RGraph news and updates

Summary: News, updates and new techniques for both RGraph and also the HTML5 SVG and canvas tags.

A new version of RGraph is now available - version 5.02

Written by Richard Heyes, 1st August 2019

A new version of RGraph has been released

Today I've released a new version of RGraph - version 5.02. This is a minor release with no massive or really significant changes. Here's a list of the more significant changes - for the full list then you can visit the changelog.

 

Plans for version 5.1 of RGraph

Written by Richard Heyes, 29th July 2019

Update on the next version of RGraph

For the next version of RGraph - version 5.1 - I think I'm going to remove a lot of redundant legacy code. Some of the code in RGraph has been there for over a decade in order to preserve backwards compatibility.

But because it's so old and the current configuration style has been in place for some time it's no longer necessary and is only taking up space (like myself some would say...)!

So the current JSON based configuration is the only one that will be available but it's the best so there's no great loss.

Here's a short list of what's going to be taken out. It doesn't look like a lot but there will be a lot of testing that will be necessary and a lot of documentation pages will need updating because behind the scenes they use an older configuration style.

This will be the main focus of version 5.1 - possibly the only thing that's in the release (though a few other minor things may sneak in). If you have any other suggestions then let me know what they are using the contact form .

 

Version 5.01 of RGraph has been released

Written by Richard Heyes, 27th May 2019

A new version of RGraph has been released

It's been four months and feels like longer but version 5.01 of RGraph has finally been released. This version is not nearly as comprehensive as version 5.00 was - naturally. It also "finishes things off" that I missed in the long road to version 5.00.

So what has changed? For that you should consult the RGraph changelog. This release also has a few backwards-compatibility changes so you'll also want to consult the backwards-compatibility notices and advisories page too - particularly if you're upgrading from a past version.

Some of the changes include:

 

The RGraph Google Sheets connector has been upgraded

Written by Richard Heyes, 13th May 2019

Google Sheets logo

Previously the Google Sheets connector supported fetching rows, columns and cells by using the get() method. This method has now been updated to also support the fetching of a matrix of cells.

So whereas previously you could fetch individual rows, columns and cells - you can now fetch multiple rows of information in a single operation. For example:

var matrix = sheet.get('A2:E13');

You can see this in action by viewing the example chart on the Google Sheets documentation page.

Also new recently is the PHP version of the Google Sheets connector. So now there are versions available for the canvas and SVG libraries - and now one for PHP too.

You may ask why a PHP version is relevant - there are a couple of reasons that come to mind immediately:

If you don't use PHP then it shouldn't be too difficult for you to take this code and convert it into whatever language that you do use - PHP isn't exactly difficult to read and understand!

So now that's three libraries for Google Sheets - two of which are essentially the same and another for when you're looking to access your spreadsheet from PHP.

If you don't already use Google Sheets then it's well worth a look. It's essentially a web-based Excel.

It doesn't have all of the features of Excel but if your usage isn't too intense then it could save you a lot of money (since Google Sheets is basically free).

Availability

The PHP version of the tool is available immediately - and you can download the source-code here. The canvas and SVG JavaScript versions will however be available with the next version of RGraph when it's released (version 5.01).

 

Version 5.00 of RGraph now available!

Written by Richard Heyes, 20th January 2019

A new version of RGraph has been released

Version 5 of RGraph is now available to download. You can get it from the download page:

https://www.rgraph.net/download.html

Obviously this is a major upgrade so you should definitely read the changelog.

The main changes with this release include the improvement of property names for all chart types (for example gutterLeft has been changed to marginLeft) and the implementation of new text configuration properties (ie font/size/color/bold/italic for all bits of text).

So if you choose to upgrade you will definitely have to consult the API documentation for your chart type(s) to determine the correct property names you need to use from now on.

On a separate note - I've removed the demos from the website so they're now just available in the download. Meaning that the website is down to just 375ish pages - about 355 of which are indexed.

This led to a stint at position 15 on Google. However yesterday, mid-morning, it dropped 5 places immediately down to 20. And now it's 24 (ie on page 3).

So it's clear (to me) that some sort of penalty is in place. What else would cause a 5 place drop like that? I just don't know what the penalty is or why I have it.

 

A new stable version of RGraph is now available - 4.68

Written by Richard Heyes, 26th October 2018

A new version of RGraph has been released

Well I've finally got through my TODO list so I've released a new version of RGraph - version 4.68. Woo! You can see all of the changes that went into this release by looking through the changelog ( https://www.rgraph.net/changelog.html ).

Some of the changes in this release include:

Looking towards the next version I'll be looking to devise a way to bring some order to the canvas property names. So they look more like the way the SVG properties do.

Eg backgroundGridAutofitNumhlines would become backgroundGridHlinesCount. Some of the property names really need this.

 

Finally! A new version of RGraph is now available.

Written by Richard Heyes, 14th August 2018

A new version of RGraph has been released

That time has come - I've dusted off the release script - tidied up the download section - and finally gone through with it and released a new version of RGraph.

Woo! Yes calm down people (all 2 of you...) - version 4.67 is now available for download from the website. There's nothing particularly massive in it but there are bug fixes to the canvas Bipolar chart, new documentation for getting RGraph charts through PhantomJS (ie via the command line), a new SVG Gauge chart, the Google Sheets import utility can now be used without the rest of RGraph (ie standalone in your own apps) and angled X axis text for SVG charts.

