. A jv_ prefix is applied
+ * for a 'Jalview' namespace, and any non-alphanumeric character is converted
+ * to an underscore.
+ *
+ * @param featureType
+ * @return <pre>
+ * @see https://www.cgl.ucsf.edu/chimera/current/docs/UsersGuide/midas/setattr.html
+ * </pre>
+ */
+ protected static String makeAttributeName(String featureType)
+ {
+ StringBuilder sb = new StringBuilder();
+ if (featureType != null)
+ {
+ for (char c : featureType.toCharArray())
+ {
+ sb.append(Character.isLetterOrDigit(c) ? c : '_');
+ }
+ }
+ String attName = NAMESPACE_PREFIX + sb.toString();
+
+ /*
+ * Chimera treats an attribute name ending in 'color' as colour-valued;
+ * Jalview doesn't, so prevent this by appending an underscore
+ */
+ if (attName.toUpperCase().endsWith("COLOR"))
+ {
+ attName += "_";
+ }
+
+ return attName;
+ }
+