[Xerte-dev] Re: Charting Library

Thu May 16 09:53:53 BST 2013

Yeah that would work – I was thinking more that you were going to create a separate page model (does that work in a similar way to the xerte/xenith stuff for adding page types?)

Allowing users to add scripts is mostly a security issue within the same site. For example, I could create a LO relatively easy with some javascript that posts some data to the script in management.php that changes the admin password. I then say “Hey Julian please take a look at this LO for me”, you open it and “IF” you happen to have a valid management.php session within the same browser then the password is changed and I am alerted to the fact. If no session then it just does what it was supposed to do…

Cross-domain you “might” be able to make that work too but maybe not – this is why forms have scripts that generate OTO keys etc…

Regards,

John Smith
Learning Technologist
School of Health & Life Sciences
Glasgow Caledonian University

From: xerte-dev-bounces at lists.nottingham.ac.uk [mailto:xerte-dev-bounces at lists.nottingham.ac.uk] On Behalf Of Julian Tenney
Sent: Thursday, May 16, 2013 9:25 AM
To: For Xerte technical developers
Subject: [Xerte-dev] Re: Charting Library

You can also do it this way and execute the callback when the script has loaded to use it.

[cid:image001.png at 01CE521B.2D7D8B00]

-----Original Message-----
From: xerte-dev-bounces at lists.nottingham.ac.uk<mailto:xerte-dev-bounces at lists.nottingham.ac.uk> [mailto:xerte-dev-bounces at lists.nottingham.ac.uk] On Behalf Of Smith, John
Sent: 16 May 2013 07:28
To: xerte-dev at lists.nottingham.ac.uk<mailto:xerte-dev at lists.nottingham.ac.uk>
Subject: [Xerte-dev] Re: Charting Library

D3 is probably the ultimate in charting tools and is HUGE i agree but a lot of that is the data manipulation routines, cross browser, legacy browser support stuff... Don't we potentially want all them too?

Making it a jquery plugin doesn't actually have that much overhead but i think they could/should further split the sections into sub plugins so that you can pick and choose which you require...

Its only 135kb minified though - not much or any bigger than 1 decent sized image - what we need to do in xenith is enable on-demand loading/background pre-fetching of these libraries i think and then there isn't an issue...

See here though for others http://techslides.com/50-javascript-charting-and-graphics-libraries/

I was actually wondering whether we should just make the editor code into jquery plugins which leverage the power of jquery chaining and oop in a sense, so something like:

$('#treemenu :nth-child(6)').insertBranch('...').bind('click', function().... Etc

Easy to do, maintain and read...

Regards

John Smith

Learning Technologist

School of Health and Life Sciences

Sent from Samsung Galaxy SII

"Pat @ Pgogy" <xerte at pgogywebstuff.com<mailto:xerte at pgogywebstuff.com>> wrote:

It is a plugin, but you could link the raw GitHub stuff to save space.

I think the jquery in XOT could be moved into a library into which D3 could be added

I've got two D3 plugins half developed, but I've just bundled the JS in

On 15 May 2013, at 15:44, Julian Tenney <Julian.Tenney at nottingham.ac.uk<mailto:Julian.Tenney at nottingham.ac.uk<mailto:Julian.Tenney at nottingham.ac.uk%3cmailto:Julian.Tenney at nottingham.ac.uk>>> wrote:

There are some really nice examples on their site. I think it’s abit more than I need: it seems to be a whole jquery like plugin, rather than just the charting stuff.

This is one example where being to load libraries from a CDN would be good, because then people can choose. I don’t know if you can make the charting setup FWS for anything but the simplest charts, which we already have.

After equations though, academics would make a lot of use of charts. I suppose they can do them as images, but it’s a bit of a hassle.

From: xerte-dev-bounces at lists.nottingham.ac.uk<mailto:xerte-dev-bounces at lists.nottingham.ac.uk<mailto:xerte-dev-bounces at lists.nottingham.ac.uk%3cmailto:xerte-dev-bounces at lists.nottingham.ac.uk>> [mailto:xerte-dev-bounces at lists.nottingham.ac.uk] On Behalf Of Pat @ Pgogy

Sent: 15 May 2013 15:33

To: For Xerte technical developers

Subject: [Xerte-dev] Re: Charting Library

D3 is pretty standard and jquery like

On 15 May 2013, at 15:17, Julian Tenney <Julian.Tenney at nottingham.ac.uk<mailto:Julian.Tenney at nottingham.ac.uk<mailto:Julian.Tenney at nottingham.ac.uk%3cmailto:Julian.Tenney at nottingham.ac.uk>>> wrote:

The ability to show a range of charts would be a good addition to the site template, and the toolkit, it would complement the MathJax stuff nicely.

Does anyone have any recommendations?

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Glasgow Caledonian University is a registered Scottish charity, number SC021474

Winner: Times Higher Education’s Widening Participation Initiative of the Year 2009 and Herald Society’s Education Initiative of the Year 2009.
http://www.gcu.ac.uk/newsevents/news/bycategory/theuniversity/1/name,6219,en.html

Winner: Times Higher Education’s Outstanding Support for Early Career Researchers of the Year 2010, GCU as a lead with Universities Scotland partners.
http://www.gcu.ac.uk/newsevents/news/bycategory/theuniversity/1/name,15691,en.html
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