You can use `d3.select(this.parentNode)` to select parent element of current element. And for selecting root element you can use `d3.select(&quot;#invisibleG&quot;)`.

To get the root element g (as cuckovic points out) can be got using:

    circle = d3.select(&quot;#circle_id&quot;); 
    g = circle.select(function() { return this.parentNode; })
This will return a d3 object on which you can call functions like:

    transform = g.attr(&quot;transform&quot;);
Using

    d3.select(this.parentNode)
will just return the SVG element. Below I have tested the different variants.

&lt;!-- begin snippet: js hide: false console: true babel: false --&gt;

&lt;!-- language: lang-js --&gt;

    // Variant 1
    circle = d3.select(&quot;#c1&quot;);
    g = d3.select(circle.parentNode);
    d3.select(&quot;#t1&quot;).text(&quot;Variant 1: &quot; + g);
    // This fails:
    //transform = d3.transform(g.attr(&quot;transform&quot;));

    // Variant 2
    circle = d3.select(&quot;#c1&quot;);
    g = circle.node().parentNode;
    d3.select(&quot;#t2&quot;).text(&quot;Variant 2: &quot; + g);
    // This fails:
    //transform = d3.transform(g.attr(&quot;transform&quot;));


    // Variant 3
    circle = d3.select(&quot;#c1&quot;);
    g = circle.select(function() {
      return this.parentNode;
    });
    transform = d3.transform(g.attr(&quot;transform&quot;));
    d3.select(&quot;#t3&quot;).text(&quot;Variant 3: &quot; + transform);

&lt;!-- language: lang-html --&gt;

    &lt;script src=&quot;https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js&quot;&gt;&lt;/script&gt;
    &lt;html&gt;

    &lt;body&gt;
      &lt;svg height=&quot;200&quot; width=&quot;300&quot;&gt;
     &lt;g&gt;
      &lt;circle id=&quot;c1&quot; cx=&quot;50&quot; cy=&quot;50&quot; r=&quot;40&quot; fill=&quot;green&quot; /&gt;
     &lt;/g&gt;
    &lt;text id=&quot;t1&quot; x=&quot;0&quot; y=&quot;120&quot;&gt;&lt;/text&gt;
    &lt;text id=&quot;t2&quot; x=&quot;0&quot; y=&quot;140&quot;&gt;&lt;/text&gt;
    &lt;text id=&quot;t3&quot; x=&quot;0&quot; y=&quot;160&quot;&gt;&lt;/text&gt;
    &lt;/svg&gt;
    &lt;/body&gt;

    &lt;/html&gt;

&lt;!-- end snippet --&gt;



I see people are running setups like Nginx + Gunicorn + Flask.

Can someone explain what is the benefit of having Gunicorn in front of Flask? Why not just run Flask alone? Doesn&#39;t it consume more resources having Gunicorn + Flask running? Is Gunicorn able to reboot the Flask instance when it fails to respond?

What&#39;s also the purpose of having nginx on top of gunicorn? Isn&#39;t gunicorn enough? Again, more resources being spent?

What benefit is added by using Gunicorn + Nginx + Flask?

I am using Branch Specifier option of [Jenkins Git][1] plugin (v2.0) to run build on specific branch, e.g. `1.4`.

`${GIT_BRANCH}` in this case contains `origin/1.4` value.

How can I receive a name of the local Git branch used for cloning (i.e. just `1.4` without `origin/` prefix?

I&#39;ve tried `Check out to specific local branch` Additional Behaviour with branch name `1.4`, but nothing had changed.

I&#39;ve seen related [PR][2] on GitHub, but it was declined (as it fixes only one case with just `origin` remote).

  [1]: http://wiki.jenkins-ci.org/display/JENKINS/Git+Plugin
  [2]: https://github.com/jenkinsci/git-plugin/pull/154

How to receive local Git branch name with Jenkins Git plugin?

I want to access the parent element of current element

Here is the structure of HTML

    svg
       g id=invisibleG
         g
           circle
         g
           circle
         g
           circle

Basically I want to add text inside the circles when I hover over them.

So I want something like this on hover of any particular circle

    svg
           g id=invisibleG
             g
               circle --&gt; radius is increased and text presented inside that
               text
             g
               circle
             g
               circle

On hover I can select current element through d3.select(this),How can I get root element(g in my case)?

How to select parent element of current element in d3.js

I want to access the parent element of current element
Here is the structure of HTML
<pre><code class="hljs language-arduino">svg
 g id=invisibleG
 g
 circle
 g
 circle
 g
 circle
</code></pre>
Basically I want to add text inside the circles when I hover over them.
So I want something like this on hover of any particular circle
<pre><code class="hljs language-scss">svg
 g id=invisibleG
 g
 circle --> radius is increased and text presented inside that
 text
 g
 circle
 g
 circle
</code></pre>
On hover I can select current element through d3.select(this),How can I get root element(g in my case)?

I am in the process of porting a CLI library from Ruby over to Node.js. In my code I execute several third party binaries when necessary. I am not sure how best to accomplish this in Node.

