I would like to know about the available js libraries for drawing multilevel trees. Some functionalities I'd like to add to the created tree would be to make the nodes click-able and to be able to select an area on the graph and do actions based on the selection.
Maybe you should try arbor.js?
I'd check out Protovis. I've had good success with it. However, it is a very general library, giving you lots of building blocks to make nice graphs, but it won't be a turnkey solution.
Related
I'm working with a small group to build an interactive interface that will render a list of nodes and show how they are connected, almost like how some database modelers are. This is within a pre-existing application, and we will have up to a couple thousand data points that should be able to be dragged.
Some people have mentioned using a canvas element or packages like Konva.js or D3. I'm wondering if options like using a canvas or React-Konva would be able to handle something like this, or if we would need to go with an alternative like D3 or something else. Does anyone have any experience or knowledge about this?
It depends on what exactly you are going to draw and what kind of interactivity you needed. For Konva it may be hard to handle a thousand data points. But there are many Konva Performance Tips to improve the performance.
If some parts of your drawings are static, you can use layers or node.cache() method to boost the performance.
The only good way to know if a tool (Konva, D3 or anything else) is good is to make a prototype version of your app. Make a very simplified version with a lot of objects with every framework/library. And see what works best for you.
I am use https://github.com/tradingview/lightweight-charts javascript package.
As you can see in the picture, orders are shown in green boxes on the bitmex exchange. I want to learn how I can do this in my own table. I could not find a similar example in the document. Can you help me ?
I'm afraid it couldn't be done with lightweight-charts. If you'd like to add them and want to use TradingView's charts, I'd suggest you take charting library instead.
Is it possible to draw a graph in an HTML file using the jOrgChart jQuery plugin, as in the example below?
If that's not possible then what are other options are available for drawing such chart, without using Drupal?
Assuming that this question is about the jOrgChart jQuery plugin, and assuming that Drupal is an option to consider, then for sure it's worth considering the jOrgChart sandbox ... at least that's where I'll start from if some day I want to start using jOrgChart in Drupal.
For other Drupal based alternatives for charting, checkout the Comparison of charting modules I created (note to myself: add this jOrgChart plugin and sandbox project to that comparison).
Curious to hear to what extend this attempt is an answer to this charting question ...
PS: Checkout my profile for more details about my charting background, etc.
Very easy to use given a nested unordered list element.
Drag-and-drop functionality allows reordering of the tree and
underlying structure.
Showing/hiding a particular branch of the tree by clicking on the
respective node.
Nodes can contain any amount of HTML except and . Easy to
style.
You can specify that sub-trees should start collapsed, which is
useful for very large trees
for html
https://dl.dropboxusercontent.com/u/4151695/html/jOrgChart/example/example.html
I'm building a modeling tool that contains 2 sets of sliders -- one set that changes the amount per month payment (at top), and one set that shows user the date their debt is paid off (bottom), effectively so that changes to one can be seen in the other:
modeling tool http://doufeel.com/model.png
I was able to use jQuery UI slider to generate the payment data that creates the line graph at the bottom (using D3) but now I realize that I will probably need to create both sets of sliders in svg using either D3 or Raphael to make this work smoothly. I'm hoping to find someone who has addressed this, perhaps created something similar and might be able to advise on the best approach. Thanks in advance!
Need to support older browsers? Use Raphael. If not then D3.
Is it possible for someone to give me a few pointers on how to display a multidimensional array in the form of a bar graph?
The array is multidimensional, with three elements in each part - and the elements are determined by a HTML form.
So if it is possible to display this kind of array in the form of a bar graph in Javascript on a standard HTML site, i'd appreciate some help!
Thanks
Check out Flot and MilkChart. The former extends jQuery, the latter MooTools. Both use the canvas element, which is now supported by all the major browsers (even IE with the inclusion of an extra script). Take a look at the reputation tab in your stackoverflow profile to see it in use. I've used Flot (haven't tried MilkChart) in a project before and while the manner you pass data into it can seem a bit unintuitive at first, you'll find that it is actually pretty powerful for a non-flash charting solution. Flot also defines custom events that you can use to define chart interactions. Flot supports stacked bar charts with a plugin, and I believe you can do clustered bar charts with it as well.
You could always go with some sort of declarative graphics solution using div elements as bars in a graph, but that's not as easy or consistent across browsers as drawing charts with the canvas.
If you are leery of either of those solutions you could send the data to a service to return a static image. The Google Charting API supports grouped bar charts, or you could use some service you host yourself.
My recommendation is the first solution using the HTML canvas, specifically leveraging Flot since that is the library I have the most experience with and can vouch for. Maybe someone else has some comments about MilkChart.
EDIT:
Another library I forgot to mention is PlotKit which extends MochiKit. I haven't used it but apparently it supports not only the charting using the canvas element but also supports charting using SVG. Scalable Vector Graphics offer you another declarative graphics option beyond hacking a solution using HTML, however I'm not sure how crossbrowser an SVG based solution would be (particularly in IE).
EDIT:
Here is a jQuery plugin which charts using div elements. I personally don't like this option because I think it is more complex and less easily configurable than some of the other options. I feel like using HTML elements to create complex declarative graphics (while impressive) is sort of a hacked solution and will, in my experience, cause problems at some point.
According to the documentation, both Flot and MilkChart only work in IE if the excanvas extension is installed.
For greater portability, I suggest checking out the Google Visualization API which is incredibly simple to use and has many different display possibilities. Visualizations are rendered as either flash elements (interactive) or as plain images (static).