Group or cluster nodes with same node attribute with Cytoscape.js - cytoscape.js

I thought of doing it by passing position to all nodes but since the graph is formed when the user 'uploads a file', I can't have the position set earlier itself for this. Can you please suggest what to do here?
elements:[
"data": {"id":"a", "group":"g1", ....}
"data": {"id":"b", "group":"g1", ....}
"data": {"id":"c", "group":"g2", ....}
"data": {"id":"d", "group":"g3", ....}
.... ]
So, in this case, I'd like to see nodes with IDs "a" and "b" sort of form or stick closer and away from other nodes so as to show that these two belong to a single group.

Use parent field to group or cluster the nodes in your graph.
The field group can have two values 'nodes' or 'edges' which helps Cytoscape understand the element type.
In your case, we can do like:
elements = [
{ data: { id: "a", label: "a", group: "nodes", parent: "p1" } },
{ data: { id: "b", label: "b", group: "nodes", parent: "p1" } },
{ data: { id: "c", label: "c", group: "nodes", parent: "p2" } },
{ data: { id: "d", label: "d", group: "nodes", parent: "p2" } },
{ data: { id: "e", label: "e", group: "nodes", parent: "p2" } },
{ data: { id: "p1", label: "p1", group: "nodes" } },
{ data: { id: "p2", label: "p2", group: "nodes" } }
];
Screenshot of the arrangement achieved with the above snippet
Here, the ids a and b have p1 as parent so they will form a group and likewise, ids c, d and e will form a group under parent p2.
In order for the group node to be visible, we need to add a group: 'nodes' type object in the elements array.

Related

Faunadb create index on child item field

I'm trying to get an index on a field of a child item in my document. The data is this:
[
{
"ref": Ref(Collection("ColA"), "111111111111111111"),
"ts":1659241462840000,
"data":{
"name":"Test a",
"members":[
{
"userId":"1",
"roles":[
"admin"
]
}
]
}
},
{
"ref": Ref(Collection("ColA"), "111111111111111112"),
"ts":1659241462840000,
"data":{
"name":"Test b",
"members":[
{
"userId":"1",
"roles":[
"admin"
]
},
{
"userId":"2",
"roles":[
"read-only"
]
}
]
}
},
{
"ref": Ref(Collection("ColA"), "111111111111111113"),
"ts":1659241462840000,
"data":{
"name":"Test c",
"members":[
{
"userId":"2",
"roles":[
"admin"
]
}
]
}
}
]
Trying to using data.members.userId as term in the index. This only gives back one result when I use the index with the filter value '1'
Then I tried to create the index as following:
CreateIndex({
name: 'spaces_member_ids',
source: {
collection: Collection("ColA"),
fields: {
members: Query(
Lambda(
"ColA",
Select(["data", "members", "userId"], Var("ColA"), '')
)
),
},
},
terms: [
{ binding: "members" },
],
values: [
{ field: "data.name" },
{ field: "ref" },
]
})
But that gives no results when I use the index with the filter value '1' Both times I expect to get two items back (Test a and Test b).
Anyone knows how to create an index that gived back all the data of ColA filtered on field 'userId' in the 'members' array?
The problem is that there is no userId field as a direct descendant of the members array.
For background, Fauna index entries can only contain scalar values. Objects are not indexed at all. For arrays, one index entry is created per scalar value in the array. If you attempt to index multiple array fields, the number of index entries produced is the Cartesian product of the items in all indexed arrays.
If you create your index like so:
CreateIndex({
name: 'spaces_member_ids',
source: Collection("ColA"),
terms: [
{ field: ["data", "members", 0, "userId"] },
],
values: [
{ field: ["data", "name"] },
{ field: "ref" },
]
})
Then you'll be able to search for userId values that appear in the first item in the members array.
If you need to create index entries for all userId values from each ColA document, then your binding approach is close, but it needs to provide an array.
CreateIndex({
name: "spaces_member_ids",
source: {
collection: Collection("ColA"),
fields: {
members: Query(
Lambda(
"ColA",
Map(
Select(["data", "members"], Var("ColA"), []),
Lambda(
"member",
Select(["userId"], Var("member"), "")
)
)
)
),
},
},
terms: [
{ binding: "members" },
],
values: [
{ field: ["data", "name"] },
{ field: "ref" },
]
})
The notable changes that I made are:
Within the binding, Map is used to iterate on the members field in the document.
Simply returning the userId field value within a Map is sufficient to return an array of userId values.
Corrected the syntax in the values definition. Fauna indexes don't process dot notation.

Jquery Data Table custom binding

How to bind the column value in j query data table in below format, I mean final design will looks like.
You can use columns.data
var table = $('#dt').DataTable({
data: data,
columns: [{
title: "a",
data: "a"
}, {
title: "b",
data: "b"
}, {
title: "c",
data: function(row, type, set, meta){
if(!row.hasOwnProperty('c')){
row.c = row.a + row.b;
}
return row.c;
}
}]
});
See this JsFiddle documentation