You can read the changelog and download the new version with these links:

 

A spotlight on the CSV connector

Written by Richard Heyes, 26th July 2018

CSV logo

This news article is the last in the series of the 'Spotlight on...' posts and it concentrates on the dedicated CSV import object. This object is more comprehensive than the basic RGraph.AJAX.getCSV() AJAX function.

Think of getCSV() as a quick and dirty function whereas the CSV import object is more comprehensive and versatile.

If you have your own CSV import facility then by all means use that - you shouldn't have any trouble using it with RGraph.

 

A spotlight on the AJAX connector functions

Written by Richard Heyes, 24th July 2018

AJAX logo

A continuation of yesterday's spotlight on the Google Sheets connector and this one focuses on the AJAX functionality that RGraph comes with. There are two separate sets of AJAX functions - one for SVG and one for canvas.

They do anything from fetch a single number to fetching and parsing a JSON file. There's also a general AJAX fetch function so you can get hold of any page you wish to.

When using RGraph you're not limited to the AJAX functions that come with RGraph - you can quite happily use your own (or the jQuery AJAX functions for example).

 

A spotlight on the Google Sheets connector

Written by Richard Heyes, 23rd July 2018

Google Sheets logo

This news article shines a spotlight on the SVG Google Sheets connector (there's one for canvas too). Using this you can connect the charts that are displayed on your website directly to a spreadsheet in the online Google Sheets application - without any intervention on your part or having to export it first.

This way you can update a value in your spreadsheet and your website is updated immediately.

Initially the Google Sheets connector was created for use with RGraph but it's designed so that there are few dependencies - only a few functions in the RGraph core library and for the next release this will be removed from both the canvas and the SVG versions of the library.

So if you want to use this connector with your own code then you can - and it's going to be easier as of the next release.

 

A new stable release of RGraph

Written by Richard Heyes, 27th August 2017

A new version of RGraph has been released

The time has finally come!

Yes finally I've added version 4.63 to the website so you can download it from the download page (www.rgraph.net/download.html) if you want to.

Since the gap between this and version 4.62 has been approximately 3 months there's a little bit more in this release than there previously has been so the full list of changes is on the changelog page if you want to read it (www.rgraph.net/changelog.html).

Because the gap has been so long there may well be things that I've overlooked or forgotten to check so if you find anything - please let me know.

Worthy of note though, I think, is the fact that I've used the Xenu Link Sleuth tool (home.snafu.de/tilman/xenulink.html) to try to find as many broken links on the site as I can and clean them (and there were a lot!).

So maybe Google now will see my site as higher quality and move me up the rankings... Or perhaps I'm just destined to rot at the bottom of page 2 for ever. Hopefully it's the former though!

 

10 example charts to get you started with RGraph

Written by Richard Heyes, 5th June 2017

Here's 10 examples of SVG charts that you can make with RGraph to get you started and up and running. With these you can take the code and add your own configuration as required to help you cut the time required to get your charts looking the way you want.

There's Bar, Line and Pie charts amongst others, so like the demos that are in the download, feel free to take the code, adapt it (or don't!) and use it yourself.

 

New stable version of RGraph

Written by Richard Heyes, 10th May 2017

A new version of RGraph has been released

On Sunday I added the latest version (4.62 stable) of RGraph to the website. You can download it from the download page (www.rgraph.net/download.html#stable).

There's a new SVG Rose chart which has four distinct modes, various fixes to the SVG libraries. You can read the full changelog here: www.rgraph.net/changelog.html

 

A new stable release of RGraph is now available

Written by Richard Heyes, 18th February 2017

A new version of RGraph has been released

I've just released a new version of RGraph - version 4.61. You can read the changelog by clicking on the link.

This release adds a new SVG based Scatter chart and Waterfall chart. To go with the Scatter chart there's a new RGraph.SVG.parseDate() function that accepts a wide variety of formats eg 2012-01-06 12:14:12 6 Jan 2012 12:14 31st January 2012 12:14:12 31st January 2012 31st January January 31 2012 January 31

You can read the full list of changes on the changelog.

 

The JavaScript object model

Written by Richard Heyes, 19th December 2015

A new article is available that explores the JavaScript object model and explains the various options that you have when using it.

It only talks about the ES5, functional style of object-oriented programming and does not explain the new ES6 classes that are now available.

How does this apply to RGraph?

In order to keep compatibility with older browsers that may not support newer JavaScript features (ie the newer syntax for defining classes) all of the RGraph objects are defined using this style of object definition.

So understanding how JavaScript objects are defined and used will help you when you're working with RGraph.

 

SVG style paths for canvas with the RGraph path() function

Written by Richard Heyes, 3rd September 2015

As stated elsewhere canvas paths are (unnecessarily) verbose. The W3C has attempted to aid the issue by introducing support for SVG paths in the new Path2D object.

This new object, however, is not currently widely supported. So RGraph provides a work-around using the RGraph.path() function.

This is a description of that function and a version of it that has been extracted from the RGraph code and works standalone.

 

9 Good looking charts that you can find in the demos

Written by Richard Heyes, 16th August 2015

Creating good looking charts isn't terribly difficult - for some people. If like me you're rather limited in graphical abilities then creating attractive charts is not always as straight-forward as it sounds.

If you have a graphical designer on hand it can be easy - simply ask them for a mock-up that you can copy the graphical styling from or present them with a chart and say "Make it look pretty!".

But if you're not fortunate enough to have a graphical designer to hand then you're on your own. Almost, (by the way, on a completely unrelated side-note did you know that Google Image Search is a very good tool).

Just thought I would throw that in to the mix.