How to translate the title, axis labels and legend of a chart? I have successfully created a grouped bar chart using the Forena module.
My application supports English, Portugese and Spanish.

But I am not able to translate my chart to Spanish and Portugese.
I need to translate the chart title, labels on each axis and the legend.

Here is the chart I created so far:



I wonder how I can translate the following strings in this chart:


Biological and chemical indicators
Average of indicators
Positive biological indicators
non responsive chemical indicators
Here are the steps to create a translated version of a chart (or more general: a report) using the Forena module:


Make sure (core) module locale is enabled.
Instead of using the "edit" icon to change the specs of a report, use the "translate" button next to edit. Then select the language to which you want the report (chart) to be translated.
On the next screen, enter the translated report (chart) title.
You should get some informational message as in this example (in which I created a 'nl' version of drupaladmin/active_users, for which I changed the tite from "Active users" to "Actieve Gebruikers"):


  Translation, Actieve Gebruikers has been created. Switch languages to translate.
  
  Your report, nl/drupaladmin/active_users has been saved.

After switching your active language to the language for which you want to create a translated version, you'll be able to change anything of the report (charts) specs to the specs of your additional language.
In your case here, you can now modify those 4 strings


Bottomline: tranlating Forena reports is similar to translating nodes.