Datatables with nested array

I've posed a question about Bootstrap Tables but meanwhile I moved to Datatables as I was feeling blocked. My problem, however, is the same.
None of the two can easily handle nested JSON results. For instance if I choose "field: author", it processes the following as "[Object Object], [Object Object]".
"author": [
{
"family": "Obama",
"given": "Barack"
},
{
"family": "Obama",
"given": "Michelle"
}
I can select the results individually, say "field: author[, ].family", which returns a list like "Obama, Obama". But I want an output like "given+family1, given+family2, ..".
You can use custom rendering. DataTables allows you to define custom rendering for each column.
Here is a sample that I worked out. I am doing custom rendering for Author column.
$(document).ready(function() {
var dataSet = [
{ "name": "How to DataTables", "author": [{ "firstname": "jack", lastname: "d" }, { "firstname": "dick", lastname: "j" }] },
{ "name": "How to Custom Render", "author": [{ "firstname": "bill", lastname: "g" }, { "firstname": "scott", lastname: "g" }] }
];
$('#example').DataTable({
data: dataSet,
columns: [
{ title:"Book Name",
data: "name" },
{
title: "Authors",
data: "author",
render: function(data, type, row) {
//return data.length;
var txt = '';
data.forEach(function(item) {
if (txt.length > 0) {
txt += ', '
}
txt += item.firstname + ' ' + item.lastname;
});
return txt;
}
}
]
});
});

Is it possible to add animations to dgrid rows?

We currently have a dgrid with a single column and rows like this:
Recently I added some code so that we can delete rows with the little X button that appears above the row when we hover them.
The handler calls this to delete the row:
this.grid.store.remove(rowId);
When we delete a row, since it's instantaneous and each row contains similar text, it's not always obvious to the user that something just happened.
I was wondering if it would be possible add some sort of dojo or css animation to the row deletion, like the deleted row fading or sliding out. This would make the row deletion more obvious.
Thanks
I have created a jsfiddle for animating(wipeOut) a selected row.
require({
packages: [
{
name: 'dgrid',
location: '//cdn.rawgit.com/SitePen/dgrid/v0.3.16'
},
{
name: 'xstyle',
location: '//cdn.rawgit.com/kriszyp/xstyle/v0.2.1'
},
{
name: 'put-selector',
location: '//cdn.rawgit.com/kriszyp/put-selector/v0.3.5'
}
]
}, [
'dojo/_base/declare',
'dgrid/OnDemandGrid',
'dgrid/Selection',
'dojo/store/Memory',
"dojo/fx",
'dojo/domReady!'
], function(declare, Grid, Selection, Memory,fx) {
var data = [
{ id: 1, name: 'Peter', age:24 },
{ id: 2, name: 'Paul', age: 30 },
{ id: 3, name: 'Mary', age:46 }
];
var store = new Memory({ data: data });
var options = {
columns: [
/*{ field: 'id', label: 'ID' },*/
{ field: 'name', label: 'Name' },
{ field: 'age', label: 'Age' }
],
store: store
};
var CustomGrid = declare([ Grid, Selection ]);
var grid = new CustomGrid(options, 'gridcontainer');
grid.on('dgrid-select', function (event) {
// Report the item from the selected row to the console.
console.log('Row selected: ', event.rows[0].data);
//WipeOut animation for selected row.
fx.wipeOut({ node: event.rows[0].element }).play();
});
});

Kendo UI BarChart Data Grouping

Not sure if this is possible. In my example I am using json as the source but this could be any size. In my example on fiddle I would use this data in a shared fashion by only binding two columns ProductFamily (xAxis) and Value (yAxis) but I would like to be able to group the columns by using an aggregate.
In this example without the grouping it shows multiple columns for FamilyA. Can this be grouped into ONE column and the values aggregated regardless of the amount of data?
So the result will show one column for FamilyA of Value 4850 + 4860 = 9710 etc.?
A problem with all examples online is that there is always the correct amount of data for each category. Not sure if this makes sense?
http://jsfiddle.net/jqIndy/ZPUr4/3/
//Sample data (see fiddle for complete sample)
[{
"Client":"",
"Date":"2011-06-01",
"ProductNumber":"5K190",
"ProductName":"CABLE USB",
"ProductFamily":"FamilyC",
"Status":"OPEN",
"Units":5000,
"Value":5150.0,
"ShippedToDestination":"CHINA"
}]
var productDataSource = new kendo.data.DataSource({
data: dr,
//group: {
// field: "ProductFamily",
//},
sort: {
field: "ProductFamily",
dir: "asc"
},
//aggregate: [
// { field: "Value", aggregate: "sum" }
//],
//schema: {
// model: {
// fields: {
// ProductFamily: { type: "string" },
// Value: { type: "number" },
// }
// }
//}
})
$("#product-family-chart").kendoChart({
dataSource: productDataSource,
//autoBind: false,
title: {
text: "Product Family (past 12 months)"
},
seriesDefaults: {
overlay: {
gradient: "none"
},
markers: {
visible: false
},
majorTickSize: 0,
opacity: .8
},
series: [{
type: "column",
field: "Value"
}],
valueAxis: {
line: {
visible: false
},
labels: {
format: "${0}",
skip: 2,
step: 2,
color: "#727f8e"
}
},
categoryAxis: {
field: "ProductFamily"
},
legend: {
visible: false
},
tooltip: {
visible: true,
format: "Value: ${0:N0}"
}
});​
The Kendo UI Chart does not support binding to group aggregates. At least not yet.
My suggestion is to:
Move the aggregate definition, so it's calculated per group:
group: {
field: "ProductFamily",
aggregates: [ {
field: "Value",
aggregate: "sum"
}]
}
Extract the aggregated values in the change handler:
var view = products.view();
var families = $.map(view, function(v) {
return v.value;
});
var values = $.map(view, function(v) {
return v.aggregates.Value.sum;
});
Bind the groups and categories manually:
series: [ {
type: "column",
data: values
}],
categoryAxis: {
categories: families
}
Working demo can be found here: http://jsbin.com/ofuduy/5/edit
I hope this helps.