Download chart from survey results

1 Initial Problem

The survey results were revamped with 5.2 and look much better. To report on the results of the survey outside ILIAS would be much easier if the charts could be swiftly downloaded for further use. 

2 Conceptual Summary

The results presentation in "Results > Details" comprises charts. Those charts are supposed to be ammended by a link for Download. 
Upon Click a screenshot of the chart is taken and downloaded for further processing. 

3 User Interface Modifications

3.1 List of Affected Views

Survey > Results > Details  > Charts

3.2 User Interface Details

3.3 New User Interface Concepts

none

4 Technical Information

{The maintainer has to provide necessary technical information, e.g. dependencies on other ILIAS components, necessary modifications in general services/architecture, potential security or performance issues.}

5 Contact

• Author of the Request: Tödt, Alexandra [atoedt]
• Maintainer: {Please add your name before applying for an initial workshop or a Jour Fixe meeting.}
• Implementation of the feature is done by: {The maintainer must add the name of the implementing developer.}

6 Funding

If you are interest in funding this feature, please add your name and institution to this list.

• ...

7 Discussion

The University of Marburg is also highly interested in such a feature. A successful extraction of the image via right click would suffice. But we also encountered other problems with the charts, mainly in matrix questions with many options (see picture). A fix of this problem would have a higher priority for us since we technically have the option to generate screenshots but not to influence the canvas.

8 Implementation

{The maintainer has to give a description of the final implementation and add screenshots if possible.}

Test Cases

Test cases completed at {date} by {user}

• {Test case number linked to Testrail} : {test case title}

Approval

Approved at {date} by {user}.