Sami Makkonen

Qt Charts 1.3.0 released

Published Wednesday June 19th, 2013
13 Comments on Qt Charts 1.3.0 released
Posted in Uncategorized

We have now released the 1.3.0 version of the Charts which brings Polar and Boxplot charts and some API enhancements. As usual the package is available in the Customer Portal.

Polar chart enables showing data in a circular graph. Polar charts support line, spline, area, and scatter series, and all axis types supported by those series.

Boxplot (also known as box-and-whiskers plot) is a convenient way of illustrating the minimum and maximum values (i.e. the range) with the quartiles. Boxplots have several use cases in statistical analysis e.g. in describing populations or analyzing stock exchange share prices.

With this version of charts we also now provide a Qt Quick 2 support which enables e.g. combining charts to applications created with Qt Quick Controls. However please note that Qt Charts still uses QGraphicsView framework under the hood even with Qt Quick 2. Therefore charts performance is usually better with Qt Quick 1 than with Qt Quick 2.

The Qt Charts 1.3.0 contains also several smaller improvements and fixes which are listed in the README file included in the source package. For an overview of the Charts functionality, please refer to the Charts product page.

We have made the Charts 1.3.0 release available through the Customer Portal. If you don’t have a commercial license for Qt, you can test out the Charts  by downloading a 30-day free evaluation. Let us know what you think!

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13 comments

Kaleva says:

Can you give me a reason to use Qt Charts instead of http://matplotlib.org/ ???

Makkonen Sami Makkonen Sami says:

Matplotlib is definitely a versatile plotting library with rich set of functionality. However as far as I understand matplotlib has a qt4 rendering backend but you still need to implement the plotting in Python? With Qt Charts you can write the charting with Qt C++ or QML.

Cesar says:

Do Qt Charts 1.3.0 support standar Gantt Charts?

By already having box plots, Gantt functionality could also be built-in, isn’t it?

Besides, what about ‘Gantt Box Chart’?
http://chandoo.org/wp/2010/07/12/gantt-box-chart-tutorial-template/

Makkonen Sami Makkonen Sami says:

Gantt charts are not supported. Gantt Box seems interesting and existing Boxplot might be actually quite close already with little bit of tweaking.

Cesar says:

Thanks for the info Makkonen.

If you already have Boxplot working, wouldn’t Gantt charts be easy to achieve for R&D team?

Considering this, will Gantt charts be supported in future releases?

I ask this because Gantt charts are very used in the business world (perhaps more than boxplot).

Makkonen Sami Makkonen Sami says:

Gantt has a lot of requirements (e.g. mapping dependencies between tasks, split tasks) which are quite different from existing chart types and therefore it is not in the roadmap at the moment.

Cesar says:

Thabks again for the info Makkonen

Regarding traditional Gantt, in many cases, it is not a MS-Project Gantt complexity what is needed, but at least the charting part, and the between-dates representation.

So, couldGantt Box Chart, and at least a basic level (basic, but still very useful) of traditional Gantt chart, could be considered for the roadmap?

Makkonen Sami Makkonen Sami says:

Thanks for the feedback about the Gantt. We have to look at it at some point but as for now we have not included in the roadmap.

brexis says:

good news guy. Very good job !

Jalex says:

Where can I download Qt Charts 1.3 for test it?

Makkonen Sami Makkonen Sami says:

If you are an existing Qt commercial licence holder please download it from: Customer Portal. Evaluation is also available from here

Tristan says:

How much does an QT enterprise license cost. I can’t find this information anywhere. Is it a one time fee? Annual fee? Also is there any documentation that comes with QT Charts. QT Plotting Widget has some nice documentation and it’s free but I really need the polar plot functionality and would be willing to pay for QT Charts if the price is reasonable.

Makkonen Sami Makkonen Sami says:

For pricing please contact our sales through http://qt.digia.com/About-us/Contact-us/. Documentation and example applications are included. You can examine these by requesting an evaluation version.

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