Download E-books D3 on AngularJS: Create Dynamic Visualizations with AngularJS PDF

By Ari Lerner, Victor Powell

D3 is a strong library for developing info visualizations for the net. With it, you could create compelling visible shows of your facts whereas writing rather little code.

In blend with AngularJS, the 2 can be utilized to create hugely sophiticated, dynamic and interactive facts visualizations.

The e-book covers an introdution to D3, addressing its significant suggestions and contours, in addition to the best way to combine D3 with AngularJS to make resuable, configurable, and dynamic visualizations. An emphasis is put on screenshots and reside code examples associated with from in the text.

But don't simply take our note for it. seriously look into a number of the examples the authors have created using the mix of D3 and AngularJS.

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Decisions again from calling data() include a mode referred to as enter() which additionally returns a brand new selector. This new selector will include the entire data/element pairs that don't but include components. In our case, it is going to appear just like the selector initially again from data() due to the fact initially all of the data/element pairs comprise no components. As we’ll see a section later, this wont continually be the case. Our unique selector may need ²²http://jsbin. com/AlIruJuW/1/edit Selections and knowledge Binding 18 kind of data/element pairs than the selector back from data(). If there have been fewer, calling enter() might go back an empty selector. we will be able to now upload our lacking DOM parts utilizing append('div') at the selector again from enter(). Our selector now appears like the next. To summarize, we will use . enter() and . append() to create new DOM components for lonely information goods. Let’s replace our bar chart instance above to include this new function. when you consider that we’ll be growing the DOM parts, we don’t have to have them difficult coded within the tag anymore. 1 2 three four five 6 7 eight nine 1 2 three four five

var facts = [10, 30, 60]; d3. select('body'). selectAll('. bar'). data(data) . enter(). append('div') . style('width', function(d){ go back d + '%'; }) . attr('class', 'bar'); detect within the code we additionally needed to choose the physique tag first. decisions may be played relative to different decisions. subsequently, we have to practice the choice relative to the physique in order that D3 understands the place any new

tags could be additional. We additionally have to specify the CSS classification in order that our CSS rule for every . bar can take impression. reside model: http://jsbin. com/eNOCuTeL/1/edit²³ ²³http://jsbin. com/eNOCuTeL/1/edit Selections and information Binding 19 the end result appears to be like an analogous yet now our code is extra versatile. to demonstrate this, let’s stroll via an instance of constructing a bar chart with an arbitrary variety of bars. during this instance, we’ll use d3. range(n) which easily produces an array of the desired size n; d3. range(3) returns the array [0, 1, 2] d3. range(4) go back the array [0, 1, 2, 3], and so forth. 1 2 three four five var facts = d3. range(100); d3. select('body'). selectAll('. bar'). data(data) . enter(). append('div') . style('width', function(d){ go back d + '%'; }) . attr('class', 'bar'); stay model: http://jsbin. com/eNOCuTeL/3/edit²⁴ do not forget that enter() produces a brand new selector of all of the data/elements pairs that experience no point within the selector again from data(). So, if we reran the code above through copying and pasting it bellow itself, the end result would seem a similar and no new
tags will be further. it's because the ²⁴http://jsbin. com/eNOCuTeL/3/edit Selections and information Binding 20 d3. select('body'). selectAll('. bar') could go back a hundred data/element pairs. Binding them to a new array of size a hundred may easy substitute the entire outdated facts values within the data/element pairs and because not one of the data/element pairs will be lacking a component, the enter() could go back an empty selector.

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