default spatal dimension and value added

converter-sbml/src/main/java/lcsb/mapviewer/converter/model/sbml/compartment/SbmlCompartmentExporter.java

@@ -50,6 +50,8 @@ public class SbmlCompartmentExporter extends SbmlElementExporter<Compartment, or
     }
     // for now we don't have this information - needed for validation
     result.setConstant(false);
+    result.setValue(1.0);
+    result.setSpatialDimensions(3);
     if (isExtensionEnabled(SbmlExtension.MULTI)) {
       MultiCompartmentPlugin multiExtension = new MultiCompartmentPlugin(result);
       multiExtension.setIsType(false);