class check simplified

converter-SBGNML/src/main/java/lcsb/mapviewer/converter/model/sbgnml/SbgnmlXmlExporter.java

@@ -219,8 +219,7 @@ public class SbgnmlXmlExporter {
     bbox.setH(element.getHeight().floatValue());
     newGlyph.setBbox(bbox);
 
-    if (GlyphClazz.fromClazz(newGlyph.getClazz()).equals(GlyphClazz.MACROMOLECULE)
-        || GlyphClazz.fromClazz(newGlyph.getClazz()).equals(GlyphClazz.MACROMOLECULE_MULTIMER)) {
+    if (element instanceof Protein) {
       Protein protein = (Protein) element;
       for (ModificationResidue mr : protein.getModificationResidues()) {
         Glyph stateVariableGlyph = parseStateVariable(mr);