Here&#39;s an example in Ruby where I call PrinceXML to convert a file to a PDF:

    cmd = system(&quot;prince -v builds/pdf/book.html -o builds/pdf/book.pdf&quot;)

What is the equivalent code in Node?

Execute a command line binary with Node.js

I&#39;m looking to append html onto a rectangle in D3 to give me a multiple line tooltip.  The bottom part is how I&#39;m adding a rectangle which may be part of the problem.  The top is the code that should work in my world.


     newRect.().html(&quot; &lt;textArea font-family=Verdana font-size=20 fill=blue &gt; Test &quot; + &quot;&lt;/br&gt;&quot; + &quot;Test2 &lt;/textArea&gt;&quot;);

Which does insert a text field into the SVG, it just doesn&#39;t display:&lt;br&gt;
**HTML**:


    &lt;rect id=&quot;rectLabel&quot; x=&quot;490&quot; y=&quot;674&quot; width=&quot;130&quot; height=&quot;160&quot; fill=&quot;red&quot;&gt;
        &lt;textarea fill=&quot;blue&quot; font-size=&quot;20&quot; font-family=&quot;Verdana&quot;&gt; Test &lt;/br&gt;Test2 &lt;/textarea&gt;
    &lt;/rect&gt;

I have a mouse over function which runs the following:


        newRect = svg.append(&quot;rect&quot;)
        .attr(&quot;x&quot;, xCor)
        .attr(&quot;y&quot;, yCor)
        .attr(&quot;width&quot;, 130)
        .attr(&quot;height&quot;, 160)
        .attr(&quot;fill&quot;, &quot;red&quot;)
        .attr(&quot;id&quot;, &quot;rectLabel&quot;);


I think I should be doing this but it doesn&#39;t work.  It just removes the g.node that I&#39;m trying to append to.

        newRect = $(this).enter().append(&quot;rect&quot;)
        .attr(&quot;x&quot;, xCor)
        .attr(&quot;y&quot;, yCor)
        .attr(&quot;width&quot;, 130)
        .attr(&quot;height&quot;, 160)
        .attr(&quot;fill&quot;, &quot;red&quot;)
        .attr(&quot;id&quot;, &quot;rectLabel&quot;);



Question:
Why doesn&#39;t my text appear?  Ive tried .html, .textArea.  I want a multiple line label so I don&#39;t think .text will work correct?  Also, how should I be appending the rectangle?

D3 Appending Text to a SVG Rectangle

I&#39;m trying to write a HTTP interceptor for my AngularJS app to handle authentication.

This code works, but I&#39;m concerned about manually injecting a service since I thought Angular is supposed to handle this automatically:

        app.config([&#39;$httpProvider&#39;, function ($httpProvider) {
        $httpProvider.interceptors.push(function ($location, $injector) {
            return {
                &#39;request&#39;: function (config) {
                    //injected manually to get around circular dependency problem.
                    var AuthService = $injector.get(&#39;AuthService&#39;);
                    console.log(AuthService);
                    console.log(&#39;in request interceptor&#39;);
                    if (!AuthService.isAuthenticated() &amp;&amp; $location.path != &#39;/login&#39;) {
                        console.log(&#39;user is not logged in.&#39;);
                        $location.path(&#39;/login&#39;);
                    }
                    return config;
                }
            };
        })
    }]);

What I started out doing, but ran into circular dependency problems:

        app.config(function ($provide, $httpProvider) {
        $provide.factory(&#39;HttpInterceptor&#39;, function ($q, $location, AuthService) {
            return {
                &#39;request&#39;: function (config) {
                    console.log(&#39;in request interceptor.&#39;);
                    if (!AuthService.isAuthenticated() &amp;&amp; $location.path != &#39;/login&#39;) {
                        console.log(&#39;user is not logged in.&#39;);
                        $location.path(&#39;/login&#39;);
                    }
                    return config;
                }
            };
        });
    
        $httpProvider.interceptors.push(&#39;HttpInterceptor&#39;);
    });

Another reason why I&#39;m concerned is that the [section on $http][1] in the Angular Docs seem to show a way to get dependencies injected the &quot;regular way&quot; into a Http interceptor. See their code snippet under &quot;Interceptors&quot;:

    // register the interceptor as a service
    $provide.factory(&#39;myHttpInterceptor&#39;, function($q, dependency1, dependency2) {
      return {
        // optional method
        &#39;request&#39;: function(config) {
          // do something on success
          return config || $q.when(config);
        },
     
        // optional method
       &#39;requestError&#39;: function(rejection) {
          // do something on error
          if (canRecover(rejection)) {
            return responseOrNewPromise
          }
          return $q.reject(rejection);
        },
     
     
     
        // optional method
        &#39;response&#39;: function(response) {
          // do something on success
          return response || $q.when(response);
        },
     
        // optional method
       &#39;responseError&#39;: function(rejection) {
          // do something on error
          if (canRecover(rejection)) {
            return responseOrNewPromise
          }
          return $q.reject(rejection);
        };
      }
    });
     
    $httpProvider.interceptors.push(&#39;myHttpInterceptor&#39;);

Where should the above code go?

