--- a/client/src/lib/mixins.js	Fri May 10 10:35:39 2019 +0200
+++ b/client/src/lib/mixins.js	Fri May 10 10:49:37 2019 +0200
@@ -31,14 +31,14 @@
 
 export const diagram = {
   methods: {
-    getDimensions() {
+    getDimensions({ main, nav }) {
       //dimensions and margins
       const svgWidth = document.querySelector("#" + this.containerId)
         .clientWidth;
       const svgHeight = document.querySelector("#" + this.containerId)
         .clientHeight;
-      const mainMargin = { top: 20, right: 20, bottom: 110, left: 80 };
-      const navMargin = {
+      const mainMargin = main || { top: 20, right: 20, bottom: 110, left: 80 };
+      const navMargin = nav || {
         top: svgHeight - mainMargin.top - 65,
         right: 20,
         bottom: 30,