Visulaization on web interface in ArangoDb not working as expected -


i testing arangodb using graph features provided framework.

i trying create simple graph below, similar java driver example provided here, https://github.com/arangodb/arangodb-java-driver/

    list<edgedefinitionentity> edgedefinitions = new arraylist<edgedefinitionentity>();     edgedefinitionentity edgedefinition = new edgedefinitionentity();      edgedefinition.setcollection("myedgecollection");     list<string> = new arraylist<string>();     from.add("mycollection1");     edgedefinition.setfrom(from);      list<string> = new arraylist<string>();     to.add("mycollection2");     edgedefinition.setto(to);       edgedefinitions.add(edgedefinition);      graphentity graph = arangodriver.creategraph("mygraph",             edgedefinitions, null, true);       user myobject1 = new user("homer", 38);     user myobject2 = new user("bart", 36);      user myobject3 = new user("marge", 39);     user myobject4 = new user("lisa", 40);      documententity<user> vertexfrom1 = arangodriver.graphcreatevertex(             "mygraph", "mycollection1", myobject1, true);     documententity<user> vertexfrom2 = arangodriver.graphcreatevertex(             "mygraph", "mycollection1", myobject2, true);      documententity<user> vertexto1 = arangodriver.graphcreatevertex(             "mygraph", "mycollection2", myobject3, true);      documententity<user> vertexto2 = arangodriver.graphcreatevertex(             "mygraph", "mycollection2", myobject4, true);      edgeentity<?> edge1 = arangodriver.graphcreateedge("mygraph",             "myedgecollection", null, vertexfrom1.getdocumenthandle(),             vertexto1.getdocumenthandle(), null, null);     edgeentity<?> edge2 = arangodriver.graphcreateedge("mygraph",             "myedgecollection", null, vertexfrom2.getdocumenthandle(),             vertexto2.getdocumenthandle(), null, null);

the edge collection seems have right mapping,

{"_from":"mycollection1/1544266710","_to":"mycollection2/1544987606"} {"_from":"mycollection1/1544528854","_to":"mycollection2/1545249750"}

i trying visualise graph in web interface. graph visualization showing weird behaviour not understand. in above setup, expect 4 nodes in graph edges between "homer" -- "marge" , "bart" -- "lisa" see 2 nodes , 1 edge, i.e. homer -- marge.

visulaization view shows there no nodes , on revisit same page nodes appear.

the graph viewer starts random vertex. means uses totally different start vertex whenever it's opened.

this because graph in general case can contain many vertices , displaying of them not option because may take long time render or crash browser. vertex put center of display @ start not easy determine because require graph viewer know vertex more important others or important users. doesn't know that, there random start vertex selection.

you can select different start/center vertex clicking on filter icon in top right of graph viewer. bring search input field can use select start vertex attribute (e.g. name == homer if vertices contain name attribute).

if such vertex exists, put center of screen, along directly connected vertices. note relationships/edges start vertex directly connected vertices shown. indirect connections not shown in graph viewer default. clicking on of vertices displayed expand (or contract) them , may bring further relationships.

again of done because may not possible display entire graph @ start (imagine graph few million nodes). question indicates, current solution may not intuitive.


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