1 files changed, 13 insertions, 5 deletions
diff --git a/src/client/northstar/dash-fields/HistogramField.ts b/src/client/northstar/dash-fields/HistogramField.ts
index f01f08487..e6f32272e 100644
--- a/src/client/northstar/dash-fields/HistogramField.ts
+++ b/src/client/northstar/dash-fields/HistogramField.ts
@@ -3,13 +3,15 @@ import { custom, serializable } from "serializr";
 import { ColumnAttributeModel } from "../../../client/northstar/core/attribute/AttributeModel";
 import { AttributeTransformationModel } from "../../../client/northstar/core/attribute/AttributeTransformationModel";
 import { HistogramOperation } from "../../../client/northstar/operations/HistogramOperation";
-import { ObjectField, Copy } from "../../../new_fields/ObjectField";
+import { ObjectField } from "../../../new_fields/ObjectField";
 import { CurrentUserUtils } from "../../../server/authentication/models/current_user_utils";
 import { OmitKeys } from "../../../Utils";
 import { Deserializable } from "../../util/SerializationHelper";
+import { Copy, ToScriptString } from "../../../new_fields/FieldSymbols";
 
 function serialize(field: HistogramField) {
-    return OmitKeys(field.HistoOp, ['Links', 'BrushLinks', 'Result', 'BrushColors', 'FilterModels', 'FilterOperand']).omit;
+    let obj = OmitKeys(field, ['Links', 'BrushLinks', 'Result', 'BrushColors', 'FilterModels', 'FilterOperand']).omit;
+    return obj;
 }
 
 function deserialize(jp: any) {
@@ -31,10 +33,10 @@ function deserialize(jp: any) {
             }
         });
         if (X && Y && V) {
-            return new HistogramField(new HistogramOperation(jp.SchemaName, X, Y, V, jp.Normalization));
+            return new HistogramOperation(jp.SchemaName, X, Y, V, jp.Normalization);
         }
     }
-    return new HistogramField(HistogramOperation.Empty);
+    return HistogramOperation.Empty;
 }
 
 @Deserializable("histogramField")
@@ -50,6 +52,12 @@ export class HistogramField extends ObjectField {
     }
 
     [Copy]() {
-        return new HistogramField(this.HistoOp.Copy());
+        let y = this.HistoOp;
+        let z = this.HistoOp.Copy;
+        return new HistogramField(HistogramOperation.Duplicate(this.HistoOp));
+    }
+
+    [ToScriptString]() {
+        return this.toString();
     }
 }
 \ No newline at end of file