Issue #805: tmdet structure preset constant

src/tmdet-extension/behavior.ts

@@ -41,6 +41,7 @@ import { DebugUtil } from './debug-utils';
 
 const Tag = MembraneOrientation.Tag;
 const TMDET_MEMBRANE_ORIENTATION = 'TMDET Membrane Orientation';
+const TMDET_STRUCTURE_PRESET_ID = 'tmdet-preset-membrane-orientation';
 
 export const TMDETMembraneOrientation = PluginBehavior.create<{ autoAttach: boolean }>({
     name: 'tmdet-membrane-orientation-prop',
@@ -231,7 +232,7 @@ async function loadStructure(ctx: PluginUIContext, params: any, pdbtmDescriptor:
 
     // create membrane representation
     await builders.structure.hierarchy.applyPreset(
-        trajectory, 'default', { representationPreset: 'tmdet-preset-membrane-orientation' as any });
+        trajectory, 'default', { representationPreset: TMDET_STRUCTURE_PRESET_ID as any });
 }
 
 
@@ -310,7 +311,7 @@ const MembraneOrientation3D = PluginStateTransform.BuiltIn({
 });
 
 export const MembraneOrientationPreset = StructureRepresentationPresetProvider({
-    id: 'tmdet-preset-membrane-orientation',
+    id: TMDET_STRUCTURE_PRESET_ID,
     display: {
         name: TMDET_MEMBRANE_ORIENTATION, group: 'Annotation',
         description: 'Shows orientation of membrane layers. Data calculated with TMDET algorithm.' // TODO add ' or obtained via RCSB PDB'