I am building a dashboard using JS, that will show users plots of their sales data. Can you suggest a js library, which:
Can plot many points (100k for instance or even more)
Interactive
Supports SSR without losing interactivity (if it’s possible. I just assume that the only way to load this number of data without hurting UX is SSR)
Optional: works with React
Many thanks for any help!
There's probably many options but one could be Victory Chart. The library is built on top of D3.js and is heavily customizable. For your large dataset, I can think of one solution I used that is documented here.
One reason I'd suggest Victory is because they have a nice support community here.
I read many blog posts about that topic, here's one that compares a few "big" chart libraries with React Components.
For time series, I'd suggest having a look at this library.
If nothing works with large datasets, I think that your best option would be D3.js (with or without a React implementation).
In our organization resource allocation to projects is done as follows, it is done by a Microsoft excel sheet.
Projects are in the horizontal side, people are in the vertical side, each cell contains the percentage the resources are allocated to the project.
I was given the task of putting this to a web application. For this purpose I have Googled and found there are many options to go to with in particular I went through.
kendoui scheduler
DayPilot for JavaScript
Handsontable
Neither of them have the capability of being modified to the task I am required to do.
Are there any good libraries out there I can use and modify according to my needs?
I'm interested doing this using PHP, MYSQL and JavaScript(jQuery)
I would recommend using Ext Scheduler http://www.bryntum.com/products/scheduler/examples/. You can find many different uses for that and it's a well known javascript framework (the Ext).
You can find a working PHP + Ext Scheduler example here: http://www.bryntum.com/products/scheduler/download/?e=
I'm working on a project that involves exporting some HTML reports on a website into PDF format. I'd like to use the excellent flying-saucer Java library to do this but my major stumbling block is that several of these reports use the Google Visualization API to generate charts with JavaScript. Flying-saucer doesn't currently support parsing/executing JS, so those charts don't show up in the generated PDF file.
I was hoping to work around this by seeing if there was some kind of web service I could call instead via server-side code that would return the chart image in Base64 as a variable that I could reference in my view instead of getting it via JS.
The old Google Image Charts API is exactly what I'm looking for, but it has unfortunately been deprecated and it looks like it's slated to be removed completely by next year, so it's not an option.
I'm hoping Google has a newer alternative. If not, is there some other method that's recommended? Thanks!
You can call the getImageURI method of the chart to generate an image/octet stream URI. You can send that data to your server, and you should be able to reconstruct the chart as a .png image file. I've never tried to do this server-side, so I'm not sure precisely how you would go about it, but this java tutorial might be of some assistance to you: http://www.programcreek.com/2009/02/java-convert-image-to-byte-array-convert-byte-array-to-image/
Years ago I wrote Eastwood Charts which implemented the Google Image Charts API as a servlet, backed by JFreeChart, so that you could generate charts without having to rely upon Google, or send your data to their servers. :-)
I don't maintain Eastwood Charts anymore (like Google, I can't be relied upon either) but it is open source and the code works so you might find it helpful. You could also modify it to meet your own requirements, which is something that wasn't possible with the Google service.
I am working on Business intelligence based web dashboard, i have tried several Third party JavaScript grids namely JQGrid, ng-grid.
Problem is that when Grid try to Render with big data Object it stuck and crash the browser.
Now i am thinking to Write my own GRID using HTML5 web-worker,it will create html mark up in String from data object and then pass to main object and append in DOM.
Please write suggestion about this approach,
and name the Grid that use this approach if any..
Thanks
One of the most performant grids for huge amounts of data is SlickGrid.
If you are to write your own you should ensure you avoid paints, like comments mention, and use a virtual scroll if you really have a lot of rows (100k+++).
I once started writing my own grid and I can guarantee you that making it performant for lots of data while keeping it usable is not exactly an easy job :)
I am looking for a charts library to be displayed on a website. I will use intensively this library (for area, line and bar charts mainly), so I prefer to secure my choice before starting implementing.
The list of website chart libraries that I have initially considered are:
Plotkit
Emprise JS Charts
Sparkline
Protochart
gRaphael
Bluff
YUI Charts:
However after some researches on this forum and investigations on the web, I have reduced my candidate list to these two libraries:
Flot jQuery plugin
Google Visualization
Which one do you advise me to use and why (if you have worked with one or two of them, please tell me your feedback)?
How do they compare one to each other regarding ease of use, performance and features?
Thank you
EDIT: Based-Flash Chart libraries were not eligible with my constraints
I will try to answer my own question after some several tries and researches about these 2 visualization libraries, here are my own list of pros for each solution :
Flot Pros
jQuery plugin : if you are familiar with jQuery (or if your apps is integrated with jQuery), it seems natural to use Flot
Offline visualization : you can test or have it installed into an internal website. Google Visu can only work if you have acces to the google website !!
Customization : this is basically a JavaScript file so if you are good at JS coding, you can customize your charts as your convenience. Also the Flot plugin system allows you better modularity
Google Visualization Pros
Documentation : awesome ! Examples for each type of graphs are available in the Google site
Easy to use : Really. Easier than Flot (that requires to somehow customize the div container)
Powerful : you have many sorts of graphs and features (zooming, interactivity,...)
Java and Python API : it can helps a lot for constructing the Data Table (at least for me, I can use the Java API)
Bottom Line
If you are familiar with jQuery, go with Flot. If you need for some reasons to see your charts offline, go with Flot. If you want full control, go with Flot.
If you don't recognize yourself above, go with Google Visu. It's easy to learn and implement, very well documented and extremely powerful.
Not in your list, but I would recommend you have a look at Highcharts http://www.highcharts.com/
Highcharts is SVG, and as such, it is much more dynamic than Flot, you can restyle graphs with CSS, attach events, perform animations, etc...
It is also compatible with IE6 and it works server-side (thx to Batik)
I'm currently building a graph-intensive application, and chose Highcharts after lots of benchmarkings. I don't regret my choice.
The piwik project uses the Open Flash Chart (not on your list).
It's easy to use, has plenty of working examples very user friendly.
I am a user of Flot, and a big fan. I use it in a Grails application, and use stacked bar, line, and pie charts, including time-series and a bunch of interactive capabilities (i.e. turn off / on series with checkboxes, etc).
I found it to be a pleasure to work with overall, and feel the API is quite well developed (I saw that a bunch of other JS charting libraries adopted the API, so you'll even have some flexibility to move to another kit in the future). From looking at the google API just now for a minute, I think I like flot's better (although google may have ability to pass in a series as well, didn't see it from samples).
They just came out with a new version a few weeks ago (0.6), that supports plugins, which I expect will stimulate more innovation.
So I think part of this depends on other technologies you are planning to use. It seems like Visualization is integrated with GWT, so if you are thinking of using that, Visualization is the way to go. On the other hand, if you are thinking of using JQuery for AJAX, then Flot might be a more natural fit.
When I was making my decision to use this, it seems like Google didn't have interactive visualizations, only google charts (images), which is one of the reasons I went with Flot.
There is jqPlot (http://www.jqplot.com/), an open source project which looks good. Based on jQuery as well. I will give jqPlot a try, jQuery flot seems to be inactive.
Not in your list, but very impressive: ExtJS 4.0 charts