I guess my question is what&#39;s the right way to go about doing this?

Thanks, and I hope my question was clear enough.

  [1]: http://docs.angularjs.org/api/ng.$http

AngularJS: Injecting service into a HTTP interceptor (Circular dependency)

I have code snippet in which there is a Angular Modular Controller, but there is a function inside the same controller and with a call, which is raising doubt in my mind that is this way of coding allowed in Javascript or Angular? If Yes then how does it read it? See the below code format I have:

    obj.controller(&#39;CartController&#39;,function($scope){
    
      $scope.totalCart = function(){
    	var total = 10;    	
    	return total;
      }
      function calculate(){
    	...Some Logic..
      }
    
      $scope.$watch($scope.totalCart, calculate);
    )};

Please help me to understand that is this type of function definition and call within a controller allowed in Angular/Javascript?

Function inside the AngularJS Controller

Git is installed and is in the path.

Platform: [Red Hat Enterprise Linux][1] 5.8.

    &gt;which git
    /usr/local/bin/git

Yet bower can&#39;t find it:

    bower angular#1.0.6  ENOGIT git is not installed or not in the PATH

What is the recommended work-around?

  [1]: https://en.m.wikipedia.org/wiki/Red_Hat_Enterprise_Linux


Bower: ENOGIT Git is not installed or not in the PATH

Given a datum containing multiple data elements, such as an object or array, is it possible to set multiple attributes on a selection with a single value function?

E.g. something like:

    var data = [{ &#39;x&#39;: 10, &#39;y&#39;: 20, &#39;r&#39;: 5 }];
    d3.select(&#39;body&#39;).append(&#39;svg&#39;).selectAll(&#39;circle&#39;)
        .data(data)
        .enter().append(&#39;circle&#39;)
        .attr(&#39;cx cy r&#39;, function (d) {
            return [d.x, d.y, d.r];
        });

instead of:

    var data = [{ &#39;x&#39;: 10, &#39;y&#39;: 20, &#39;r&#39;: 5 }];
    d3.select(&#39;body&#39;).append(&#39;svg&#39;).selectAll(&#39;circle&#39;)
        .data(data)
        .enter().append(&#39;circle&#39;)
        .attr(&#39;cx&#39;, function (d) {
            return d.x;
        });
        .attr(&#39;cy&#39;, function (d) {
            return d.y;
        });
        .attr(&#39;r&#39;, function (d) {
            return d.r;
        });


How to set multiple attributes with one value function?

I am searching for a graph which has **3 dimensions (x, y, and z)** and uses **D3.js**. Please let me know if there are any data visualization site where I can find such graph or if there is one on [d3js.org][1] that I have missed  out somehow.


  [1]: http://d3js.org

3 dimension (X, Y and Z) graph using D3.js

I would like to create multiple non-nested elements using d3 to create a structure like this:

		&lt;div id=&quot;parent&quot;&gt;
			&lt;p&gt; from data[0] &lt;/p&gt;
			&lt;p&gt; from data[0] &lt;/p&gt;

			&lt;p&gt; from data[1] &lt;/p&gt;
			&lt;p&gt; from data[1] &lt;/p&gt;

			&lt;p&gt; from data[2] &lt;/p&gt;
			&lt;p&gt; from data[2] &lt;/p&gt;
		&lt;/div&gt;

creating nested structures would go something like

		d3.select(&#39;#parent&#39;).selectAll(&#39;p&#39;).data(data).enter().
               append(&#39;p&#39;)...append(&#39;p&#39;)

but I would like to maintain the original selection even after the append, so I could continue appending to the parent element. Thank you!

Appending multiple non-nested elements for each data member with D3.js

I need to know exactly the width and height for an arbitrary `g` element in my `SVG` because I need to draw a selection marker around it once the user has clicked it.

What I&#39;ve seen in the internet is something like: `d3.select(&quot;myG&quot;).style(&quot;width&quot;)`. The problem is that the element will not always have an explicit width attribute set. For instance, when I create a circle inside the `g`, it will have the radious (`r`) set instead of the width. Even if I use the `window.getComputedStyle` method on a `circle`, it will return &quot;auto&quot;.

Is there a way to calculate the width of an arbitrary `svg` selement in `D3`?

Thank you.

Content Type	Original Author	Original Content on Stackoverflow
Question	user3074097	View Question on Stackoverflow
Solution 1 - Javascript	cuckovic	View Answer on Stackoverflow
Solution 2 - Javascript	Molossus	View Answer on Stackoverflow

How to select parent element of current element in d3.js

Javascript Problem Overview

Javascript Solutions

Solution 1 - Javascript

Solution 2 - Javascript

How to receive local Git branch name with Jenkins Git plugin?

What benefit is added by using Gunicorn + Nginx + Flask?

Attributions